package operate

import (
	"fmt"

	"github.com/yohamta/donburi/filter"
	"joylink.club/ecs"
	"joylink.club/rtsssimulation/components"
	"joylink.club/rtsssimulation/system"
)

var towPosButtonsQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.DeviceIdentityComponent, components.TowPositionButtonStateComponent))

// 档位变换过程中指令
// 该指令执行后，按钮处于未知状态
func FireTowPositionButtonMoving(w ecs.World, buttonId string) error {
	entry := system.QueryEntityById(w, towPosButtonsQuery, buttonId)
	if nil == entry {
		return fmt.Errorf("两档位按钮[%s]实体不存在", buttonId)
	}
	//
	state := components.TowPositionButtonStateComponent.Get(entry)
	state.Pos1 = false
	state.Pos2 = false
	//
	return nil
}

// 档位变换到达pos1指令
// 执行该指令后，按钮处于pos1稳定态
func FireTowPositionButtonArrivedPos1(w ecs.World, buttonId string) error {
	return fireTowPositionButtonArrivedPos(w, buttonId, true)
}

// 档位变换到达pos2指令
// 执行该指令后，按钮处于pos2稳定态
func FireTowPositionButtonArrivedPos2(w ecs.World, buttonId string) error {
	return fireTowPositionButtonArrivedPos(w, buttonId, false)
}
func fireTowPositionButtonArrivedPos(w ecs.World, buttonId string, arrivedPos1 bool) error {
	entry := system.QueryEntityById(w, towPosButtonsQuery, buttonId)
	if nil == entry {
		return fmt.Errorf("两档位按钮[%s]实体不存在", buttonId)
	}
	//
	state := components.TowPositionButtonStateComponent.Get(entry)
	if arrivedPos1 {
		state.Pos1 = true
		state.Pos2 = false
	} else {
		state.Pos1 = false
		state.Pos2 = true
	}
	//
	return nil
}