package service

import (
	"bufio"
	"designs/config"
	"designs/global"
	"designs/model"
	"designs/utils"
	"fmt"
	"github.com/pkg/errors"
	"math"
	"os"
	"path/filepath"
	"strconv"
	"strings"
	"time"
)

func RemainDataBydDay(types int, pf string, gid string, startTime string, endTime string) (map[string]map[string]interface{}, error) {
	var err error

	start := time.Now()

	//对于传过来的endTime ,做一个处理
	t, _ := time.Parse("2006-01-02", endTime)
	endTimeData := t.AddDate(0, 0, 1).Format("2006-01-02")

	UsersBydDay := utils.GetTimeDayDate(startTime, endTime)     //用户分别是在哪天注册的
	UserLoginBydDay := utils.GetTimeDayDate(startTime, endTime) //用户分别是在哪天注册的
	var UsersId []int
	userIdMap := make(map[int]bool)
	if types == 1 {

		//先计算出这个时间内 ，每天的注册用户数量
		var users []model.User
		err = global.App.DB.Table("user").
			Where("pf", pf).Where("gid", gid).
			Where("createdAt", ">=", startTime).
			Where("createdAt", "<=", endTimeData).
			Select("userId", "createdAt").
			Scan(&users).Error
		if err != nil {
			return nil, err
		}

		fmt.Printf("步骤2耗时: %v\n", time.Since(start))

		for _, user := range users {
			userIdMap[user.UserId] = true
			UsersBydDay[user.CreatedAt.Format("2006-01-02")] = append(UsersBydDay[user.CreatedAt.Format("2006-01-02")], user.UserId)
		}
		for user := range userIdMap {
			UsersId = append(UsersId, user)
		}
		users = nil //用完后清空内存
	} else if types == 2 {
		var users []model.UserLogin
		err = global.App.DB.Table("user_login").
			Where("pf", pf).Where("gid", gid).
			Where("loginTime", ">=", startTime).
			Where("loginTime", "<=", endTimeData).
			Group("userId").
			Scan(&users).Error
		if err != nil {
			return nil, err
		}
		for _, user := range users {
			UsersId = append(UsersId, user.UserId)
			UsersBydDay[user.LoginTime.Format("2006-01-02")] = append(UsersBydDay[user.LoginTime.Format("2006-01-02")], user.UserId)
		}

	} else {
		return nil, errors.New("type 参数错误")
	}

	//把每天的注册用户进行集合，查出后面所有天数的活跃情况
	var UserLogin []model.UserOnline
	//err = global.App.DB.Table("user_online_copy1 as user_online").
	//	Where("pf", pf).Where("gid", gid).
	//	Raw("USE INDEX (DATE)").
	//	WhereIn("userId", UsersId).
	//	Where("logTime", ">=", startTime).
	//	Select("logTime", "user_online.userId").
	//	Group("date,user_online.userId").
	//	Scan(&UserLogin).Error
	//if err != nil {
	//	return nil, err
	//}

	// 使用 Raw 方法执行带有 FORCE INDEX 的 SQL 查询
	query := `
		SELECT 
			logTime,
			user_online.userId 
		FROM 
			user_online AS user_online USE INDEX (date)
			INNER JOIN (
				SELECT userId 
				FROM user 
				WHERE pf = ? 
				  AND gid = ? 
				  AND createdAt >= ? 
				  AND createdAt <= ?
			) AS t ON t.userId = user_online.userId 
		WHERE 
			user_online.pf = ? 
			AND user_online.gid = ? 
			AND DATE(logTime) >= ?
		GROUP BY 
			date,
			user_online.userId;
	`

	err = global.App.DB.Raw(query, pf, gid, startTime, endTime, pf, gid, startTime).Scan(&UserLogin).Error
	if err != nil {
		return nil, err
	}

	fmt.Printf("步骤3耗时: %v\n", time.Since(start))

	//对这些数据进行整理
	for _, v := range UserLogin {
		//根据天进行分组，得出总共有多少
		times := v.LogTime.Format("2006-01-02")
		UserLoginBydDay[times] = append(UserLoginBydDay[times], v.UserId)
	}

	res := make(map[string]map[string]interface{})
	//逐天比较注册的数据和留存的数据，得出每天的活跃比例和人数
	for day, v := range UsersBydDay {
		remain := make(map[string]interface{})
		remain["count"] = len(v)
		remain["date"] = day
		//分别比较每一天的数据
		for dayDate, loginDay := range UserLoginBydDay {
			ok, remainDays := utils.CompareDates(dayDate, day)
			if !ok {
				continue
			}
			remain[remainDays] = math.Round(utils.IntersectionRate(v, loginDay)*100*100) / 100
		}

		res[day] = remain
	}

	fmt.Printf("步骤4耗时: %v\n", time.Since(start))

	return res, nil
}

func RemainDataBydDayNew(types int, pf string, gid string, startTime string, endTime string) (map[string]map[string]interface{}, error) {
	//目前只有types = 1

