botui/ui/suite/chat/chat.html

<link rel="stylesheet" href="chat/chat.css" />

<div class="chat-layout" id="chat-app">
    <main id="messages"></main>

    <footer>
        <div class="suggestions-container" id="suggestions"></div>
        <form class="input-container" id="chatForm">
            <input
                name="content"
                id="messageInput"
                type="text"
                placeholder="Message..."
                data-i18n-placeholder="chat-placeholder"
                autofocus
            />
            <button
                type="button"
                id="voiceBtn"
                title="Voice"
                data-i18n-title="chat-voice"
            >
                🎤
            </button>
            <button
                type="submit"
                id="sendBtn"
                title="Send"
                data-i18n-title="chat-send"
            >
                ↑
            </button>
        </form>
    </footer>
    <button class="scroll-to-bottom" id="scrollToBottom">↓</button>
</div>

<script>
    (function () {
        "use strict";

        // ==========================================================================
        // NOTIFICATION HELPER - Uses GBAlerts bell system
        // ==========================================================================
        function notify(message, type) {
            type = type || "info";
            if (window.GBAlerts) {
                if (type === "success") {
                    window.GBAlerts.info("Chat", message);
                } else if (type === "error") {
                    window.GBAlerts.warning("Chat", message);
                } else {
                    window.GBAlerts.info("Chat", message);
                }
            }
        }

        // ==========================================================================
        // CONFIGURATION
        // ==========================================================================
        var WS_BASE_URL =
            window.location.protocol === "https:" ? "wss://" : "ws://";
        var WS_URL = WS_BASE_URL + window.location.host;

        var MessageType = {
            EXTERNAL: 0,
            USER: 1,
            BOT_RESPONSE: 2,
            CONTINUE: 3,
            SUGGESTION: 4,
            CONTEXT_CHANGE: 5,
        };

        // ==========================================================================
        // STATE
        // ==========================================================================
        var ws = null;
        var currentSessionId = null;
        var currentUserId = null;
        var currentBotId = "default";
        var isStreaming = false;
        var streamingMessageId = null;
        var currentStreamingContent = "";
        var reconnectAttempts = 0;
        var maxReconnectAttempts = 5;

        // ==========================================================================
        // MESSAGE FUNCTIONS
        // ==========================================================================
        function escapeHtml(text) {
            var div = document.createElement("div");
            div.textContent = text;
            return div.innerHTML;
        }

        function addMessage(sender, content, msgId) {
            var messages = document.getElementById("messages");
            if (!messages) return;

            var div = document.createElement("div");
            div.className = "message " + sender;
            if (msgId) div.id = msgId;

            if (sender === "user") {
                div.innerHTML =
                    '<div class="message-content user-message">' +
                    escapeHtml(content) +
                    "</div>";
            } else {
                var parsed =
                    typeof marked !== "undefined" && marked.parse
                        ? marked.parse(content)
                        : escapeHtml(content);
                div.innerHTML =
                    '<div class="message-content bot-message">' +
                    parsed +
                    "</div>";
            }

            messages.appendChild(div);
            messages.scrollTop = messages.scrollHeight;
        }

        function updateStreaming(content) {
            var el = document.getElementById(streamingMessageId);
            if (el) {
                var parsed =
                    typeof marked !== "undefined" && marked.parse
                        ? marked.parse(content)
                        : escapeHtml(content);
                el.querySelector(".message-content").innerHTML = parsed;
            }
        }

        function finalizeStreaming() {
            var el = document.getElementById(streamingMessageId);
            if (el) {
                var parsed =
                    typeof marked !== "undefined" && marked.parse
                        ? marked.parse(currentStreamingContent)
                        : escapeHtml(currentStreamingContent);
                el.querySelector(".message-content").innerHTML = parsed;
                el.removeAttribute("id");
            }
            streamingMessageId = null;
            currentStreamingContent = "";
        }

        function processMessage(data) {
            if (data.is_complete) {
                if (isStreaming) {
                    finalizeStreaming();
                } else {
                    addMessage("bot", data.content);
                }
                isStreaming = false;
            } else {
                if (!isStreaming) {
                    isStreaming = true;
                    streamingMessageId = "streaming-" + Date.now();
                    currentStreamingContent = data.content || "";
                    addMessage(
                        "bot",
                        currentStreamingContent,
                        streamingMessageId,
                    );
                } else {
                    currentStreamingContent += data.content || "";
                    updateStreaming(currentStreamingContent);
                }
            }
        }

