{% extends "base.html" %} {% block title %}LLM Chat - API Demo{% endblock %} {%
block content %}
<div class="page-header">
    <h1>🤖 AI Chat - Videogame Expert</h1>
    <p>Chat with our AI assistant (Rate limited: 100 tokens/60s)</p>
</div>

<div class="chat-container">
    <div class="chat-messages" id="chat-messages">
        <div class="system-message">
            Welcome! Ask me anything about videogames. I'm powered by the
            videogame-expert model.
        </div>
    </div>

    <div class="chat-input-container">
        <textarea
            id="chat-input"
            placeholder="Type your message here..."
            rows="3"
        ></textarea>
        <button id="send-btn" class="btn btn-primary" onclick="sendMessage()">
            Send Message
        </button>
    </div>

    <div class="chat-info">
        <small>
            Model: <strong>videogame-expert</strong> | Status:
            <span id="status">Ready</span> | Rate Limit:
            <strong>100 tokens/60s</strong>
        </small>
    </div>
</div>
{% endblock %} {% block scripts %}
<script src="https://cdn.jsdelivr.net/npm/marked@11.1.1/marked.min.js"></script>
<script>
    const API_BASE = "/api";
    let isProcessing = false;

    function addMessage(content, isUser = false) {
        const messagesDiv = document.getElementById("chat-messages");
        const messageDiv = document.createElement("div");
        messageDiv.className = isUser ? "user-message" : "assistant-message";

        if (isUser) {
            messageDiv.textContent = content;
        } else {
            // Parse markdown for assistant messages
            messageDiv.innerHTML = marked.parse(content);
        }

        messagesDiv.appendChild(messageDiv);
        messagesDiv.scrollTop = messagesDiv.scrollHeight;
    }

    function setStatus(text, isError = false) {
        const statusSpan = document.getElementById("status");
        statusSpan.textContent = text;
        statusSpan.style.color = isError ? "#f44336" : "#4CAF50";
    }

    async function sendMessage() {
        if (isProcessing) return;

        const input = document.getElementById("chat-input");
        const prompt = input.value.trim();

        if (!prompt) {
            alert("Please enter a message");
            return;
        }

        // Add user message
        addMessage(prompt, true);
        input.value = "";

        // Set processing state
        isProcessing = true;
        document.getElementById("send-btn").disabled = true;
        setStatus("Processing...");

        try {
            const response = await fetch(`${API_BASE}/llm/chat`, {
                method: "POST",
                headers: {
                    "Content-Type": "application/json",
                },
                body: JSON.stringify({
                    prompt: prompt,
                    max_tokens: 150,
                    temperature: 0.7,
                    model: "videogame-expert",
                }),
            });

            if (!response.ok) {
                const error = await response.json();
                throw new Error(error.detail || "API request failed");
            }

            const data = await response.json();

            // Add assistant response
            addMessage(data.response, false);

            // Show tokens used
            const tokensInfo = `Tokens used: ${data.tokens_used}`;
            const infoDiv = document.createElement("div");
            infoDiv.className = "system-message";
            infoDiv.textContent = tokensInfo;
            document.getElementById("chat-messages").appendChild(infoDiv);

            setStatus("Ready");
        } catch (error) {
            console.error("Error:", error);
            addMessage(`Error: ${error.message}`, false);
            setStatus("Error", true);
        } finally {
            isProcessing = false;
            document.getElementById("send-btn").disabled = false;
        }
    }

    // Allow Enter to send (Shift+Enter for newline)
    document
        .getElementById("chat-input")
        .addEventListener("keydown", function (e) {
            if (e.key === "Enter" && !e.shiftKey) {
                e.preventDefault();
                sendMessage();
            }
        });
</script>
{% endblock %}