CopilotStudioSamples/DirectLineJSSample/index.html at workdayfix · Unity-Billal-mesloub/CopilotStudioSamples · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>DirectLine JS Sample — Copilot Studio</title>
  <style>
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
      background: #f0f2f5;
      height: 100vh;
      display: flex;
      justify-content: center;
      align-items: center;
    }

    /* ── Layout ── */

    .chat {
      display: flex;
      flex-direction: column;
      width: 100%;
      max-width: 640px;
      height: 90vh;
      background: #fff;
      border-radius: 12px;
      box-shadow: 0 2px 12px rgba(0,0,0,0.08);
      overflow: hidden;
    }

    .chat-header {
      padding: 16px 20px;
      background: #0f6cbd;
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .chat-header .status-dot {
      width: 8px; height: 8px;
      border-radius: 50%;
      background: #ffd000;
    }
    .chat-header .status-dot.online { background: #5ec75a; }

    /* ── Messages ── */

    .messages {
      flex: 1;
      overflow-y: auto;
      padding: 16px 20px;
      display: flex;
      flex-direction: column;
      gap: 8px;
    }

    .message {
      max-width: 80%;
      padding: 10px 14px;
      border-radius: 12px;
      font-size: 14px;
      line-height: 1.5;
      word-wrap: break-word;
      animation: fadeIn 0.2s ease;
    }

    .message.agent {
      align-self: flex-start;
      background: #f0f0f0;
      color: #1a1a1a;
      border-bottom-left-radius: 4px;
    }

    .message.user {
      align-self: flex-end;
      background: #0f6cbd;
      color: #fff;
      border-bottom-right-radius: 4px;
    }

    .message a { color: inherit; text-decoration: underline; }
    .message.agent a { color: #0f6cbd; }

    /* ── Markdown inside agent messages ── */

    .message.agent p { margin: 0 0 8px; }
    .message.agent p:last-child { margin-bottom: 0; }
    .message.agent ul, .message.agent ol { margin: 4px 0; padding-left: 20px; }
    .message.agent li { margin: 2px 0; }
    .message.agent h1, .message.agent h2, .message.agent h3 {
      margin: 8px 0 4px; font-size: 14px; font-weight: 700;
    }
    .message.agent code {
      background: rgba(0,0,0,0.06); padding: 1px 4px; border-radius: 3px; font-size: 13px;
    }
    .message.agent pre {
      background: rgba(0,0,0,0.06); padding: 8px; border-radius: 4px; overflow-x: auto;
    }

    /* ── Sources ── */

    .sources {
      margin-top: 8px;
      padding-top: 8px;
      border-top: 1px solid rgba(0,0,0,0.08);
      font-size: 12px;
      display: flex;
      flex-wrap: wrap;
      gap: 4px 12px;
    }
    .sources-label { width: 100%; font-weight: 600; color: #555; margin-bottom: 2px; }
    .sources a {
      color: #0f6cbd; text-decoration: none;
      white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%;
    }
    .sources a:hover { text-decoration: underline; }

    /* ── Suggested actions ── */

    .suggested-actions {
      display: flex; flex-wrap: wrap; gap: 6px; padding: 8px 20px 12px;
    }
    .suggested-actions button {
      padding: 6px 14px;
      border: 1px solid #0f6cbd; border-radius: 16px;
      background: #fff; color: #0f6cbd;
      font-size: 13px; cursor: pointer;
      transition: background 0.15s, color 0.15s;
    }
    .suggested-actions button:hover { background: #0f6cbd; color: #fff; }

    /* ── Typing indicator ── */

    .typing-indicator {
      display: none; align-self: flex-start;
      padding: 10px 14px; background: #f0f0f0;
      border-radius: 12px; border-bottom-left-radius: 4px; gap: 4px;
    }
    .typing-indicator.visible { display: flex; }
    .typing-indicator .dot {
      width: 6px; height: 6px; border-radius: 50%;
      background: #999; animation: bounce 1.4s infinite;
    }
    .typing-indicator .dot:nth-child(2) { animation-delay: 0.2s; }
    .typing-indicator .dot:nth-child(3) { animation-delay: 0.4s; }

