package system

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

// Signal3XH4State 电路状态：信号机3XH-4(红-绿-黄) 出站兼道岔防护信号机(三显示不封灯、有单黄显示、无引导)
type Signal3XH4State struct {
	// 物理黄灯，true-亮
	U bool
	// 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
	//开通正线信号继电器，true-吸合
	ZXJ bool
}

// Signal3XH4FilamentState 信号机3XH-2 灯丝状态
type Signal3XH4FilamentState struct {
	// 物理黄灯，true-灯丝正常
	Uf bool
	// 物理绿灯，true-灯丝正常
	Lf bool
	// 物理红灯，true-灯丝正常
	Hf bool
}

func NewSignal3XH4State() *Signal3XH4State {
	return &Signal3XH4State{DDJ: true, DJ: false, LXJ: false, ZXJ: false, U: false, L: false, H: false}
}
func NewSignal3XH4FilamentState() *Signal3XH4FilamentState {
	return &Signal3XH4FilamentState{Uf: false, Lf: false, Hf: false}
}

var Signal3XH4StateComponent = ecs.NewComponentType[Signal3XH4State]()
var Signal3XH4FilamentStateComponent = ecs.NewComponentType[Signal3XH4FilamentState]()
var signal3XH4Query = ecs.NewQuery(filter.Contains(EntityIdentityComponent, Signal3XH4StateComponent))

type Signal3XH4System struct {
}

func NewSignal3XH4System() *Signal3XH4System {
	return &Signal3XH4System{}
}

// Update world 执行
func (me *Signal3XH4System) Update(w ecs.World) {
	signal3XH4Query.Each(w, func(e *ecs.Entry) {
		state := Signal3XH4StateComponent.Get(e)
		filament := Signal3XH4FilamentStateComponent.Get(e)
		//
		me.calculateU(w, state, filament)
		me.calculateL(w, state, filament)
		me.calculateH(w, state, filament)
		me.calculateDJ(w, e, state, filament)
	})
}

// Signal3XH4RelayActionEventProcessor 继电器动作事件处理
var Signal3XH4RelayActionEventProcessor = func(w ecs.World, event sysEvent.RelayActionEvent) {
	//根据event来更新Signal3XH4State中对应继电器的状态
	signal3XH4Query.Each(w, func(e *ecs.Entry) {
		signalModel := FindModelStorage(w).FindById(EntityIdentityComponent.Get(e).Id)
		roler, ok := signalModel.(umi.IRelayCRole)
		if ok {
			if relayGroup, relayName, find := roler.FindCircuitRoleById(event.Id); find {
				if relayGroup == SIGNAL_3XH4 {
					state := Signal3XH4StateComponent.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
					case SIGNAL_ZXJ:
						state.ZXJ = event.Xh
					default:
						panic(fmt.Sprintf("Signal3XH4的模型[%s]中继电器功能名称[%s]无法识别", signalModel.GetId(), relayName))
					}
				} else {
					panic(fmt.Sprintf("Signal3XH4的模型[%s]中继电器组合类型[%s]无法识别", signalModel.GetId(), relayGroup))
				}
			}
		} else {
			panic("Signal3XH4的模型未实现接口umi.IRelayCRoler")
		}
	})
}

func (me *Signal3XH4System) calculateU(w ecs.World, state *Signal3XH4State, filament *Signal3XH4FilamentState) {
	isU := filament.Uf && !state.DDJ && state.LXJ && !state.ZXJ
	state.U = isU
}

func (me *Signal3XH4System) calculateL(w ecs.World, state *Signal3XH4State, filament *Signal3XH4FilamentState) {
	isL := filament.Lf && !state.DDJ && state.LXJ && state.ZXJ
	state.L = isL
}

func (me *Signal3XH4System) calculateH(w ecs.World, state *Signal3XH4State, filament *Signal3XH4FilamentState) {
	isH := filament.Hf && !state.DDJ && !state.LXJ
	state.H = isH
}

func (me *Signal3XH4System) calculateDJ(w ecs.World, e *ecs.Entry, state *Signal3XH4State, filament *Signal3XH4FilamentState) {
	isDJ := filament.Uf && !state.DDJ && state.LXJ && !state.ZXJ ||
		filament.Lf && !state.DDJ && state.LXJ && state.ZXJ ||
		filament.Hf && !state.DDJ && !state.LXJ
	if isDJ != state.DJ {
		if event, ok := createRelayNeedChangeEvent(w, EntityIdentityComponent.Get(e).Id, SIGNAL_3XH3, SIGNAL_DJ, isDJ); ok {
			sysEvent.RelayNeedChangeEventBus.Publish(w, event)
		}
	}
}