package model

import (
	"context"
	"errors"
	"fmt"
	"github.com/go-redis/redis/v8"
	"math"
	"math/rand/v2"
	"samba/pkg/log"
	"samba/stub"
	"samba/util/rdbkey"
	"strconv"
	"strings"
)

// 获取玩家所在房间
func SetUserPlayingRoom(userId int64, roomId int, isEnter bool) {
	if isEnter {
		if err := rdbBaseInfo.HSet(context.Background(), rdbkey.UserPlayingRoomKey(userId), roomId, 1).Err(); err != nil {
			log.Error(err.Error())
		}
		_ = rdbBaseInfo.Expire(context.Background(), rdbkey.UserPlayingRoomKey(userId), redis30day).Err()
	} else {
		if err := rdbBaseInfo.HDel(context.Background(), rdbkey.UserPlayingRoomKey(userId), fmt.Sprintf("%v", roomId)).Err(); err != nil {
			log.Error(err.Error())
		}
		_ = rdbBaseInfo.Expire(context.Background(), rdbkey.UserPlayingRoomKey(userId), redis30day).Err()
	}
}

func GetUserPlayingRoom(userId int64) map[int]int {
	if maps, err := rdbBaseInfo.HGetAll(context.Background(), rdbkey.UserPlayingRoomKey(userId)).Result(); err != nil && !errors.Is(err, redis.Nil) {
		log.Error(err.Error())
		return map[int]int{}
	} else {
		rooms := map[int]int{}
		for k, v := range maps {
			roomId, _ := strconv.ParseInt(k, 10, 64)
			isNew, _ := strconv.ParseInt(v, 10, 64)
			rooms[int(roomId)] = int(isNew)
		}
		return rooms
	}
}

// AddRoomTypePlayerNum 增加房间内的在玩数量，返回增加后的结果
func AddRoomTypePlayerNum(rmInfo *stub.Room, uid int64) (int64, error) {
	var num int64
	var err error
	if rmInfo.Mode == int(stub.RmClub) {
		if err = rdbBaseInfo.SAdd(context.Background(), rdbkey.ClubRoomPlayerNumKey(), uid).Err(); err != nil {
			log.Error(err.Error())
		}
	} else {
		if err = rdbBaseInfo.SAdd(context.Background(), rdbkey.RoomTypePlayerNumKey(rmInfo.Id), uid).Err(); err != nil {
			log.Error(err.Error())
		}
		if num, err = AddRoomPlayingNum(rmInfo.Id); err != nil {
			log.Error(err.Error())
		}
	}
	return num, err
}

// DelRoomTypePlayerNum 减少房间内的在玩数量，返回改变后的结果
func DelRoomTypePlayerNum(rmInfo *stub.Room, uid int64) (int64, error) {
	var num int64
	var err error
	if rmInfo.Mode == int(stub.RmClub) {
		if err = rdbBaseInfo.SRem(context.Background(), rdbkey.ClubRoomPlayerNumKey(), uid).Err(); err != nil {
			log.Error(err.Error())
		}
	} else {
		if err = rdbBaseInfo.SRem(context.Background(), rdbkey.RoomTypePlayerNumKey(rmInfo.Id), uid).Err(); err != nil {
			log.Error(err.Error())
		}
		if num, err = DelRoomPlayingNum(rmInfo.Id); err != nil {
			log.Error(err.Error())
		}
	}
	return num, err
}

func AddRoomPlayingNum(roomType int) (int64, error) {
	return rdbBaseInfo.HIncrBy(context.TODO(), rdbkey.RoomPlayingNumKey(), fmt.Sprintf("%d-real", roomType), 1).Result()
	//if err != nil {
	//	return err
	//}
	//err = rdbBaseInfo.HSet(context.TODO(), rdbkey.RoomPlayingNumKey(), fmt.Sprintf("%d-fake", roomType), CalculateFakeCount(num)).Err()
	//return err
}

func DelRoomPlayingNum(roomType int) (int64, error) {
	return rdbBaseInfo.HIncrBy(context.TODO(), rdbkey.RoomPlayingNumKey(), fmt.Sprintf("%d-real", roomType), -1).Result()
	//if err != nil {
	//	return err
	//}
	//err = rdbBaseInfo.HSet(context.TODO(), rdbkey.RoomPlayingNumKey(), fmt.Sprintf("%d-fake", roomType), CalculateFakeCount(num)).Err()
	//return err
}

func GetAllRoomPlayingNum() (map[int]int, error) {
	res, err := rdbBaseInfo.HGetAll(context.TODO(), rdbkey.RoomPlayingNumKey()).Result()
	if err != nil {
		return nil, err
	}
	mp := make(map[int]int, len(res))
	for k, v := range res {
		roomType, err := strconv.Atoi(strings.Split(k, "-")[0])
		if err != nil {
			return nil, err
		}
		count, err := strconv.Atoi(v)
		if err != nil {
			return nil, err
		}
		mp[roomType] = count
	}
	return mp, nil

}

// CalculateFakeCount 计算虚假人数
// realCount: 实际人数
// 返回虚假人数
func CalculateFakeCount(realCount int64) int64 {
	if realCount < 0 {
		realCount = 0
	}
	var coefficient float64

	switch {
	case realCount <= 50:
		// 随机生成每天的系数范围 [5.0, 10.0]
		coefficient = 5.0 + rand.Float64()*(10.0-5.0)
	case realCount <= 200:
		coefficient = 3.0
	case realCount <= 800:
		coefficient = 1.0
	default:
		coefficient = 0
	}

	// 计算虚假人数
	fakeCount := float64(realCount) + float64(realCount)*coefficient

	// 返回向下取整的虚假人数
	return int64(math.Floor(fakeCount))
}