import {
	_decorator,
	Component,
	Node,
	Prefab,
	instantiate,
	math,
	Quat,
	Vec3,
} from 'cc'
const { ccclass, property } = _decorator

import PrefabLoader from '../utils/PrefabLoader'
import { GameConfig } from '../../game/config/GameConfig'
import DialogBase from './DialogBase'

@ccclass('LoadingPrefab')
export default class LoadingPrefab extends Component {
	public static instance: Node
	private static prefab: Prefab
	public static LoadingZorderIndex: number = 99
	@property({ type: Node })
	loadingSp: Node | null = null

	private _quatCache: Quat
	private _vec3Cache: Vec3
	onLoad() {
		this._quatCache = new Quat()
		this._vec3Cache = new Vec3()
	}

	start() {}

	public static close() {
		if (!LoadingPrefab.instance) {
			return
		}
		LoadingPrefab.instance.removeFromParent()
		LoadingPrefab.instance.destroy()
		LoadingPrefab.instance = null
	}

	public static preLoad(): Promise<void> {
		return new Promise((resolve, reject) => {
			PrefabLoader.loadPrefab(
				GameConfig.GameName + '/' + 'share/uicomponent/LoadingPrefab',
				(loadedResource) => {
					LoadingPrefab.prefab = loadedResource
					resolve()
				}
			)
		})
	}

	private static createLoadingPrefab(parentNode: Node = null) {
		let dialogNode: Node = instantiate(LoadingPrefab.prefab)
		LoadingPrefab.instance = dialogNode
		if (!parentNode) {
			parentNode = DialogBase.GetRootCanvas()
		}
		parentNode.insertChild(dialogNode, LoadingPrefab.LoadingZorderIndex)
		dialogNode.setPosition(0, 0)
	}

	public static async show(parentNode: Node = null) {
		if (LoadingPrefab.instance) return
		if (!LoadingPrefab.prefab) {
			await LoadingPrefab.preLoad()
		}
		this.createLoadingPrefab(parentNode)
	}

	update(dt) {
		this.loadingSp.getRotation(this._quatCache)
		Quat.toEuler(this._vec3Cache, this._quatCache)
		this._vec3Cache.z += 10
		this.loadingSp.setRotationFromEuler(this._vec3Cache)
		if (this._vec3Cache.z >= 360) {
			this.loadingSp.getRotation(Quat.IDENTITY)
		}
	}

	public static clear() {
		LoadingPrefab.instance = null
		LoadingPrefab.prefab = null
	}
}