fix(order): prevent duplicate subscriptions and repair invite gifts

internal/logic/auth/trialEmailWhitelist.go

@@ -2,6 +2,7 @@ package auth
 
 import (
 	"context"
+	"net/mail"
 	"strings"
 
 	"github.com/perfect-panel/server/internal/config"
@@ -15,11 +16,10 @@ func IsEmailDomainWhitelisted(email, whitelistCSV string) bool {
 	if whitelistCSV == "" {
 		return false
 	}
-	parts := strings.SplitN(email, "@", 2)
-	if len(parts) != 2 {
+	_, domain, ok := parseStrictEmail(email)
+	if !ok {
 		return false
 	}
-	domain := strings.ToLower(strings.TrimSpace(parts[1]))
 	for _, d := range strings.Split(whitelistCSV, ",") {
 		if strings.ToLower(strings.TrimSpace(d)) == domain {
 			return true
@@ -32,10 +32,16 @@ func ShouldGrantTrialForEmail(register config.RegisterConfig, email string) bool
 	if !register.EnableTrial {
 		return false
 	}
+	if !IsValidTrialEmail(email) {
+		return false
+	}
 	// 无论白名单是否启用，泛域名邮箱（含 + 别名或 Gmail 点号）始终拒绝赠送
 	if IsDisposableAlias(email) {
 		return false
 	}
+	if isConfusableGmailDomain(emailDomain(email)) {
+		return false
+	}
 	if !register.EnableTrialEmailWhitelist {
 		return true
 	}
@@ -52,11 +58,10 @@ func ShouldGrantTrialForEmail(register config.RegisterConfig, email string) bool
 // For Gmail-like domains, local part containing "." or "+" is rejected.
 // For all other domains, only "+" alias is rejected.
 func IsDisposableAlias(email string) bool {
-	parts := strings.SplitN(strings.ToLower(strings.TrimSpace(email)), "@", 2)
-	if len(parts) != 2 {
+	local, domain, ok := parseStrictEmail(email)
+	if !ok {
 		return false
 	}
-	local, domain := parts[0], parts[1]
 
 	// All domains: reject + alias
 	if strings.ContainsRune(local, '+') {
@@ -74,11 +79,10 @@ func IsDisposableAlias(email string) bool {
 // Removes dots from local part for Gmail-like providers (gmail.com, googlemail.com).
 func NormalizeEmail(email string) string {
 	email = strings.ToLower(strings.TrimSpace(email))
-	parts := strings.SplitN(email, "@", 2)
-	if len(parts) != 2 {
+	local, domain, ok := parseStrictEmail(email)
+	if !ok {
 		return email
 	}
-	local, domain := parts[0], parts[1]
 
 	// Strip + alias
 	if idx := strings.IndexByte(local, '+'); idx != -1 {
@@ -101,6 +105,51 @@ func isGmailLikeDomain(domain string) bool {
 	return false
 }
 
+func IsValidTrialEmail(email string) bool {
+	local, domain, ok := parseStrictEmail(email)
+	if !ok {
+		return false
+	}
+	return local != "" && domain != ""
+}
+
+func parseStrictEmail(email string) (local, domain string, ok bool) {
+	email = strings.ToLower(strings.TrimSpace(email))
+	if email == "" || strings.ContainsAny(email, " \t\r\n") {
+		return "", "", false
+	}
+	addr, err := mail.ParseAddress(email)
+	if err != nil || addr.Address != email || addr.Name != "" {
+		return "", "", false
+	}
+	parts := strings.Split(addr.Address, "@")
+	if len(parts) != 2 {
+		return "", "", false
+	}
+	local = strings.TrimSpace(parts[0])
+	domain = strings.Trim(strings.TrimSpace(parts[1]), ".")
+	if local == "" || domain == "" || strings.Contains(domain, "..") || !strings.Contains(domain, ".") {
+		return "", "", false
+	}
+	return local, domain, true
+}
+
+func emailDomain(email string) string {
+	_, domain, ok := parseStrictEmail(email)
+	if !ok {
+		return ""
+	}
+	return domain
+}
+
+func isConfusableGmailDomain(domain string) bool {
+	switch strings.ToLower(strings.TrimSpace(domain)) {
+	case "gmaial.com", "gmial.com", "gmai.com", "gamil.com", "gmal.com", "gmail.co", "gmail.con":
+		return true
+	}
+	return false
+}
+
 // NormalizedEmailHasTrial returns true if any user with the same normalized email
 // already holds a trial subscription. Only performs the cross-user DB check when
 // normalization actually changes the email (i.e., dots removed or + alias stripped).

internal/logic/auth/trialEmailWhitelist_test.go

@@ -0,0 +1,188 @@
+package auth
+
+import (
+	"testing"
+
+	"github.com/perfect-panel/server/internal/config"
+)
+
+func TestNormalizeEmail(t *testing.T) {
+	tests := []struct {
+		input string
+		want  string
+	}{
+		// Gmail dot trick
+		{"a.v.x.xx@gmail.com", "avxxx@gmail.com"},
+		{"john.doe@gmail.com", "johndoe@gmail.com"},
+		{"a.b.c.d.e@gmail.com", "abcde@gmail.com"},
+		// Gmail + alias
+		{"user+tag@gmail.com", "user@gmail.com"},
+		{"a.b+tag@gmail.com", "ab@gmail.com"},
+		// Googlemail
+		{"a.b@googlemail.com", "ab@googlemail.com"},
+		// Non-Gmail: dots preserved
+		{"john.doe@outlook.com", "john.doe@outlook.com"},
+		{"john.doe@qq.com", "john.doe@qq.com"},
+		// + alias stripped for all providers
+		{"user+spam@outlook.com", "user@outlook.com"},
+		{"user+spam@qq.com", "user@qq.com"},
+		// Case insensitive
+		{"User@Gmail.COM", "user@gmail.com"},
+		{"A.B@Gmail.com", "ab@gmail.com"},
+		// No change for normal non-gmail email
+		{"abc@163.com", "abc@163.com"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.input, func(t *testing.T) {
+			got := NormalizeEmail(tt.input)
+			if got != tt.want {
+				t.Errorf("NormalizeEmail(%q) = %q, want %q", tt.input, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestNormalizeEmail_NoChangeSkipsCheck(t *testing.T) {
+	// These emails should NOT trigger cross-user check (normalized == original)
+	noChangeCases := []string{
+		"abc@163.com",
+		"john.doe@outlook.com",
+		"user@qq.com",
+	}
+	for _, email := range noChangeCases {
+		normalized := NormalizeEmail(email)
+		lower := email
+		if normalized == lower {
+			// correct: no normalization change, NormalizedEmailHasTrial would return false early
+		}
+	}
+}
+
+func TestShouldGrantTrialForEmail(t *testing.T) {
+	// 模拟线上配置：白名单开启，gmail.com 也在名单里
+	rcWithGmail := config.RegisterConfig{
+		EnableTrial:               true,
+		EnableTrialEmailWhitelist: true,
+		TrialEmailDomainWhitelist: "hifastapp.com,hifastvpn.com,126.com,139.com,163.com,gmail.com",
+	}
+	// 白名单关闭
+	rcNoWhitelist := config.RegisterConfig{
+		EnableTrial:               true,
+		EnableTrialEmailWhitelist: false,
+	}
+
+	tests := []struct {
+		name   string
+		rc     config.RegisterConfig
+		email  string
+		want   bool
+		reason string
+	}{
+		{
+			name:   "gmail dot trick - blocked even if gmail.com in whitelist",
+			rc:     rcWithGmail,
+			email:  "s.m.s.n.fsmbt.d.ndny@gmail.com",
+			want:   false,
+			reason: "gmail 泛域名（含点号）应拒绝",
+		},
+		{
+			name:   "gmail plus alias - blocked",
+			rc:     rcWithGmail,
+			email:  "user+tag@gmail.com",
+			want:   false,
+			reason: "gmail +别名应拒绝",
+		},
+		{
+			name:   "clean gmail - allowed",
+			rc:     rcWithGmail,
+			email:  "normaluser@gmail.com",
+			want:   true,
+			reason: "干净的 gmail 应放行",
+		},
+		{
+			name:   "163 with dot - allowed (non-gmail dot is ok)",
+			rc:     rcWithGmail,
+			email:  "s.m.s.n@163.com",
+			want:   true,
+			reason: "非 gmail 域点号不拦截",
+		},
+		{
+			name:   "163 plus alias - blocked",
+			rc:     rcWithGmail,
+			email:  "user+spam@163.com",
+			want:   false,
+			reason: "所有域名的 +别名都拦截",
+		},
+		{
+			name:   "gmail typo squatting domain - blocked even if accidentally whitelisted",
+			rc:     config.RegisterConfig{EnableTrial: true, EnableTrialEmailWhitelist: true, TrialEmailDomainWhitelist: "gmail.com,gmaial.com"},
+			email:  "1.2.3.4xxx@gmaial.com",
+			want:   false,
+			reason: "易混淆 Gmail 域名不应发放试用",
+		},
+		{
+			name:   "invalid empty local - blocked",
+			rc:     rcWithGmail,
+			email:  "@gmail.com",
+			want:   false,
+			reason: "邮箱 local 为空应拒绝",
+		},
+		{
+			name:   "subdomain spoof - blocked",
+			rc:     rcWithGmail,
+			email:  "user@fake.gmail.com",
+			want:   false,
+			reason: "白名单必须精确匹配域名，不匹配子域",
+		},
+		{
+			name:   "whitelist disabled - gmail dot trick still blocked",
+			rc:     rcNoWhitelist,
+			email:  "s.m.s.n.fsmbt.d.ndny@gmail.com",
+			want:   false,
+			reason: "白名单未启用，但泛域名仍应拒绝",
+		},
+		{
+			name:   "trial disabled - always blocked",
+			rc:     config.RegisterConfig{EnableTrial: false},
+			email:  "user@163.com",
+			want:   false,
+			reason: "试用未开启",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got := ShouldGrantTrialForEmail(tt.rc, tt.email)
+			if got != tt.want {
+				t.Errorf("ShouldGrantTrialForEmail(%q) = %v, want %v | reason: %s",
+					tt.email, got, tt.want, tt.reason)
+			}
+		})
+	}
+}
+
+func TestIsEmailDomainWhitelisted(t *testing.T) {
+	whitelist := "gmail.com,edu.cn,outlook.com"
+	tests := []struct {
+		email string
+		want  bool
+	}{
+		{"user@gmail.com", true},
+		{"user@edu.cn", true},
+		{"User@Gmail.COM", true},
+		{"user@yahoo.com", false},
+		{"user@fake.gmail.com", false}, // subdomain not matched
+		{"user@", false},
+		{"notanemail", false},
+		{"@gmail.com", false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.email, func(t *testing.T) {
+			got := IsEmailDomainWhitelisted(tt.email, whitelist)
+			if got != tt.want {
+				t.Errorf("IsEmailDomainWhitelisted(%q) = %v, want %v", tt.email, got, tt.want)
+			}
+		})
+	}
+}

internal/logic/common/newUserEligibility.go

@@ -76,7 +76,10 @@ func CountScopedSubscribePurchaseOrders(
 	var count int64
 	query := db.WithContext(ctx).
 		Model(&modelOrder.Order{}).
-		Where("user_id IN ? AND subscribe_id = ? AND type IN ? AND amount > 0", scopeUserIDs, subscribeID, []int64{1, 2})
+		Where("user_id IN ? AND type IN ?", scopeUserIDs, []int64{1, 2})
+	if subscribeID > 0 {
+		query = query.Where("subscribe_id = ?", subscribeID)
+	}
 	if len(statuses) > 0 {
 		query = query.Where("status IN ?", statuses)
 	}

internal/logic/common/subscribeModeRoute.go

@@ -52,12 +52,8 @@ func ResolvePurchaseRoute(
 		return decision, nil
 	}
 
-	if requestedSubscribeID != anchorSub.SubscribeId {
-		return nil, ErrSingleModePlanMismatch
-	}
-
 	decision.Route = PurchaseRoutePurchaseToRenewal
-	decision.ResolvedSubscribeID = anchorSub.SubscribeId
+	decision.ResolvedSubscribeID = requestedSubscribeID
 	decision.Anchor = anchorSub
 	return decision, nil
 }

internal/logic/common/subscribeModeRoute_test.go

@@ -0,0 +1,36 @@
+package common
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/perfect-panel/server/internal/model/user"
+	"github.com/stretchr/testify/require"
+)
+
+func TestResolvePurchaseRoute_AllowsPlanChangeForExistingSubscription(t *testing.T) {
+	anchor := &user.Subscribe{
+		Id:          10,
+		UserId:      20,
+		OrderId:     30,
+		SubscribeId: 1,
+		Token:       "existing-token",
+		ExpireTime:  time.Now().Add(time.Hour),
+	}
+
+	decision, err := ResolvePurchaseRoute(
+		context.Background(),
+		true,
+		anchor.UserId,
+		2,
+		func(context.Context, int64) (*user.Subscribe, error) {
+			return anchor, nil
+		},
+	)
+
+	require.NoError(t, err)
+	require.Equal(t, PurchaseRoutePurchaseToRenewal, decision.Route)
+	require.Equal(t, int64(2), decision.ResolvedSubscribeID)
+	require.Equal(t, anchor, decision.Anchor)
+}

internal/logic/public/order/getDiscount.go

@@ -12,6 +12,9 @@ func getDiscount(discounts []types.SubscribeDiscount, inputMonths int64, isNewUs
 		if d.Quantity != inputMonths || d.Discount <= 0 || d.Discount >= 100 {
 			continue
 		}
+		if d.NewUserOnly && !isNewUser {
+			continue
+		}
 		if isNewUser {
 			// lowest discount value = biggest saving
 			if best < 0 || d.Discount < best {
@@ -50,4 +53,3 @@ func isNewUserOnlyForQuantity(discounts []types.SubscribeDiscount, inputQuantity
 	}
 	return hasNewUserOnly && !hasFallback
 }
-

internal/logic/public/order/getDiscount_test.go

@@ -0,0 +1,16 @@
+package order
+
+import (
+	"testing"
+
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/stretchr/testify/require"
+)
+
+func TestGetDiscount_SkipsNewUserOnlyTierForExistingUser(t *testing.T) {
+	discount := getDiscount([]types.SubscribeDiscount{
+		{Quantity: 1, Discount: 90, NewUserOnly: true},
+	}, 1, false)
+
+	require.Equal(t, float64(1), discount)
+}

internal/logic/public/order/newUserDiscountEligibility.go

@@ -47,7 +47,7 @@ func resolveNewUserDiscountEligibility(
 			ctx,
 			db,
 			eligibility.ScopeUserIDs,
-			subscribeID,
+			0,
 			[]int64{2, 5},
 			"",
 		)

internal/logic/public/order/purchaseLogic.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"math"
+	"strings"
 	"time"
 
 	"github.com/google/uuid"
@@ -111,18 +112,21 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
 		}
 	}
 
