package system

import (
	"fmt"
	"github.com/yohamta/donburi/filter"
	"joylink.club/ecs"
	sysEvent "joylink.club/rtsssimulation/system/event"
)

// Signal2XH1State 电路状态：**信号机2XH-1(红-绿) 出段(场)信号机 或 **出站区间阻挡信号机
type Signal2XH1State struct {
	// 物理绿灯，true-亮
	L bool
	// 物理红灯，true-亮
	H bool
	// 点灯继电器，true-吸合，常态落下表示逻辑点灯
	DDJ bool
	//灯丝继电器，true-吸合
	DJ bool
	//列车信号继电器，true-吸合
	LXJ bool
}

// Signal2XH1FilamentState 信号机2XH-1 灯丝状态
type Signal2XH1FilamentState struct {
	// 物理绿灯，true-灯丝正常
	Lf bool
	// 物理红灯，true-灯丝正常
	Hf bool
}

func NewSignal2XH1FilamentState() *Signal2XH1FilamentState {
	return &Signal2XH1FilamentState{Lf: true, Hf: true}
}

// NewSignal2XH1CdcState 出段(场)信号机
func NewSignal2XH1CdcState() *Signal2XH1State {
	return &Signal2XH1State{DDJ: false, LXJ: false, DJ: true, L: false, H: true}
}

// NewSignal2XH1CzqzState 出站区间阻挡信号机
func NewSignal2XH1CzqzState() *Signal2XH1State {
	return &Signal2XH1State{DDJ: true, LXJ: false, DJ: false, L: false, H: false}
}

var Signal2XH1StateComponent = ecs.NewComponentType[Signal2XH1State]()
var Signal2XH1FilamentStateComponent = ecs.NewComponentType[Signal2XH1FilamentState]()
var signal2XH1Query = ecs.NewQuery(filter.Contains(EntityIdentityComponent, Signal2XH1StateComponent))

type Signal2XH1System struct {
}

func NewSignal2XH1System() *Signal2XH1System {
	return &Signal2XH1System{}
}

// Update world 执行
func (me *Signal2XH1System) Update(w ecs.World) {
	signal2XH1Query.Each(w, func(entry *ecs.Entry) {
		state := Signal2XH1StateComponent.Get(entry)
		filament := Signal2XH1FilamentStateComponent.Get(entry)
		me.calculateL(state, filament)
		me.calculateH(state, filament)
		me.calculateDJ(w, entry, state, filament)
	})
}

// Signal2XH1RelayActionEventProcessor 继电器动作事件处理
// 将继电器动作的结果同步到系统
var Signal2XH1RelayActionEventProcessor = func(w ecs.World, event sysEvent.RelayActionEvent) {
	//根据event来更新Signal2XH1State中对应继电器的状态
	signal2XH1Query.Each(w, func(e *ecs.Entry) {
		signalModel := FindModelStorage(w).FindById(EntityIdentityComponent.Get(e).Id)
		roler, ok := signalModel.(IRelayCRole)
		if ok {
			if relayGroup, relayName, find := roler.FindCircuitRoleById(event.Id); find {
				if relayGroup == SIGNAL_2XH1 {
					state := Signal2XH1StateComponent.Get(e)
					switch relayName {
					case SIGNAL_DDJ:
						state.DDJ = event.Xh
					case SIGNAL_DJ:
						state.DJ = event.Xh
					case SIGNAL_LXJ:
						state.LXJ = event.Xh
					default:
						panic(fmt.Sprintf("Signal2XH1的模型[%s]中继电器功能名称[%s]无法识别", signalModel.Id(), relayName))
					}
				} else {
					panic(fmt.Sprintf("Signal2XH1的模型[%s]中继电器组合类型[%s]无法识别", signalModel.Id(), relayGroup))
				}
			}
		} else {
			panic("Signal2XH1的模型未实现接口umi.IRelayCRoler")
		}
	})
}

func (me *Signal2XH1System) calculateL(state *Signal2XH1State, filament *Signal2XH1FilamentState) {
	isL := !state.DDJ && state.LXJ && filament.Lf
	state.L = isL
}
func (me *Signal2XH1System) calculateH(state *Signal2XH1State, filament *Signal2XH1FilamentState) {
	isH := !state.DDJ && !state.LXJ && filament.Hf
	state.H = isH
}
func (me *Signal2XH1System) calculateDJ(w ecs.World, e *ecs.Entry, state *Signal2XH1State, filament *Signal2XH1FilamentState) {
	isDJ := !state.DDJ && state.LXJ && filament.Lf || !state.DDJ && !state.LXJ && filament.Hf
	//通知继电器进行动作
	if state.DJ != isDJ {
		if event, ok := createRelayNeedChangeEvent(w, EntityIdentityComponent.Get(e).Id, SIGNAL_2XH1, SIGNAL_DJ, isDJ); ok {
			sysEvent.RelayNeedChangeEventBus.Publish(w, event)
		}
	}
}