package model

import "time"

// PayMethodGroup 支付方式分组（用于服务费配置）
type PayMethodGroup string

const (
	PayMethodGroupScan     PayMethodGroup = "SCAN"     // 扫码支付（微信/支付宝）
	PayMethodGroupTransfer PayMethodGroup = "TRANSFER" // 对公转账
	PayMethodGroupBalance  PayMethodGroup = "BALANCE"  // 余额支付
)

// ServiceFeeConfig 服务费配置
type ServiceFeeConfig struct {
	ID                    uint64         `gorm:"column:id;primaryKey;autoIncrement"`
	AppID                 string         `gorm:"column:app_id;size:32;not null;uniqueIndex:uk_app_method"`
	PayMethodGroup        PayMethodGroup `gorm:"column:pay_method_group;size:20;not null;uniqueIndex:uk_app_method"`
	FeeRate               float64        `gorm:"column:fee_rate;type:decimal(6,4);not null"` // 0.0000 ~ 9.9999%
	FeeReceiverMerchantID string         `gorm:"column:fee_receiver_merchant_id;size:64;not null"`
	Status                int8           `gorm:"column:status;not null;default:1"`
	CreatedAt             time.Time      `gorm:"column:created_at;autoCreateTime:milli"`
	UpdatedAt             time.Time      `gorm:"column:updated_at;autoUpdateTime:milli"`
}

func (ServiceFeeConfig) TableName() string { return "service_fee_config" }

// ServiceFeeLog 服务费流水
type ServiceFeeLog struct {
	ID                   uint64    `gorm:"column:id;primaryKey;autoIncrement"`
	TradeNo              string    `gorm:"column:trade_no;size:32;not null;uniqueIndex:uk_trade_action"`
	ConfigID             uint64    `gorm:"column:config_id;not null"`
	FeeAmount            int64     `gorm:"column:fee_amount;not null"`
	FeeRate              float64   `gorm:"column:fee_rate;type:decimal(6,4);not null"`
	ReceiverMerchantID   string    `gorm:"column:receiver_merchant_id;size:64;not null"`
	Action               string    `gorm:"column:action;size:20;not null;uniqueIndex:uk_trade_action"` // CHARGE / ROLLBACK
	Status               string    `gorm:"column:status;size:20;not null;default:PENDING"`
	ChannelSharingNo     string    `gorm:"column:channel_sharing_no;size:64"`
	CreatedAt            time.Time `gorm:"column:created_at;autoCreateTime:milli"`
	UpdatedAt            time.Time `gorm:"column:updated_at;autoUpdateTime:milli"`
}

func (ServiceFeeLog) TableName() string { return "service_fee_log" }

// PayMethodToGroup 将支付方式映射到服务费分组
func PayMethodToGroup(m PayMethod) PayMethodGroup {
	switch m {
	case PayMethodWechatJSAPI, PayMethodWechatH5, PayMethodWechatNative,
		PayMethodWechatMini, PayMethodAlipay, PayMethodQuickPay:
		return PayMethodGroupScan
	case PayMethodTransfer:
		return PayMethodGroupTransfer
	default:
		return PayMethodGroupBalance
	}
}