package main

import (
	"encoding/json"
	"fmt"
	"github.com/gogf/gf/os/grpool"
	"github.com/gogf/gf/util/guid"
	"sparrow/pkg/actors"
	"sparrow/pkg/models"
	"sparrow/pkg/productconfig"
	"sparrow/pkg/protocol"
	"sparrow/pkg/queue"
	"sparrow/pkg/queue/msgQueue"
	"sparrow/pkg/rpcs"
	"sparrow/pkg/rule"
	"sparrow/pkg/ruleEngine"
	"sparrow/pkg/server"
	"time"
)

type Controller struct {
	producer     queue.QueueProducer
	timer        *rule.Timer
	ift          *rule.Ifttt
	actorContext *ruleEngine.SystemContext
	consumer     queue.QueueConsumer
	cluster      *ClusterService
	pool         *grpool.Pool
}

func NewController(rabbithost string) (*Controller, error) {
	admin := msgQueue.NewRabbitMessageQueueAdmin(&msgQueue.RabbitMqSettings{Host: rabbithost}, nil)
	producer := msgQueue.NewRabbitMqProducer(admin, "default")
	consumer := msgQueue.NewRabbitConsumer(admin, "MAIN")
	_ = consumer.Subscribe()
	// timer
	t := rule.NewTimer()
	t.Run()

	// ifttt
	ttt := rule.NewIfttt()
	if err := producer.Init(); err != nil {
		return nil, err
	}

	return &Controller{
		producer: producer,
		timer:    t,
		ift:      ttt,
		consumer: consumer,
		cluster:  &ClusterService{producer: producer},
		pool:     grpool.New(),
	}, nil
}

func (c *Controller) SetStatus(args rpcs.ArgsSetStatus, reply *rpcs.ReplySetStatus) error {
	rpchost, err := getAccessRPCHost(args.DeviceId)
	if err != nil {
		return err
	}

	return server.RPCCallByHost(rpchost, "Access.SetStatus", args, reply)
}

func (c *Controller) GetStatus(args rpcs.ArgsGetStatus, reply *rpcs.ReplyGetStatus) error {
	rpchost, err := getAccessRPCHost(args.Id)
	if err != nil {
		return err
	}

	return server.RPCCallByHost(rpchost, "Access.GetStatus", args, reply)
}

func (c *Controller) OnStatus(args rpcs.ArgsOnStatus, reply *rpcs.ReplyOnStatus) error {
	t := time.Unix(int64(args.Timestamp/1000), 0)
	data, err := c.processStatusToQueue(args)
	if err != nil {
		return err
	}
	msg := &protocol.Message{
		Id:       guid.S(),
		Ts:       &t,
		Type:     protocol.POST_ATTRIBUTES_REQUEST,
		Data:     data,
		Callback: nil,
		MetaData: map[string]interface{}{
			"tenant_id": args.VendorId,
			"device_id": args.DeviceId,
		},
		Originator: "device",
	}
	tpi := queue.ResolvePartition("RULE_ENGINE",
		msg.GetQueueName(),
		args.VendorId,
		args.DeviceId)
	g, err := queue.NewGobQueueMessage(msg)
	if err != nil {
		return err
	}
	return c.producer.Send(tpi, g, nil)
}

func (c *Controller) processStatusToQueue(args rpcs.ArgsOnStatus) (string, error) {
	var result string
	device := &models.Device{}
	err := server.RPCCallByName(nil, rpcs.RegistryServerName, "Registry.FindDeviceByRecordId", &rpcs.ArgsDeviceAuth{DeviceID: args.DeviceId}, device)
	if err != nil {
		server.Log.Errorf("find device error : %v", err)
		return result, err
	}

	product := &models.Product{}
	err = server.RPCCallByName(nil, rpcs.RegistryServerName, "Registry.FindProduct", &device.ProductID, product)
	if err != nil {
		server.Log.Errorf("find product error : %v", err)
		return result, err
	}