	//对于传过来的endTime ,做一个处理
	t, _ := time.Parse("2006-01-02", endTime)
	endTimeData := t.AddDate(0, 0, 1).Format("2006-01-02")

	UsersBydDay := utils.GetTimeDayDate(startTime, endTime) //用户分别是在哪天注册的
	//先计算出这个时间内 ，每天的注册用户数量
	var users []model.User
	err := global.App.DB.Table("user").
		Where("pf", pf).Where("gid", gid).
		Where("createdAt", ">=", startTime).
		Where("createdAt", "<=", endTimeData).
		Select("userId", "createdAt").
		Scan(&users).Error
	if err != nil {
		return nil, err
	}
	var UsersId []int
	userIdMap := make(map[int]bool)

	for _, user := range users {
		userIdMap[user.UserId] = true
		UsersBydDay[user.CreatedAt.Format("2006-01-02")] = append(UsersBydDay[user.CreatedAt.Format("2006-01-02")], user.UserId)
	}
	for user := range userIdMap {
		UsersId = append(UsersId, user)
	}

	UserLoginBydDay := utils.GetTimeDayDate(startTime, endTime) //用户分别是在哪天注册的

	for k, _ := range UserLoginBydDay {
		//根据pf,gid,startTime,endTime 取出数据
		UserLoginBydDay[k] = GetLocalActiveLog(gid, pf, k)
	}

	res := make(map[string]map[string]interface{})
	for day, v := range UsersBydDay {
		remain := make(map[string]interface{})
		remain["count"] = len(v)
		remain["date"] = day
		//分别比较每一天的数据
		for dayDate, loginDay := range UserLoginBydDay {
			ok, remainDays := utils.CompareDates(dayDate, day)
			if !ok {
				continue
			}
			remain[remainDays] = math.Round(utils.IntersectionRate(v, loginDay)*100*100) / 100
		}

		res[day] = remain
	}

	return res, nil
}

func OnlineToFile() {

	//分批读取数据
	now := time.Now()
	for i := 1; i <= 45; i++ {
		var onlineData []model.UserOnline

		date := now.AddDate(0, 0, -i).Format("20060102")

		global.App.DB.Table("user_online_old").Where("date", date).Scan(&onlineData)

		//根据gid和pf，分文件存储
		for _, v := range onlineData {
			SetLocalActiveLog(v.Gid, v.Pf, "", v.UserId, v.Type, v.LogTime)
		}

		fmt.Println(date, "数据归档完成，耗时：", time.Since(now))
	}

	//var onlineData []model.UserOnline
	//
	//date := "20250423"
	//
	//global.App.DB.Table("user_online").Where("date", date).Scan(&onlineData)
	//
	////根据gid和pf，分文件存储
	//for _, v := range onlineData {
	//	SetLocalActiveLog(v.Gid, v.Pf, "", v.UserId, v.Type, v.LogTime)
	//}

}

func SetLocalActiveLog(gid string, pf string, openId string, userId int, types int, now time.Time) error {
	// 生成日期目录路径（示例：./data/2024-06-15）
	dateDir := now.Format("2006-01-02")
	dirPath := filepath.Join("storage", dateDir)

	// 创建日期目录（若不存在）
	if err := os.MkdirAll(dirPath, 0755); err != nil {
		return err
	}

	// 生成文件名（示例：g123_wechat.txt）
	fileName := fmt.Sprintf("%s_%s.txt", gid, pf)
	filePath := filepath.Join(dirPath, fileName)

	// 追加写入文件
	file, err := os.OpenFile(filePath, os.O_APPEND|os.O_CREATE|os.O_WRONLY, 0644)
	if err != nil {
		return fmt.Errorf("failed to open file: %v", err)
	}
	defer file.Close()

	// 写入数据（示例：1584,oXyZ123456\n）
	if _, err := fmt.Fprintf(file, "%d,%d,%s\n", userId, types, now.Format("2006-01-02 15:04:05")); err != nil {
		return fmt.Errorf("failed to write file: %v", err)
	}

	return nil
}

func GetLocalActiveLog(gid string, pf string, date string) []int {
	var dir string
	if config.Get("app.local") == "local" {
		//url = "mongodb://localhost:27017"
		dir = "storage"
	} else {
		dir = "/www/wwwroot/chunhao_receive/storage"
	}

	dirPath := filepath.Join(dir, date)
	fileName := fmt.Sprintf("%s_%s.txt", gid, pf)
	filePath := filepath.Join(dirPath, fileName)

	file, _ := os.Open(filePath)

	defer file.Close() // 确保函数结束时关闭文件

	// 创建 Scanner 对象
	scanner := bufio.NewScanner(file)

	var res []int

	// 逐行读取文件内容
	lineNumber := 1
	for scanner.Scan() {
		line := scanner.Text() // 获取当前行内容
		lineNumber++

		userId, _ := strconv.Atoi(strings.Split(line, ",")[0])
		if !utils.InArray(userId, res) {
			res = append(res, userId)
		}
	}

	return res
}