package models

import (
	"time"
)

// UserStreak represents a user's consecutive recording streak
type UserStreak struct {
	ID              uint       `gorm:"primarykey" json:"id"`
	UserID          uint       `gorm:"uniqueIndex;not null" json:"user_id"`
	CurrentStreak   int        `gorm:"default:0" json:"current_streak"`    // 当前连续天数
	LongestStreak   int        `gorm:"default:0" json:"longest_streak"`    // 最长连续记录
	LastRecordDate  *time.Time `gorm:"type:date" json:"last_record_date"`  // 最后记账日期
	TotalRecordDays int        `gorm:"default:0" json:"total_record_days"` // 累计记账天数
	CreatedAt       time.Time  `json:"created_at"`
	UpdatedAt       time.Time  `json:"updated_at"`
}

// TableName specifies the table name for UserStreak
func (UserStreak) TableName() string {
	return "user_streaks"
}

// StreakInfo represents the streak information returned to frontend
type StreakInfo struct {
	CurrentStreak   int    `json:"current_streak"`    // 当前连续天数
	LongestStreak   int    `json:"longest_streak"`    // 最长连续记录
	TotalRecordDays int    `json:"total_record_days"` // 累计记账天数
	HasRecordToday  bool   `json:"has_record_today"`  // 今天是否已记账
	Message         string `json:"message"`           // 提示信息
}

// DailyContribution represents transaction count for a specific date
type DailyContribution struct {
	Date  string `json:"date"`
	Count int    `json:"count"`
}