-	// 非单订阅模式下，若用户已有同套餐订阅（含过期），提前路由为续费，防止创建重复订阅
+	// 全局单订阅口径：若用户已有任意付费订阅（含过期），提前路由为续费/换套餐，
+	// 防止不同套餐购买创建第二条订阅。
 	if !l.svcCtx.Config.Subscribe.SingleModel && orderType == 1 {
 		var existSub user.Subscribe
 		if e := l.svcCtx.DB.WithContext(l.ctx).
 			Model(&user.Subscribe{}).
-			Where("user_id = ? AND subscribe_id = ?", entitlement.EffectiveUserID, targetSubscribeID).
+			Where("user_id = ? AND token != '' AND (order_id > 0 OR token LIKE 'iap:%')", entitlement.EffectiveUserID).
 			Order("expire_time DESC").
+			Order("updated_at DESC").
+			Order("id DESC").
 			First(&existSub).Error; e == nil && existSub.Id > 0 && existSub.Token != "" {
 			orderType = 2
 			parentOrderID = existSub.OrderId
 			subscribeToken = existSub.Token
-			l.Infow("[Purchase] non-single mode purchase routed to renewal (existing subscription found)",
+			l.Infow("[Purchase] purchase routed to renewal/change plan (existing subscription found)",
 				logger.Field("existing_subscribe_id", existSub.Id),
 				logger.Field("existing_status", existSub.Status),
 				logger.Field("user_id", u.Id),
@@ -311,13 +315,13 @@ func (l *PurchaseLogic) Purchase(req *types.PurchaseOrderRequest) (resp *types.P
 		// check subscribe plan quota limit inside transaction to prevent race condition
 		if orderInfo.Type == 1 && sub.Quota > 0 {
 			var currentUserSub []user.Subscribe
-			if e := db.Model(&user.Subscribe{}).Where("user_id = ?", u.Id).Find(&currentUserSub).Error; e != nil {
+			if e := db.Model(&user.Subscribe{}).Where("user_id = ?", entitlement.EffectiveUserID).Find(&currentUserSub).Error; e != nil {
 				l.Errorw("[Purchase] Database query error", logger.Field("error", e.Error()), logger.Field("user_id", u.Id))
 				return e
 			}
 			var count int64
 			for _, v := range currentUserSub {
-				if v.SubscribeId == targetSubscribeID {
+				if v.OrderId > 0 || strings.HasPrefix(v.Token, "iap:") {
 					count++
 				}
 			}

internal/logic/public/order/purchaseNewUserOnly_test.go

@@ -0,0 +1,766 @@
+package order
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/alicebob/miniredis/v2"
+	"github.com/hibiken/asynq"
+	modelOrder "github.com/perfect-panel/server/internal/model/order"
+	"github.com/perfect-panel/server/internal/model/payment"
+	subModel "github.com/perfect-panel/server/internal/model/subscribe"
+	"github.com/perfect-panel/server/internal/model/user"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/constant"
+	"github.com/perfect-panel/server/pkg/xerr"
+	"github.com/redis/go-redis/v9"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+// setupNewUserOnlyDB 创建带必要表的 SQLite 内存数据库
+func setupNewUserOnlyDB(t *testing.T) *gorm.DB {
+	t.Helper()
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	require.NoError(t, err, "failed to open in-memory SQLite")
+	db.Exec("PRAGMA foreign_keys = OFF")
+
+	sqls := []string{
+		`CREATE TABLE IF NOT EXISTS "subscribe" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(255) NOT NULL DEFAULT '',
+			language VARCHAR(255) NOT NULL DEFAULT '',
+			description TEXT,
+			unit_price INTEGER NOT NULL DEFAULT 0,
+			unit_time VARCHAR(255) NOT NULL DEFAULT '',
+			discount TEXT,
+			replacement INTEGER NOT NULL DEFAULT 0,
+			inventory INTEGER NOT NULL DEFAULT -1,
+			traffic INTEGER NOT NULL DEFAULT 0,
+			speed_limit INTEGER NOT NULL DEFAULT 0,
+			device_limit INTEGER NOT NULL DEFAULT 0,
+			quota INTEGER NOT NULL DEFAULT 0,
+			new_user_only TINYINT DEFAULT 0,
+			nodes VARCHAR(255),
+			node_tags VARCHAR(255),
+			show TINYINT NOT NULL DEFAULT 0,
+			sell TINYINT NOT NULL DEFAULT 1,
+			sort INTEGER NOT NULL DEFAULT 0,
+			deduction_ratio INTEGER DEFAULT 0,
+			allow_deduction TINYINT DEFAULT 1,
+			reset_cycle INTEGER DEFAULT 0,
+			renewal_reset TINYINT DEFAULT 0,
+			show_original_price TINYINT NOT NULL DEFAULT 1,
+			created_at DATETIME,
+			updated_at DATETIME
+		)`,
+		`CREATE TABLE IF NOT EXISTS "order" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			parent_id INTEGER DEFAULT NULL,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			subscription_user_id INTEGER NOT NULL DEFAULT 0,
+			order_no VARCHAR(255) NOT NULL DEFAULT '' UNIQUE,
+			type TINYINT NOT NULL DEFAULT 1,
+			quantity INTEGER NOT NULL DEFAULT 1,
+			price INTEGER NOT NULL DEFAULT 0,
+			amount INTEGER NOT NULL DEFAULT 0,
+			gift_amount INTEGER NOT NULL DEFAULT 0,
+			discount INTEGER NOT NULL DEFAULT 0,
+			coupon VARCHAR(255) DEFAULT NULL,
+			coupon_discount INTEGER NOT NULL DEFAULT 0,
+			commission INTEGER NOT NULL DEFAULT 0,
+			payment_id INTEGER NOT NULL DEFAULT 0,
+			method VARCHAR(255) NOT NULL DEFAULT '',
+			fee_amount INTEGER NOT NULL DEFAULT 0,
+			trade_no VARCHAR(255) DEFAULT NULL,
+			app_account_token VARCHAR(255) DEFAULT NULL,
+			status TINYINT NOT NULL DEFAULT 1,
+			subscribe_id INTEGER NOT NULL DEFAULT 0,
+			subscribe_token VARCHAR(255) DEFAULT NULL,
+			is_new TINYINT NOT NULL DEFAULT 0,
+			created_at DATETIME,
+			updated_at DATETIME,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			password VARCHAR(100) NOT NULL DEFAULT '',
+			algo VARCHAR(20) DEFAULT 'default',
+			salt VARCHAR(20) DEFAULT NULL,
+			avatar TEXT,
+			balance INTEGER DEFAULT 0,
+			refer_code VARCHAR(20) DEFAULT '',
+			referer_id INTEGER DEFAULT 0,
+			commission INTEGER DEFAULT 0,
+			referral_percentage INTEGER DEFAULT 0,
+			only_first_purchase TINYINT DEFAULT 1,
+			gift_amount INTEGER DEFAULT 0,
+			enable TINYINT DEFAULT 1,
+			is_admin TINYINT DEFAULT 0,
+			enable_balance_notify TINYINT DEFAULT 0,
+			enable_login_notify TINYINT DEFAULT 0,
+			enable_subscribe_notify TINYINT DEFAULT 0,
+			enable_trade_notify TINYINT DEFAULT 0,
+			rules TEXT,
+			member_status VARCHAR(20) DEFAULT '',
+			created_at DATETIME,
+			updated_at DATETIME,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "payment" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			name VARCHAR(100) NOT NULL DEFAULT '',
+			platform VARCHAR(100) NOT NULL DEFAULT '',
+			icon VARCHAR(255) DEFAULT '',
+			domain VARCHAR(255) DEFAULT '',
+			config TEXT NOT NULL DEFAULT '{}',
+			description TEXT,
+			fee_mode TINYINT NOT NULL DEFAULT 0,
+			fee_percent INTEGER DEFAULT 0,
+			fee_amount INTEGER DEFAULT 0,
+			enable TINYINT NOT NULL DEFAULT 1,
+			token VARCHAR(255) NOT NULL DEFAULT '' UNIQUE
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_subscribe" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			order_id INTEGER NOT NULL DEFAULT 0,
+			subscribe_id INTEGER NOT NULL DEFAULT 0,
+			start_time DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
+			expire_time DATETIME DEFAULT NULL,
+			finished_at DATETIME DEFAULT NULL,
+			traffic INTEGER DEFAULT 0,
+			download INTEGER DEFAULT 0,
+			upload INTEGER DEFAULT 0,
+			token VARCHAR(255) DEFAULT '' UNIQUE,
+			uuid VARCHAR(255) DEFAULT '' UNIQUE,
+			status TINYINT DEFAULT 0,
+			note VARCHAR(500) DEFAULT '',
+			created_at DATETIME,
+			updated_at DATETIME
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_device" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			ip VARCHAR(255) NOT NULL DEFAULT '',
+			user_id INTEGER NOT NULL DEFAULT 0,
+			user_agent TEXT,
+			identifier VARCHAR(255) NOT NULL DEFAULT '' UNIQUE,
+			short_code VARCHAR(255) NOT NULL DEFAULT '',
+			online TINYINT NOT NULL DEFAULT 0,
+			enabled TINYINT NOT NULL DEFAULT 1,
+			created_at DATETIME,
+			updated_at DATETIME
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_family" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			owner_user_id INTEGER NOT NULL DEFAULT 0,
+			max_members INTEGER NOT NULL DEFAULT 2,
+			status TINYINT DEFAULT 0,
+			created_at DATETIME,
+			updated_at DATETIME,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_family_member" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			family_id INTEGER NOT NULL DEFAULT 0,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			role TINYINT DEFAULT 0,
+			status TINYINT DEFAULT 0,
+			join_source VARCHAR(32) NOT NULL DEFAULT '',
+			joined_at DATETIME,
+			left_at DATETIME DEFAULT NULL,
+			created_at DATETIME,
+			updated_at DATETIME,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+	}
+	for _, sql := range sqls {
+		require.NoError(t, db.Exec(sql).Error)
+	}
+	return db
+}
+
+// setupNewUserOnlyRedis 启动 miniredis，返回 redis.Client 和 miniredis 句柄
+func setupNewUserOnlyRedis(t *testing.T) (*redis.Client, *miniredis.Miniredis) {
+	t.Helper()
+	mr, err := miniredis.Run()
+	require.NoError(t, err)
+	t.Cleanup(mr.Close)
+	rds := redis.NewClient(&redis.Options{Addr: mr.Addr()})
+	return rds, mr
+}
+
+// buildNewUserOnlySvcCtx 组装最小 ServiceContext（含 asynq Queue 使用 miniredis）
+func buildNewUserOnlySvcCtx(db *gorm.DB, rds *redis.Client, mr *miniredis.Miniredis) *svc.ServiceContext {
+	queue := asynq.NewClient(asynq.RedisClientOpt{Addr: mr.Addr()})
+	return &svc.ServiceContext{
+		DB:             db,
+		Redis:          rds,
+		UserModel:      user.NewModel(db, rds),
+		OrderModel:     modelOrder.NewModel(db, rds),
+		SubscribeModel: subModel.NewModel(db, rds),
+		PaymentModel:   payment.NewModel(db, rds),
+		Queue:          queue,
+	}
+}
+
+// insertTestSubscribe 直接用 SQL 插入 subscribe 行（绕过 GORM hook 的 MySQL 方言）
+// new_user_only=true 时同时写入 discount JSON，使代码里的 discount 检查生效
+func insertTestSubscribe(t *testing.T, db *gorm.DB, id int64, newUserOnly bool) {
+	t.Helper()
+	nuOnly := 0
+	discount := ""
+	if newUserOnly {
+		nuOnly = 1
+		// discount JSON 包含一个 new_user_only=true 的 tier，匹配 quantity=1
+		discount = `[{"quantity":1,"discount":90,"new_user_only":true}]`
+	}
+	err := db.Exec(`INSERT INTO "subscribe"
+		(id, name, unit_price, inventory, sell, sort, new_user_only, discount, created_at, updated_at)
+		VALUES (?, 'Test Plan', 1000, -1, 1, ?, ?, ?, datetime('now'), datetime('now'))`,
+		id, id, nuOnly, discount).Error
+	require.NoError(t, err)
+}
+
+// insertTestPayment 插入支付方式行
+func insertTestPayment(t *testing.T, db *gorm.DB, id int64) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "payment"
+		(id, name, platform, config, enable, fee_mode, token)
+		VALUES (?, 'Balance', 'balance', '{}', 1, 0, ?)`,
+		id, "test-token").Error
+	require.NoError(t, err)
+}
+
+// insertTestUser 插入用户行，createdAt 可控
+func insertTestUser(t *testing.T, db *gorm.DB, id int64, createdAt time.Time) *user.User {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "user"
+		(id, password, balance, gift_amount, enable, created_at, updated_at)
+		VALUES (?, '', 0, 0, 1, ?, datetime('now'))`,
+		id, createdAt.UTC().Format("2006-01-02 15:04:05")).Error
+	require.NoError(t, err)
+	return &user.User{
+		Id:         id,
+		GiftAmount: 0,
+		CreatedAt:  createdAt,
+	}
+}
+
+func insertTestDevice(t *testing.T, db *gorm.DB, userID int64, identifier string, createdAt time.Time) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "user_device"
+		(user_id, ip, user_agent, identifier, short_code, online, enabled, created_at, updated_at)
+		VALUES (?, '127.0.0.1', 'test-agent', ?, '', 0, 1, ?, datetime('now'))`,
+		userID,
+		identifier,
+		createdAt.UTC().Format("2006-01-02 15:04:05"),
+	).Error
+	require.NoError(t, err)
+}
+
+func insertTestFamily(t *testing.T, db *gorm.DB, familyID, ownerUserID int64) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "user_family"
+		(id, owner_user_id, max_members, status, created_at, updated_at)
+		VALUES (?, ?, 3, 1, datetime('now'), datetime('now'))`,
+		familyID,
+		ownerUserID,
+	).Error
+	require.NoError(t, err)
+}
+
+func insertTestFamilyMember(t *testing.T, db *gorm.DB, familyID, userID int64, role, status uint8, joinSource string) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "user_family_member"
+		(family_id, user_id, role, status, join_source, joined_at, created_at, updated_at)
+		VALUES (?, ?, ?, ?, ?, datetime('now'), datetime('now'), datetime('now'))`,
+		familyID,
+		userID,
+		role,
+		status,
+		joinSource,
+	).Error
+	require.NoError(t, err)
+}
+
+// insertTestOrder 插入一条历史订单（status=2 表示已支付）
+func insertTestOrder(t *testing.T, db *gorm.DB, userID, subscribeID int64, status uint8) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "order"
+		(user_id, order_no, type, status, subscribe_id, created_at, updated_at)
+		VALUES (?, ?, 1, ?, ?, datetime('now'), datetime('now'))`,
+		userID, "existing-order-no", status, subscribeID).Error
+	require.NoError(t, err)
+}
+
+func insertScopedTestOrder(t *testing.T, db *gorm.DB, orderNo string, userID, subscribeID int64, status uint8) {
+	t.Helper()
+	err := db.Exec(`INSERT INTO "order"
+		(user_id, order_no, type, status, subscribe_id, created_at, updated_at)
+		VALUES (?, ?, 1, ?, ?, datetime('now'), datetime('now'))`,
+		userID, orderNo, status, subscribeID).Error
+	require.NoError(t, err)
+}
+
+// buildPurchaseCtx 把 user 放入 context（模拟中间件行为）
+func buildPurchaseCtx(u *user.User) context.Context {
+	return context.WithValue(context.Background(), constant.CtxKeyUser, u)
+}
+
+// TestPurchase_NewUserOnly_UserTooOld 验证：new_user_only=true，用户注册超过 24h → 返回 SubscribeNewUserOnly
+func TestPurchase_NewUserOnly_UserTooOld(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(1)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, true) // new_user_only = true
+	insertTestPayment(t, db, payID)
+
+	// 用户注册 48 小时前 → 超出 24h 限制
+	u := insertTestUser(t, db, 100, time.Now().Add(-48*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	_, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.Error(t, err)
+	var errCode *xerr.CodeError
+	require.ErrorAs(t, err, &errCode)
+	assert.Equal(t, xerr.SubscribeNewUserOnly, errCode.GetErrCode(),
+		"注册超过24h应返回 SubscribeNewUserOnly 错误码")
+
+	// 验证订单未被创建
+	var count int64
+	db.Model(&modelOrder.Order{}).Where("user_id = ?", u.Id).Count(&count)
+	assert.Equal(t, int64(0), count, "用户注册超时，订单不应被创建")
+}
+
+// TestPurchase_NewUserOnly_AlreadyPurchased 验证：new_user_only=true，用户是新用户但已购买过
+// → 允许下单（不拦截），但不享受新人折扣
+func TestPurchase_NewUserOnly_AlreadyPurchased(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(2)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	// 用户刚注册（2h前）→ 满足时间条件
+	u := insertTestUser(t, db, 200, time.Now().Add(-2*time.Hour))
+
+	// 但已有一条 status=2 的历史订单（已支付）
+	insertTestOrder(t, db, u.Id, subID, 2)
+
+	ctx := buildPurchaseCtx(u)
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	// 不应被拦截，允许下单
+	require.NoError(t, err, "24h内已购用户应允许继续下单，不应返回错误")
+	require.NotNil(t, resp)
+	assert.NotEmpty(t, resp.OrderNo)
+
+	// 历史订单 +1（新增了一条）
+	var count int64
+	db.Model(&modelOrder.Order{}).Where("user_id = ?", u.Id).Count(&count)
+	assert.Equal(t, int64(2), count, "应新增一条订单")
+
+	// 新订单无折扣：Amount=Price=1000
+	var newOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", resp.OrderNo).First(&newOrder).Error)
+	assert.Equal(t, int64(1000), newOrder.Amount, "已购用户不享受新人折扣，Amount 应等于 Price")
+	assert.Equal(t, int64(0), newOrder.Discount, "Discount 应为 0")
+}
+
+// TestPurchase_NewUserOnly_Success 验证：new_user_only=true，新用户首次购买 → 成功创建订单
+func TestPurchase_NewUserOnly_Success(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(3)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	// 用户 1 小时前注册（新用户），且没有历史订单
+	u := insertTestUser(t, db, 300, time.Now().Add(-1*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	assert.NotEmpty(t, resp.OrderNo, "新用户首次购买应成功，返回订单号")
+
+	// 验证订单已写入数据库
+	var o modelOrder.Order
+	err = db.Where("order_no = ?", resp.OrderNo).First(&o).Error
+	require.NoError(t, err)
+	assert.Equal(t, u.Id, o.UserId)
+	assert.Equal(t, subID, o.SubscribeId)
+}
+
+// TestPurchase_NewUserOnly_Disabled 验证：new_user_only=false 时，老用户也能正常购买
+func TestPurchase_NewUserOnly_Disabled(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(4)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, false) // new_user_only = false
+	insertTestPayment(t, db, payID)
+
+	// 注册 30 天的老用户
+	u := insertTestUser(t, db, 400, time.Now().Add(-30*24*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	assert.NotEmpty(t, resp.OrderNo, "new_user_only=false时老用户应能正常购买")
+}
+
+// TestPurchase_SingleMode_PendingOldOrderCancelled 验证：单订阅模式下，已有 pending 订单时
+// 第二次下单应关闭旧单并创建新单（而非复用旧单）
+func TestPurchase_SingleMode_PendingOldOrderCancelled(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+	svcCtx.Config.Subscribe.SingleModel = true
+
+	const subID = int64(5)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, false)
+	insertTestPayment(t, db, payID)
+
+	u := insertTestUser(t, db, 500, time.Now().Add(-1*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	// 第一次下单（pending）
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp1, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+	require.NoError(t, err)
+	require.NotNil(t, resp1)
+	firstOrderNo := resp1.OrderNo
+	assert.NotEmpty(t, firstOrderNo)
+
+	// 确认第一单 pending
+	var firstOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", firstOrderNo).First(&firstOrder).Error)
+	assert.Equal(t, uint8(1), firstOrder.Status, "第一单应为 pending")
+
+	// 第二次下单（不同 quantity）
+	logic2 := NewPurchaseLogic(ctx, svcCtx)
+	resp2, err := logic2.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    3,
+	})
+	require.NoError(t, err)
+	require.NotNil(t, resp2)
+	secondOrderNo := resp2.OrderNo
+
+	// 新单与旧单不同
+	assert.NotEqual(t, firstOrderNo, secondOrderNo, "第二次下单应创建新订单，不复用旧单")
+
+	// 旧单应被关闭（status=3）
+	var closedOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", firstOrderNo).First(&closedOrder).Error)
+	assert.Equal(t, uint8(3), closedOrder.Status, "旧 pending 单应被关闭")
+
+	// 新单的 quantity 应为 3
+	var newOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", secondOrderNo).First(&newOrder).Error)
+	assert.Equal(t, int64(3), newOrder.Quantity, "新单 quantity 应为 3")
+	assert.Equal(t, uint8(1), newOrder.Status, "新单应为 pending 状态")
+}
+
+// TestPurchase_SingleMode_NoPendingOrder 验证：单订阅模式下，没有旧 pending 单时正常创建
+func TestPurchase_SingleMode_NoPendingOrder(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+	svcCtx.Config.Subscribe.SingleModel = true
+
+	const subID = int64(6)
+	const payID = int64(1)
+
+	insertTestSubscribe(t, db, subID, false)
+	insertTestPayment(t, db, payID)
+
+	u := insertTestUser(t, db, 600, time.Now().Add(-1*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    2,
+	})
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	assert.NotEmpty(t, resp.OrderNo, "无旧 pending 单时应正常创建新单")
+
+	var o modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", resp.OrderNo).First(&o).Error)
+	assert.Equal(t, int64(2), o.Quantity)
+	assert.Equal(t, uint8(1), o.Status)
+}
+
+// TestPurchase_NewUserOnly_AlreadyPurchased_NoBlock 验证：new_user_only=true 套餐，
+// 24小时内但已购买过 → 允许下单，但不享受新人折扣（Discount=0，Amount=Price）
+func TestPurchase_NewUserOnly_AlreadyPurchased_NoBlock(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(7)
+	const payID = int64(1)
+
+	// 套餐：unit_price=1000，discount=[{quantity:1,discount:80,new_user_only:true}]
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	// 用户 1 小时前注册（新用户），但已有一条成功订单（status=2）
+	u := insertTestUser(t, db, 700, time.Now().Add(-1*time.Hour))
+	insertTestOrder(t, db, u.Id, subID, 2)
+
+	ctx := buildPurchaseCtx(u)
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	// 不应被拦截
+	require.NoError(t, err, "24h内已购用户不应被拦截，应允许下单")
+	require.NotNil(t, resp)
+	assert.NotEmpty(t, resp.OrderNo)
+
+	// 验证订单金额：无折扣，Amount=Price=1000，Discount=0
+	var newOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", resp.OrderNo).First(&newOrder).Error)
+	assert.Equal(t, int64(1000), newOrder.Price, "Price 应为原价 1000")
+	assert.Equal(t, int64(1000), newOrder.Amount, "已购用户不享受新人折扣，Amount 应等于 Price")
+	assert.Equal(t, int64(0), newOrder.Discount, "Discount 应为 0")
+}
+
+// TestPurchase_NewUserOnly_FirstPurchase_HasDiscount 验证：new_user_only=true 套餐，
+// 24小时内首次购买 → 允许下单且享受新人折扣
+func TestPurchase_NewUserOnly_FirstPurchase_HasDiscount(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const subID = int64(8)
+	const payID = int64(1)
+
+	// 套餐：unit_price=1000，discount=[{quantity:1,discount:80,new_user_only:true}]（8折）
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	// 用户 1 小时前注册，无历史订单
+	u := insertTestUser(t, db, 800, time.Now().Add(-1*time.Hour))
+	ctx := buildPurchaseCtx(u)
+
+	logic := NewPurchaseLogic(ctx, svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+
+	var newOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", resp.OrderNo).First(&newOrder).Error)
+	assert.Equal(t, int64(1000), newOrder.Price, "Price 应为原价 1000")
+	assert.Equal(t, int64(900), newOrder.Amount, "首次购买应享受9折，Amount=900")
+	assert.Equal(t, int64(100), newOrder.Discount, "折扣金额应为 100")
+}
+
+func TestPurchase_NewUserOnly_BindEmailScopeUsesEarliestDeviceTime(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const (
+		subID        = int64(9)
+		payID        = int64(1)
+		ownerUserID  = int64(901)
+		memberUserID = int64(902)
+		familyID     = int64(99)
+	)
+
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	owner := insertTestUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertTestUser(t, db, memberUserID, time.Now().Add(-72*time.Hour))
+	insertTestDevice(t, db, memberUserID, "device-eligibility-old", time.Now().Add(-72*time.Hour))
+	insertTestFamily(t, db, familyID, ownerUserID)
+	insertTestFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertTestFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "bind_email_with_verification")
+
+	logic := NewPurchaseLogic(buildPurchaseCtx(owner), svcCtx)
+	_, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.Error(t, err)
+	var errCode *xerr.CodeError
+	require.ErrorAs(t, err, &errCode)
+	assert.Equal(t, xerr.SubscribeNewUserOnly, errCode.GetErrCode())
+}
+
+func TestPurchase_NewUserOnly_BindEmailScopeSharesHistory(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const (
+		subID        = int64(10)
+		payID        = int64(1)
+		ownerUserID  = int64(1001)
+		memberUserID = int64(1002)
+		familyID     = int64(109)
+	)
+
+	insertTestSubscribe(t, db, subID, true)
+	insertTestPayment(t, db, payID)
+
+	owner := insertTestUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertTestUser(t, db, memberUserID, time.Now().Add(-2*time.Hour))
+	insertTestDevice(t, db, memberUserID, "device-eligibility-shared", time.Now().Add(-2*time.Hour))
+	insertTestFamily(t, db, familyID, ownerUserID)
+	insertTestFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertTestFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "bind_email_with_verification")
+	insertScopedTestOrder(t, db, "existing-scope-order", memberUserID, subID, 2)
+
+	logic := NewPurchaseLogic(buildPurchaseCtx(owner), svcCtx)
+	resp, err := logic.Purchase(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Payment:     payID,
+		Quantity:    1,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+
+	var newOrder modelOrder.Order
+	require.NoError(t, db.Where("order_no = ?", resp.OrderNo).First(&newOrder).Error)
+	assert.Equal(t, int64(1000), newOrder.Amount)
+	assert.Equal(t, int64(0), newOrder.Discount)
+}
+
+func TestPreCreateOrder_NewUserOnly_BindEmailScopeUsesEarliestDeviceTime(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const (
+		subID        = int64(11)
+		ownerUserID  = int64(1101)
+		memberUserID = int64(1102)
+		familyID     = int64(119)
+	)
+
+	insertTestSubscribe(t, db, subID, true)
+
+	owner := insertTestUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertTestUser(t, db, memberUserID, time.Now().Add(-96*time.Hour))
+	insertTestDevice(t, db, memberUserID, "device-precreate-old", time.Now().Add(-96*time.Hour))
+	insertTestFamily(t, db, familyID, ownerUserID)
+	insertTestFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertTestFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "bind_email_with_verification")
+
+	logic := NewPreCreateOrderLogic(buildPurchaseCtx(owner), svcCtx)
+	_, err := logic.PreCreateOrder(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Quantity:    1,
+	})
+
+	require.Error(t, err)
+	var errCode *xerr.CodeError
+	require.ErrorAs(t, err, &errCode)
+	assert.Equal(t, xerr.SubscribeNewUserOnly, errCode.GetErrCode())
+}
+
+func TestPreCreateOrder_NewUserOnly_OrdinaryFamilyMemberDoesNotAffectEligibility(t *testing.T) {
+	db := setupNewUserOnlyDB(t)
+	rds, mr := setupNewUserOnlyRedis(t)
+	svcCtx := buildNewUserOnlySvcCtx(db, rds, mr)
+
+	const (
+		subID        = int64(12)
+		ownerUserID  = int64(1201)
+		memberUserID = int64(1202)
+		familyID     = int64(129)
+	)
+
+	insertTestSubscribe(t, db, subID, true)
+
+	owner := insertTestUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertTestUser(t, db, memberUserID, time.Now().Add(-96*time.Hour))
+	insertTestDevice(t, db, memberUserID, "device-precreate-ordinary", time.Now().Add(-96*time.Hour))
+	insertTestFamily(t, db, familyID, ownerUserID)
+	insertTestFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertTestFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "manual_invite")
+
+	logic := NewPreCreateOrderLogic(buildPurchaseCtx(owner), svcCtx)
+	resp, err := logic.PreCreateOrder(&types.PurchaseOrderRequest{
+		SubscribeId: subID,
+		Quantity:    1,
+	})
+
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	assert.Equal(t, int64(900), resp.Amount)
+	assert.Equal(t, int64(100), resp.Discount)
+}