        // ==========================================================================
        // SEND MESSAGE - GLOBAL FUNCTION
        // ==========================================================================
        function sendMessage() {
            var input = document.getElementById("messageInput");
            if (!input) {
                console.error("Chat input not found");
                return;
            }

            var content = input.value.trim();
            if (!content) {
                return;
            }

            // Always show user message locally
            addMessage("user", content);
            input.value = "";
            input.focus();

            // Try to send via WebSocket if connected
            if (ws && ws.readyState === WebSocket.OPEN) {
                ws.send(
                    JSON.stringify({
                        bot_id: currentBotId,
                        user_id: currentUserId,
                        session_id: currentSessionId,
                        channel: "web",
                        content: content,
                        message_type: MessageType.USER,
                        timestamp: new Date().toISOString(),
                    }),
                );
            } else {
                notify("Not connected to server. Message not sent.", "warning");
            }
        }

        // Make sendMessage globally available immediately
        window.sendMessage = sendMessage;

        // ==========================================================================
        // WEBSOCKET CONNECTION
        // ==========================================================================
        function connectWebSocket() {
            if (ws) {
                ws.close();
            }

            var url =
                WS_URL +
                "/ws?session_id=" +
                currentSessionId +
                "&user_id=" +
                currentUserId;
            ws = new WebSocket(url);

            ws.onopen = function () {
                console.log("WebSocket connected");
                reconnectAttempts = 0;
            };

            ws.onmessage = function (event) {
                try {
                    var data = JSON.parse(event.data);
                    if (data.type === "connected") return;
                    if (data.message_type === MessageType.BOT_RESPONSE) {
                        processMessage(data);
                    }
                } catch (e) {
                    console.error("WS message error:", e);
                }
            };

            ws.onclose = function () {
                notify("Disconnected from chat server", "error");
                if (reconnectAttempts < maxReconnectAttempts) {
                    reconnectAttempts++;
                    setTimeout(connectWebSocket, 1000 * reconnectAttempts);
                }
            };

            ws.onerror = function (e) {
                console.error("WebSocket error:", e);
            };
        }

        // ==========================================================================
        // INITIALIZATION
        // ==========================================================================
        function initChat() {
            var botName = "default";
            fetch("/api/auth?bot_name=" + encodeURIComponent(botName))
                .then(function (response) {
                    return response.json();
                })
                .then(function (auth) {
                    currentUserId = auth.user_id;
                    currentSessionId = auth.session_id;
                    currentBotId = auth.bot_id || "default";
                    console.log("Auth:", {
                        currentUserId: currentUserId,
                        currentSessionId: currentSessionId,
                        currentBotId: currentBotId,
                    });
                    connectWebSocket();
                })
                .catch(function (e) {
                    console.error("Auth failed:", e);
                    notify("Failed to connect to chat server", "error");
                    setTimeout(initChat, 3000);
                });
        }

        function setupEventHandlers() {
            var form = document.getElementById("chatForm");
            var input = document.getElementById("messageInput");
            var sendBtn = document.getElementById("sendBtn");

            if (form) {
                form.onsubmit = function (e) {
                    e.preventDefault();
                    sendMessage();
                    return false;
                };
            }

            if (input) {
                input.onkeydown = function (e) {
                    if (e.key === "Enter" && !e.shiftKey) {
                        e.preventDefault();
                        sendMessage();
                    }
                };
            }

            if (sendBtn) {
                sendBtn.onclick = function (e) {
                    e.preventDefault();
                    sendMessage();
                };
            }
        }

        // Run setup immediately
        setupEventHandlers();
        initChat();

        console.log(
            "Chat module initialized, sendMessage is:",
            typeof window.sendMessage,
        );
    })();
</script>