package message_server

import (
	"fmt"
	"time"

	"joylink.club/ecs"
	"joylink.club/rtsssimulation/component"
	"joylink.club/rtsssimulation/entity"

	"google.golang.org/protobuf/proto"
	"joylink.club/bj-rtsts-server/message_server/ms_api"
	"joylink.club/bj-rtsts-server/ts/protos/graphicData"
	"joylink.club/bj-rtsts-server/ts/protos/state"
	"joylink.club/bj-rtsts-server/ts/simulation/wayside/memory"
)

// PSL或门控箱消息服务
type PslMs struct {
	vs    *memory.VerifySimulation
	mapId int32
}

func NewPSLMs(vs *memory.VerifySimulation, mapId int32) *PslMs {
	return &PslMs{vs: vs, mapId: mapId}
}

func (p *PslMs) GetChannel() string {
	return SimulationPslTopic
	// return "simulation-psl-%s_%d_%s-status"
}

func (p *PslMs) GetInterval() time.Duration {
	return 200 * time.Millisecond
}

func (p *PslMs) OnTick() ([]*ms_api.TopicMsg, error) {
	var msgArr []*ms_api.TopicMsg
	mapData := memory.QueryGiData[*graphicData.RtssGraphicStorage](p.mapId)
	for _, box := range mapData.GateBoxs {
		did := memory.GetMapElementId(box.Common)
		channel := p.handlerPSLChannelName(did)
		state, err := p.collectGateBoxPSLState(box)
		if err != nil {
			return nil, err
		}
		b, err := proto.Marshal(state)
		if err != nil {
			return nil, fmt.Errorf("PSL设备状态消息服务数据序列化失败: %s", err)
		}
		msgArr = append(msgArr, ms_api.NewTopicMsg(channel, b))
	}
	return msgArr, nil
}

func (p *PslMs) OnError(err error) {}

// 处理订阅通道名称
func (p *PslMs) handlerPSLChannelName(gateBoxId string) string {
	return fmt.Sprintf(SimulationPslTopic, p.vs.SimulationId, p.mapId, gateBoxId)
}

func (p *PslMs) collectGateBoxPSLState(box *graphicData.GatedBox) (*state.PushedDevicesStatus, error) {
	world := p.vs.World
	did := memory.GetMapElementId(box.Common)
	uidStructure := memory.QueryUidStructure[*memory.StationUidStructure](p.mapId)
	boxUid := uidStructure.GateBoxIds[did].Uid
	mkxEntry, ok := entity.GetEntityByUid(world, boxUid)
	if !ok {
		return nil, fmt.Errorf("[id:%s]的门控箱实体找不到", boxUid)
	}
	mkx := component.MkxType.Get(mkxEntry)
	var buttonStateArr []*state.ButtonState
	if ok {
		btnArr := []*ecs.Entry{mkx.PCB, mkx.POB, mkx.PAB}
		for _, btn := range btnArr {
			if btn == nil {
				continue
			}
			buttonStateArr = append(buttonStateArr, &state.ButtonState{
				Id:     component.UidType.Get(btn).Id,
				Down:   component.BitStateType.Get(btn).Val,
				Active: component.BitStateType.Get(btn).Val,
			})
		}
	}
	return &state.PushedDevicesStatus{
		All: true,
		AllStatus: &state.AllDevicesStatus{
			ButtonState: buttonStateArr,
		},
	}, nil
}