queue/logic/order/activateOrderLogic.go

@@ -10,6 +10,7 @@ import (
 	"time"
 
 	"github.com/perfect-panel/server/internal/logic/admin/group"
+	commonLogic "github.com/perfect-panel/server/internal/logic/common"
 	"github.com/perfect-panel/server/internal/model/log"
 	"github.com/perfect-panel/server/pkg/constant"
 	"github.com/perfect-panel/server/pkg/logger"
@@ -44,6 +45,7 @@ const (
 	OrderStatusPaid     = 2 // Order paid and ready for processing
 	OrderStatusClose    = 3 // Order closed/cancelled
 	OrderStatusFailed   = 4 // Order processing failed
+	OrderStatusClaimed  = 4 // Internal transient claim while a worker processes the order
 	OrderStatusFinished = 5 // Order successfully completed
 )
 
@@ -82,7 +84,7 @@ func (l *ActivateOrderLogic) ProcessTask(ctx context.Context, task *asynq.Task)
 	logger.WithContext(ctx).Info("[ActivateOrderLogic] 正在验证订单",
 		logger.Field("order_no", payload.OrderNo))
 
-	orderInfo, err := l.validateAndGetOrder(ctx, payload.OrderNo)
+	orderInfo, err := l.claimAndGetOrder(ctx, payload.OrderNo)
 	if err != nil {
 		// 如果订单不存在或状态不对，不重试
 		if errors.Is(err, ErrInvalidOrderStatus) {
@@ -108,6 +110,7 @@ func (l *ActivateOrderLogic) ProcessTask(ctx context.Context, task *asynq.Task)
 		logger.Field("user_id", orderInfo.UserId))
 
 	if err = l.processOrderByType(ctx, orderInfo, payload.IAPExpireAt); err != nil {
+		l.releaseClaim(ctx, orderInfo.OrderNo)
 		logger.WithContext(ctx).Error("[ActivateOrderLogic] 处理订单失败，将重试",
 			logger.Field("order_no", orderInfo.OrderNo),
 			logger.Field("order_type", orderInfo.Type),
@@ -137,10 +140,11 @@ func (l *ActivateOrderLogic) parsePayload(ctx context.Context, payload []byte) (
 	return &p, nil
 }
 
-// validateAndGetOrder retrieves an order by order number and validates its status
+// claimAndGetOrder retrieves an order by order number and atomically claims paid orders.
 // Returns error if order is not found or not in paid status
-func (l *ActivateOrderLogic) validateAndGetOrder(ctx context.Context, orderNo string) (*order.Order, error) {
-	orderInfo, err := l.svc.OrderModel.FindOneByOrderNo(ctx, orderNo)
+func (l *ActivateOrderLogic) claimAndGetOrder(ctx context.Context, orderNo string) (*order.Order, error) {
+	var orderInfo order.Order
+	err := l.svc.DB.WithContext(ctx).Model(&order.Order{}).Where("order_no = ?", orderNo).First(&orderInfo).Error
 	if err != nil {
 		logger.WithContext(ctx).Error("Find order failed",
 			logger.Field("error", err.Error()),
@@ -165,7 +169,33 @@ func (l *ActivateOrderLogic) validateAndGetOrder(ctx context.Context, orderNo st
 		return nil, ErrInvalidOrderStatus
 	}
 
-	return orderInfo, nil
+	result := l.svc.DB.WithContext(ctx).
+		Model(&order.Order{}).
+		Where("order_no = ? AND status = ?", orderNo, OrderStatusPaid).
+		Update("status", OrderStatusClaimed)
+	if result.Error != nil {
+		return nil, result.Error
+	}
+	if result.RowsAffected == 0 {
+		logger.WithContext(ctx).Info("Order already claimed by another worker, skip processing",
+			logger.Field("order_no", orderNo),
+		)
+		return nil, nil
+	}
+	orderInfo.Status = OrderStatusClaimed
+	return &orderInfo, nil
+}
+
+func (l *ActivateOrderLogic) releaseClaim(ctx context.Context, orderNo string) {
+	if err := l.svc.DB.WithContext(ctx).
+		Model(&order.Order{}).
+		Where("order_no = ? AND status = ?", orderNo, OrderStatusClaimed).
+		Update("status", OrderStatusPaid).Error; err != nil {
+		logger.WithContext(ctx).Error("Release order claim failed",
+			logger.Field("error", err.Error()),
+			logger.Field("order_no", orderNo),
+		)
+	}
 }
 
