init: 1.0.0

internal/model/coupon/default.go

@@ -0,0 +1,135 @@
+package coupon
+
+import (
+	"context"
+	"errors"
+	"fmt"
+
+	"github.com/perfect-panel/ppanel-server/pkg/cache"
+	"github.com/redis/go-redis/v9"
+	"gorm.io/gorm"
+)
+
+var _ Model = (*customCouponModel)(nil)
+var (
+	cacheCouponIdPrefix   = "cache:coupon:id:"
+	cacheCouponCodePrefix = "cache:coupon:code:"
+)
+
+type (
+	Model interface {
+		couponModel
+		customCouponLogicModel
+	}
+	couponModel interface {
+		Insert(ctx context.Context, data *Coupon) error
+		FindOne(ctx context.Context, id int64) (*Coupon, error)
+		FindOneByCode(ctx context.Context, code string) (*Coupon, error)
+		Update(ctx context.Context, data *Coupon) error
+		Delete(ctx context.Context, id int64) error
+		Transaction(ctx context.Context, fn func(db *gorm.DB) error) error
+	}
+
+	customCouponModel struct {
+		*defaultCouponModel
+	}
+	defaultCouponModel struct {
+		cache.CachedConn
+		table string
+	}
+)
+
+func newCouponModel(db *gorm.DB, c *redis.Client) *defaultCouponModel {
+	return &defaultCouponModel{
+		CachedConn: cache.NewConn(db, c),
+		table:      "`coupon`",
+	}
+}
+
+//nolint:unused
+func (m *defaultCouponModel) batchGetCacheKeys(Coupons ...*Coupon) []string {
+	var keys []string
+	for _, coupon := range Coupons {
+		keys = append(keys, m.getCacheKeys(coupon)...)
+	}
+	return keys
+
+}
+func (m *defaultCouponModel) getCacheKeys(data *Coupon) []string {
+	if data == nil {
+		return []string{}
+	}
+	couponIdKey := fmt.Sprintf("%s%v", cacheCouponIdPrefix, data.Id)
+	couponCodeKey := fmt.Sprintf("%s%v", cacheCouponCodePrefix, data.Code)
+	cacheKeys := []string{
+		couponIdKey,
+		couponCodeKey,
+	}
+	return cacheKeys
+}
+
+func (m *defaultCouponModel) Insert(ctx context.Context, data *Coupon) error {
+	err := m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		return conn.Create(&data).Error
+	}, m.getCacheKeys(data)...)
+	return err
+}
+
+func (m *defaultCouponModel) FindOne(ctx context.Context, id int64) (*Coupon, error) {
+	CouponIdKey := fmt.Sprintf("%s%v", cacheCouponIdPrefix, id)
+	var resp Coupon
+	err := m.QueryCtx(ctx, &resp, CouponIdKey, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&Coupon{}).Where("`id` = ?", id).First(&resp).Error
+	})
+	switch {
+	case err == nil:
+		return &resp, nil
+	default:
+		return nil, err
+	}
+}
+
+func (m *defaultCouponModel) FindOneByCode(ctx context.Context, code string) (*Coupon, error) {
+	CouponCodeKey := fmt.Sprintf("%s%v", cacheCouponCodePrefix, code)
+	var resp Coupon
+	err := m.QueryCtx(ctx, &resp, CouponCodeKey, func(conn *gorm.DB, v interface{}) error {
+		return conn.Model(&Coupon{}).Where("`code` = ?", code).First(&resp).Error
+	})
+	switch {
+	case err == nil:
+		return &resp, nil
+	default:
+		return nil, err
+	}
+}
+
+func (m *defaultCouponModel) Update(ctx context.Context, data *Coupon) error {
+	old, err := m.FindOne(ctx, data.Id)
+	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
+		return err
+	}
+	err = m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		db := conn
+		return db.Save(data).Error
+	}, m.getCacheKeys(old)...)
+	return err
+}
+
+func (m *defaultCouponModel) Delete(ctx context.Context, id int64) error {
+	data, err := m.FindOne(ctx, id)
+	if err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil
+		}
+		return err
+	}
+	err = m.ExecCtx(ctx, func(conn *gorm.DB) error {
+		db := conn
+		return db.Delete(&Coupon{}, id).Error
+	}, m.getCacheKeys(data)...)
+	return err
+}
+
+func (m *defaultCouponModel) Transaction(ctx context.Context, fn func(db *gorm.DB) error) error {
+	return m.TransactCtx(ctx, fn)
+}