    /* ── Input ── */

    .chat-input { display: flex; padding: 12px 16px; border-top: 1px solid #e0e0e0; gap: 8px; }
    .chat-input input {
      flex: 1; padding: 10px 14px;
      border: 1px solid #d0d0d0; border-radius: 8px; font-size: 14px; outline: none;
    }
    .chat-input input:focus { border-color: #0f6cbd; }
    .chat-input input:disabled { background: #f5f5f5; }
    .chat-input button {
      padding: 10px 20px; background: #0f6cbd; color: #fff;
      border: none; border-radius: 8px; font-size: 14px; cursor: pointer;
    }
    .chat-input button:hover { background: #0d5aa7; }
    .chat-input button:disabled { background: #ccc; cursor: default; }

    /* ── Status banner ── */

    .status-banner {
      display: none; padding: 8px 20px;
      background: #fff3cd; color: #664d03; font-size: 13px; text-align: center;
    }
    .status-banner.error { background: #f8d7da; color: #842029; }
    .status-banner.visible { display: block; }

    /* ── Animations ── */

    @keyframes fadeIn {
      from { opacity: 0; transform: translateY(4px); }
      to { opacity: 1; transform: translateY(0); }
    }
    @keyframes bounce {
      0%, 60%, 100% { transform: translateY(0); }
      30% { transform: translateY(-4px); }
    }
  </style>
</head>
<body>

  <div class="chat">
    <div class="chat-header">
      <span class="status-dot" id="statusDot"></span>
      <span>Copilot Studio Agent</span>
    </div>
    <div class="status-banner" id="statusBanner"></div>
    <div class="messages" id="messages">
      <div class="typing-indicator" id="typingIndicator">
        <div class="dot"></div><div class="dot"></div><div class="dot"></div>
      </div>
    </div>
    <div class="suggested-actions" id="suggestedActions"></div>
    <div class="chat-input">
      <input type="text" id="userInput" placeholder="Type a message..." disabled />
      <button id="sendButton" disabled>Send</button>
    </div>
  </div>

  <!-- ─────────────────────────────────────────────────────────────────────────
       Dependencies
       ───────────────────────────────────────────────────────────────────────── -->

  <!-- botframework-directlinejs: Microsoft's open-source DirectLine 3.0 client.
       Same library WebChat uses internally, but here we use it standalone.
       Bundles RxJS 5.x — Observables use chainable .filter()/.subscribe(). -->
  <script src="https://unpkg.com/botframework-directlinejs/dist/directline.js"></script>

  <!-- marked: Markdown → HTML. Copilot Studio sends responses as markdown. -->
  <script src="https://cdn.jsdelivr.net/npm/marked/marked.min.js"></script>

  <!-- Config: copy config.sample.js → config.js and set your token endpoint. -->
  <script src="config.js"></script>

  <script>
    // ==========================================================================
    // DirectLine JS Sample
    //
    // Connects to a Copilot Studio agent using botframework-directlinejs with a
    // fully custom UI — no WebChat dependency.
    //
    // Flow:
    //   1. Fetch token & regional DirectLine endpoint from Copilot Studio
    //   2. Open a DirectLine WebSocket connection
    //   3. Subscribe to activities (messages, typing, events)
    //   4. Send user messages via postActivity()
    // ==========================================================================

    (async function main() {

      // ── DOM references ──

      const messagesEl       = document.getElementById('messages');
      const typingEl         = document.getElementById('typingIndicator');
      const suggestedEl      = document.getElementById('suggestedActions');
      const inputEl          = document.getElementById('userInput');
      const sendBtn          = document.getElementById('sendButton');
      const statusDot        = document.getElementById('statusDot');
      const statusBanner     = document.getElementById('statusBanner');

      const userId = 'user-' + Math.random().toString(36).slice(2, 9);

