支持后台支付配置管理

backend/internal/model/payment_merchant_config.go

@@ -0,0 +1,103 @@
+package model
+
+import (
+	"database/sql/driver"
+	"encoding/json"
+	"time"
+)
+
+// PaymentMerchantConfig 支付商户配置
+type PaymentMerchantConfig struct {
+	ID           uint64    `gorm:"primaryKey" json:"id"`
+	Name         string    `gorm:"size:128;not null" json:"name"`
+	Provider     string    `gorm:"size:32;not null;index:idx_payment_merchant_configs_provider" json:"provider"`
+	MerchantID   string    `gorm:"size:128;not null;index:idx_payment_merchant_configs_merchant_id" json:"merchant_id"`
+	GatewayURL   string    `gorm:"size:512;not null;default:''" json:"gateway_url"`
+	SignKey      string    `gorm:"size:512;not null;default:''" json:"sign_key"`   // 加密存储
+	NotifyKey    string    `gorm:"size:512;not null;default:''" json:"notify_key"` // 加密存储
+	NotifyURL    string    `gorm:"size:512;not null;default:''" json:"notify_url"`
+	JumpURL      string    `gorm:"size:512;not null;default:''" json:"jump_url"`
+	PayWay       string    `gorm:"size:32;not null;default:'ZFBZF'" json:"pay_way"`
+	JSPayFlag    string    `gorm:"column:jspay_flag;size:8;not null;default:'2'" json:"jspay_flag"`
+	SignType     string    `gorm:"size:16;not null;default:'MD5'" json:"sign_type"`
+	ExtraConfig  JSONMap   `gorm:"type:json" json:"extra_config"`
+	IsDefault    bool      `gorm:"not null;default:0;index:idx_payment_merchant_configs_default" json:"is_default"`
+	Status       string    `gorm:"size:32;not null;default:'active';index:idx_payment_merchant_configs_status" json:"status"`
+	Environment  string    `gorm:"size:16;not null;default:'production'" json:"environment"`
+	BusinessTags JSONArray `gorm:"type:json" json:"business_tags"`
+
+	// 统计信息
+	TotalTransactions int64      `gorm:"not null;default:0" json:"total_transactions"`
+	TotalAmountCent   int64      `gorm:"not null;default:0" json:"total_amount_cent"`
+	LastUsedAt        *time.Time `json:"last_used_at"`
+
+	// 审计信息
+	CreatedBy *uint64   `json:"created_by"`
+	UpdatedBy *uint64   `json:"updated_by"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+func (PaymentMerchantConfig) TableName() string {
+	return "payment_merchant_configs"
+}
+
+// JSONMap 用于 extra_config 字段
+type JSONMap map[string]any
+
+func (j JSONMap) Value() (driver.Value, error) {
+	if j == nil {
+		return nil, nil
+	}
+	return json.Marshal(j)
+}
+
+func (j *JSONMap) Scan(value any) error {
+	if value == nil {
+		*j = nil
+		return nil
+	}
+	bytes, ok := value.([]byte)
+	if !ok {
+		return nil
+	}
+	return json.Unmarshal(bytes, j)
+}
+
+// JSONArray 用于 business_tags 字段
+type JSONArray []string
+
+func (j JSONArray) Value() (driver.Value, error) {
+	if j == nil {
+		return nil, nil
+	}
+	return json.Marshal(j)
+}
+
+func (j *JSONArray) Scan(value any) error {
+	if value == nil {
+		*j = nil
+		return nil
+	}
+	bytes, ok := value.([]byte)
+	if !ok {
+		return nil
+	}
+	return json.Unmarshal(bytes, j)
+}
+
+// PaymentConfigUsageLog 支付配置使用日志
+type PaymentConfigUsageLog struct {
+	ID             uint64    `gorm:"primaryKey" json:"id"`
+	ConfigID       uint64    `gorm:"not null;index:idx_payment_config_usage_logs_config" json:"config_id"`
+	PaymentOrderID uint64    `gorm:"not null;index:idx_payment_config_usage_logs_payment" json:"payment_order_id"`
+	Provider       string    `gorm:"size:32;not null" json:"provider"`
+	MerchantID     string    `gorm:"size:128;not null" json:"merchant_id"`
+	AmountCent     int64     `gorm:"not null" json:"amount_cent"`
+	BizType        string    `gorm:"size:32;not null" json:"biz_type"`
+	CreatedAt      time.Time `json:"created_at"`
+}
+
+func (PaymentConfigUsageLog) TableName() string {
+	return "payment_config_usage_logs"
+}