package combomatch

import (
	"bet24.com/log"
	"bet24.com/redis"
	"encoding/json"
	"strconv"
	"sync"
	"time"
)

var freeCountMgr *userfreecount

func getFreeCountManager() *userfreecount {
	if freeCountMgr == nil {
		freeCountMgr = new(userfreecount)
	}
	return freeCountMgr
}

type freeInfo struct {
	MatchId   int
	FreeCount int
}

type userfreecount struct {
	lock         *sync.RWMutex
	userFreeInfo map[int][]freeInfo
	isDirty      bool
	lastCheckDay int
}

const refresh_usercount_config_sec = 600

func (m *userfreecount) run() {
	log.Release("combomatch.userfreecount.run()")
	m.lock = &sync.RWMutex{}
	m.userFreeInfo = make(map[int][]freeInfo)
	m.loadFromRedis()
	m.lastCheckDay = time.Now().Day()
	m.flush()
}

func getUserFreeCountRedisKey() string {
	return "combomatch:userfreecount"
}

func (m *userfreecount) loadFromRedis() {
	data, ok := redis.String_Get(getUserFreeCountRedisKey())
	if data == "" || !ok {
		return
	}
	m.lock.Lock()
	err := json.Unmarshal([]byte(data), &m.userFreeInfo)
	m.lock.Unlock()
	if err != nil {
		log.Release("userfreecount.loadFromRedis Unmarshal failed err:%v,%s", err, data)
		return
	}
}

func (m *userfreecount) doFlush() {
	m.isDirty = true
	m.flush()
}

func (m *userfreecount) flush() {
	time.AfterFunc(refresh_usercount_config_sec*time.Second, m.flush)
	m.lock.RLock()
	if !m.isDirty {
		m.lock.RUnlock()
		return
	}

	m.isDirty = false
	d, _ := json.Marshal(m.userFreeInfo)
	m.lock.RUnlock()
	go redis.String_Set(getUserFreeCountRedisKey(), string(d))
}

func (m *userfreecount) dump(userIdStr string) {
	log.Release("-------------------------------")
	log.Release("userfreecount.dumpUser[%s]", userIdStr)
	defer func() {
		log.Release("+++++++++++++++++++++++++++++++")
		log.Release("")
	}()
	userId, err := strconv.Atoi(userIdStr)
	if err != nil {
		log.Release("    atoi error %v", err)
		return
	}
	fi := m.getUserFreeInfo(userId)
	if len(fi) == 0 {
		log.Release("    user has no free count")
		return
	}

	for _, v := range fi {
		log.Release("    MatchId[%d],Count[%d]", v.MatchId, v.FreeCount)
	}
}

func (m *userfreecount) addFreeCount(userId int, matchId int) {
	m.checkDayRefresh()
	fi := m.getUserFreeInfo(userId)
	added := false
	for i := 0; i < len(fi); i++ {
		if fi[i].MatchId == matchId {
			fi[i].FreeCount++
			added = true
			break
		}
	}
	// 之前没有
	if !added {
		fi = append(fi, freeInfo{MatchId: matchId, FreeCount: 1})
	}

	m.lock.Lock()
	m.userFreeInfo[userId] = fi
	m.lock.Unlock()
	m.isDirty = true
	return
}

func (m *userfreecount) reduceFreeCount(userId int, matchId int) {
	m.checkDayRefresh()
	fi := m.getUserFreeInfo(userId)
	for i := 0; i < len(fi); i++ {
		if fi[i].MatchId == matchId {
			fi[i].FreeCount--
			if fi[i].FreeCount < 0 {
				fi[i].FreeCount = 0
			}
			break
		}
	}
	m.lock.Lock()
	m.userFreeInfo[userId] = fi
	m.lock.Unlock()
	m.isDirty = true
	return
}

func (m *userfreecount) checkDayRefresh() {
	nowDay := time.Now().Day()
	if nowDay == m.lastCheckDay {
		return
	}
	m.lastCheckDay = nowDay
	// 清理数据
	m.lock.Lock()
	m.userFreeInfo = make(map[int][]freeInfo)
	m.lock.Unlock()
	m.isDirty = true
}

func (m *userfreecount) getUserFreeInfo(userId int) []freeInfo {
	m.lock.RLock()
	defer m.lock.RUnlock()
	ret, ok := m.userFreeInfo[userId]
	if !ok {
		return []freeInfo{}
	}
	return ret
}

func (m *userfreecount) getUserFreeCount(userId, matchId int) int {
	fi := m.getUserFreeInfo(userId)
	for _, v := range fi {
		if v.MatchId == matchId {
			return v.FreeCount
		}
	}
	return 0
}