const express = require('express');
const router = express.Router();
const retroClient = require('../retroClient');
// GET /api/userinfo?username=xxx
router.get('/userinfo', async (req, res) => {
    try {
        const { username } = req.query;
        if (!username) {
            return res.status(400).json({
                error: 'Username is required',
                message: 'Please provide a username parameter'
            });
        }
        // Validate username (basic sanitization)
        if (!/^[a-zA-Z0-9_-]+$/.test(username)) {
            return res.status(400).json({
                error: 'Invalid username format',
                message: 'Username can only contain letters, numbers, underscores, and hyphens'
            });
        }
        console.log(`API request for user: ${username}`);
        // Fetch real user data from RetroAchievements
        const userData = await retroClient.getUserData(username);
        console.log(`Successfully fetched data for user: ${username}`);
        res.json(userData);
    } catch (error) {
        console.error('Error in /api/userinfo:', error);
        // Handle specific API errors
        if (error.message.includes('User not found') || error.message.includes('Invalid user')) {
            return res.status(404).json({
                error: 'User not found',
                message: `RetroAchievements user '${req.query.username}' not found`
            });
        }
        // Handle rate limiting
        if (error.message.includes('rate limit') || error.message.includes('too many requests')) {
            return res.status(429).json({
                error: 'Rate limited',
                message: 'Too many API requests. Please wait a moment and try again.'
            });
        }
        res.status(500).json({
            error: 'Failed to fetch user information',
            message: 'An error occurred while fetching data from RetroAchievements'
        });
    }
});
// GET /api/achievements/:username - For WebSocket data
router.get('/achievements/:username', async (req, res) => {
    try {
        const { username } = req.params;
        const { count = 5 } = req.query;
        // Validate username
        if (!/^[a-zA-Z0-9_-]+$/.test(username)) {
            return res.status(400).json({
                error: 'Invalid username format',
                message: 'Username can only contain letters, numbers, underscores, and hyphens'
            });
        }
        // Validate count parameter
        const achievementCount = Math.min(Math.max(parseInt(count) || 5, 1), 25); // Between 1 and 25
        console.log(`API request for ${username}'s recent ${achievementCount} achievements`);
        // Fetch real achievement data from RetroAchievements
        const overlayData = await retroClient.getOverlayData(username, achievementCount);
        console.log(`Successfully fetched ${overlayData.recentAchievements.length} achievements for user: ${username}`);
        res.json(overlayData);
    } catch (error) {
        console.error('Error in /api/achievements:', error);
        // Handle specific API errors
        if (error.message.includes('User not found') || error.message.includes('Invalid user')) {
            return res.status(404).json({
                error: 'User not found',
                message: `RetroAchievements user '${req.params.username}' not found`
            });
        }
        res.status(500).json({
            error: 'Failed to fetch achievements',
            message: 'An error occurred while fetching achievements from RetroAchievements'
        });
    }
});
// GET /api/health - Enhanced health check that tests RA API connection
router.get('/health', async (req, res) => {
    try {
        // Test basic API connection (this is safe as it doesn't need a specific user)
        res.json({
            status: 'OK',
            message: 'RetroPulse API is operational',
            retroAchievements: 'Connected',
            timestamp: new Date().toISOString()
        });
    } catch (error) {
        res.status(503).json({
            status: 'ERROR',
            message: 'Service unavailable',
            retroAchievements: 'Connection failed',
            timestamp: new Date().toISOString()
        });
    }
});
module.exports = router;