import { inject, injectable, postConstruct } from 'inversify';
import { Command, CommandContribution, CommandRegistry } from '@gedit/command';
import { nls } from '@gedit/nls';
import { MenuContribution, MenuModelRegistry, MenuPath, SelectionService } from '@gedit/application-common';
import {
  FrontendApplicationContribution,
  KeybindingContribution,
  KeybindingRegistry,
  OpenerService,
  TabBarToolbarContribution,
  TabBarToolbarRegistry,
} from '@gedit/application/lib/browser';
import { NavigatorResourceProvider } from './navigator-resource-provider';
import { NavigatorService } from './navigator-service';

/**
 * 导航栏注册的命令
 */
export namespace NavigatorCommands {
  const NAVIGATOR_CATEGORY = 'Navigator2d';
  export const REVEAL_IN_HIERACHY: Command = {
    id: 'navigagtor2d.reveal',
    category: NAVIGATOR_CATEGORY,
    label: nls.localize('navigagtor2d.reveal', 'Reveal in Navigator')
  };
  /**
   * 刷新
   */
  export const REFRESH_NAVIGATOR: Command = {
    id: 'navigator2d.refresh',
    category: 'File',
    label: 'Refresh in Explorer',
    iconClass: 'refresh'
  };
  /**
   * 折叠所有
   */
  export const COLLAPSE_ALL: Command = {
    id: 'navigator2d.collapse.all',
    category: 'File',
    label: 'Collapse Folders in Explorer',
    iconClass: 'theia-collapse-all-icon'
  };
}

/**
 * 导航栏工具栏点击更多的操作命令
 */
export namespace NavigatorMoreToolbarGroups {
  export const NEW_OPEN = '1_navigator2d_new_open';
}

export const NAVIGATOR_CONTEXT_MENU: MenuPath = ['navigator2d-context-menu'];

/**
 * 导航栏右键菜单
 */
export namespace NavigatorContextMenu {
  export const NAVIGATION = [...NAVIGATOR_CONTEXT_MENU, 'navigation'];
  export const CLIPBOARD = [...NAVIGATOR_CONTEXT_MENU, '5_cutcopypaste'];
  export const MODIFICATION = [...NAVIGATOR_CONTEXT_MENU, '7_modification'];
}

@injectable()
export class NavigatorContribution implements FrontendApplicationContribution, CommandContribution, KeybindingContribution, MenuContribution, TabBarToolbarContribution {
  @inject(NavigatorService) navigatorService: NavigatorService;
  @inject(SelectionService) selectionService: SelectionService;
  @inject(OpenerService) protected readonly openerService: OpenerService;
  @inject(NavigatorResourceProvider) resourceProivder: NavigatorResourceProvider;
  @inject(CommandRegistry) protected readonly commandRegistry: CommandRegistry;
  @inject(TabBarToolbarRegistry) protected readonly tabbarToolbarRegistry: TabBarToolbarRegistry;

  @postConstruct()
  protected async init(): Promise<void> {
    // DEPRECATED
    // this.selectionService.onSelectionChanged((selected: object) => this.navigatorService.selectTreeNode(selected));
  }

  onStart(): void {
  }

  /**
   * 注册命令
   * @param commands
   */
  registerCommands(commands: CommandRegistry): void {
    // TODO创建场景和创建组件命令移动到mindmap管理
    // commands.registerCommand(NavigatorCommands.ADD_SCENE, {
    //   isEnabled: () => !!this.treeModel.getRootNode(),
    //   execute: async () => {
    //     const dialog = new NavigatorInputDialog({
    //       title: '新建场景',
    //       parentUri: this.treeModel.getRootNode()!.uri
    //     })
    //     dialog.open().then(async name => {
    //       if (name) {
    //         const uri = await this.resourceProivder.createSceneNode(name)
    //         if (uri) {
    //           await this.openerService.open(uri)
    //           await this.selectFileNode(uri)
    //         }
    //       }
    //     })
    //   }
    // })
    // commands.registerCommand(NavigatorCommands.ADD_COMPONENT, {
    //   isEnabled: () => !!this.treeModel.getRootNode(),
    //   execute: async () => {
    //     const dialog = new NavigatorInputDialog({
    //       title: '新建组件',
    //       parentUri: this.treeModel.getRootNode()!.uri
    //     })
    //     dialog.open().then(async name => {
    //       if (name) {
    //         const uri = await this.resourceProivder.createComponentNode(name)
    //         if (uri) {
    //           await this.openerService.open(uri)
    //           await this.selectFileNode(uri)
    //         }
    //       }
    //     })
    //   }
    // })
    // commands.registerCommand(NavigatorCommands.REFRESH_NAVIGATOR, {
    //   execute: widget => this.withWidget(widget, () => true),
    //   isEnabled: widget => this.withWidget(widget, () => true),
    //   isVisible: widget => this.withWidget(widget, () => true),
    // });
  }

