package system

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

// 道岔系统操作
type SwitchSystem struct {
	//正常转动道岔系统查询
	turningQuery *ecs.Query
}

func NewSwitchSystem() *SwitchSystem {
	return &SwitchSystem{
		turningQuery: ecs.NewQuery(filter.Contains(components.ComSwitchState, components.ComSwitchTurnOperating)),
	}
}

// API: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
// turnTime: 道岔转动耗时ms
func FireSwitchTurn(w ecs.World, switchId string, turnNormal bool, turnTime int) bool {
	fireQuery := ecs.NewQuery(filter.Contains(components.ComDeviceIdentity, components.ComSwitchTurnOperating))
	//
	var turnOperating *state.SwitchTurnOperating
	fireQuery.Each(w, func(e *ecs.Entry) {
		if id := components.ComDeviceIdentity.Get(e).Id; id == switchId {
			turnOperating = components.ComSwitchTurnOperating.Get(e)
		}
	})
	//
	if nil == turnOperating {
		return false
	}
	//
	turnOperating.TurnNormal = turnNormal
	turnOperating.TurningTime = int64(turnTime)
	turnOperating.StartTurn = true
	return true
}

// world 执行
func (me *SwitchSystem) Update(w ecs.World) {
	//道岔转动操作
	me.turningQuery.Each(w, func(e *ecs.Entry) {
		if turnOperting := components.ComSwitchTurnOperating.Get(e); turnOperting.StartTurn {
			if turnOperting.TurningTime > 0 { //正在转动
				turnOperting.TurningTime -= int64(w.Tick())
			} else { //转动完成
				turnOperting.StartTurn = false
				state := components.ComSwitchState.Get(e)
				if turnOperting.TurnNormal {
					state.Normal = true
					state.Reverse = false
				} else {
					state.Normal = false
					state.Reverse = true
				}
			}
		}
	})
}