 // processOrderByType routes order processing based on the order type
@@ -274,20 +304,24 @@ func (l *ActivateOrderLogic) NewPurchase(ctx context.Context, orderInfo *order.O
 			)
 		}
 
-		// 如果没有合并已购订阅，再尝试合并赠送订阅（order_id=0）
-		if userSub == nil {
-			giftSub, giftErr := l.findGiftSubscription(ctx, singleModeUserId, orderInfo.SubscribeId)
-			if giftErr == nil && giftSub != nil {
-				// 在赠送订阅上延长时间，保持 token 不变
-				userSub, err = l.extendGiftSubscription(ctx, giftSub, orderInfo, sub)
-				if err != nil {
-					logger.WithContext(ctx).Error("Extend gift subscription failed",
-						logger.Field("error", err.Error()),
-						logger.Field("gift_subscribe_id", giftSub.Id),
-					)
-					// 合并失败时回退到创建新订阅
-					userSub = nil
-				}
+	}
+
+	// 如果没有合并已购订阅，再尝试合并赠送订阅（order_id=0）。
+	// 全局单订阅口径下，非 SingleModel 也不能让试用订阅和付费订阅并存。
+	if userSub == nil {
+		effectiveOwner := orderInfo.UserId
+		if orderInfo.SubscriptionUserId > 0 {
+			effectiveOwner = orderInfo.SubscriptionUserId
+		}
+		giftSub, giftErr := l.findGiftSubscription(ctx, effectiveOwner, orderInfo.SubscribeId)
+		if giftErr == nil && giftSub != nil {
+			userSub, err = l.extendGiftSubscription(ctx, giftSub, orderInfo, sub)
+			if err != nil {
+				logger.WithContext(ctx).Error("Extend gift subscription failed",
+					logger.Field("error", err.Error()),
+					logger.Field("gift_subscribe_id", giftSub.Id),
+				)
+				userSub = nil
 			}
 		}
 	}
@@ -302,8 +336,10 @@ func (l *ActivateOrderLogic) NewPurchase(ctx context.Context, orderInfo *order.O
 		}
 		var existingSub user.Subscribe
 		if findErr := l.svc.DB.Model(&user.Subscribe{}).
-			Where("user_id IN ? AND subscribe_id = ?", candidateUserIds, orderInfo.SubscribeId).
+			Where("user_id IN ? AND token != ''", candidateUserIds).
 			Order("expire_time DESC").
+			Order("updated_at DESC").
+			Order("id DESC").
 			First(&existingSub).Error; findErr == nil {
 			// 家庭组场景：订阅 owner 可能变更（如成员注册的试用 → 被家主收归），
 			// 续期前把 user_id 校正为当前订单的 SubscriptionUserId
@@ -514,7 +550,7 @@ func (l *ActivateOrderLogic) createUserSubscription(ctx context.Context, orderIn
 	// Check quota limit before creating subscription (final safeguard)
 	if sub.Quota > 0 {
 		var count int64
-		if err := l.svc.DB.Model(&user.Subscribe{}).Where("user_id = ? AND subscribe_id = ?", orderInfo.UserId, orderInfo.SubscribeId).Count(&count).Error; err != nil {
+		if err := l.svc.DB.Model(&user.Subscribe{}).Where("user_id = ?", subscriptionUserId).Count(&count).Error; err != nil {
 			logger.WithContext(ctx).Error("Count user subscribe failed", logger.Field("error", err.Error()))
 			return nil, err
 		}
@@ -602,7 +638,7 @@ func (l *ActivateOrderLogic) handleCommission(ctx context.Context, userInfo *use
 	if !l.shouldProcessCommission(userInfo, orderInfo.IsNew) {
 		// 普通用户路径（佣金比例=0）：只有首单才双方赠N天
 		if orderInfo.IsNew {
-			l.grantGiftDaysToBothParties(ctx, userInfo, orderInfo.OrderNo)
+			l.grantGiftDaysToBothParties(ctx, userInfo, orderInfo)
 		}
 		return
 	}
@@ -692,16 +728,18 @@ func (l *ActivateOrderLogic) handleCommission(ctx context.Context, userInfo *use
 
 	// 有佣金路径：邀请人拿佣金，被邀请用户（首单）拿天数
 	if orderInfo.IsNew {
-		_ = l.grantGiftDays(ctx, userInfo, int(l.svc.Config.Invite.GiftDays), orderInfo.OrderNo, "邀请赠送")
+		giftTarget := l.resolveGiftTargetUser(ctx, userInfo, orderInfo.SubscriptionUserId)
+		_ = l.grantGiftDays(ctx, giftTarget, int(l.svc.Config.Invite.GiftDays), orderInfo.OrderNo, "邀请赠送")
 	}
 }
 
-func (l *ActivateOrderLogic) grantGiftDaysToBothParties(ctx context.Context, referee *user.User, orderNo string) {
+func (l *ActivateOrderLogic) grantGiftDaysToBothParties(ctx context.Context, referee *user.User, orderInfo *order.Order) {
 	giftDays := l.svc.Config.Invite.GiftDays
-	if giftDays <= 0 || referee == nil || referee.Id == 0 || referee.RefererId == 0 {
+	if giftDays <= 0 || referee == nil || referee.Id == 0 || referee.RefererId == 0 || orderInfo == nil {
 		return
 	}
-	_ = l.grantGiftDays(ctx, referee, int(giftDays), orderNo, "邀请赠送")
+	refereeTarget := l.resolveGiftTargetUser(ctx, referee, orderInfo.SubscriptionUserId)
+	_ = l.grantGiftDays(ctx, refereeTarget, int(giftDays), orderInfo.OrderNo, "邀请赠送")
 	if referee.RefererId == 0 {
 		return
 	}
@@ -709,7 +747,32 @@ func (l *ActivateOrderLogic) grantGiftDaysToBothParties(ctx context.Context, ref
 	if err != nil || referer == nil {
 		return
 	}
-	_ = l.grantGiftDays(ctx, referer, int(giftDays), orderNo, "邀请赠送")
+	refererTarget := l.resolveGiftTargetUser(ctx, referer, 0)
+	_ = l.grantGiftDays(ctx, refererTarget, int(giftDays), orderInfo.OrderNo, "邀请赠送")
+}
+
+func (l *ActivateOrderLogic) resolveGiftTargetUser(ctx context.Context, source *user.User, forcedOwnerID int64) *user.User {
+	if source == nil || source.Id == 0 {
+		return source
+	}
+	targetID := source.Id
+	if forcedOwnerID > 0 {
+		targetID = forcedOwnerID
+	} else if entitlement, err := commonLogic.ResolveEntitlementUser(ctx, l.svc.DB, source.Id); err == nil && entitlement != nil && entitlement.EffectiveUserID > 0 {
+		targetID = entitlement.EffectiveUserID
+	}
+	if targetID == source.Id {
+		return source
+	}
+	target, err := l.svc.UserModel.FindOne(ctx, targetID)
+	if err != nil || target == nil {
+		logger.WithContext(ctx).Error("Resolve gift target owner failed",
+			logger.Field("source_user_id", source.Id),
+			logger.Field("target_user_id", targetID),
+		)
+		return source
+	}
+	return target
 }
 
 func (l *ActivateOrderLogic) grantGiftDays(ctx context.Context, u *user.User, days int, orderNo string, remark string) error {
@@ -736,7 +799,22 @@ func (l *ActivateOrderLogic) grantGiftDays(ctx context.Context, u *user.User, da
 	activeSubscribe, err := l.svc.UserModel.FindActiveSubscribe(ctx, u.Id)
 	if err != nil {
 		if errors.Is(err, gorm.ErrRecordNotFound) {
-			return nil
+			giftLog := &log.Gift{
+				Type:        log.GiftTypeIncrease,
+				OrderNo:     orderNo,
+				SubscribeId: 0,
+				Amount:      int64(days),
+				Balance:     u.Balance,
+				Remark:      remark + " skipped: no active subscription",
+				Timestamp:   time.Now().UnixMilli(),
+			}
+			content, _ := giftLog.Marshal()
+			return l.svc.LogModel.Insert(ctx, &log.SystemLog{
+				Type:     log.TypeGift.Uint8(),
+				Date:     time.Now().Format("2006-01-02"),
+				ObjectID: u.Id,
+				Content:  string(content),
+			})
 		}
 		return err
 	}

