package tick

//管理整体的一个结构
//接受事件，更新
//接受事件，fetch
import "tickserver/framework/msq"
import "time"
import "errors"
import "sync"
import "tickserver/framework/store"

//import "log"

var ErrChanBusy = errors.New("ErrChanBusy")
var ErrChanClosed = errors.New("ErrChanClosed")
var ErrTimeRange = errors.New("ErrTimeRange")
var ErrDataSourceType = errors.New("ErrDataSourceType")
var ErrTimeOrder = errors.New("ErrTimeOrder")
var ErrNoData = errors.New("ErrNoData")

type TickServer struct {
	server      *msq.MsqServer
	logclient   *LogClient //源数据本地保存写文件，一个小时一个压缩文件
	client      *msq.MsqClient
	queryclient *QueryClient //源数据下载信息查询(数据库tick_server的tick_index表查询)
	subss       map[int64]*Subscribe
	tickss      map[string]map[int64]*Market
	datasource  map[string]DataSource
	logsaves    map[string]*store.Save
	subId       int64
}

func NewTickServer() (*TickServer, error) {
	s := &TickServer{}
	s.server = msq.NewMsqServer()
	go s.server.Start()
	//交易结果通过mtf发出来，配对成功之类的消息
	var err error
	s.logclient, err = NewLogClient(s.server, 0)
	if err != nil {
		return nil, err
	}
	s.queryclient, err = NewQueryClient(s.server)
	if err != nil {
		return nil, err
	}
	//处理消息
	client := msq.NewMsqClient(s.server, time.Second, false, 102400)
	go client.Recv(nil)
	err = client.ConnectPrivate()
	if err != nil {
		return nil, err
	}
	s.client = client
	s.logAction()                                 //源数据广播给tickserver，并送入本地保存通道，并保存为内存缓存tick数据
	s.ticksAction()                               //获取内存缓存最新tick数据（实际没有被用到）
	s.downloadAction()                            //供ts下载ds本地保存的源数据文件数据，暂未支持
	s.historyAction()                             //供ts获取ds本地保存的源数据文件信息(tick_index表)
	s.subAction()                                 //ts订阅行情
	s.instrumentsAction()                         //ts获取某类型的所有symbol的信息
	s.instrumentAction()                          //ts获取某类型的某个symbol的信息
	s.subss = make(map[int64]*Subscribe)          //订阅信息
	s.tickss = make(map[string]map[int64]*Market) //最新tick数据
	s.datasource = make(map[string]DataSource)    //数据源
	s.logsaves = make(map[string]*store.Save)     //源数据保存对象
	return s, nil
}

func (s *TickServer) AddSaveWriter(typ string, bDownload bool) {
	ms := &MarketSave{}
	//log.Println("AddSaveWriter B")
	logsave, err := store.NewSaveWriter(serverconf.DsMap[typ].SaveDir, typ, bDownload, ms, db)
	if err != nil {
		//log.Println("debugggggggg22222222", err)
		return
	}
	//log.Println("AddSaveWriter E")
	s.logsaves[typ] = logsave
}

func (s *TickServer) AddDataSource(ds DataSource, bDownload bool) {
	_, ok := s.datasource[ds.Name()]
	if !ok {
		s.datasource[ds.Name()] = ds
		s.AddSaveWriter(ds.Name(), bDownload)
		mk := ds.GetMarket()
		go func() {
			for mkdata := range mk {
				//log.Println("send fuck")
				s.client.SendMessage(msq.MsgTK, mkdata) //保存到ds本地文件，广播给ts，缓存到ds内存
			}
		}()
	}
}

func (s *TickServer) GetMsq() *msq.MsqServer {
	return s.server
}

func (s *TickServer) GetClient() *msq.MsqClient {
	return s.client
}

func (s *TickServer) SetLogId(logId int64) {
	s.logclient.SetLogId(logId)
}

func (s *TickServer) GetInstruments(typ string) []Instrument {
	ds, ok := s.datasource[typ]
	if ok {
		return ds.GetInstrument()
	}
	return nil
}

func (s *TickServer) GetInstrument(typ string, id int64) (Instrument, error) {
	ds, ok := s.datasource[typ]
	if ok {
		inss := ds.GetInstrument()
		for _, v := range inss {
			if v.Id == id {
				return v, nil
			}
		}
	}
	var ins Instrument
	return ins, errors.New("no ins")
}