  /**
   * 注册菜单
   * @param menus
   */
  registerMenus(menus: MenuModelRegistry): void {
    // menus.registerMenuAction(NavigatorContextMenu.NAVIGATION, {
    //  commandId: NavigatorCommands.ADD_SCENE.id,
    //  label: NavigatorCommands.ADD_SCENE.label,
    // });
    // menus.registerMenuAction(NavigatorContextMenu.NAVIGATION, {
    //  commandId: NavigatorCommands.ADD_COMPONENT.id,
    //  label: NavigatorCommands.ADD_COMPONENT.label,
    // });
    // menus.registerMenuAction(NavigatorContextMenu.CLIPBOARD, {
    //  commandId: CommonCommands.COPY.id,
    //  order: 'a'
    // })
    // menus.registerMenuAction(NavigatorContextMenu.CLIPBOARD, {
    //  commandId: CommonCommands.PASTE.id,
    //  order: 'b'
    // })
    // menus.registerMenuAction(NavigatorContextMenu.MODIFICATION, {
    //  commandId: WorkspaceCommands.FILE_RENAME.id
    // })
    // menus.registerMenuAction(NavigatorContextMenu.MODIFICATION, {
    //  commandId: WorkspaceCommands.FILE_DELETE.id
    // })
    // menus.registerMenuAction(NavigatorContextMenu.MODIFICATION, {
    //  commandId: WorkspaceCommands.FILE_DUPLICATE.id
    // })

  }

  /**
   * 注册快捷键
   * @param keybindings
   */
  registerKeybindings(keybindings: KeybindingRegistry): void {
  }

  /**
   * 注册快捷菜单
   */
  registerToolbarItems(toolbars: TabBarToolbarRegistry): void {
    /*
    toolbars.registerItem({
      id: NavigatorCommands.REFRESH_NAVIGATOR.id,
      command: NavigatorCommands.REFRESH_NAVIGATOR.id,
      tooltip: nls.localize('view.refresh', 'Refresh Explorer'),
      priority: 0,
    })
    this.registerMoreToolbarItem({
      id: NavigatorCommands.ADD_SCENE.id,
      command: NavigatorCommands.ADD_SCENE.id,
      tooltip: NavigatorCommands.ADD_SCENE.label,
      group: NavigatorMoreToolbarGroups.NEW_OPEN,
    })
    this.registerMoreToolbarItem({
      id: NavigatorCommands.ADD_COMPONENT.id,
      command: NavigatorCommands.ADD_COMPONENT.id,
      tooltip: NavigatorCommands.ADD_COMPONENT.label,
      group: NavigatorMoreToolbarGroups.NEW_OPEN,
    })
    */
  }

  /**
   * Register commands to the `More Actions...` navigator toolbar item.
   */
  // public registerMoreToolbarItem = (item: Mutable<TabBarToolbarItem>) => {
  //   const commandId = item.command;
  //   const id = 'navigator2d.tabbar.toolbar.' + commandId;
  //   const command = this.commandRegistry.getCommand(commandId);
  //   this.commandRegistry.registerCommand({id, iconClass: command && command.iconClass}, {
  //     execute: (w, ...args) => w instanceof NavigatorViewContainer
  //       && this.commandRegistry.executeCommand(commandId, ...args),
  //     isEnabled: (w, ...args) => w instanceof NavigatorViewContainer
  //       && this.commandRegistry.isEnabled(commandId, ...args),
  //     isVisible: (w, ...args) => w instanceof NavigatorViewContainer
  //       && this.commandRegistry.isVisible(commandId, ...args),
  //     isToggled: (w, ...args) => w instanceof NavigatorViewContainer
  //       && this.commandRegistry.isToggled(commandId, ...args),
  //   });
  //   item.command = id;
  //   this.tabbarToolbarRegistry.registerItem(item);
  // };
  //
  // protected withWidget(widget: Widget, cb: (navigator: NavigatorViewContainer) => boolean): boolean {
  //   if (widget && widget instanceof NavigatorViewContainer && widget.id === NAVIGATOR_VIEW_CONTAINER_ID) {
  //     return cb(widget);
  //   }
  //   return false;
  // }
}