PrivateChat/client/src/app/chat-page.component.html

<main class="chat-shell py-4">
  <div class="container-lg">
    <section class="chat-page panel p-3 p-lg-4">
      <div class="chat-header d-flex flex-column flex-lg-row justify-content-between align-items-start align-items-lg-center gap-3 mb-4">
        <div>
          <a class="back-link" routerLink="/">← Back to dashboard</a>
          @if (currentUser(); as connectedUser) {
            <h1 class="h3 mb-1 mt-2">{{ connectedUser.displayName }}</h1>
            <div class="status-indicators mt-2">
              <div class="status-indicator">
                <span class="status-led" [class.status-led-ok]="indicatorTone(session.signalingState()) === 'ok'" [class.status-led-connecting]="indicatorTone(session.signalingState()) === 'connecting'" [class.status-led-offline]="indicatorTone(session.signalingState()) === 'offline'"></span>
                <span>Signaling</span>
              </div>
              <button
                class="status-indicator status-indicator-action"
                type="button"
                [disabled]="!canReconnectWebRtc()"
                [attr.aria-label]="canReconnectWebRtc() ? 'Open WebRTC channel' : 'WebRTC channel status'"
                [title]="canReconnectWebRtc() ? 'Open WebRTC channel' : 'WebRTC channel status'"
                (click)="ensureConnection()"
              >
                <span class="status-led" [class.status-led-ok]="indicatorTone(webRtcState()) === 'ok'" [class.status-led-connecting]="indicatorTone(webRtcState()) === 'connecting'" [class.status-led-offline]="indicatorTone(webRtcState()) === 'offline'"></span>
                <span>WebRTC</span>
              </button>
            </div>
          } @else {
            <h1 class="h3 mb-1 mt-2">Not signed in</h1>
            <p class="small text-secondary mb-0">Return to the dashboard and sign in again.</p>
          }
        </div>
      </div>

      <div class="chat-layout">
        <aside class="peer-sidebar">


          <div class="peer-list">
            @if (session.peers().length === 0) {
              <div class="empty-chat empty-peers">
                No peers are currently connected.
              </div>
            }

            @for (connectedPeer of session.peers(); track connectedPeer.id) {
              <button
                class="peer-tile text-start"
                type="button"
                [class.peer-tile-active]="connectedPeer.id === peerId()"
                (click)="switchPeer(connectedPeer.id)"
              >
                <div class="peer-tile-row">
                  <span class="peer-tile-title">
                    <span class="fw-semibold">{{ connectedPeer.displayName }}</span>
                    @if (isPeerTyping(connectedPeer.id)) {
                      <span class="peer-typing-dots" aria-label="Typing">
                        <span></span>
                        <span></span>
                        <span></span>
                      </span>
                    }
                  </span>
                  <span
                    class="status-led peer-tile-status"
                    [class.status-led-ok]="connectedPeer.channelState === 'open' || connectedPeer.connectionState === 'connected'"
                    [class.status-led-offline]="connectedPeer.channelState !== 'open' && connectedPeer.connectionState !== 'connected'"
                    [attr.aria-label]="
                      connectedPeer.channelState === 'open' || connectedPeer.connectionState === 'connected'
                        ? 'Connected'
                        : 'Disconnected'
                    "
                  ></span>
                </div>
              </button>
            }
          </div>
        </aside>

        <div class="chat-main">
          <div class="conversation">
            @if (conversation().length === 0) {
              <div class="empty-chat">
                No text messages yet. The chat page is ready as soon as the peer channel opens.
              </div>
            }

            @for (entry of conversation(); track entry.id) {
              <article
                class="bubble"
                [class.bubble-incoming]="entry.direction === 'incoming'"
                [class.bubble-outgoing]="entry.direction === 'outgoing'"
                [class.bubble-system]="entry.direction === 'system'"
              >
                <button
                  class="bubble-delete"
                  type="button"
                  (click)="deleteMessage(entry)"
                  title="Delete message"
                  aria-label="Delete message"
                >
                  ×
                </button>
                <div class="bubble-meta">
                  <span>{{ entry.authorLabel }}</span>
                  <time>{{ entry.createdAt | date: 'shortTime' }}</time>
                </div>

                @switch (entry.kind) {
                  @case ('text') {
                    <p class="mb-0">{{ entry.text }}</p>
                  }
                  @case ('json') {
                    <pre class="bubble-json mb-0">{{ entry.payload | json }}</pre>
                  }
                  @case ('file') {
                    <div class="d-grid gap-3">
                      @if (isImageEntry(entry)) {
                        <img
                          class="bubble-image"
                          [src]="entry.downloadUrl"
                          [alt]="entry.fileName || 'Shared image'"
                        />
                      }

                      <div>
                        <div class="fw-semibold">{{ entry.fileName }}</div>
                        @if (entry.fileSize) {
                          <div class="small text-secondary-emphasis">{{ entry.fileSize | number }} bytes</div>
                        }
                      </div>

                      @if (entry.downloadUrl) {
                        <a class="bubble-download" [href]="entry.downloadUrl" [download]="entry.fileName">Download</a>
                      }
                    </div>
                  }
                  @default {
                    <p class="mb-0">{{ entry.text }}</p>
                  }
                }
              </article>
            }
          </div>

          <div class="composer">
            @if (peer(); as selectedPeer) {
              <input
                #fileInput
                class="composer-file-input"
                type="file"
                [disabled]="selectedPeer.channelState !== 'open'"
                (change)="sendFile(selectedPeer.id, fileInput)"
              />
              <button
                class="composer-plus"
                type="button"
                [disabled]="selectedPeer.channelState !== 'open'"
                (click)="fileInput.click()"
                title="Send file"
                aria-label="Send file"
              >
                +
              </button>
            }

            <textarea
              class="form-control composer-textarea"
              rows="3"
              [(ngModel)]="messageText"
              (ngModelChange)="handleMessageTextChange($event)"
              (keydown.enter)="handleComposerEnter($event)"
              [disabled]="!session.isSelectedPeerReady()"
              placeholder="Write a text message to your peer"
            ></textarea>
            <button
              class="send-emoji"
              type="button"
              [disabled]="!session.isSelectedPeerReady()"
              (click)="sendMessage()"
              title="Send message"
              aria-label="Send message"
            >
              ✅
            </button>
          </div>
        </div>
      </div>
    </section>
  </div>
</main>