package system

import (
	"github.com/yohamta/donburi/filter"
	"joylink.club/ecs"
	"joylink.club/rtsssimulation/components"
	"joylink.club/rtsssimulation/state"
)

// 定反操继电器查询
var nrRelayQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.ComSwitchNRRelayOperating))

// 道岔转动查询
var turningQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.ComSwitchTurnOperating))

// 道岔状态查询
var switchStateQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.ComDeviceIdentity, components.ComSwitchState))

// 道岔系统操作
type SwitchSystem struct {
}

func NewSwitchSystem() *SwitchSystem {
	return &SwitchSystem{}
}

// 触发道岔正常转动
// w: 当前世界
// switchId: 道岔id
// turnNormal: true-道岔转动到定位，false-道岔转动到反位
func FireSwitchTurn(w ecs.World, switchId string, turnNormal bool) bool {
	var switchEntry *ecs.Entry = nil
	switchStateQuery.Each(w, func(e *ecs.Entry) {
		if id := components.ComDeviceIdentity.Get(e).Id; id == switchId {
			switchEntry = e
		}
	})
	//
	if nil == switchEntry {
		return false
	}
	//
	switchState := components.ComSwitchState.Get(switchEntry)
	if turnNormal == switchState.NormalTable && !turnNormal == switchState.ReverseTable {
		return true
	}
	//
	nrRelayTime := getSwitchNRDelayTime(switchId)
	if !switchEntry.HasComponent(components.ComSwitchNRRelayOperating) {
		switchEntry.AddComponent(components.ComSwitchNRRelayOperating)
	}
	*(components.ComSwitchNRRelayOperating.Get(switchEntry)) = state.SwitchNRRelayOperating{Start: true, OperateTime: nrRelayTime, Close: true, Normal: turnNormal}
	//
	return true
}

// world 执行
func (me *SwitchSystem) Update(w ecs.World) {
	updateNormalReverseRelay(w)
	updateTurnOperating(w)
}

// 道岔转动动作
func updateTurnOperating(w ecs.World) {
	turningQuery.Each(w, func(e *ecs.Entry) {
		if !e.HasComponent(components.ComSwitchNRRelayOperating) {
			operation := components.ComSwitchTurnOperating.Get(e)
			switchState := components.ComSwitchState.Get(e)
			if operation.Start {
				if operation.OperateTime <= 0 {
					operation.Start = false
					switchState.NormalTable = operation.TurnNormal
					switchState.ReverseTable = !operation.TurnNormal
					switchState.NormalRelay = false
					switchState.ReverseRelay = false
				} else { //此时道岔失表
					operation.OperateTime -= int64(w.Tick())
					switchState.NormalTable = false
					switchState.ReverseTable = false
				}
			}
			if !operation.Start {
				e.RemoveComponent(components.ComSwitchTurnOperating)
			}
		} else {
			e.RemoveComponent(components.ComSwitchTurnOperating)
		}
	})
}

// 定反操继电器操作
func updateNormalReverseRelay(w ecs.World) {
	nrRelayQuery.Each(w, func(e *ecs.Entry) {
		operation := components.ComSwitchNRRelayOperating.Get(e)
		if operation.Start {
			if operation.OperateTime <= 0 {
				operation.Start = false
				//
				switchState := components.ComSwitchState.Get(e)
				if operation.Normal {
					switchState.NormalRelay = operation.Close
				} else {
					switchState.ReverseRelay = operation.Close
				}
				//
				if operation.Close { //触发道岔转动操作
					if !e.HasComponent(components.ComSwitchTurnOperating) {
						e.AddComponent(components.ComSwitchTurnOperating)
					}
					switchId := components.ComDeviceIdentity.Get(e).Id
					turnTime := getSwitchTurnTime(switchId)
					*(components.ComSwitchTurnOperating.Get(e)) = state.SwitchTurnOperating{Start: true, OperateTime: turnTime, TurnNormal: operation.Normal}
				}
			} else {
				operation.OperateTime -= int64(w.Tick())
			}
		}
		if !operation.Start {
			e.RemoveComponent(components.ComSwitchNRRelayOperating)
		}
	})
}

// 获取道岔转动耗时ms
func getSwitchTurnTime(switchId string) int64 {
	return 5000
}

// 获取道岔定操反操继电器耗时ms
func getSwitchNRDelayTime(switchId string) int64 {
	return 2000
}