// scripts/chat.js

async function sendMessage() {
    const userInput = document.getElementById('user-input');
    const chatMessages = document.getElementById('chat-messages');

    if (userInput.value.trim() === '') return;

    // ... (rest of the code to add user message to chat) ...
    const userMessage = document.createElement('div');
    userMessage.className = 'chat-bubble user-bubble p-4 w-3/4 ml-auto mb-4 fade-in';
    userMessage.innerHTML = `<p>${userInput.value}</p>`;
    chatMessages.appendChild(userMessage);

    const userMessageText = userInput.value;
    userInput.value = '';

    // --- Start Debugging ---
    window.logToScreen('sendMessage triggered. Preparing to fetch...');

    try {
        const workerUrl = 'https://YOUR-WORKER-NAME.workers.dev'; // <-- Make sure this URL is correct!
        window.logToScreen(`Fetching from: ${workerUrl}`);

        const response = await fetch(workerUrl, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({ prompt: userMessageText }),
        });

        window.logToScreen(`Fetch response received. Status: ${response.status} ${response.statusText}`);

        if (!response.ok) {
            window.logToScreen('Response was not OK. See status above.');
            const errorText = await response.text();
            window.logToScreen(`Error response body: ${errorText}`);
            throw new Error(`Network response was not ok: ${response.statusText}`);
        }
        
        // ... (rest of the code to handle the streaming response) ...
        const reader = response.body.getReader();
        const decoder = new TextDecoder();
        let aiResponseText = '';
        while (true) {
            const { done, value } = await reader.read();
            if (done) break;
            const chunk = decoder.decode(value, { stream: true });
            aiResponseText += chunk;
        }
        window.logToScreen('Stream finished.');

        // Add final AI response to chat
        const aiMessage = document.createElement('div');
        aiMessage.className = 'chat-bubble ai-bubble p-4 w-3/4 fade-in';
        aiMessage.innerHTML = `<p>${aiResponseText}</p>`;
        chatMessages.appendChild(aiMessage);
        
    } catch (error) {
        window.logToScreen(`FETCH FAILED: ${error.message}`);
        // Display a user-friendly error in the chat
        const errorMessage = document.createElement('div');
        errorMessage.className = 'chat-bubble ai-bubble p-4 w-3/4 fade-in';
        errorMessage.innerHTML = `<p class="text-red-500">Sorry, an error occurred. Check the debug console for details.</p>`;
        chatMessages.appendChild(errorMessage);
    }
    // --- End Debugging ---
}