// manual_claim_test.go — 单元测试三类人工奖 handler 的静态约束：
// - Type / IsAuto / Dispatch 契约
// - ClaimSchema 返回合法 JSON
// - ValidateClaim 正确/错误样本表驱动
package handler

import (
	"context"
	"encoding/json"
	"errors"
	"strings"
	"testing"

	"github.com/perfect-panel/server/internal/model/lottery"
)

// ---- Crypto ---------------------------------------------------------------

func TestCryptoHandler_Contract(t *testing.T) {
	h := NewCryptoHandler()
	if h.Type() != lottery.PrizeTypeCrypto {
		t.Fatalf("Type = %q, want %q", h.Type(), lottery.PrizeTypeCrypto)
	}
	if h.IsAuto() {
		t.Fatal("IsAuto must be false for manual claim handler")
	}
	if _, err := h.Dispatch(context.TODO(), nil, lottery.DispatchRequest{}); !errors.Is(err, lottery.ErrDispatchNotSupported) {
		t.Fatalf("Dispatch on manual handler must return ErrDispatchNotSupported, got %v", err)
	}
	if h.ClaimSchema() == nil {
		t.Fatal("ClaimSchema must not be nil for manual handler")
	}
	var schema map[string]any
	if err := json.Unmarshal(h.ClaimSchema(), &schema); err != nil {
		t.Fatalf("ClaimSchema must be valid JSON: %v", err)
	}
}

func TestCryptoHandler_ValidateClaim(t *testing.T) {
	h := NewCryptoHandler()
	cases := []struct {
		name     string
		body     string
		wantErr  bool
		errIsErr error
	}{
		{"empty", "", true, ErrClaimDataEmpty},
		{"whitespace", "   ", true, ErrClaimDataEmpty},
		{"malformed json", `{"network"`, true, ErrClaimDataMalformed},
		{"missing network", `{"address":"bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"}`, true, ErrClaimDataMalformed},
		{"empty network", `{"network":"","address":"bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"}`, true, ErrClaimDataMalformed},
		{"address too short", `{"network":"BTC","address":"abc"}`, true, ErrClaimDataMalformed},
		{"address bad chars", `{"network":"BTC","address":"bc1$$!!****"}`, true, ErrClaimDataMalformed},
		{"valid BTC", `{"network":"BTC","address":"bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"}`, false, nil},
		{"valid ETH", `{"network":"ETH","address":"0x742d35Cc6634C0532925a3b844Bc9e7595f0bEb1"}`, false, nil},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := h.ValidateClaim([]byte(tc.body))
			if tc.wantErr && err == nil {
				t.Fatal("expected error, got nil")
			}
			if !tc.wantErr && err != nil {
				t.Fatalf("expected nil, got %v", err)
			}
			if tc.errIsErr != nil && !errors.Is(err, tc.errIsErr) {
				t.Fatalf("expected errors.Is %v, got %v", tc.errIsErr, err)
			}
		})
	}
}

func TestValidateCryptoNetwork(t *testing.T) {
	cases := []struct {
		name        string
		body        string
		prizeConfig string
		wantErr     bool
	}{
		{"empty networks in cfg means allow-all", `{"network":"foo","address":"bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"}`, `{"amount":"1","currency":"BTC"}`, false},
		{"network in whitelist", `{"network":"BTC","address":"bc1qxy2kgdygjrsqtzq2n0yrf2493p83kkfjhx0wlh"}`, `{"networks":["BTC","ETH"]}`, false},
		{"network NOT in whitelist", `{"network":"XRP","address":"rXYZQabcdefghijkxxxxxxxx"}`, `{"networks":["BTC","ETH"]}`, true},
		{"empty body", "", `{"networks":["BTC"]}`, true},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := ValidateCryptoNetwork([]byte(tc.body), tc.prizeConfig)
			if tc.wantErr && err == nil {
				t.Fatal("expected error, got nil")
			}
			if !tc.wantErr && err != nil {
				t.Fatalf("expected nil, got %v", err)
			}
		})
	}
}

func TestBuildCryptoClaimSchema_InjectsNetworkEnum(t *testing.T) {
	schema := BuildCryptoClaimSchema(`{"networks":["BTC","TRX"]}`)
	s := string(schema)
	if !strings.Contains(s, `"enum":["BTC","TRX"]`) {
		t.Fatalf("expected schema to include enum with configured networks, got %s", s)
	}
	// 合法 JSON
	var out map[string]any
	if err := json.Unmarshal(schema, &out); err != nil {
		t.Fatalf("built schema not valid JSON: %v", err)
	}
}

func TestBuildCryptoClaimSchema_FallsBackWhenConfigInvalid(t *testing.T) {
	// invalid JSON → fallback to generic schema without enum
	schema := BuildCryptoClaimSchema(`not-json`)
	var out map[string]any
	if err := json.Unmarshal(schema, &out); err != nil {
		t.Fatalf("fallback schema not valid JSON: %v", err)
	}
}