      // ── UI helpers ──

      function scrollToBottom() {
        messagesEl.scrollTop = messagesEl.scrollHeight;
      }

      function showStatus(text, isError = false) {
        statusBanner.textContent = text;
        statusBanner.className = 'status-banner visible' + (isError ? ' error' : '');
      }

      function hideStatus() {
        statusBanner.className = 'status-banner';
      }

      // ======================================================================
      // STEP 1 — Connect to Copilot Studio via DirectLine
      //
      // Two things are needed before creating a DirectLine connection:
      //   a) A token from the Copilot Studio token endpoint
      //   b) The regional DirectLine URL (agents are deployed regionally —
      //      never hardcode directline.botframework.com)
      //
      // Both are derived from the token endpoint URL.
      // ======================================================================

      showStatus('Connecting...');

      const tokenEndpoint = CONFIG.tokenEndpoint;
      const apiVersion = new URL(tokenEndpoint).searchParams.get('api-version');

      let directLineURL, token;
      try {
        const [regionalSettings, tokenResponse] = await Promise.all([
          fetch(new URL(`/powervirtualagents/regionalchannelsettings?api-version=${apiVersion}`, tokenEndpoint))
            .then(r => { if (!r.ok) throw new Error(`Regional settings: ${r.status}`); return r.json(); }),
          fetch(tokenEndpoint)
            .then(r => { if (!r.ok) throw new Error(`Token: ${r.status}`); return r.json(); }),
        ]);

        directLineURL = regionalSettings.channelUrlsById.directline;
        token = tokenResponse.token;
      } catch (err) {
        showStatus('Failed to connect: ' + err.message, true);
        return;
      }

      // Create the DirectLine connection.
      // The domain is the regional URL + /v3/directline.
      const directLine = new DirectLine.DirectLine({
        token,
        domain: new URL('v3/directline', directLineURL).toString(),
        webSocket: true,
      });

      // ======================================================================
      // STEP 2 — Monitor connection status & trigger greeting
      //
      // connectionStatus$ is a BehaviorSubject that emits:
      //   0 = Uninitialized, 1 = Connecting, 2 = Online,
      //   3 = ExpiredToken,  4 = FailedToConnect, 5 = Ended
      //
      // When the connection goes Online, we send a 'startConversation' event
      // to trigger the agent's Greeting topic. We only do this once — the
      // status can re-emit Online after a reconnect.
      // ======================================================================

      let greetingSent = false;

      directLine.connectionStatus$.subscribe(status => {
        switch (status) {
          case 0: // Uninitialized
          case 1: // Connecting
            showStatus('Connecting...');
            break;

          case 2: // Online
            statusDot.classList.add('online');
            hideStatus();
            inputEl.disabled = false;
            sendBtn.disabled = false;
            inputEl.focus();

            if (!greetingSent) {
              greetingSent = true;
              directLine.postActivity({
                from: { id: userId },
                type: 'event',
                name: 'startConversation',
                locale: navigator.language || 'en-US',
              }).subscribe();
            }
            break;

          case 3: // ExpiredToken
            showStatus('Session expired. Please refresh the page.', true);
            inputEl.disabled = true;
            sendBtn.disabled = true;
            break;

          case 4: // FailedToConnect
            showStatus('Failed to connect. Please refresh the page.', true);
            inputEl.disabled = true;
            sendBtn.disabled = true;
            break;

          case 5: // Ended
            showStatus('Conversation ended.');
            inputEl.disabled = true;
            sendBtn.disabled = true;
            break;
        }
      });

      // ======================================================================
      // STEP 3 — Receive and render activities
      //
      // activity$ emits every activity in the conversation, including echoes
      // of your own messages. Two filters are needed:
      //
      //   1. from.role === 'bot' — only agent activities.
      //      (DirectLine replaces our from.id with a server-assigned UUID,
      //      so matching by from.id doesn't work. from.role is reliable.)
      //
      //   2. Deduplication by activity ID — DirectLine may deliver the same
      //      activity twice (e.g. via WebSocket + polling fallback).
      // ======================================================================

      const seenIds = new Set();

      directLine.activity$
        .filter(activity => {
          if (activity.from.role !== 'bot') return false;
          if (activity.id && seenIds.has(activity.id)) return false;
          if (activity.id) seenIds.add(activity.id);
          return true;
        })
        .subscribe(activity => {
          switch (activity.type) {
            case 'message': {
              hideTyping();
              if (activity.text) {
                addAgentMessage(activity.text, activity.entities);
              }
              if (activity.suggestedActions?.actions) {
                showSuggestedActions(activity.suggestedActions.actions);
              }
              break;
            }
            case 'typing':
              showTyping();
              break;
          }
        });