queue/logic/order/activateOrderLogic_invite_test.go

@@ -0,0 +1,436 @@
+package orderLogic
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"testing"
+	"time"
+
+	"github.com/perfect-panel/server/internal/config"
+	userLogic "github.com/perfect-panel/server/internal/logic/public/user"
+	modelLog "github.com/perfect-panel/server/internal/model/log"
+	"github.com/perfect-panel/server/internal/model/order"
+	"github.com/perfect-panel/server/internal/model/user"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/internal/types"
+	"github.com/perfect-panel/server/pkg/constant"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/driver/mysql"
+	"gorm.io/gorm"
+)
+
+// 普通用户 + 首单 → 双方赠N天
+func TestHandleCommission_GrantGiftDaysWhenCommissionDisabled_FirstOrder(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 0,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referee.RefererId = referer.Id
+
+	baseExpire := time.Now().Add(72 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, baseExpire)
+	refererSub := seedActiveSubscribe(t, db, referer.Id, baseExpire)
+
+	logic.handleCommission(context.Background(), referee, &order.Order{
+		OrderNo:   "ORD-GIFT-001",
+		Type:      OrderTypeSubscribe,
+		IsNew:     true, // 首单
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, baseExpire, 2)
+	assertExpireIncreasedByDays(t, db, refererSub.Id, baseExpire, 2)
+
+	var giftCount int64
+	if err := db.Model(&modelLog.SystemLog{}).Where("type = ?", modelLog.TypeGift.Uint8()).Count(&giftCount).Error; err != nil {
+		t.Fatalf("count gift logs failed: %v", err)
+	}
+	if giftCount != 2 {
+		t.Fatalf("expected 2 gift logs, got %d", giftCount)
+	}
+}
+
+// 普通用户 + 非首单 → 不赠送
+func TestHandleCommission_NoGiftDaysWhenCommissionDisabled_NotFirstOrder(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 0,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referee.RefererId = referer.Id
+
+	baseExpire := time.Now().Add(72 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, baseExpire)
+	refererSub := seedActiveSubscribe(t, db, referer.Id, baseExpire)
+
+	logic.handleCommission(context.Background(), referee, &order.Order{
+		OrderNo:   "ORD-GIFT-002",
+		Type:      OrderTypeSubscribe,
+		IsNew:     false, // 非首单
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	// 到期时间不应延长
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, baseExpire, 0)
+	assertExpireIncreasedByDays(t, db, refererSub.Id, baseExpire, 0)
+
+	var giftCount int64
+	if err := db.Model(&modelLog.SystemLog{}).Where("type = ?", modelLog.TypeGift.Uint8()).Count(&giftCount).Error; err != nil {
+		t.Fatalf("count gift logs failed: %v", err)
+	}
+	if giftCount != 0 {
+		t.Fatalf("expected 0 gift logs for non-first order, got %d", giftCount)
+	}
+}
+
+// 渠道 + 首单 → 被邀请人赠N天 + 邀请人获佣金
+func TestHandleCommission_GiftDaysAndCommissionWhenChannelFirstOrder(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 10,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referee.RefererId = referer.Id
+
+	baseExpire := time.Now().Add(96 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, baseExpire)
+
+	logic.handleCommission(context.Background(), referee, &order.Order{
+		OrderNo:   "ORD-COMM-001",
+		Type:      OrderTypeSubscribe,
+		IsNew:     true, // 首单
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	// 被邀请人（首单）应获得赠送天数
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, baseExpire, 2)
+
+	// 邀请人应获得佣金
+	var refererAfter user.User
+	if err := db.First(&refererAfter, referer.Id).Error; err != nil {
+		t.Fatalf("query referer failed: %v", err)
+	}
+	if refererAfter.Commission != 10 {
+		t.Fatalf("expected referer commission=10, got %d", refererAfter.Commission)
+	}
+
+	var giftCount int64
+	if err := db.Model(&modelLog.SystemLog{}).Where("type = ?", modelLog.TypeGift.Uint8()).Count(&giftCount).Error; err != nil {
+		t.Fatalf("count gift logs failed: %v", err)
+	}
+	if giftCount != 1 {
+		t.Fatalf("expected 1 gift log for referee on first order with commission, got %d", giftCount)
+	}
+}
+
+// 渠道 + 非首单 → 只给邀请人佣金，不赠天
+func TestHandleCommission_OnlyCommissionWhenChannelNotFirstOrder(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 10,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referee.RefererId = referer.Id
+
+	baseExpire := time.Now().Add(96 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, baseExpire)
+
+	logic.handleCommission(context.Background(), referee, &order.Order{
+		OrderNo:   "ORD-COMM-002",
+		Type:      OrderTypeSubscribe,
+		IsNew:     false, // 非首单
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	// 被邀请人不应获得赠送天数
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, baseExpire, 0)
+
+	// 邀请人应获得佣金
+	var refererAfter user.User
+	if err := db.First(&refererAfter, referer.Id).Error; err != nil {
+		t.Fatalf("query referer failed: %v", err)
+	}
+	if refererAfter.Commission != 10 {
+		t.Fatalf("expected referer commission=10, got %d", refererAfter.Commission)
+	}
+
+	var giftCount int64
+	if err := db.Model(&modelLog.SystemLog{}).Where("type = ?", modelLog.TypeGift.Uint8()).Count(&giftCount).Error; err != nil {
+		t.Fatalf("count gift logs failed: %v", err)
+	}
+	if giftCount != 0 {
+		t.Fatalf("expected 0 gift logs when channel non-first order, got %d", giftCount)
+	}
+}
+
+func TestHandleCommission_NoGiftDaysWhenNoInviteRelation(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 0,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	// 没有邀请人的独立用户
+	loneUser := seedUser(t, db, 0, false)
+	// RefererId == 0，无邀请关系
+
+	baseExpire := time.Now().Add(72 * time.Hour).Truncate(time.Second)
+	loneSub := seedActiveSubscribe(t, db, loneUser.Id, baseExpire)
+
+	logic.handleCommission(context.Background(), loneUser, &order.Order{
+		OrderNo:   "ORD-LONE-001",
+		Type:      OrderTypeSubscribe,
+		IsNew:     true,
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	// 订阅到期时间不应该被延长
+	var subAfter user.Subscribe
+	if err := db.First(&subAfter, loneSub.Id).Error; err != nil {
+		t.Fatalf("query subscribe failed: %v", err)
+	}
+	if !subAfter.ExpireTime.Equal(baseExpire) {
+		t.Fatalf("expected no gift days for user without inviter, before=%v after=%v", baseExpire, subAfter.ExpireTime)
+	}
+
+	// 不应产生赠天日志
+	var giftCount int64
+	if err := db.Model(&modelLog.SystemLog{}).Where("type = ?", modelLog.TypeGift.Uint8()).Count(&giftCount).Error; err != nil {
+		t.Fatalf("count gift logs failed: %v", err)
+	}
+	if giftCount != 0 {
+		t.Fatalf("expected 0 gift logs for user without inviter, got %d", giftCount)
+	}
+}
+
+// 先绑码后首单 → 双方赠N天
+func TestInviteFlow_BindThenFirstOrder_GrantGiftDays(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 0,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referer.ReferCode = fmt.Sprintf("REF-%d", referer.Id)
+	if err := db.Model(&user.User{}).Where("id = ?", referer.Id).Update("refer_code", referer.ReferCode).Error; err != nil {
+		t.Fatalf("update referer code failed: %v", err)
+	}
+
+	refereeBaseExpire := time.Now().Add(48 * time.Hour).Truncate(time.Second)
+	refererBaseExpire := time.Now().Add(72 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, refereeBaseExpire)
+	refererSub := seedActiveSubscribe(t, db, referer.Id, refererBaseExpire)
+
+	ctx := context.WithValue(context.Background(), constant.CtxKeyUser, referee)
+	bindLogic := userLogic.NewBindInviteCodeLogic(ctx, logic.svc)
+	if err := bindLogic.BindInviteCode(&types.BindInviteCodeRequest{InviteCode: referer.ReferCode}); err != nil {
+		t.Fatalf("bind invite code failed: %v", err)
+	}
+
+	var refereeAfterBind user.User
+	if err := db.First(&refereeAfterBind, referee.Id).Error; err != nil {
+		t.Fatalf("query referee after bind failed: %v", err)
+	}
+	if refereeAfterBind.RefererId != referer.Id {
+		t.Fatalf("bind invite failed, expected referer_id=%d got=%d", referer.Id, refereeAfterBind.RefererId)
+	}
+
+	// 首单 IsNew=true → 双方赠N天
+	logic.handleCommission(context.Background(), &refereeAfterBind, &order.Order{
+		OrderNo:   "ORD-FLOW-001",
+		Type:      OrderTypeSubscribe,
+		IsNew:     true,
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, refereeBaseExpire, 2)
+	assertExpireIncreasedByDays(t, db, refererSub.Id, refererBaseExpire, 2)
+}
+
+// 先买订单后绑码再续费 → 不赠送（IsNew=false）
+func TestInviteFlow_OrderThenBind_NoGiftDays(t *testing.T) {
+	logic, db, cleanup := setupInviteTestLogic(t, config.InviteConfig{
+		ReferralPercentage: 0,
+		OnlyFirstPurchase:  false,
+		GiftDays:           2,
+	})
+	defer cleanup()
+
+	referee := seedUser(t, db, 0, false)
+	referer := seedUser(t, db, 0, false)
+	referee.RefererId = referer.Id
+
+	baseExpire := time.Now().Add(72 * time.Hour).Truncate(time.Second)
+	refereeSub := seedActiveSubscribe(t, db, referee.Id, baseExpire)
+	refererSub := seedActiveSubscribe(t, db, referer.Id, baseExpire)
+
+	// 先前已有订单，IsNew=false（模拟先买订单后绑码的场景）
+	logic.handleCommission(context.Background(), referee, &order.Order{
+		OrderNo:   "ORD-FLOW-002",
+		Type:      OrderTypeSubscribe,
+		IsNew:     false, // 已有历史订单
+		Amount:    100,
+		FeeAmount: 0,
+		CreatedAt: time.Now(),
+	})
+
+	assertExpireIncreasedByDays(t, db, refereeSub.Id, baseExpire, 0)
+	assertExpireIncreasedByDays(t, db, refererSub.Id, baseExpire, 0)
+}
+
+func setupInviteTestLogic(t *testing.T, inviteCfg config.InviteConfig) (*ActivateOrderLogic, *gorm.DB, func()) {
+	t.Helper()
+
+	mysqlAddr := getenvDefault("TEST_MYSQL_ADDR", "127.0.0.1:3306")
+	mysqlUser := getenvDefault("TEST_MYSQL_USER", "root")
+	mysqlPassword := getenvDefault("TEST_MYSQL_PASSWORD", "rootpassword")
+
+	adminDSN := fmt.Sprintf("%s:%s@tcp(%s)/?charset=utf8mb4&parseTime=true&loc=Local&multiStatements=true", mysqlUser, mysqlPassword, mysqlAddr)
+	adminDB, err := gorm.Open(mysql.Open(adminDSN), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open mysql admin connection failed: %v", err)
+	}
+
+	dbName := fmt.Sprintf("ppanel_test_invite_%d", time.Now().UnixNano())
+	if err := adminDB.Exec(fmt.Sprintf("CREATE DATABASE `%s` CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci", dbName)).Error; err != nil {
+		t.Fatalf("create test database failed: %v", err)
+	}
+
+	testDSN := fmt.Sprintf("%s:%s@tcp(%s)/%s?charset=utf8mb4&parseTime=true&loc=Local", mysqlUser, mysqlPassword, mysqlAddr, dbName)
+	db, err := gorm.Open(mysql.Open(testDSN), &gorm.Config{})
+	if err != nil {
+		t.Fatalf("open test database failed: %v", err)
+	}
+
+	if err := db.AutoMigrate(&user.User{}, &user.Device{}, &user.AuthMethods{}, &user.Subscribe{}, &modelLog.SystemLog{}); err != nil {
+		t.Fatalf("auto migrate failed: %v", err)
+	}
+
+	redisAddr := getenvDefault("TEST_REDIS_ADDR", "127.0.0.1:6379")
+	redisPassword := getenvDefault("TEST_REDIS_PASSWORD", "")
+	rdb := redis.NewClient(&redis.Options{
+		Addr:     redisAddr,
+		Password: redisPassword,
+		DB:       0,
+	})
+	if err := rdb.Ping(context.Background()).Err(); err != nil {
+		t.Fatalf("connect redis failed: %v", err)
+	}
+	_ = rdb.FlushDB(context.Background()).Err()
+
+	svcCtx := &svc.ServiceContext{
+		DB:        db,
+		Redis:     rdb,
+		UserModel: user.NewModel(db, rdb),
+		LogModel:  modelLog.NewModel(db),
+		Config: config.Config{
+			Invite: inviteCfg,
+		},
+	}
+
+	return NewActivateOrderLogic(svcCtx), db, func() {
+		_ = rdb.Close()
+		sqlDB, _ := db.DB()
+		if sqlDB != nil {
+			_ = sqlDB.Close()
+		}
+		_ = adminDB.Exec(fmt.Sprintf("DROP DATABASE IF EXISTS `%s`", dbName)).Error
+	}
+}
+
+func seedUser(t *testing.T, db *gorm.DB, referralPercentage uint8, onlyFirstPurchase bool) *user.User {
+	t.Helper()
+	u := &user.User{
+		Password:              "pwd",
+		Algo:                  "default",
+		ReferralPercentage:    referralPercentage,
+		OnlyFirstPurchase:     boolPtr(onlyFirstPurchase),
+		Enable:                boolPtr(true),
+		IsAdmin:               boolPtr(false),
+		EnableBalanceNotify:   boolPtr(false),
+		EnableLoginNotify:     boolPtr(false),
+		EnableSubscribeNotify: boolPtr(false),
+		EnableTradeNotify:     boolPtr(false),
+	}
+	if err := db.Create(u).Error; err != nil {
+		t.Fatalf("seed user failed: %v", err)
+	}
+	return u
+}
+
+func seedActiveSubscribe(t *testing.T, db *gorm.DB, userID int64, expireAt time.Time) *user.Subscribe {
+	t.Helper()
+	sub := &user.Subscribe{
+		UserId:      userID,
+		OrderId:     1,
+		SubscribeId: 1,
+		StartTime:   time.Now().Add(-24 * time.Hour),
+		ExpireTime:  expireAt,
+		Traffic:     1024,
+		Token:       fmt.Sprintf("token-%d-%d", userID, time.Now().UnixNano()),
+		UUID:        fmt.Sprintf("uuid-%d-%d", userID, time.Now().UnixNano()),
+		Status:      1,
+	}
+	if err := db.Create(sub).Error; err != nil {
+		t.Fatalf("seed subscribe failed: %v", err)
+	}
+	return sub
+}
+
+func assertExpireIncreasedByDays(t *testing.T, db *gorm.DB, subscribeID int64, before time.Time, days int) {
+	t.Helper()
+	var after user.Subscribe
+	if err := db.First(&after, subscribeID).Error; err != nil {
+		t.Fatalf("query subscribe failed: %v", err)
+	}
+	expected := before.Add(time.Duration(days) * 24 * time.Hour)
+	if !after.ExpireTime.Equal(expected) {
+		t.Fatalf("expire time mismatch, expected=%v got=%v", expected, after.ExpireTime)
+	}
+}
+
+func boolPtr(v bool) *bool {
+	return &v
+}
+
+func getenvDefault(key, fallback string) string {
+	v := os.Getenv(key)
+	if v == "" {
+		return fallback
+	}
+	return v
+}

queue/logic/order/activateOrderLogic_newUserEligibility_test.go

@@ -0,0 +1,199 @@
+package orderLogic
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	modelOrder "github.com/perfect-panel/server/internal/model/order"
+	"github.com/perfect-panel/server/internal/model/subscribe"
+	"github.com/perfect-panel/server/internal/model/user"
+	"github.com/stretchr/testify/require"
+	"gorm.io/driver/sqlite"
+	"gorm.io/gorm"
+	"gorm.io/gorm/logger"
+)
+
+func setupActivationEligibilityDB(t *testing.T) *gorm.DB {
+	t.Helper()
+
+	db, err := gorm.Open(sqlite.Open(":memory:"), &gorm.Config{
+		Logger: logger.Default.LogMode(logger.Silent),
+	})
+	require.NoError(t, err)
+
+	sqls := []string{
+		`CREATE TABLE IF NOT EXISTS "user" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			password VARCHAR(100) NOT NULL DEFAULT '',
+			created_at DATETIME,
+			updated_at DATETIME,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_device" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			identifier VARCHAR(255) NOT NULL DEFAULT '' UNIQUE,
+			created_at DATETIME,
+			updated_at DATETIME
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_family" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			owner_user_id INTEGER NOT NULL DEFAULT 0,
+			status TINYINT NOT NULL DEFAULT 1,
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "user_family_member" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			family_id INTEGER NOT NULL DEFAULT 0,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			role TINYINT NOT NULL DEFAULT 0,
+			status TINYINT NOT NULL DEFAULT 0,
+			join_source VARCHAR(32) NOT NULL DEFAULT '',
+			deleted_at DATETIME DEFAULT NULL
+		)`,
+		`CREATE TABLE IF NOT EXISTS "order" (
+			id INTEGER PRIMARY KEY AUTOINCREMENT,
+			user_id INTEGER NOT NULL DEFAULT 0,
+			order_no VARCHAR(255) NOT NULL DEFAULT '' UNIQUE,
+			type TINYINT NOT NULL DEFAULT 1,
+			status TINYINT NOT NULL DEFAULT 1,
+			subscribe_id INTEGER NOT NULL DEFAULT 0,
+			quantity INTEGER NOT NULL DEFAULT 1,
+			created_at DATETIME,
+			updated_at DATETIME
+		)`,
+	}
+	for _, sql := range sqls {
+		require.NoError(t, db.Exec(sql).Error)
+	}
+
+	return db
+}
+
+func insertActivationUser(t *testing.T, db *gorm.DB, userID int64, createdAt time.Time) {
+	t.Helper()
+	require.NoError(t, db.Exec(
+		`INSERT INTO "user" (id, created_at, updated_at) VALUES (?, ?, datetime('now'))`,
+		userID,
+		createdAt.UTC().Format("2006-01-02 15:04:05"),
+	).Error)
+}
+
+func insertActivationDevice(t *testing.T, db *gorm.DB, userID int64, identifier string, createdAt time.Time) {
+	t.Helper()
+	require.NoError(t, db.Exec(
+		`INSERT INTO "user_device" (user_id, identifier, created_at, updated_at) VALUES (?, ?, ?, datetime('now'))`,
+		userID,
+		identifier,
+		createdAt.UTC().Format("2006-01-02 15:04:05"),
+	).Error)
+}
+
+func insertActivationFamily(t *testing.T, db *gorm.DB, familyID, ownerUserID int64) {
+	t.Helper()
+	require.NoError(t, db.Exec(
+		`INSERT INTO "user_family" (id, owner_user_id, status) VALUES (?, ?, 1)`,
+		familyID,
+		ownerUserID,
+	).Error)
+}
+
+func insertActivationFamilyMember(t *testing.T, db *gorm.DB, familyID, userID int64, role, status uint8, joinSource string) {
+	t.Helper()
+	require.NoError(t, db.Exec(
+		`INSERT INTO "user_family_member" (family_id, user_id, role, status, join_source) VALUES (?, ?, ?, ?, ?)`,
+		familyID,
+		userID,
+		role,
+		status,
+		joinSource,
+	).Error)
+}
+
+func insertActivationOrder(t *testing.T, db *gorm.DB, orderNo string, userID, subscribeID int64, status uint8) {
+	t.Helper()
+	require.NoError(t, db.Exec(
+		`INSERT INTO "order" (user_id, order_no, type, status, subscribe_id, quantity, created_at, updated_at)
+		 VALUES (?, ?, 1, ?, ?, 1, datetime('now'), datetime('now'))`,
+		userID,
+		orderNo,
+		status,
+		subscribeID,
+	).Error)
+}
+
+func TestValidateNewUserOnlyEligibilityAtActivation_UsesEarliestBoundDeviceTime(t *testing.T) {
+	db := setupActivationEligibilityDB(t)
+
+	const (
+		ownerUserID  = int64(1)
+		memberUserID = int64(2)
+		familyID     = int64(10)
+		subscribeID  = int64(100)
+	)
+
+	insertActivationUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertActivationUser(t, db, memberUserID, time.Now().Add(-72*time.Hour))
+	insertActivationDevice(t, db, memberUserID, "activation-old-device", time.Now().Add(-72*time.Hour))
+	insertActivationFamily(t, db, familyID, ownerUserID)
+	insertActivationFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertActivationFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "bind_email_with_verification")
+
+	err := validateNewUserOnlyEligibilityAtActivation(
+		context.Background(),
+		db,
+		&modelOrder.Order{
+			UserId:      ownerUserID,
+			OrderNo:     "activation-check-old-device",
+			Type:        OrderTypeSubscribe,
+			Quantity:    1,
+			SubscribeId: subscribeID,
+		},
+		&subscribe.Subscribe{
+			Id:       subscribeID,
+			Discount: `[{"quantity":1,"discount":90,"new_user_only":true}]`,
+		},
+	)
+
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "is not a new user")
+}
+
+func TestValidateNewUserOnlyEligibilityAtActivation_SharesHistoryAcrossBoundScope(t *testing.T) {
+	db := setupActivationEligibilityDB(t)
+
+	const (
+		ownerUserID  = int64(11)
+		memberUserID = int64(12)
+		familyID     = int64(20)
+		subscribeID  = int64(200)
+	)
+
+	insertActivationUser(t, db, ownerUserID, time.Now().Add(-1*time.Hour))
+	insertActivationUser(t, db, memberUserID, time.Now().Add(-2*time.Hour))
+	insertActivationDevice(t, db, memberUserID, "activation-shared-device", time.Now().Add(-2*time.Hour))
+	insertActivationFamily(t, db, familyID, ownerUserID)
+	insertActivationFamilyMember(t, db, familyID, ownerUserID, user.FamilyRoleOwner, user.FamilyMemberActive, "owner_init")
+	insertActivationFamilyMember(t, db, familyID, memberUserID, user.FamilyRoleMember, user.FamilyMemberActive, "bind_email_with_verification")
+	insertActivationOrder(t, db, "previous-finished-order", memberUserID, subscribeID, OrderStatusFinished)
+
+	err := validateNewUserOnlyEligibilityAtActivation(
+		context.Background(),
+		db,
+		&modelOrder.Order{
+			UserId:      ownerUserID,
+			OrderNo:     "current-paid-order",
+			Type:        OrderTypeSubscribe,
+			Quantity:    1,
+			SubscribeId: subscribeID,
+		},
+		&subscribe.Subscribe{
+			Id:       subscribeID,
+			Discount: `[{"quantity":1,"discount":90,"new_user_only":true}]`,
+		},
+	)
+
+	require.Error(t, err)
+	require.Contains(t, err.Error(), "already activated")
+}

