package f5

import (
	"flag"
	"sync"
	"sync/atomic"
	"time"
	"os"
	"q5"
)

type App_ struct {
	nodeId int
	instanceId int
	terminated bool
	pkgName string
	flags map[int32]int32
	servicing bool
	contextHash map[int32]q5.Args
	loopCond *sync.Cond
	imTopNode *IMMsgNode
	imBotNode *IMMsgNode
	imWorkNode *IMMsgNode
	imMsgMutex sync.RWMutex
	chGoLoopTimerExit chan int
	chGoLoopWait chan int64
	nowTime time.Time
	nowUnixNano int64
	imMsgHandlers [1024]func(int16, q5.Args)
	maxRunDelay int64
	maxScheduleTime int64
	updateFunc func ()
}

func (this *App_) Init(updateFunc func ()) {
	this.updateFunc = updateFunc
	this.nowTime = time.Now()
	atomic.StoreInt64(&this.nowUnixNano, this.nowTime.UnixNano())
	_Timer = &q5.XTimer{}
	_Timer.Init(
		func (context interface{}) int64 {
			return q5.GetTickCount()
		},
		nil,
		1000 * 60,
		5000)
	_SysLog = new(SysLog_)
	_SysLog.Init()
	_TgLog = new(TGLog_)
	_TgLog.Init()
	flag.IntVar(&this.nodeId, "n", 0, "node id")
	flag.IntVar(&this.instanceId, "i", 0, "instance id")
	flag.Parse()
	this.loopCond = sync.NewCond(new(sync.Mutex))
	this.chGoLoopTimerExit = make(chan int)
	this.chGoLoopWait = make(chan int64)
	this.outputRuningLog()
	SysLog().Info("node_id:%d instance_id:%d pid:%d",
		this.nodeId,
		this.instanceId,
		os.Getpid())
	this.installTimer()
	go this.goLoopTimer()
}

func (this *App_) UnInit() {
	this.chGoLoopTimerExit <- 1
	_Timer.UnInit()
	_Timer = nil
}

func (this *App_) Run() {
	for !this.terminated {
		this.nowTime = time.Now()
		atomic.StoreInt64(&this.nowUnixNano, this.nowTime.UnixNano())

		beginTick := q5.GetTickCount()
		_Timer.Update()
		this.dispatchIMMsg()
		this.updateFunc()
		this.schedule()
		endTick := q5.GetTickCount()

		if this.maxRunDelay < endTick - beginTick {
			this.maxRunDelay = endTick - beginTick
		}
	}
}

func (this *App_) NewUuid() int64 {
	return 0
}

func (this *App_) GetInstanceId() uint32 {
	return uint32(this.instanceId)
}

func (this *App_) GetNodeId() uint32 {
	return uint32(this.nodeId)
}

func (this *App_) GetPkgName() string {
	return this.pkgName
}

func (this *App_) SetPkgName(pkgName string) {
	this.pkgName = pkgName
}

func (this *App_) HasFlag(flag int32) bool {
	_, ok := this.flags[flag]
	return ok
}

func (this *App_) AddIMMsg(msgId int16, params q5.Args) {
	p := new(IMMsgNode)
	p.msgId = msgId
	p.params = params

	this.imMsgMutex.Lock()
	if this.imBotNode != nil {
		this.imBotNode.next = p
		this.imBotNode = p
	} else {
		this.imTopNode = p
		this.imBotNode = p
	}
	this.imMsgMutex.Unlock()

	this.loopCond.Broadcast()
}

func (this *App_) RegisterIMMsgHandle(msgId int16, handle func(int16,q5.Args)) {
	this.imMsgHandlers[msgId] = handle
}

func (this *App_) goLoopTimer() {
	var waitMs int64 = 1000 * 10
	for {
		select {
		case <-this.chGoLoopTimerExit:
			return
		case waitMs = <-this.chGoLoopWait:
			if waitMs < 1 {
				waitMs = 1
			}
		case <-time.After(time.Millisecond * time.Duration(waitMs)):
			waitMs = 1000 * 10
			this.loopCond.Broadcast()
		}
	}
}

func (this *App_) schedule() {
	this.chGoLoopWait <- Timer().GetIdleTime()
	this.loopCond.L.Lock()
	this.loopCond.Wait()
	this.loopCond.L.Unlock()
}

func (this *App_) NotifyLoopCond() {
	this.loopCond.Broadcast()
}

func (this *App_) NowUnix() int64 {
	return this.nowUnixNano / int64(time.Second)
}

func (this *App_) NowUnixMilli() int64 {
	return this.nowUnixNano / int64(time.Millisecond)
}

func (this *App_) NowUnixNano() int64 {
	return this.nowUnixNano
}

func (this *App_) outputRuningLog() {
	for _, val := range q5.GetInitLogs() {
		SysLog().Info("%s", val)
	}
}

func (this *App_) dispatchIMMsg() {
	this.imMsgMutex.Lock()
	this.imWorkNode = this.imTopNode
	this.imTopNode = nil
	this.imBotNode = nil
	this.imMsgMutex.Unlock()

	for this.imWorkNode != nil {
		currNode := this.imWorkNode
		this.imWorkNode = this.imWorkNode.next
		if this.imMsgHandlers[currNode.msgId] != nil {
			this.imMsgHandlers[currNode.msgId](currNode.msgId, currNode.params)
		}
	}
}

func (this *App_) installTimer() {
	Timer().SetInterval(1000 * 60,
		func (ev int32, params *q5.Args) {
			if ev == q5.TIMER_EXEC_EVENT {
				SysLog().Info("max_run_delay:%d max_schedule_time:%d",
					App.maxRunDelay,
					App.maxScheduleTime)
				App.maxRunDelay = 0
				App.maxScheduleTime = 0
			}
		})
}