Function handleChatMessage

worker.js:1642–1799

(message, sender)

});

async function handleChatMessage(message, sender) {
    try {
        // Check if user has custom API configured
        const customAPIConfig = await getCustomAPIConfig();
        
        if (customAPIConfig.useCustomAPI && customAPIConfig.apiKey) {
            // Use custom API for chat
            const chatPrompt = message.context 
                ? `Context: ${message.context}\n\nUser: ${message.message}\n\nPlease provide a helpful response.`
                : message.message;
                
            const result = await queryCustomAPI(chatPrompt, false, false, customAPIConfig);
            
            if (typeof result === 'string') {
                sendChatResponse(sender.tab.id, result);
            } else {
                sendChatErrorResponse(sender.tab.id, result.error || 'Failed to get response from custom API');
            }
            return;
        }
        
        // Check if user is logged in
        const {
            accessToken,
            refreshToken,
            isPro
        } = await getTokens();

        // If not logged in and no custom API configured, require custom API
        if (!accessToken || !refreshToken) {
            sendChatErrorResponse(sender.tab.id, "Please configure your custom API key in Settings or login with Pro to use our proxy-server.");
            return;
        }

        // Always use Pro endpoint
        const chatEndpoint = `${API_BASE_URL}/api/pro-chat`;

        const requestBody = {
            message: message.message,
            context: message.context,
            refreshToken: refreshToken  // Send refresh token for server-side auto-refresh
        };

        // Include image if present
        if (message.image) {
            requestBody.image = message.image;
        }

        let response = await makeAuthenticatedRequest(
            chatEndpoint,
            "POST",
            accessToken,
            requestBody
        );

        // Server automatically handles token refresh if access token expired
        // If auth fails, it means refresh token is also invalid/expired
        if (!response.ok && (response.status === 401 || response.status === 403)) {