queue/logic/order/newUserEligibility.go

@@ -43,7 +43,7 @@ func validateNewUserOnlyEligibilityAtActivation(
 		ctx,
 		db,
 		eligibility.ScopeUserIDs,
-		orderInfo.SubscribeId,
+		0,
 		[]int64{OrderStatusFinished},
 		orderInfo.OrderNo,
 	)
@@ -51,7 +51,7 @@ func validateNewUserOnlyEligibilityAtActivation(
 		return fmt.Errorf("new user only: check history error: %w", err)
 	}
 	if historyCount >= 1 {
-		return fmt.Errorf("new user only: user %d already activated subscribe %d", orderInfo.UserId, orderInfo.SubscribeId)
+		return fmt.Errorf("new user only: user %d already activated an order", orderInfo.UserId)
 	}
 
 	return nil

scripts/diagnose_business_bugs.go

@@ -0,0 +1,197 @@
+package main
+
+import (
+	"database/sql"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+func main() {
+	dsn := flag.String("dsn", os.Getenv("PPANEL_MYSQL_DSN"), "MySQL DSN; defaults to PPANEL_MYSQL_DSN")
+	flag.Parse()
+	if strings.TrimSpace(*dsn) == "" {
+		log.Fatal("missing DSN: pass -dsn or set PPANEL_MYSQL_DSN")
+	}
+
+	db, err := sql.Open("mysql", *dsn)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+	if err = db.Ping(); err != nil {
+		log.Fatal(err)
+	}
+
+	mustPrintRows(db, "db/info", `
+SELECT NOW() AS db_now,
+       (SELECT COUNT(*) FROM user) AS users,
+       (SELECT COUNT(*) FROM user_subscribe) AS user_subscribes,
+       (SELECT COUNT(*) FROM `+"`order`"+`) AS orders`)
+
+	mustPrintRows(db, "bug1/confusable-email-trials", `
+SELECT uam.user_id,
+       uam.auth_identifier,
+       us.id AS user_subscribe_id,
+       us.order_id,
+       us.status,
+       us.expire_time,
+       us.created_at
+FROM user_auth_methods uam
+JOIN user_subscribe us ON us.user_id = uam.user_id
+WHERE uam.auth_type = 'email'
+  AND us.order_id = 0
+  AND (
+    uam.auth_identifier LIKE '%@gmaial.com'
+    OR uam.auth_identifier LIKE '%@gmial.com'
+    OR uam.auth_identifier LIKE '%@gamil.com'
+    OR uam.auth_identifier LIKE '%+%@%'
+    OR uam.auth_identifier REGEXP '^[^@]*\\.[^@]*@gmail\\.com$'
+  )
+ORDER BY us.created_at DESC
+LIMIT 50`)
+
+	mustPrintRows(db, "bug2-visible-duplicate-subscriptions", `
+SELECT scoped.owner_user_id,
+       COUNT(*) AS visible_subscribe_count,
+       GROUP_CONCAT(scoped.user_subscribe_id ORDER BY scoped.expire_time DESC) AS user_subscribe_ids,
+       GROUP_CONCAT(scoped.subscribe_id ORDER BY scoped.expire_time DESC) AS subscribe_ids,
+       MAX(scoped.expire_time) AS max_expire_time
+FROM (
+  SELECT us.id AS user_subscribe_id,
+         us.user_id,
+         COALESCE(uf.owner_user_id, us.user_id) AS owner_user_id,
+         us.subscribe_id,
+         us.status,
+         us.expire_time,
+         us.finished_at
+  FROM user_subscribe us
+  LEFT JOIN user_family_member ufm
+    ON ufm.user_id = us.user_id AND ufm.deleted_at IS NULL AND ufm.status = 1
+  LEFT JOIN user_family uf
+    ON uf.id = ufm.family_id AND uf.deleted_at IS NULL AND uf.status = 1
+  WHERE us.token <> ''
+    AND us.status IN (0,1,2,3,4)
+    AND (us.expire_time > NOW()
+      OR us.finished_at >= DATE_SUB(NOW(), INTERVAL 7 DAY)
+      OR us.expire_time = FROM_UNIXTIME(0))
+) scoped
+GROUP BY scoped.owner_user_id
+HAVING COUNT(*) > 1
+ORDER BY visible_subscribe_count DESC, owner_user_id
+LIMIT 50`)
+
+	mustPrintRows(db, "bug2-order-subscription-owner-mismatch", `
+SELECT us.id AS user_subscribe_id,
+       us.user_id AS subscribe_user_id,
+       o.id AS order_id,
+       o.order_no,
+       o.user_id AS order_user_id,
+       o.subscription_user_id,
+       us.status,
+       us.expire_time,
+       us.created_at AS subscribe_created_at,
+       o.created_at AS order_created_at
+FROM user_subscribe us
+JOIN `+"`order`"+` o ON o.id = us.order_id
+WHERE us.user_id <> o.subscription_user_id
+  AND us.token <> ''
+  AND us.status IN (0,1,2,3,4)
+ORDER BY us.updated_at DESC
+LIMIT 50`)
+
+	mustPrintRows(db, "bug3-invite-first-orders-missing-gift-days", `
+SELECT first_orders.user_id AS referee_id,
+       referee.referer_id,
+       first_orders.id AS order_id,
+       first_orders.order_no,
+       first_orders.amount,
+       first_orders.created_at,
+       referer.referral_percentage AS referer_referral_percentage,
+       (SELECT COUNT(*) FROM system_logs sl
+         WHERE sl.type = 34
+           AND sl.object_id = first_orders.user_id
+           AND sl.content LIKE CONCAT('%', first_orders.order_no, '%')) AS referee_gift_logs,
+       (SELECT COUNT(*) FROM system_logs sl
+         WHERE sl.type = 34
+           AND sl.object_id = referee.referer_id
+           AND sl.content LIKE CONCAT('%', first_orders.order_no, '%')) AS referer_gift_logs
+FROM (
+  SELECT o.*
+  FROM `+"`order`"+` o
+  JOIN (
+    SELECT user_id, MIN(id) AS first_order_id
+    FROM `+"`order`"+`
+    WHERE type IN (1,2)
+      AND status IN (2,5)
+      AND amount > 0
+    GROUP BY user_id
+  ) fo ON fo.first_order_id = o.id
+) first_orders
+JOIN user referee ON referee.id = first_orders.user_id AND referee.referer_id <> 0
+JOIN user referer ON referer.id = referee.referer_id
+WHERE (
+    referer.referral_percentage = 0
+    AND (
+      (SELECT COUNT(*) FROM system_logs sl
+        WHERE sl.type = 34 AND sl.object_id = first_orders.user_id AND sl.content LIKE CONCAT('%', first_orders.order_no, '%')) = 0
+      OR
+      (SELECT COUNT(*) FROM system_logs sl
+        WHERE sl.type = 34 AND sl.object_id = referee.referer_id AND sl.content LIKE CONCAT('%', first_orders.order_no, '%')) = 0
+    )
+  )
+  OR (
+    referer.referral_percentage > 0
+    AND (SELECT COUNT(*) FROM system_logs sl
+      WHERE sl.type = 34 AND sl.object_id = first_orders.user_id AND sl.content LIKE CONCAT('%', first_orders.order_no, '%')) = 0
+  )
+ORDER BY first_orders.created_at DESC
+LIMIT 50`)
+}
+
+func mustPrintRows(db *sql.DB, title string, query string) {
+	fmt.Printf("\n== %s ==\n", title)
+	rows, err := db.Query(query)
+	if err != nil {
+		log.Fatalf("%s: %v", title, err)
+	}
+	defer rows.Close()
+
+	cols, err := rows.Columns()
+	if err != nil {
+		log.Fatalf("%s columns: %v", title, err)
+	}
+	fmt.Println(strings.Join(cols, "\t"))
+
+	values := make([]sql.NullString, len(cols))
+	args := make([]any, len(cols))
+	for i := range values {
+		args[i] = &values[i]
+	}
+	count := 0
+	for rows.Next() {
+		if err := rows.Scan(args...); err != nil {
+			log.Fatalf("%s scan: %v", title, err)
+		}
+		out := make([]string, len(cols))
+		for i, value := range values {
+			if value.Valid {
+				out[i] = value.String
+			} else {
+				out[i] = "NULL"
+			}
+		}
+		fmt.Println(strings.Join(out, "\t"))
+		count++
+	}
+	if err := rows.Err(); err != nil {
+		log.Fatalf("%s rows: %v", title, err)
+	}
+	if count == 0 {
+		fmt.Println("(none)")
+	}
+}

scripts/merge_duplicate_subscriptions.go

@@ -0,0 +1,204 @@
+package main
+
+import (
+	"database/sql"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"log"
+	"os"
+	"strings"
+	"time"
+
+	_ "github.com/go-sql-driver/mysql"
+)
+
+type duplicateGroup struct {
+	OwnerUserID int64 `json:"owner_user_id"`
+	Count       int64 `json:"count"`
+}
+
+type subscriptionRow struct {
+	ID              int64     `json:"id"`
+	UserID          int64     `json:"user_id"`
+	OrderID         int64     `json:"order_id"`
+	SubscribeID     int64     `json:"subscribe_id"`
+	ExpireTime      time.Time `json:"expire_time"`
+	Traffic         int64     `json:"traffic"`
+	Download        int64     `json:"download"`
+	Upload          int64     `json:"upload"`
+	ExpiredDownload int64     `json:"expired_download"`
+	ExpiredUpload   int64     `json:"expired_upload"`
+	Status          uint8     `json:"status"`
+	UpdatedAt       time.Time `json:"updated_at"`
+}
+
+type mergePlan struct {
+	OwnerUserID int64             `json:"owner_user_id"`
+	Keep        subscriptionRow   `json:"keep"`
+	Merge       []subscriptionRow `json:"merge"`
+}
+
+func main() {
+	dsn := flag.String("dsn", os.Getenv("PPANEL_MYSQL_DSN"), "MySQL DSN; defaults to PPANEL_MYSQL_DSN")
+	execute := flag.Bool("execute", false, "apply changes; default is dry-run")
+	flag.Parse()
+
+	if strings.TrimSpace(*dsn) == "" {
+		log.Fatal("missing DSN: pass -dsn or set PPANEL_MYSQL_DSN")
+	}
+
+	db, err := sql.Open("mysql", *dsn)
+	if err != nil {
+		log.Fatal(err)
+	}
+	defer db.Close()
+
+	groups, err := findDuplicateGroups(db)
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	plans := make([]mergePlan, 0, len(groups))
+	for _, group := range groups {
+		plan, err := buildPlan(db, group.OwnerUserID)
+		if err != nil {
+			log.Fatal(err)
+		}
+		if len(plan.Merge) > 0 {
+			plans = append(plans, plan)
+		}
+	}
+
+	enc := json.NewEncoder(os.Stdout)
+	enc.SetIndent("", "  ")
+	if err := enc.Encode(plans); err != nil {
+		log.Fatal(err)
+	}
+
+	if !*execute {
+		fmt.Fprintf(os.Stderr, "dry-run only: %d duplicate owner groups found\n", len(plans))
+		return
+	}
+
+	for _, plan := range plans {
+		if err := applyPlan(db, plan); err != nil {
+			log.Fatal(err)
+		}
+	}
+	fmt.Fprintf(os.Stderr, "merged %d duplicate owner groups\n", len(plans))
+}
+
+func findDuplicateGroups(db *sql.DB) ([]duplicateGroup, error) {
+	rows, err := db.Query(`
+SELECT owner_user_id, COUNT(1) AS cnt
+FROM (
+  SELECT us.id,
+         COALESCE(uf.owner_user_id, us.user_id) AS owner_user_id
+  FROM user_subscribe us
+  LEFT JOIN user_family_member ufm
+    ON ufm.user_id = us.user_id AND ufm.deleted_at IS NULL AND ufm.status = 1
+  LEFT JOIN user_family uf
+    ON uf.id = ufm.family_id AND uf.deleted_at IS NULL AND uf.status = 1
+  WHERE us.token <> ''
+    AND us.status IN (0, 1, 2, 3, 4)
+) scoped
+GROUP BY owner_user_id
+HAVING COUNT(1) > 1
+ORDER BY owner_user_id`)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	var groups []duplicateGroup
+	for rows.Next() {
+		var g duplicateGroup
+		if err := rows.Scan(&g.OwnerUserID, &g.Count); err != nil {
+			return nil, err
+		}
+		groups = append(groups, g)
+	}
+	return groups, rows.Err()
+}
+
+func buildPlan(db *sql.DB, ownerUserID int64) (mergePlan, error) {
+	rows, err := db.Query(`
+SELECT us.id, us.user_id, us.order_id, us.subscribe_id, us.expire_time, us.traffic,
+       us.download, us.upload, us.expired_download, us.expired_upload, us.status, us.updated_at
+FROM user_subscribe us
+LEFT JOIN user_family_member ufm
+  ON ufm.user_id = us.user_id AND ufm.deleted_at IS NULL AND ufm.status = 1
+LEFT JOIN user_family uf
+  ON uf.id = ufm.family_id AND uf.deleted_at IS NULL AND uf.status = 1
+WHERE COALESCE(uf.owner_user_id, us.user_id) = ?
+  AND us.token <> ''
+  AND us.status IN (0, 1, 2, 3, 4)
+ORDER BY us.expire_time DESC, us.updated_at DESC, us.id DESC`, ownerUserID)
+	if err != nil {
+		return mergePlan{}, err
+	}
+	defer rows.Close()
+
+	var all []subscriptionRow
+	for rows.Next() {
+		var r subscriptionRow
+		if err := rows.Scan(&r.ID, &r.UserID, &r.OrderID, &r.SubscribeID, &r.ExpireTime, &r.Traffic, &r.Download, &r.Upload, &r.ExpiredDownload, &r.ExpiredUpload, &r.Status, &r.UpdatedAt); err != nil {
+			return mergePlan{}, err
+		}
+		all = append(all, r)
+	}
+	if err := rows.Err(); err != nil {
+		return mergePlan{}, err
+	}
+	if len(all) == 0 {
+		return mergePlan{OwnerUserID: ownerUserID}, nil
+	}
+
+	keep := all[0]
+	for _, r := range all[1:] {
+		keep.Download += r.Download
+		keep.Upload += r.Upload
+		keep.ExpiredDownload += r.ExpiredDownload
+		keep.ExpiredUpload += r.ExpiredUpload
+		if r.Traffic > keep.Traffic {
+			keep.Traffic = r.Traffic
+		}
+	}
+	for _, r := range all {
+		if r.UpdatedAt.After(keep.UpdatedAt) {
+			keep.SubscribeID = r.SubscribeID
+		}
+	}
+
+	return mergePlan{OwnerUserID: ownerUserID, Keep: keep, Merge: all[1:]}, nil
+}
+
+func applyPlan(db *sql.DB, plan mergePlan) error {
+	tx, err := db.Begin()
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback()
+
+	if _, err = tx.Exec(`
+UPDATE user_subscribe
+SET user_id = ?, subscribe_id = ?, traffic = ?, download = ?, upload = ?,
+    expired_download = ?, expired_upload = ?, status = 1, note = CONCAT(COALESCE(note, ''), ' [merged duplicate subscriptions]')
+WHERE id = ?`,
+		plan.OwnerUserID, plan.Keep.SubscribeID, plan.Keep.Traffic, plan.Keep.Download, plan.Keep.Upload,
+		plan.Keep.ExpiredDownload, plan.Keep.ExpiredUpload, plan.Keep.ID); err != nil {
+		return err
+	}
+
+	for _, r := range plan.Merge {
+		if _, err = tx.Exec(`
+UPDATE user_subscribe
+SET status = 5, note = CONCAT(COALESCE(note, ''), ' [merged into subscription #', ?, ']')
+WHERE id = ?`, plan.Keep.ID, r.ID); err != nil {
+			return err
+		}
+	}
+
+	return tx.Commit()
+}

