import { Component, Node, Prefab, Quat, Vec3, _decorator, instantiate } from 'cc'

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

import DialogBase from './DialogBase'

const { ccclass, property } = _decorator

@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) {
    const 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
  }
}