func (s *TickServer) logAction() {
	s.server.RegisterAction(msq.MsgTK, func(mtf *msq.MsqServer, msg *msq.Message) {
		//send to chan
		if msg.Type == msq.MsgTK {
			mk := msg.GetData().(*Market)
			//log.Println("log fuck")
			for key, sub := range s.subss {
				err := sub.Send(mk)
				if err == ErrChanClosed {
					delete(s.subss, key)
				}
				if err == ErrChanBusy {
					sub.Clear()
					sub.Send(mk)
				}
			}
			//set ticks
			ty := DataTypeName(int(mk.Type))
			insId := mk.InsId
			if data, ok := s.tickss[ty]; ok {
				data[insId] = mk
			} else {
				s.tickss[ty] = make(map[int64]*Market)
				s.tickss[ty][insId] = mk
			}
		}
		s.logclient.Log(msg)
	})
}

func unixNow() int32 {
	sec := time.Now().Unix()
	return int32(sec)
}

func nowTime() int64 {
	return time.Now().UnixNano()
}

func (s *TickServer) ticksAction() {
	s.server.RegisterAction(msq.MsgTKGetTicks, func(mtf *msq.MsqServer, msg *msq.Message) {
		req := msg.GetData().(*TypeRequest)
		data, ok := s.tickss[req.Type]
		if !ok {
			msg.SetErr(errors.New("ticks::req.Type no data"))
			return
		}
		var ticks []*Market
		for _, tick := range data {
			ticks = append(ticks, tick)
		}
		msg.SetData(ticks)
	})
}

func (s *TickServer) instrumentsAction() {
	s.server.RegisterAction(msq.MsgInss, func(mtf *msq.MsqServer, msg *msq.Message) {
		req := msg.GetData().(*InstrumentsRequest)
		inss := s.GetInstruments(req.Type)
		if inss == nil {
			msg.SetErr(errors.New("instruments::req.Type no data"))
			return
		}
		msg.SetData(inss)
	})
}

func (s *TickServer) instrumentAction() {
	s.server.RegisterAction(msq.MsgIns, func(mtf *msq.MsqServer, msg *msq.Message) {
		req := msg.GetData().(*InstrumentRequest)
		ins, err := s.GetInstrument(req.Type, req.Id)
		if err != nil {
			msg.SetErr(errors.New("instrument::req.Type no data"))
			return
		}
		msg.SetData(ins)
	})
}

func (s *TickServer) downloadAction() {
	s.server.RegisterAction(msq.MsgTKDown, func(mtf *msq.MsqServer, msg *msq.Message) {
		s.queryclient.Query(msg)
	})
}

func (s *TickServer) historyAction() {
	s.server.RegisterAction(msq.MsgTKHis, func(mtf *msq.MsqServer, msg *msq.Message) {
		s.queryclient.Query(msg)
	})
}

func (s *TickServer) subAction() {
	s.server.RegisterAction(msq.MsgTKSub, func(mtf *msq.MsqServer, msg *msq.Message) {
		req := msg.GetData().(*StreamRequest)
		sub, err := s.Subscibe(req.Type)
		msg.SetData(sub)
		msg.SetErr(err)
	})
}

func (s *TickServer) Start() {
	s.server.Start()
}

func (s *TickServer) Close() error {
	return s.server.Close()
}

func (s *TickServer) Subscibe(ty string) (*Subscribe, error) {
	s.subId++
	sub := &Subscribe{}
	sub.server = s
	sub.ty = ty
	sub.tyId = int32(TypeId(ty))
	sub.id = s.subId
	sub.chmk = make(chan *Market, 1024)
	s.subss[sub.id] = sub
	return sub, nil
}

type Subscribe struct {
	server   *TickServer
	chmk     chan *Market
	ty       string
	id       int64
	tyId     int32
	isclosed bool
	mu       sync.Mutex
}

func (sub *Subscribe) Close() {
	sub.mu.Lock()
	defer sub.mu.Unlock()
	sub.isclosed = true
}

func (sub *Subscribe) Clear() {
	for {
		select {
		case <-sub.chmk:
			//if mk.Type == IntTdx && mk.InsId == 1 {
			//log.Println("[subscribe]data trace", mk.Type, mk.InsId)
			//}
		default:
			return
		}
	}
}

func (sub *Subscribe) IsClosed() bool {
	sub.mu.Lock()
	defer sub.mu.Unlock()
	return sub.isclosed
}

func (sub *Subscribe) Send(mk *Market) error {
	if sub.IsClosed() {
		return ErrChanClosed
	}
	if mk.Type != sub.tyId {
		return nil
	}
	//尝试发送
	select {
	case sub.chmk <- mk:
	default:
		return ErrChanBusy
	}
	return nil
}