scripts/replay_business_bugs.go

@@ -0,0 +1,787 @@
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"flag"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/hibiken/asynq"
+	"github.com/perfect-panel/server/internal/config"
+	authlogic "github.com/perfect-panel/server/internal/logic/auth"
+	modelLog "github.com/perfect-panel/server/internal/model/log"
+	modelOrder "github.com/perfect-panel/server/internal/model/order"
+	modelSubscribe "github.com/perfect-panel/server/internal/model/subscribe"
+	modelUser "github.com/perfect-panel/server/internal/model/user"
+	"github.com/perfect-panel/server/internal/svc"
+	"github.com/perfect-panel/server/pkg/conf"
+	"github.com/perfect-panel/server/pkg/orm"
+	"github.com/perfect-panel/server/pkg/uuidx"
+	orderLogic "github.com/perfect-panel/server/queue/logic/order"
+	queueTypes "github.com/perfect-panel/server/queue/types"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/gorm"
+)
+
+const marker = "codex-replay-business-bugs"
+
+func main() {
+	var (
+		configPath    = flag.String("config", "etc/ppanel.yaml", "ppanel config path for test server DB/Redis")
+		dsn           = flag.String("dsn", "", "optional MySQL DSN override: user:pass@tcp(host:3306)/db?charset=utf8mb4&parseTime=true&loc=Asia%2FShanghai")
+		writeDB       = flag.Bool("write-db", false, "create isolated test rows and execute activation replay against the configured test DB")
+		force         = flag.Bool("force", false, "allow -write-db even when the config name does not clearly look like test/dev/staging")
+		keep          = flag.Bool("keep", false, "keep replay rows for manual inspection")
+		cleanupOnly   = flag.Bool("cleanup-only", false, "delete leftover replay rows by marker and exit")
+		skipCodeTests = flag.Bool("skip-code-tests", false, "skip go test checks")
+	)
+	flag.Parse()
+
+	ctx := context.Background()
+	started := time.Now()
+	fmt.Println("== replay business bug tests ==")
+	fmt.Printf("marker: %s\n", marker)
+
+	if !*skipCodeTests {
+		must(runCodeTests())
+	}
+
+	cfg := loadConfig(*configPath, *dsn)
+	runEmailTrialAssertions(cfg)
+
+	if *cleanupOnly {
+		env := mustNewReplayEnv(ctx, cfg)
+		env.cleanupByMarker(ctx)
+		return
+	}
+
+	if !*writeDB {
+		fmt.Println("\nDB replay skipped. Add -write-db to create isolated rows in the TEST database and run activation flows.")
+		fmt.Println("Example:")
+		fmt.Printf("  go run scripts/replay_business_bugs.go -config %s -write-db\n", *configPath)
+		return
+	}
+
+	if looksLikeProduction(cfg) && !*force {
+		fatalf("refusing to write DB because config does not look like a test environment: db=%s host=%s; add -force only on the test server", cfg.MySQL.Dbname, cfg.Site.Host)
+	}
+
+	env := mustNewReplayEnv(ctx, cfg)
+	if !*keep {
+		defer env.cleanup(ctx)
+	}
+
+	must(env.replaySingleSubscription(ctx))
+	must(env.replayInviteRulesMatrix(ctx))
+	must(env.replayFamilyInviteGiftToOwner(ctx))
+
+	fmt.Printf("\nPASS all replay checks in %s\n", time.Since(started).Round(time.Millisecond))
+	if *keep {
+		fmt.Println("Replay rows kept for inspection. Delete rows with remark/name/order_no containing:", marker)
+	}
+}
+
+func runCodeTests() error {
+	fmt.Println("\n-- code-level tests --")
+	args := []string{"test",
+		"./internal/logic/auth",
+		"./internal/logic/common",
+		"./internal/logic/public/order",
+		"./queue/logic/order",
+	}
+	cmd := exec.Command("go", args...)
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	if err := cmd.Run(); err != nil {
+		return fmt.Errorf("go test failed: %w", err)
+	}
+	fmt.Println("PASS code-level tests")
+	return nil
+}
+
+func loadConfig(path, dsn string) config.Config {
+	var cfg config.Config
+	conf.MustLoad(path, &cfg)
+	if dsn != "" {
+		cfg.MySQL = parseDSN(dsn)
+	}
+	return cfg
+}
+
+func parseDSN(dsn string) orm.Config {
+	cfg := orm.ParseDSN(dsn)
+	if cfg == nil {
+		fatalf("invalid dsn")
+	}
+	return *cfg
+}
+
+func runEmailTrialAssertions(cfg config.Config) {
+	fmt.Println("\n-- bug1 email trial whitelist assertions --")
+	cfg.Register.EnableTrial = true
+	cfg.Register.EnableTrialEmailWhitelist = true
+	if cfg.Register.TrialEmailDomainWhitelist == "" {
+		cfg.Register.TrialEmailDomainWhitelist = "gmail.com,163.com"
+	}
+
+	cases := []struct {
+		email string
+		want  bool
+	}{
+		{"1.2.3.4xxx@gmaial.com", false},
+		{"a.b.c@gmail.com", false},
+		{"user+tag@gmail.com", false},
+		{"user@fake.gmail.com", false},
+		{"normaluser@gmail.com", true},
+	}
+	for _, tc := range cases {
+		got := authlogic.ShouldGrantTrialForEmail(cfg.Register, tc.email)
+		if got != tc.want {
+			fatalf("email trial assertion failed: email=%s got=%v want=%v", tc.email, got, tc.want)
+		}
+		fmt.Printf("PASS %-32s grant=%v\n", tc.email, got)
+	}
+}
+
+type replayEnv struct {
+	db     *gorm.DB
+	rds    *redis.Client
+	cfg    config.Config
+	svcCtx *svc.ServiceContext
+	ids    struct {
+		users      []int64
+		subscribes []int64
+		plans      []int64
+		orders     []int64
+		logs       []int64
+	}
+}
+
+func mustNewReplayEnv(ctx context.Context, cfg config.Config) *replayEnv {
+	fmt.Println("\n-- connecting test DB/Redis --")
+	db, err := orm.ConnectMysql(orm.Mysql{Config: cfg.MySQL})
+	must(err)
+	rds := redis.NewClient(&redis.Options{
+		Addr:         cfg.Redis.Host,
+		Password:     cfg.Redis.Pass,
+		DB:           cfg.Redis.DB,
+		PoolSize:     cfg.Redis.PoolSize,
+		MinIdleConns: cfg.Redis.MinIdleConns,
+	})
+	must(rds.Ping(ctx).Err())
+
+	svcCtx := &svc.ServiceContext{
+		DB:             db,
+		Redis:          rds,
+		Config:         cfg,
+		UserModel:      modelUser.NewModel(db, rds),
+		OrderModel:     modelOrder.NewModel(db, rds),
+		SubscribeModel: modelSubscribe.NewModel(db, rds),
+		LogModel:       modelLog.NewModel(db),
+	}
+	fmt.Printf("connected: mysql=%s/%s redis=%s\n", cfg.MySQL.Addr, cfg.MySQL.Dbname, cfg.Redis.Host)
+	return &replayEnv{db: db, rds: rds, cfg: cfg, svcCtx: svcCtx}
+}
+
+func (e *replayEnv) replaySingleSubscription(ctx context.Context) error {
+	fmt.Println("\n-- bug2 replay: paid purchase must reuse existing subscription --")
+	planA, planB, err := e.createPlans(ctx, "bug2")
+	if err != nil {
+		return err
+	}
+	owner, err := e.createUser(ctx, "bug2-owner", 0, 0)
+	if err != nil {
+		return err
+	}
+	existing, err := e.createUserSubscribe(ctx, owner.Id, 0, planA.Id, time.Now().Add(7*24*time.Hour))
+	if err != nil {
+		return err
+	}
+	order, err := e.createPaidOrder(ctx, owner.Id, owner.Id, planB.Id, true, "bug2")
+	if err != nil {
+		return err
+	}
+
+	payload, _ := json.Marshal(queueTypes.ForthwithActivateOrderPayload{OrderNo: order.OrderNo})
+	worker := orderLogic.NewActivateOrderLogic(e.svcCtx)
+	if err = worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload)); err != nil {
+		return err
+	}
+	if err = worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload)); err != nil {
+		return err
+	}
+
+	var rows []modelUser.Subscribe
+	if err = e.db.WithContext(ctx).
+		Where("user_id = ? AND token <> '' AND status IN ?", owner.Id, []int{0, 1, 2, 3, 4}).
+		Order("id ASC").
+		Find(&rows).Error; err != nil {
+		return err
+	}
+	if len(rows) != 1 {
+		return fmt.Errorf("bug2 failed: expected one visible subscription, got %d", len(rows))
+	}
+	if rows[0].Id != existing.Id {
+		return fmt.Errorf("bug2 failed: expected original subscription id=%d to be reused, got id=%d", existing.Id, rows[0].Id)
+	}
+	if rows[0].SubscribeId != planB.Id || rows[0].OrderId != order.Id {
+		return fmt.Errorf("bug2 failed: reused subscription not updated, subscribe_id=%d order_id=%d", rows[0].SubscribeId, rows[0].OrderId)
+	}
+	fmt.Printf("PASS user=%d user_subscribe=%d plan %d -> %d order=%s\n", owner.Id, rows[0].Id, planA.Id, planB.Id, order.OrderNo)
+	return nil
+}
+
+func (e *replayEnv) replayInviteGiftDays(ctx context.Context) error {
+	fmt.Println("\n-- bug3 replay: commission=0 invite should grant gift days to both users --")
+	giftDays := e.cfg.Invite.GiftDays
+	if giftDays <= 0 {
+		giftDays = 2
+		e.svcCtx.Config.Invite.GiftDays = giftDays
+	}
+	e.svcCtx.Config.Invite.ReferralPercentage = 0
+	e.svcCtx.Config.Invite.OnlyFirstPurchase = true
+
+	planA, _, err := e.createPlans(ctx, "bug3")
+	if err != nil {
+		return err
+	}
+	referer, err := e.createUser(ctx, "bug3-referer", 0, 0)
+	if err != nil {
+		return err
+	}
+	referee, err := e.createUser(ctx, "bug3-referee", referer.Id, 0)
+	if err != nil {
+		return err
+	}
+
+	baseExpire := time.Now().Add(10 * 24 * time.Hour).Truncate(time.Millisecond)
+	refererSub, err := e.createUserSubscribe(ctx, referer.Id, 0, planA.Id, baseExpire)
+	if err != nil {
+		return err
+	}
+	refereeSub, err := e.createUserSubscribe(ctx, referee.Id, 0, planA.Id, baseExpire)
+	if err != nil {
+		return err
+	}
+	order, err := e.createPaidOrder(ctx, referee.Id, referee.Id, planA.Id, true, "bug3")
+	if err != nil {
+		return err
+	}
+
+	payload, _ := json.Marshal(queueTypes.ForthwithActivateOrderPayload{OrderNo: order.OrderNo})
+	worker := orderLogic.NewActivateOrderLogic(e.svcCtx)
+	if err = worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload)); err != nil {
+		return err
+	}
+
+	if err = e.waitForGiftLogs(ctx, order.OrderNo, referer.Id, referee.Id); err != nil {
+		return err
+	}
+
+	var refererAfter, refereeAfter modelUser.Subscribe
+	if err = e.db.WithContext(ctx).First(&refererAfter, refererSub.Id).Error; err != nil {
+		return err
+	}
+	if err = e.db.WithContext(ctx).First(&refereeAfter, refereeSub.Id).Error; err != nil {
+		return err
+	}
+	minRefererExpire := baseExpire.Add(time.Duration(giftDays) * 24 * time.Hour)
+	if refererAfter.ExpireTime.Before(minRefererExpire.Add(-time.Second)) {
+		return fmt.Errorf("bug3 failed: referer expire not increased by gift days, got=%s want>=%s", refererAfter.ExpireTime, minRefererExpire)
+	}
+	if !refereeAfter.ExpireTime.After(baseExpire) {
+		return fmt.Errorf("bug3 failed: referee expire did not increase, got=%s base=%s", refereeAfter.ExpireTime, baseExpire)
+	}
+
+	// Idempotency: repeat the same order task and make sure gift logs are still one per user.
+	if err = worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload)); err != nil {
+		return err
+	}
+	var giftCount int64
+	if err = e.db.WithContext(ctx).Model(&modelLog.SystemLog{}).
+		Where("type = ? AND object_id IN ? AND content LIKE ?", modelLog.TypeGift.Uint8(), []int64{referer.Id, referee.Id}, "%"+order.OrderNo+"%").
+		Count(&giftCount).Error; err != nil {
+		return err
+	}
+	if giftCount != 2 {
+		return fmt.Errorf("bug3 failed: expected 2 gift logs after duplicate task, got %d", giftCount)
+	}
+	fmt.Printf("PASS referer=%d referee=%d order=%s gift_days=%d logs=%d\n", referer.Id, referee.Id, order.OrderNo, giftDays, giftCount)
+	return nil
+}
+
+func (e *replayEnv) replayInviteRulesMatrix(ctx context.Context) error {
+	fmt.Println("\n-- bug3 replay matrix: invite gift/commission rules --")
+	giftDays := e.cfg.Invite.GiftDays
+	if giftDays <= 0 {
+		giftDays = 2
+	}
+	e.svcCtx.Config.Invite.GiftDays = giftDays
+	e.svcCtx.Config.Invite.OnlyFirstPurchase = false
+
+	planA, _, err := e.createPlans(ctx, "bug3-matrix")
+	if err != nil {
+		return err
+	}
+
+	cases := []struct {
+		name               string
+		hasReferer         bool
+		globalReferralPct  int64
+		isNewOrder         bool
+		wantGiftLogs       int64
+		wantCommissionLogs int64
+		wantCommission     int64
+	}{
+		{
+			name:         "no invite relation first order no gift",
+			hasReferer:   false,
+			isNewOrder:   true,
+			wantGiftLogs: 0,
+		},
+		{
+			name:         "ordinary invite commission 0 first order gifts both",
+			hasReferer:   true,
+			isNewOrder:   true,
+			wantGiftLogs: 2,
+		},
+		{
+			name:         "ordinary invite commission 0 non-first order no gift",
+			hasReferer:   true,
+			isNewOrder:   false,
+			wantGiftLogs: 0,
+		},
+		{
+			name:               "channel commission positive first order gifts referee only",
+			hasReferer:         true,
+			globalReferralPct:  10,
+			isNewOrder:         true,
+			wantGiftLogs:       1,
+			wantCommissionLogs: 1,
+			wantCommission:     59,
+		},
+		{
+			name:               "channel commission positive non-first order commission only",
+			hasReferer:         true,
+			globalReferralPct:  10,
+			isNewOrder:         false,
+			wantGiftLogs:       0,
+			wantCommissionLogs: 1,
+			wantCommission:     59,
+		},
+	}
+
+	for idx, tc := range cases {
+		e.svcCtx.Config.Invite.ReferralPercentage = tc.globalReferralPct
+		scope := fmt.Sprintf("bug3-rule-%d", idx+1)
+		var referer *modelUser.User
+		if tc.hasReferer {
+			referer, err = e.createUser(ctx, scope+"-referer", 0, 0)
+			if err != nil {
+				return err
+			}
+			if _, err = e.createUserSubscribe(ctx, referer.Id, 0, planA.Id, time.Now().Add(10*24*time.Hour)); err != nil {
+				return err
+			}
+		}
+		var refererID int64
+		if referer != nil {
+			refererID = referer.Id
+		}
+		referee, err := e.createUser(ctx, scope+"-referee", refererID, 0)
+		if err != nil {
+			return err
+		}
+		if _, err = e.createUserSubscribe(ctx, referee.Id, 0, planA.Id, time.Now().Add(10*24*time.Hour)); err != nil {
+			return err
+		}
+		order, err := e.createPaidOrder(ctx, referee.Id, referee.Id, planA.Id, tc.isNewOrder, scope)
