import { Action, CompDTO, Params, TopNavDTO } from 'wdBean';
import { LazyDataSource, Logger } from 'wdKit';
import { WDRouterRule } from 'wdRouter';
import { PageComponent } from './PageComponent';
import { ChannelSubscriptionLayout } from './ChannelSubscriptionLayout'
const TAG = 'TopNavigationComponent';

/**
 * 顶部页签导航栏/顶导
 */
@Component
export struct TopNavigationComponent {
  @Prop _currentNavIndex?: number;
  // 顶导当前选中/焦点下标
  @State currentTopNavSelectedIndex: number = 0;
  // 顶导数据
  @State @Watch('onTopNavigationDataUpdated') topNavList: TopNavDTO[] = []
  @State compList: LazyDataSource<CompDTO> = new LazyDataSource();
  readonly MAX_LINE: number = 1;

  build() {
    Column() {
      RelativeContainer() {
        Stack({ alignContent: Alignment.Center }) {

          Image($r('app.media.background_search'))
            .width('100%')
            .height('100%')
            .objectFit(ImageFit.Contain)

          Row() {
            Image($r('app.media.icon_search'))
              .width(18)
              .height(18)

            Text('河南大雪')
              .fontColor($r('app.color.color_B0B0B0'))
              .fontSize($r('app.float.font_size_13'))
          }
          .alignItems(VerticalAlign.Center)
          .justifyContent(FlexAlign.Center)

        }
        .height(30)
        .width(123)
        .id('search')
        .alignRules({ left: { anchor: "__container__", align: HorizontalAlign.Start },
          center: { anchor: "__container__", align: VerticalAlign.Center } })

        Image($r('app.media.icon_ren_min_ri_bao'))
          .width(72)
          .height(29)
          .onClick((event: ClickEvent) => {
            let taskAction: Action = {
              type: 'JUMP_INNER_NEW_PAGE',
              params: {
                pageID: 'E_NEWSPAPER'
              } as Params,
            };
            WDRouterRule.jumpWithAction(taskAction)
          })
          .id('ren_min')
          .alignRules({ middle: { anchor: "__container__", align: HorizontalAlign.Center },
            center: { anchor: "__container__", align: VerticalAlign.Center } })

        Stack({ alignContent: Alignment.Center }) {
          Image($r('app.media.background_read_paper_home'))
            .width('100%')
            .height('100%')
            .objectFit(ImageFit.Contain)
          Row() {
            Image($r('app.media.icon_read_paper_home'))
              .width(18)
              .height(18)
            Text('早晚报')
              .fontColor($r('app.color.color_B0B0B0'))
              .fontSize($r('app.float.font_size_13'))
          }
          .alignItems(VerticalAlign.Center)
          .justifyContent(FlexAlign.Center)

        }
        .height(30)
        .width(124)
        .id('read')
        .alignRules({ right: { anchor: "__container__", align: HorizontalAlign.End },
          center: { anchor: "__container__", align: VerticalAlign.Center } })
        .onClick((event: ClickEvent) => {

          let taskAction: Action = {
            type: 'JUMP_INNER_NEW_PAGE',
            params: {
              pageID: 'MorningEveningPaper'
            } as Params,
          };
          WDRouterRule.jumpWithAction(taskAction)
        })
      }
      .width('100%')
      .height(40)
      .visibility(this._currentNavIndex == 0 ? Visibility.Visible : Visibility.None)
      Stack({alignContent:Alignment.TopEnd}){

        Tabs() {
          ForEach(this.topNavList, (navItem: TopNavDTO, index: number) => {
            TabContent() {
              PageComponent({
                currentTopNavSelectedIndex: $currentTopNavSelectedIndex,
                navIndex: index,
                pageId: navItem.pageId + '',
                channelId: navItem.channelId + ''
              })
            }
            .tabBar(this.tabBarBuilder(navItem, index))
          }, (navItem: TopNavDTO) => JSON.stringify(navItem));
        }
        .barHeight($r('app.float.top_tab_bar_height'))
        .barMode(BarMode.Scrollable)
        .vertical(false)
        .onChange((index: number) => {
          Logger.info(TAG, `onChange index : ${index}`);
          this.currentTopNavSelectedIndex = index;
        })
        
        ChannelSubscriptionLayout()
      }

    }
  }

  @Builder
  tabBarBuilder(item: TopNavDTO, index: number) {
    Column() {
      Text(item.name)
        .fontSize(this.currentTopNavSelectedIndex === index ? $r('app.float.selected_text_size') : $r('app.float.normal_text_size'))
        .fontWeight(this.currentTopNavSelectedIndex === index ? FontWeight.Bold : FontWeight.Normal)
        .fontColor(Color.Black)
        .padding({ top: $r('app.float.top_tab_item_padding_top') })
        .maxLines(this.MAX_LINE)
      Divider()
        .width(16)
        .strokeWidth(2)// 分割线粗细度。
        .padding({ top: 2 })
        .color(Color.Red)
        .opacity(this.currentTopNavSelectedIndex === index ? 1 : 0)
    }
    .hoverEffect(HoverEffect.Highlight)
    .constraintSize({
      minWidth: $r('app.float.top_tab_item_min_width'),
      maxWidth: $r('app.float.top_tab_item_max_width')
    })
    // .backgroundColor(Color.Black)
    .padding({
      left: $r('app.float.top_tab_item_padding_horizontal'),
      right: $r('app.float.top_tab_item_padding_horizontal'),
      bottom: $r('app.float.top_tab_item_padding_bottom')
    })
    .id(`col_tabBar${index}`)
  }

  aboutToAppear() {
    Logger.info(TAG, `aboutToAppear this.topNavList : ${JSON.stringify(this.topNavList)}`);
  }

  onTopNavigationDataUpdated() {
    Logger.info(TAG, `onTopNavigationDataUpdated currentTopNavIndex: ${this.currentTopNavSelectedIndex},topNavList.length:${this.topNavList.length}`);
  }
}