package operate

import (
	"fmt"

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

// 紧急停车按钮查询
var empQuery *ecs.Query = ecs.NewQuery(filter.Contains(components.DeviceIdentityComponent, components.EmpStateComponent))

func findEmpEntry(world ecs.World, empId string) (*ecs.Entry, error) {
	empEntry := system.QueryEntityById(world, empQuery, empId)
	if empEntry == nil {
		return nil, fmt.Errorf("紧急停车按钮[%s]实体不存在", empId)
	} else {
		return empEntry, nil
	}
}

// 激活紧急停车按钮
func FireEmpPressed(world ecs.World, empId string) error {
	entry, err := findEmpEntry(world, empId)
	if err != nil {
		return err
	}
	components.EmpStateComponent.Get(entry).Pressed = true
	return nil
}

// 复位紧急停车按钮
func FireEmpReset(world ecs.World, empId string) error {
	entry, err := findEmpEntry(world, empId)
	if err != nil {
		return err
	}
	components.EmpStateComponent.Get(entry).Pressed = false
	return nil
}