package models

import "time"

// PointsConsumptionLog 积分消费记录
type PointsConsumptionLog struct {
	ID             uint       `gorm:"primarykey;autoIncrement" json:"id"`
	UserID         string     `gorm:"type:varchar(255);not null;index" json:"user_id"`
	FileName       string     `gorm:"type:varchar(500);not null" json:"file_name"`
	FileURL        string     `gorm:"type:text" json:"file_url"`
	PointsConsumed int        `gorm:"not null;default:10" json:"points_consumed"`
	BalanceAfter   int        `gorm:"not null" json:"balance_after"`
	CreatedAt      *time.Time `gorm:"column:created_at" json:"created_at"`
}

// TableName 指定表名
func (PointsConsumptionLog) TableName() string {
	return "points_consumption_log"
}

// CreateConsumptionLog 创建消费记录
func CreateConsumptionLog(log *PointsConsumptionLog) error {
	// 使用原始SQL插入，避免GORM的时间字段处理问题
	result := DB.Exec(
		"INSERT INTO points_consumption_log (user_id, file_name, file_url, points_consumed, balance_after) VALUES (?, ?, ?, ?, ?)",
		log.UserID, log.FileName, log.FileURL, log.PointsConsumed, log.BalanceAfter,
	)
	return result.Error
}

// GetConsumptionHistory 获取用户消费记录（按时间倒序）
func GetConsumptionHistory(userID string, page, pageSize int) ([]PointsConsumptionLog, int64, error) {
	var logs []PointsConsumptionLog
	var total int64

	DB.Model(&PointsConsumptionLog{}).Where("user_id = ?", userID).Count(&total)

	offset := (page - 1) * pageSize
	err := DB.Where("user_id = ?", userID).
		Order("created_at DESC").
		Offset(offset).
		Limit(pageSize).
		Find(&logs).Error

	return logs, total, err
}