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

<main class="shell py-4 py-lg-5">
  <div class="container-xl">
    @if (!embeddedMode) {
      <section class="hero-panel mb-4 mb-lg-5 p-4 p-lg-5">
        <div class="d-flex flex-column flex-lg-row align-items-start align-items-lg-center justify-content-between gap-4">
          <div class="hero-copy">
            <div class="d-flex align-items-center justify-content-between gap-3">
              <span class="eyebrow mb-0">WebRTC Private Chat</span>
              <button
                class="theme-toggle"
                type="button"
                (click)="cycleTheme()"
                [attr.aria-label]="'Theme mode: ' + theme.mode() + '. Switch to ' + theme.nextMode()"
                [title]="'Theme mode: ' + theme.mode() + '. Click for ' + theme.nextMode()"
              >
                <span class="theme-toggle-icon" aria-hidden="true">{{ theme.emoji() }}</span>
                <span class="theme-toggle-label">{{ theme.mode() }}</span>
              </button>
            </div>
          </div>

          @if (session.currentUser(); as user) {
            <div class="session-card p-3 p-lg-4">
              <div class="text-uppercase small text-secondary mb-2">Signed in</div>
              <div class="h4 mb-1">{{ user.displayName }}</div>
              <div class="text-secondary mb-3">{{ user.username }}</div>
              <div class="small status-pill mb-3">{{ session.status() }}</div>
              <button class="btn btn-accent w-100 mb-2" type="button" (click)="openChatUi()">
                Open chat UI
              </button>
              @if (session.isApprovalAdmin()) {
                <a class="btn btn-outline-light w-100 mb-2" routerLink="/approvals">Approve accounts</a>
              }
              <button class="btn btn-outline-light w-100" type="button" (click)="logout()">Log out</button>
            </div>
          }
        </div>
      </section>
    }

    @if (!session.currentUser()) {
      @if (embeddedMode) {
        <section class="panel p-4 p-lg-5 text-center">
          <h2 class="h3 mb-3">Open Settings to sign in</h2>
          <p class="text-secondary mb-0">
            This embedded client expects authentication and backend configuration from the native app settings.
          </p>
        </section>
      } @else {
        <section class="row g-4 align-items-stretch">
          <div class="col-lg-6">
            <div class="panel p-4 h-100">
              <div class="d-flex justify-content-between align-items-center mb-4">
                <div>
                  <h2 class="h3 mb-1">Connect to the signaling backend</h2>
                  <p class="text-secondary mb-0">Use the Fastify server for authentication and peer discovery.</p>
                </div>
                <span class="badge rounded-pill text-bg-dark">Angular + Bootstrap</span>
              </div>

              <div class="mb-3">
                <label class="form-label" for="serverUrl">Backend URL</label>
                <input
                  id="serverUrl"
                  name="serverUrl"
                  class="form-control form-control-lg"
                  [(ngModel)]="serverUrl"
                  placeholder="http://localhost:3000"
                />
              </div>

              <div class="btn-group mb-4 w-100" role="group" aria-label="Authentication mode">
                <button
                  class="btn"
                  [class.btn-primary]="authMode === 'login'"
                  [class.btn-outline-primary]="authMode !== 'login'"
                  type="button"
                  (click)="authMode = 'login'"
                >
                  Log in
                </button>
                <button
                  class="btn"
                  [class.btn-primary]="authMode === 'register'"
                  [class.btn-outline-primary]="authMode !== 'register'"
                  type="button"
                  (click)="authMode = 'register'"
                >
                  Register
                </button>
              </div>

              <form class="d-grid gap-3" (ngSubmit)="submitAuth()">
                @if (authMode === 'register') {
                  <div>
                    <label class="form-label" for="displayName">Display name</label>
                    <input
                      id="displayName"
                      name="displayName"
                      class="form-control form-control-lg"
                      [(ngModel)]="displayName"
                      placeholder="Operator One"
                    />
                  </div>
                }

                <div>
                  <label class="form-label" for="username">Username</label>
                  <input
                    id="username"
                    name="username"
                    class="form-control form-control-lg"
                    [(ngModel)]="username"
                    placeholder="alice"
                    [attr.autocomplete]="authMode === 'login' ? 'username webauthn' : 'username'"
                  />
                </div>

                <div>
                  <label class="form-label" for="password">Password</label>
                  <input
                    id="password"
                    name="password"
                    type="password"
                    class="form-control form-control-lg"
                    [(ngModel)]="password"
                    placeholder="At least 8 characters"
                    autocomplete="current-password"
                  />
                </div>

                <button class="btn btn-accent btn-lg mt-2" type="submit">
                  {{ authMode === 'login' ? 'Enter chat' : 'Create account' }}
                </button>