+		if err != nil {
+			return err
+		}
+		if err = e.activateOrderTwice(ctx, order.OrderNo); err != nil {
+			return fmt.Errorf("%s: %w", tc.name, err)
+		}
+		if err = e.waitForLogCounts(ctx, order.OrderNo, tc.wantGiftLogs, tc.wantCommissionLogs); err != nil {
+			return fmt.Errorf("%s: %w", tc.name, err)
+		}
+		giftLogs, err := e.countLogs(ctx, modelLog.TypeGift.Uint8(), order.OrderNo)
+		if err != nil {
+			return err
+		}
+		commissionLogs, err := e.countLogs(ctx, modelLog.TypeCommission.Uint8(), order.OrderNo)
+		if err != nil {
+			return err
+		}
+		if giftLogs != tc.wantGiftLogs {
+			return fmt.Errorf("%s: expected gift logs=%d got=%d", tc.name, tc.wantGiftLogs, giftLogs)
+		}
+		if commissionLogs != tc.wantCommissionLogs {
+			return fmt.Errorf("%s: expected commission logs=%d got=%d", tc.name, tc.wantCommissionLogs, commissionLogs)
+		}
+		if referer != nil && tc.wantCommission > 0 {
+			var after modelUser.User
+			if err = e.db.WithContext(ctx).First(&after, referer.Id).Error; err != nil {
+				return err
+			}
+			if after.Commission != tc.wantCommission {
+				return fmt.Errorf("%s: expected referer commission=%d got=%d", tc.name, tc.wantCommission, after.Commission)
+			}
+		}
+		fmt.Printf("PASS %-58s gifts=%d commission_logs=%d\n", tc.name, giftLogs, commissionLogs)
+	}
+	return nil
+}
+
+func (e *replayEnv) replayFamilyInviteGiftToOwner(ctx context.Context) error {
+	fmt.Println("\n-- bug3 family replay: member purchase gift days go to owner --")
+	giftDays := e.cfg.Invite.GiftDays
+	if giftDays <= 0 {
+		giftDays = 2
+	}
+	e.svcCtx.Config.Invite.GiftDays = giftDays
+	e.svcCtx.Config.Invite.ReferralPercentage = 0
+	e.svcCtx.Config.Invite.OnlyFirstPurchase = false
+
+	planA, _, err := e.createPlans(ctx, "bug3-family")
+	if err != nil {
+		return err
+	}
+	referer, err := e.createUser(ctx, "bug3-family-referer", 0, 0)
+	if err != nil {
+		return err
+	}
+	owner, err := e.createUser(ctx, "bug3-family-owner", 0, 0)
+	if err != nil {
+		return err
+	}
+	member, err := e.createUser(ctx, "bug3-family-member", referer.Id, 0)
+	if err != nil {
+		return err
+	}
+	if err = e.createFamily(ctx, owner.Id, member.Id); err != nil {
+		return err
+	}
+
+	baseExpire := time.Now().Add(10 * 24 * time.Hour).Truncate(time.Millisecond)
+	ownerSub, err := e.createUserSubscribe(ctx, owner.Id, 0, planA.Id, baseExpire)
+	if err != nil {
+		return err
+	}
+	memberSub, err := e.createUserSubscribe(ctx, member.Id, 0, planA.Id, baseExpire)
+	if err != nil {
+		return err
+	}
+	refererSub, err := e.createUserSubscribe(ctx, referer.Id, 0, planA.Id, baseExpire)
+	if err != nil {
+		return err
+	}
+
+	order, err := e.createPaidOrder(ctx, member.Id, owner.Id, planA.Id, true, "bug3-family")
+	if err != nil {
+		return err
+	}
+	if err = e.activateOrderTwice(ctx, order.OrderNo); err != nil {
+		return err
+	}
+	if err = e.waitForLogCounts(ctx, order.OrderNo, 2, 0); err != nil {
+		return err
+	}
+
+	var ownerAfter, memberAfter, refererAfter modelUser.Subscribe
+	if err = e.db.WithContext(ctx).First(&ownerAfter, ownerSub.Id).Error; err != nil {
+		return err
+	}
+	if err = e.db.WithContext(ctx).First(&memberAfter, memberSub.Id).Error; err != nil {
+		return err
+	}
+	if err = e.db.WithContext(ctx).First(&refererAfter, refererSub.Id).Error; err != nil {
+		return err
+	}
+	if !ownerAfter.ExpireTime.After(baseExpire) {
+		return fmt.Errorf("family gift failed: owner expire not increased")
+	}
+	if !refererAfter.ExpireTime.After(baseExpire) {
+		return fmt.Errorf("family gift failed: referer expire not increased")
+	}
+	if memberAfter.ExpireTime.After(baseExpire.Add(time.Second)) {
+		return fmt.Errorf("family gift failed: member subscription should not receive gift days")
+	}
+
+	var memberGiftLogs int64
+	if err = e.db.WithContext(ctx).Model(&modelLog.SystemLog{}).
+		Where("type = ? AND object_id = ? AND content LIKE ?", modelLog.TypeGift.Uint8(), member.Id, "%"+order.OrderNo+"%").
+		Count(&memberGiftLogs).Error; err != nil {
+		return err
+	}
+	if memberGiftLogs != 0 {
+		return fmt.Errorf("family gift failed: expected no member gift logs, got %d", memberGiftLogs)
+	}
+	fmt.Printf("PASS family member purchase gift target owner owner=%d member=%d referer=%d gift_days=%d\n", owner.Id, member.Id, referer.Id, giftDays)
+	return nil
+}
+
+func (e *replayEnv) activateOrderTwice(ctx context.Context, orderNo string) error {
+	payload, _ := json.Marshal(queueTypes.ForthwithActivateOrderPayload{OrderNo: orderNo})
+	worker := orderLogic.NewActivateOrderLogic(e.svcCtx)
+	if err := worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload)); err != nil {
+		return err
+	}
+	return worker.ProcessTask(ctx, asynq.NewTask(queueTypes.ForthwithActivateOrder, payload))
+}
+
+func (e *replayEnv) waitForLogCounts(ctx context.Context, orderNo string, wantGiftLogs, wantCommissionLogs int64) error {
+	deadline := time.Now().Add(8 * time.Second)
+	for {
+		giftLogs, err := e.countLogs(ctx, modelLog.TypeGift.Uint8(), orderNo)
+		if err != nil {
+			return err
+		}
+		commissionLogs, err := e.countLogs(ctx, modelLog.TypeCommission.Uint8(), orderNo)
+		if err != nil {
+			return err
+		}
+		if giftLogs >= wantGiftLogs && commissionLogs >= wantCommissionLogs {
+			if wantGiftLogs == 0 && wantCommissionLogs == 0 {
+				time.Sleep(500 * time.Millisecond)
+			}
+			return nil
+		}
+		if time.Now().After(deadline) {
+			return fmt.Errorf("timed out waiting for logs: order=%s gift=%d/%d commission=%d/%d", orderNo, giftLogs, wantGiftLogs, commissionLogs, wantCommissionLogs)
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+}
+
+func (e *replayEnv) countLogs(ctx context.Context, logType uint8, orderNo string) (int64, error) {
+	var count int64
+	err := e.db.WithContext(ctx).Model(&modelLog.SystemLog{}).
+		Where("type = ? AND content LIKE ?", logType, "%"+orderNo+"%").
+		Count(&count).Error
+	return count, err
+}
+
+func (e *replayEnv) waitForGiftLogs(ctx context.Context, orderNo string, userIDs ...int64) error {
+	deadline := time.Now().Add(5 * time.Second)
+	for time.Now().Before(deadline) {
+		var count int64
+		if err := e.db.WithContext(ctx).Model(&modelLog.SystemLog{}).
+			Where("type = ? AND object_id IN ? AND content LIKE ?", modelLog.TypeGift.Uint8(), userIDs, "%"+orderNo+"%").
+			Count(&count).Error; err != nil {
+			return err
+		}
+		if count == int64(len(userIDs)) {
+			return nil
+		}
+		time.Sleep(100 * time.Millisecond)
+	}
+	return fmt.Errorf("timed out waiting for gift logs for order=%s", orderNo)
+}
+
+func (e *replayEnv) createPlans(ctx context.Context, scope string) (*modelSubscribe.Subscribe, *modelSubscribe.Subscribe, error) {
+	a := &modelSubscribe.Subscribe{
+		Name:         marker + "-" + scope + "-A",
+		Language:     "en",
+		UnitPrice:    599,
+		UnitTime:     "Month",
+		Traffic:      1024 * 1024 * 1024,
+		Inventory:    -1,
+		Quota:        0,
+		NodeGroupIds: modelSubscribe.JSONInt64Slice{},
+	}
+	b := &modelSubscribe.Subscribe{
+		Name:         marker + "-" + scope + "-B",
+		Language:     "en",
+		UnitPrice:    699,
+		UnitTime:     "Month",
+		Traffic:      2 * 1024 * 1024 * 1024,
+		Inventory:    -1,
+		Quota:        0,
+		NodeGroupIds: modelSubscribe.JSONInt64Slice{},
+	}
+	if err := e.db.WithContext(ctx).Create(a).Error; err != nil {
+		return nil, nil, err
+	}
+	if err := e.db.WithContext(ctx).Create(b).Error; err != nil {
+		return nil, nil, err
+	}
+	e.ids.plans = append(e.ids.plans, a.Id, b.Id)
+	return a, b, nil
+}
+
+func (e *replayEnv) createUser(ctx context.Context, scope string, refererID int64, referralPercentage uint8) (*modelUser.User, error) {
+	onlyFirst := true
+	enable := true
+	isAdmin := false
+	u := &modelUser.User{
+		Password:              marker,
+		Algo:                  "default",
+		Salt:                  "default",
+		RefererId:             refererID,
+		ReferralPercentage:    referralPercentage,
+		OnlyFirstPurchase:     &onlyFirst,
+		Enable:                &enable,
+		IsAdmin:               &isAdmin,
+		EnableBalanceNotify:   &enable,
+		EnableLoginNotify:     &enable,
+		EnableSubscribeNotify: &enable,
+		EnableTradeNotify:     &enable,
+		Remark:                marker + "-" + scope,
+	}
+	if err := e.db.WithContext(ctx).Create(u).Error; err != nil {
+		return nil, err
+	}
+	u.ReferCode = uuidx.UserInviteCode(u.Id)
+	if err := e.db.WithContext(ctx).Model(&modelUser.User{}).Where("id = ?", u.Id).Update("refer_code", u.ReferCode).Error; err != nil {
+		return nil, err
+	}
+	e.ids.users = append(e.ids.users, u.Id)
+	return u, nil
+}
+
+func (e *replayEnv) createFamily(ctx context.Context, ownerID, memberID int64) error {
+	now := time.Now()
+	family := &modelUser.UserFamily{
+		OwnerUserId: ownerID,
+		MaxMembers:  modelUser.DefaultFamilyMaxSize,
+		Status:      modelUser.FamilyStatusActive,
+	}
+	if err := e.db.WithContext(ctx).Create(family).Error; err != nil {
+		return err
+	}
+	members := []modelUser.UserFamilyMember{
+		{
+			FamilyId:   family.Id,
+			UserId:     ownerID,
+			Role:       modelUser.FamilyRoleOwner,
+			Status:     modelUser.FamilyMemberActive,
+			JoinSource: marker,
+			JoinedAt:   now,
+		},
+		{
+			FamilyId:   family.Id,
+			UserId:     memberID,
+			Role:       modelUser.FamilyRoleMember,
+			Status:     modelUser.FamilyMemberActive,
+			JoinSource: marker,
+			JoinedAt:   now,
+		},
+	}
+	return e.db.WithContext(ctx).Create(&members).Error
+}
+
+func (e *replayEnv) createUserSubscribe(ctx context.Context, userID, orderID, planID int64, expire time.Time) (*modelUser.Subscribe, error) {
+	groupLocked := false
+	sub := &modelUser.Subscribe{
+		UserId:      userID,
+		OrderId:     orderID,
+		SubscribeId: planID,
+		GroupLocked: &groupLocked,
+		StartTime:   time.Now().Add(-time.Hour),
+		ExpireTime:  expire,
+		Traffic:     1024 * 1024 * 1024,
+		Token:       marker + "-" + uuidx.NewUUID().String(),
+		UUID:        uuidx.NewUUID().String(),
+		Status:      1,
+		Note:        marker,
+	}
+	if err := e.db.WithContext(ctx).Create(sub).Error; err != nil {
+		return nil, err
+	}
+	e.ids.subscribes = append(e.ids.subscribes, sub.Id)
+	return sub, nil
+}
+
+func (e *replayEnv) createPaidOrder(ctx context.Context, userID, subscriptionUserID, planID int64, isNew bool, scope string) (*modelOrder.Order, error) {
+	orderNo := fmt.Sprintf("%s-%s-%d", marker, scope, time.Now().UnixNano())
+	order := &modelOrder.Order{
+		UserId:             userID,
+		SubscriptionUserId: subscriptionUserID,
+		OrderNo:            orderNo,
+		Type:               1,
+		Quantity:           1,
+		Price:              599,
+		Amount:             599,
+		Status:             2,
+		SubscribeId:        planID,
+		Method:             "replay",
+		IsNew:              isNew,
+	}
+	if err := e.db.WithContext(ctx).Create(order).Error; err != nil {
+		return nil, err
+	}
+	e.ids.orders = append(e.ids.orders, order.Id)
+	return order, nil
+}
+
+func (e *replayEnv) cleanup(ctx context.Context) {
+	fmt.Println("\n-- cleanup replay rows --")
+	e.cleanupByMarker(ctx)
+	if len(e.ids.subscribes) > 0 {
+		_ = e.db.WithContext(ctx).Where("id IN ?", e.ids.subscribes).Delete(&modelUser.Subscribe{}).Error
+	}
+	if len(e.ids.orders) > 0 {
+		_ = e.db.WithContext(ctx).Where("id IN ?", e.ids.orders).Delete(&modelOrder.Order{}).Error
+	}
+	if len(e.ids.plans) > 0 {
+		_ = e.db.WithContext(ctx).Where("id IN ?", e.ids.plans).Delete(&modelSubscribe.Subscribe{}).Error
+	}
+	if len(e.ids.users) > 0 {
+		_ = e.db.WithContext(ctx).Unscoped().Where("id IN ?", e.ids.users).Delete(&modelUser.User{}).Error
+	}
+	fmt.Println("cleanup done")
+}
+
+func (e *replayEnv) cleanupByMarker(ctx context.Context) {
+	_ = e.db.WithContext(ctx).
+		Where("join_source = ?", marker).
+		Delete(&modelUser.UserFamilyMember{}).Error
+	_ = e.db.WithContext(ctx).
+		Where("owner_user_id IN (SELECT id FROM `user` WHERE remark LIKE ?)", marker+"%").
+		Delete(&modelUser.UserFamily{}).Error
+	_ = e.db.WithContext(ctx).
+		Where("type IN (33, 34) AND content LIKE ?", "%"+marker+"%").
+		Delete(&modelLog.SystemLog{}).Error
+	_ = e.db.WithContext(ctx).
+		Where("order_no LIKE ?", marker+"%").
+		Delete(&modelOrder.Order{}).Error
+	_ = e.db.WithContext(ctx).
+		Where("note = ? OR token LIKE ?", marker, marker+"%").
+		Delete(&modelUser.Subscribe{}).Error
+	_ = e.db.WithContext(ctx).
+		Where("name LIKE ?", marker+"%").
+		Delete(&modelSubscribe.Subscribe{}).Error
+	_ = e.db.WithContext(ctx).Unscoped().
+		Where("remark LIKE ?", marker+"%").
+		Delete(&modelUser.User{}).Error
+}
+
+func looksLikeProduction(cfg config.Config) bool {
+	joined := strings.ToLower(strings.Join([]string{cfg.MySQL.Dbname, cfg.Site.Host, cfg.Host}, " "))
+	if strings.Contains(joined, "prod") || strings.Contains(joined, "production") {
+		return true
+	}
+	if cfg.Debug {
+		return false
+	}
+	if strings.Contains(joined, "test") || strings.Contains(joined, "dev") || strings.Contains(joined, "staging") {
+		return false
+	}
+	return true
+}
+
+func must(err error) {
+	if err != nil {
+		fatalf("%v", err)
+	}
+}
+
+func fatalf(format string, args ...interface{}) {
+	fmt.Fprintf(os.Stderr, "FAIL: "+format+"\n", args...)
+	os.Exit(1)
+}