      // ── Rendering helpers ──

      /**
       * Render an agent message. Copilot Studio sends markdown with
       * reference-style citations ([n] inline + [n]: URL "title" at bottom).
       * The `marked` library resolves these into clickable links automatically.
       *
       * Citation source metadata is in the activity's entities array as a
       * schema.org/Message entity with a "citation" array of Claim objects.
       * We render these as a "Sources" footer below the message.
       */
      function addAgentMessage(text, entities) {
        const el = document.createElement('div');
        el.className = 'message agent';
        el.innerHTML = marked.parse(text);

        // Open all links in a new tab
        el.querySelectorAll('a').forEach(a => {
          a.target = '_blank';
          a.rel = 'noopener noreferrer';
        });

        // Append sources from citation entities
        const messageEntity = entities?.find(e => e.type === 'https://schema.org/Message' && e.citation);
        if (messageEntity?.citation.length) {
          const sourcesEl = document.createElement('div');
          sourcesEl.className = 'sources';
          sourcesEl.innerHTML =
            `<span class="sources-label">Sources</span>` +
            messageEntity.citation.map(c => {
              const name = c.appearance?.name || c.appearance?.abstract || 'Source';
              const url = c.appearance?.url;
              return url
                ? `<a href="${url}" target="_blank" rel="noopener noreferrer">${c.position}. ${name}</a>`
                : `<span>${c.position}. ${name}</span>`;
            }).join('');
          el.appendChild(sourcesEl);
        }

        messagesEl.insertBefore(el, typingEl);
        scrollToBottom();
      }

      function addUserMessage(text) {
        const el = document.createElement('div');
        el.className = 'message user';
        el.textContent = text;
        messagesEl.insertBefore(el, typingEl);
        scrollToBottom();
      }

      let typingTimer = null;

      function showTyping() {
        typingEl.classList.add('visible');
        scrollToBottom();
        // Auto-hide after 5s in case we miss the final message
        clearTimeout(typingTimer);
        typingTimer = setTimeout(() => typingEl.classList.remove('visible'), 5000);
      }

      function hideTyping() {
        clearTimeout(typingTimer);
        typingEl.classList.remove('visible');
      }

      function showSuggestedActions(actions) {
        suggestedEl.innerHTML = '';
        for (const action of actions) {
          const btn = document.createElement('button');
          btn.textContent = action.title;
          btn.addEventListener('click', () => {
            sendMessage(action.value || action.title);
            suggestedEl.innerHTML = '';
          });
          suggestedEl.appendChild(btn);
        }
        scrollToBottom();
      }

      // ======================================================================
      // STEP 4 — Send messages
      //
      // postActivity() returns an RxJS Observable. You must .subscribe()
      // to actually send the request (Observables are lazy).
      // ======================================================================

      function sendMessage(text) {
        if (!text.trim()) return;
        addUserMessage(text);
        suggestedEl.innerHTML = '';

        directLine.postActivity({
          from: { id: userId },
          type: 'message',
          text: text,
        }).subscribe(
          id => console.log('[DirectLine] Sent, id:', id),
          err => console.error('[DirectLine] Send error:', err),
        );
      }

      // ── Wire up input ──

      sendBtn.addEventListener('click', () => {
        sendMessage(inputEl.value);
        inputEl.value = '';
        inputEl.focus();
      });

      inputEl.addEventListener('keydown', e => {
        if (e.key === 'Enter' && !e.shiftKey) {
          e.preventDefault();
          sendMessage(inputEl.value);
          inputEl.value = '';
        }
      });

    })();
  </script>
</body>
</html>