'use strict';

const { TemplateView, AvatarView, text } = require('hydrogen-view-sdk');
const AvatarViewModel = require('../viewmodels/AvatarViewModel');

const safeSearchBlockedRoomTitle = 'Blocked by safe search';
const safeSearchBlockedRoomDescription =
  'This room was blocked because safe search is turned on and may contain explicit content. Turn off safe search to view this room.';

const blockedBySafeSearchAvatarViewModel = new AvatarViewModel({
  avatarTitle: 'x',
  avatarLetterString: 'x',
  entityId: 'x',
});

class RoomCardView extends TemplateView {
  render(t, vm) {
    const avatarViewModel = new AvatarViewModel({
      homeserverUrlToPullMediaFrom: vm.homeserverUrlToPullMediaFrom,
      avatarUrl: vm.mxcAvatarUrl,
      avatarTitle: vm.name || vm.canonicalAlias || vm.roomId,
      avatarLetterString:
        vm.name ||
        // Skip to the first letter after the `#` sigil from the alias
        vm.canonicalAlias?.[1] ||
        // Skip to the first letter after the `!` sigil from the room ID
        vm.roomId?.[1],
      entityId: vm.roomId,
    });

    // Pluralize based on number of members in the room
    let memberDisplay = `${vm.numJoinedMembers} member`;
    if (vm.numJoinedMembers > 1) {
      memberDisplay = `${vm.numJoinedMembers} members`;
    }

    const aliasOrRoomId = vm.canonicalAlias || vm.roomId;
    const displayName = vm.name || aliasOrRoomId;

    return t.li(
      {
        className: {
          RoomCardView: true,
          blockedBySafeSearch: (vm) => vm.blockedBySafeSearch,
        },
        'data-room-id': vm.roomId,
        'data-testid': 'room-card',
      },
      [
        t.a(
          {
            className: 'RoomCardView_header',
            href: (vm) => {
              if (vm.blockedBySafeSearch) {
                // Omit the href so the link is not clickable when it's blocked by
                // safe search
                return false;
              }

              return vm.archiveRoomUrl;
            },
            // Since this is the same button as the "View" link, just tab to
            // that instead
            tabindex: -1,
          },
          [
            t.mapView(
              (vm) => vm.blockedBySafeSearch,
              (blockedBySafeSearch) => {
                if (blockedBySafeSearch) {
                  return new AvatarView(blockedBySafeSearchAvatarViewModel, 24);
                }
                return new AvatarView(avatarViewModel, 24);
              }
            ),
            t.if(
              (vm) => vm.name,
              (t /*, vm*/) =>
                t.h4(
                  {
                    className: 'RoomCardView_headerTitle',
                    // We add a title so a tooltip shows the full name on hover
                    title: (vm) => {
                      if (vm.blockedBySafeSearch) {
                        return safeSearchBlockedRoomTitle;
                      }

                      return displayName;
                    },
                  },
                  [
                    (vm) => {
                      if (vm.blockedBySafeSearch) {
                        return safeSearchBlockedRoomTitle;
                      }

                      return displayName;
                    },
                  ]
                )
            ),
          ]
        ),
        t.if(
          (vm) => !vm.blockedBySafeSearch,
          (t /*, vm*/) =>
            t.a(
              {
                className: 'RoomCardView_alias',
                href: vm.archiveRoomUrl,
                // Since this is the same button as the "View" link, just tab to
                // that instead
                tabindex: -1,
              },
              [aliasOrRoomId]
            )
        ),
        t.if(
          (vm) => vm.blockedBySafeSearch,
          (t /*, vm*/) =>
            t.p({ className: 'RoomCardView_blockedBySafeSearchTopic' }, [
              safeSearchBlockedRoomDescription,
            ])
        ),
        t.if(
          (vm) => !vm.blockedBySafeSearch,
          (t /*, vm*/) =>
            t.p({ className: 'RoomCardView_topic', title: vm.topic || null }, [vm.topic || ''])
        ),
        t.div({ className: 'RoomCardView_footer' }, [
          t.div({ className: 'RoomCardView_footerInner' }, [
            t.div({}, [
              t.if(
                (vm) => !vm.blockedBySafeSearch,
                (/*t , vm*/) => text(memberDisplay)
              ),
            ]),
            t.a(
              {
                className: 'RoomCardView_viewButtonWrapperLink',
                href: (vm) => {
                  if (vm.blockedBySafeSearch) {
                    // Omit the href so the link is not clickable when it's blocked by
                    // safe search
                    return false;
                  }

                  return vm.archiveRoomUrl;
                },
                title: (vm) => {
                  if (vm.blockedBySafeSearch) {
                    return `Turn off safe search to view this room`;
                  }

                  return `View the ${displayName} room`;
                },
              },
              t.span(
                {
                  className: 'RoomCardView_viewButton',
                  disabled: (vm) => vm.blockedBySafeSearch,
                },
                ['View']
              )
            ),
          ]),
        ]),
      ]
    );
  }
}

module.exports = RoomCardView;