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

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

import DialogBase from './DialogBase'
import Progress from './Progress'

const { ccclass, property } = _decorator

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

  onLoad() {}

  start() {}

  public updateProgress(completedCount: number, totalCount: number, item: any = null) {
    this.progressNode
      .getComponent(Progress)
      .updateProgress(completedCount, totalCount, '消耗流量,预下载所有"鱼"类中,请耐心等待...')
  }

  public static updateLoading(completedCount: number, totalCount: number, item: any = null) {
    if (LoadingScenePrefab.instance) {
      const nodeTs: LoadingScenePrefab =
        LoadingScenePrefab.instance.getComponent(LoadingScenePrefab)
      if (nodeTs) nodeTs.updateProgress(completedCount, totalCount, item)
    }
  }

  private static createPrefab(parentNode: Node = null) {
    const dialogNode: Node = instantiate(LoadingScenePrefab.prefab)
    LoadingScenePrefab.instance = dialogNode
    if (!parentNode) parentNode = DialogBase.GetRootCanvas()

    parentNode.insertChild(dialogNode, LoadingScenePrefab.LoadingZorderIndex)
    dialogNode.setPosition(0, 0)
  }

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

  public static close() {
    if (!LoadingScenePrefab.instance) return

    LoadingScenePrefab.instance.destroy()
    LoadingScenePrefab.instance = null
  }

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

    this.createPrefab(parentNode)
  }

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