package entity

import (
	"fmt"
	"joylink.club/ecs"
	"joylink.club/rtsssimulation/component"
	"joylink.club/rtsssimulation/consts"
)

// LoadSignals 加载信号机实体
func LoadSignals(w ecs.World) error {
	data := GetWorldData(w)
	signals := data.Repo.SignalList()
	for _, signal := range signals {
		groups := signal.RelayGroups()
		if len(groups) == 1 {
			group := groups[0]
			signalEntry := newSignalEntity(w, signal.Id(), data)
			elecs := group.Components()
			//
			switch group.Code() {
			case consts.SIGNAL_2XH1:
				if le := loadSignal2xh1(w, signal, signalEntry, elecs, data.EntityMap); le != nil {
					return le
				}
			case consts.SIGNAL_3XH1:
				if le := loadSignal3xh1(w, signal, signalEntry, elecs, data.EntityMap); le != nil {
					return le
				}
			case consts.SIGNAL_3XH2:
				if le := loadSignal3xh2(w, signal, signalEntry, elecs, data.EntityMap); le != nil {
					return le
				}
			case consts.SIGNAL_3XH3:
				if le := loadSignal3xh3(w, signal, signalEntry, elecs, data.EntityMap); le != nil {
					return le
				}
			case consts.SIGNAL_3XH4:
				if le := loadSignal3xh4(w, signal, signalEntry, elecs, data.EntityMap); le != nil {
					return le
				}
			case consts.SIGNAL_JDXH:
			case consts.SIGNAL_DCXH:
			case consts.SIGNAL_JCKXH:
			default:
				return fmt.Errorf("id=[%s]的信号机，无效组合类型[%s]", signal.Id(), group.Code())
			}
		} else { //信号机有且只有一个组合类型
			return fmt.Errorf("id=[%s]的信号机须有且只有一个组合类型", signal.Id())
		}
	}
	return nil
}

// 新建信号机实体
func newSignalEntity(w ecs.World, uid string, worldData *component.WorldData) *ecs.Entry {
	entry, ok := worldData.EntityMap[uid]
	if !ok {
		entry = w.Create(component.UidType)
		component.UidType.SetValue(entry, component.Uid{Id: uid})
		worldData.EntityMap[uid] = entry
	}
	return entry
}