	pc, err := productconfig.New(product.ProductConfig)
	if err != nil {
		server.Log.Errorf("product config error : %v", err)
		return result, err
	}
	ev := &protocol.Data{}
	ev.SubData = args.Subdata
	m, err := pc.StatusToMap(ev.SubData)
	if err != nil {
		server.Log.Errorf("gen status json error : %v", err)
		return result, err
	}
	b, err := json.Marshal(&m)
	if err != nil {
		server.Log.Errorf("marshal json error : %v", err)
	}
	result = string(b)
	return result, nil
}

func (c *Controller) OnEvent(args rpcs.ArgsOnEvent, reply *rpcs.ReplyOnEvent) error {
	go func() {
		err := c.ift.Check(args.DeviceId, args.No)
		if err != nil {
			server.Log.Warnf("perform ifttt rules error : %v", err)
		}
	}()

	return nil
}

func (c *Controller) SendCommand(args rpcs.ArgsSendCommand, reply *rpcs.ReplySendCommand) error {
	rpchost, err := getAccessRPCHost(args.DeviceId)
	if err != nil {
		return err
	}

	return server.RPCCallByHost(rpchost, "Access.SendCommand", args, reply)
}

func getAccessRPCHost(deviceid string) (string, error) {
	args := rpcs.ArgsGetDeviceOnlineStatus{
		Id: deviceid,
	}
	reply := &rpcs.ReplyGetDeviceOnlineStatus{}
	err := server.RPCCallByName(nil, "devicemanager", "DeviceManager.GetDeviceOnlineStatus", args, reply)
	if err != nil {
		return "", err
	}

	return reply.AccessRPCHost, nil
}

type ActorSystem struct {
	rootActor ruleEngine.Ref
}

// 初始化actor system
func (c *Controller) initActorSystem() (*ActorSystem, error) {

	system := ruleEngine.NewDefaultActorSystem(&ruleEngine.DefaultActorSystemConfig{
		SchedulerPoolSize:            5,
		AppDispatcherPoolSize:        4,
		TenantDispatcherPoolSize:     4,
		RuleEngineDispatcherPoolSize: 4,
	})
	_ = system.CreateDispatcher(ruleEngine.APP_DISPATCHER_NAME, ruleEngine.NewPoolDispatcher(5))
	_ = system.CreateDispatcher(ruleEngine.TENANT_DISPATCHER_NAME, ruleEngine.NewPoolDispatcher(4))
	_ = system.CreateDispatcher(ruleEngine.RULE_DISPATCHER_NAME, ruleEngine.NewPoolDispatcher(4))

	// init services
	tenantService := &ruleEngine.TestTenantService{}
	ruleChainService := &ruleEngine.TestRuleChainService{}
	actorContext := ruleEngine.NewSystemContext(system, ruleEngine.SystemContextServiceConfig{
		ClusterService:   c.cluster,
		RuleChainService: ruleChainService,
		TenantService:    tenantService,
		EventService:     NewEventService(),
	})
	appActor, err := system.CreateRootActor(ruleEngine.APP_DISPATCHER_NAME,
		actors.NewAppActorCreator(actorContext))
	if err != nil {
		return nil, err
	}
	actorContext.AppActor = appActor
	server.Log.Debugln("actor system initialized")
	time.Sleep(time.Second * 1)
	appActor.Tell(&ruleEngine.AppInitMsg{})
	c.actorContext = actorContext
	return &ActorSystem{rootActor: appActor}, nil
}

// 启动mq consumers
func (c *Controller) launchConsumer() {
	msgs, err := c.consumer.Pop(100 * time.Millisecond)
	if err != nil {
		server.Log.Error(err)
	}
	for {
		select {
		case msg := <-msgs:
			ruleEngineMsg := &protocol.Message{}
			if err := ruleEngineMsg.Decode(msg.GetData()); err != nil {
				fmt.Println("解析消息失败")
			}
			if c.actorContext != nil {
				c.actorContext.Tell(&ruleEngine.QueueToRuleEngineMsg{
					TenantId: "tenant_1",
					Message:  ruleEngineMsg,
				})
			}
		}
	}
}