// ---- Physical -------------------------------------------------------------

func TestPhysicalHandler_Contract(t *testing.T) {
	h := NewPhysicalHandler()
	if h.Type() != lottery.PrizeTypePhysical {
		t.Fatalf("Type = %q, want %q", h.Type(), lottery.PrizeTypePhysical)
	}
	if h.IsAuto() {
		t.Fatal("IsAuto must be false")
	}
	if h.ClaimSchema() == nil {
		t.Fatal("ClaimSchema must not be nil")
	}
	if _, err := h.Dispatch(context.TODO(), nil, lottery.DispatchRequest{}); !errors.Is(err, lottery.ErrDispatchNotSupported) {
		t.Fatalf("Dispatch must return ErrDispatchNotSupported, got %v", err)
	}
}

func TestPhysicalHandler_ValidateClaim(t *testing.T) {
	h := NewPhysicalHandler()
	cases := []struct {
		name    string
		body    string
		wantErr bool
	}{
		{"empty", ``, true},
		{"missing name", `{"phone":"13800001234","province":"浙江","city":"杭州","district":"西湖","detail":"文一路"}`, true},
		{"bad phone", `{"name":"张三","phone":"abc","province":"浙江","city":"杭州","district":"西湖","detail":"文一路"}`, true},
		{"missing detail", `{"name":"张三","phone":"13800001234","province":"浙江","city":"杭州","district":"西湖","detail":""}`, true},
		{"valid CN", `{"name":"张三","phone":"13800001234","province":"浙江","city":"杭州","district":"西湖","detail":"文一路 XX 号"}`, false},
		{"valid international", `{"name":"John","phone":"+1 415-555-0100","province":"CA","city":"SF","district":"SoMa","detail":"1 Market St"}`, false},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := h.ValidateClaim([]byte(tc.body))
			if tc.wantErr && err == nil {
				t.Fatal("expected error, got nil")
			}
			if !tc.wantErr && err != nil {
				t.Fatalf("expected nil, got %v", err)
			}
		})
	}
}

// ---- ManualOther ---------------------------------------------------------

func TestManualOtherHandler_Contract(t *testing.T) {
	h := NewManualOtherHandler()
	if h.Type() != lottery.PrizeTypeManualOther {
		t.Fatalf("Type = %q, want %q", h.Type(), lottery.PrizeTypeManualOther)
	}
	if h.IsAuto() {
		t.Fatal("IsAuto must be false")
	}
	if h.ClaimSchema() == nil {
		t.Fatal("ClaimSchema must not be nil")
	}
	if _, err := h.Dispatch(context.TODO(), nil, lottery.DispatchRequest{}); !errors.Is(err, lottery.ErrDispatchNotSupported) {
		t.Fatalf("Dispatch must return ErrDispatchNotSupported, got %v", err)
	}
}

func TestManualOtherHandler_ValidateClaim(t *testing.T) {
	h := NewManualOtherHandler()
	cases := []struct {
		name    string
		body    string
		wantErr bool
	}{
		{"empty", ``, true},
		{"unknown contact_type", `{"contact_type":"fax","contact_value":"1234"}`, true},
		{"missing contact_value", `{"contact_type":"phone","contact_value":""}`, true},
		{"valid phone", `{"contact_type":"phone","contact_value":"+8613800001234","remark":"下午联系"}`, false},
		{"valid email", `{"contact_type":"email","contact_value":"user@example.com"}`, false},
		{"valid tg", `{"contact_type":"tg","contact_value":"@handle"}`, false},
		{"remark too long", `{"contact_type":"email","contact_value":"x@y.z","remark":"` + strings.Repeat("x", 513) + `"}`, true},
	}
	for _, tc := range cases {
		t.Run(tc.name, func(t *testing.T) {
			err := h.ValidateClaim([]byte(tc.body))
			if tc.wantErr && err == nil {
				t.Fatal("expected error, got nil")
			}
			if !tc.wantErr && err != nil {
				t.Fatalf("expected nil, got %v", err)
			}
		})
	}
}

// ---- 状态机常量约束 --------------------------------------------------------

func TestIsClaimStatusResubmittable(t *testing.T) {
	cases := []struct {
		status string
		want   bool
	}{
		{lottery.ClaimStatusPendingClaim, true},
		{lottery.ClaimStatusRejected, true},
		{lottery.ClaimStatusReviewing, false},
		{lottery.ClaimStatusPaying, false},
		{lottery.ClaimStatusPaid, false},
		{lottery.ClaimStatusExpired, false},
		{"", false},
		{"unknown", false},
	}
	for _, tc := range cases {
		if got := lottery.IsClaimStatusResubmittable(tc.status); got != tc.want {
			t.Errorf("IsClaimStatusResubmittable(%q) = %v, want %v", tc.status, got, tc.want)
		}
	}
}

func TestIsPrizeTypeManualClaim(t *testing.T) {
	cases := []struct {
		prizeType string
		want      bool
	}{
		{lottery.PrizeTypeCrypto, true},
		{lottery.PrizeTypePhysical, true},
		{lottery.PrizeTypeManualOther, true},
		{lottery.PrizeTypeVPNDuration, false},
		{lottery.PrizeTypeCommission, false},
		{lottery.PrizeTypeNone, false},
		{"unknown", false},
	}
	for _, tc := range cases {
		if got := lottery.IsPrizeTypeManualClaim(tc.prizeType); got != tc.want {
			t.Errorf("IsPrizeTypeManualClaim(%q) = %v, want %v", tc.prizeType, got, tc.want)
		}
	}
}