import {
  BrowserWindow
} from 'electron'
import windowList from './windowList'
import { IWindowList } from '#/types/enum'

class WindowManager implements IWindowManager {
  private windowMap: Map<IWindowList | string, BrowserWindow> = new Map()
  private windowIdMap: Map<number, IWindowList | string> = new Map()
  create (name: IWindowList) {
    const windowConfig: IWindowListItem = windowList.get(name)!
    if (windowConfig.isValid) {
      if (!windowConfig.multiple) {
        if (this.has(name)) return this.windowMap.get(name)!
      }
      const window = new BrowserWindow(windowConfig.options())
      const id = window.id
      if (windowConfig.multiple) {
        this.windowMap.set(`${name}_${window.id}`, window)
        this.windowIdMap.set(window.id, `${name}_${window.id}`)
      } else {
        this.windowMap.set(name, window)
        this.windowIdMap.set(window.id, name)
      }
      windowConfig.callback(window, this)
      // https://github.com/electron/electron/issues/1594
      window.on('page-title-updated', (evt) => {
        evt.preventDefault()
      })
      window.on('close', () => {
        this.deleteById(id)
      })
      return window
    } else {
      return null
    }
  }

  get (name: IWindowList) {
    if (this.has(name)) {
      return this.windowMap.get(name)!
    } else {
      const window = this.create(name)
      return window
    }
  }

  has (name: IWindowList) {
    return this.windowMap.has(name)
  }

  // useless
  // delete (name: IWindowList) {
  //   const window = this.windowMap.get(name)
  //   if (window) {
  //     this.windowIdMap.delete(window.id)
  //     this.windowMap.delete(name)
  //   }
  // }
  deleteById = (id: number) => {
    const name = this.windowIdMap.get(id)
    if (name) {
      this.windowMap.delete(name)
      this.windowIdMap.delete(id)
    }
  }

  getAvailableWindow () {
    const miniWindow = this.windowMap.get(IWindowList.MINI_WINDOW)
    if (miniWindow && miniWindow.isVisible()) {
      return miniWindow
    } else {
      const settingWindow = this.windowMap.get(IWindowList.SETTING_WINDOW)
      const trayWindow = this.windowMap.get(IWindowList.TRAY_WINDOW)
      return settingWindow || trayWindow || this.create(IWindowList.SETTING_WINDOW)!
    }
  }
}

export default new WindowManager()