package handlers

import (
	"awesomeProject/internal/common"
	"awesomeProject/internal/models"
	"net/http"
	"strconv"

	"github.com/gin-gonic/gin"
)

// UserScoreHandler 用户端积分处理器
type UserScoreHandler struct{}

// GetMyScoreRecords 获取我的积分记录列表
func (h *UserScoreHandler) GetMyScoreRecords(c *gin.Context) {
	currentUser, _ := c.Get("current_user")
	user := currentUser.(models.User)

	// 分页参数
	page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
	pageSize, _ := strconv.Atoi(c.DefaultQuery("page_size", "20"))
	if page < 1 {
		page = 1
	}
	if pageSize < 1 || pageSize > 50 {
		pageSize = 20
	}

	// 搜索参数
	changeType := c.Query("change_type") // all, positive, negative

	db := common.GetDB()
	var records []models.ScoreRecord
	var total int64

	// 构建查询条件 - 只查询当前用户的积分记录
	query := db.Model(&models.ScoreRecord{}).Where("user_id = ?", user.ID)

	// 添加积分变化类型筛选
	if changeType == "positive" {
		query = query.Where("change_number > 0")
	} else if changeType == "negative" {
		query = query.Where("change_number < 0")
	}

	// 获取总数
	query.Count(&total)

	// 分页查询
	offset := (page - 1) * pageSize
	err := query.Offset(offset).Limit(pageSize).Order("created_at DESC").Find(&records).Error
	if err != nil {
		c.JSON(http.StatusOK, common.Error(500, "查询积分记录失败"))
		return
	}

	// 计算统计信息
	var totalIncome int     // 总收入积分
	var totalExpense int    // 总支出积分
	var currentPoints int   // 当前积分

	currentPoints = user.CurrentPoints

	// 统计总收入和总支出
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number > 0", user.ID).
		Select("COALESCE(SUM(change_number), 0)").Scan(&totalIncome)
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number < 0", user.ID).
		Select("COALESCE(SUM(ABS(change_number)), 0)").Scan(&totalExpense)

	// 构建返回数据
	result := map[string]interface{}{
		"list":           records,
		"total":          total,
		"page":           page,
		"page_size":      pageSize,
		"current_points": currentPoints,
		"total_income":   totalIncome,
		"total_expense":  totalExpense,
	}

	c.JSON(http.StatusOK, common.Success(result))
}

// GetMyScoreStats 获取我的积分统计信息
func (h *UserScoreHandler) GetMyScoreStats(c *gin.Context) {
	currentUser, _ := c.Get("current_user")
	user := currentUser.(models.User)

	db := common.GetDB()

	// 当前积分
	currentPoints := user.CurrentPoints

	// 总收入积分
	var totalIncome int
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number > 0", user.ID).
		Select("COALESCE(SUM(change_number), 0)").Scan(&totalIncome)

	// 总支出积分
	var totalExpense int
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number < 0", user.ID).
		Select("COALESCE(SUM(ABS(change_number)), 0)").Scan(&totalExpense)

	// 今日获得积分
	var todayIncome int
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number > 0 AND DATE(created_at) = CURDATE()", user.ID).
		Select("COALESCE(SUM(change_number), 0)").Scan(&todayIncome)

	// 本月获得积分
	var monthIncome int
	db.Model(&models.ScoreRecord{}).Where("user_id = ? AND change_number > 0 AND YEAR(created_at) = YEAR(NOW()) AND MONTH(created_at) = MONTH(NOW())", user.ID).
		Select("COALESCE(SUM(change_number), 0)").Scan(&monthIncome)

	// 最近的积分记录（5条）
	var recentRecords []models.ScoreRecord
	db.Model(&models.ScoreRecord{}).Where("user_id = ?", user.ID).
		Order("created_at DESC").Limit(5).Find(&recentRecords)

	// 构建返回数据
	result := map[string]interface{}{
		"current_points":  currentPoints,
		"total_income":    totalIncome,
		"total_expense":   totalExpense,
		"today_income":    todayIncome,
		"month_income":    monthIncome,
		"recent_records":  recentRecords,
	}

	c.JSON(http.StatusOK, common.Success(result))
}