                @if (authMode === 'login' && session.webAuthnSupported()) {
                  <div class="text-center small text-secondary mt-1">or</div>
                  <button class="btn btn-outline-light btn-lg" type="button" (click)="loginWithAccessKey()">
                    🔑 Use access key
                  </button>
                  <div class="small text-secondary">
                    Leave the username blank to choose from discoverable passkeys, or enter it to target one account.
                  </div>
                }
              </form>

              @if (session.error()) {
                <div class="alert alert-danger mt-4 mb-0">{{ session.error() }}</div>
              }

              @if (session.notice()) {
                <div class="alert alert-success mt-4 mb-0">{{ session.notice() }}</div>
              }
            </div>
          </div>

          <div class="col-lg-6">
            <div class="panel panel-muted p-4 h-100">
              <h2 class="h3 mb-3">Transport model</h2>
              <div class="info-rail d-grid gap-3">
                <article>
                  <div class="small text-uppercase text-secondary mb-2">1. Authenticate</div>
                  <p class="mb-0">Register or log in against the Fastify API to receive a JWT.</p>
                </article>
                <article>
                  <div class="small text-uppercase text-secondary mb-2">2. Discover peers</div>
                  <p class="mb-0">Open the WebSocket signaling session and receive the online peer list.</p>
                </article>
                <article>
                  <div class="small text-uppercase text-secondary mb-2">3. Exchange data directly</div>
                  <p class="mb-0">Create a WebRTC data channel and send text, JSON, or files peer-to-peer.</p>
                </article>
              </div>
            </div>
          </div>
        </section>
      }
    } @else {
      <section class="row g-4 align-items-stretch">
        <div class="col-lg-5">
          <div class="panel p-4 h-100">
            <div class="d-flex justify-content-between align-items-start gap-3 mb-3">
              <div>
                <h2 class="h3 mb-1">Connection settings</h2>
                <p class="text-secondary mb-0">Manage the backend endpoint used for auth and signaling.</p>
              </div>
              @if (session.isApprovalAdmin()) {
                <a class="btn btn-sm btn-outline-light" routerLink="/approvals">Approvals</a>
              }
            </div>

            @if (!embeddedMode) {
              <label class="form-label" for="connectedServerUrl">Backend URL</label>
              <div class="input-group mb-3">
                <input
                  id="connectedServerUrl"
                  class="form-control"
                  [(ngModel)]="serverUrl"
                  (blur)="applyServerUrl()"
                />
                <button class="btn btn-outline-secondary" type="button" (click)="applyServerUrl()">Apply</button>
              </div>
            } @else {
              <div class="empty-state p-4 text-center text-secondary">
                Backend settings are managed by the native app in embedded mode.
              </div>
            }

            <div class="small status-pill mt-3">{{ session.status() }}</div>

            @if (session.error()) {
              <div class="alert alert-danger mt-4 mb-0">{{ session.error() }}</div>
            }

            @if (session.notice()) {
              <div class="alert alert-success mt-4 mb-0">{{ session.notice() }}</div>
            }
          </div>
        </div>

        <div class="col-lg-7">
          <div class="panel p-4 h-100">
            <section class="access-key-panel">
              <div class="d-flex justify-content-between align-items-start gap-3 mb-3">
                <div>
                  <h3 class="h5 mb-1">Access keys</h3>
                  <p class="small text-secondary mb-0">Register one or more WebAuthn credentials for this account.</p>
                </div>
                <span class="badge rounded-pill text-bg-dark">{{ session.accessKeys().length }}</span>
              </div>

              @if (!embeddedMode && session.webAuthnSupported()) {
                <div class="input-group mb-3">
                  <input
                    class="form-control"
                    [(ngModel)]="accessKeyLabel"
                    placeholder="Laptop passkey"
                  />
                  <button class="btn btn-outline-light" type="button" (click)="registerAccessKey()">Add key</button>
                </div>
              } @else if (!embeddedMode) {
                <div class="alert alert-warning mb-3">This browser does not expose WebAuthn registration APIs.</div>
              } @else {
                <div class="empty-state p-3 text-center text-secondary mb-3">
                  Access keys are managed through the native app in embedded mode.
                </div>
              }

              <div class="d-grid gap-2">
                @if (session.accessKeys().length === 0) {
                  <div class="empty-state p-3 text-center text-secondary">No access keys registered yet.</div>
                }

                @for (key of session.accessKeys(); track key.id) {
                  <article class="access-key-card p-3">
                    <div class="fw-semibold">{{ key.label }}</div>
                    <div class="small text-secondary">Device: {{ key.deviceType }}{{ key.backedUp ? ' / backed up' : '' }}</div>
                    <div class="small text-secondary">Transports: {{ key.transports.length > 0 ? key.transports.join(', ') : 'unspecified' }}</div>
                    <div class="small text-secondary">Added: {{ key.createdAt | date: 'medium' }}</div>
                  </article>
                }
              </div>
            </section>
          </div>
        </div>
      </section>
    }
  </div>
</main>