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import express, { Request, Response, NextFunction } from 'express';
import path from 'path';
import { fileURLToPath } from 'url';
import { dirname } from 'path';
import fs from 'fs';
import { auth } from './auth.js';
import { initializeDefaultUser } from '../models/User.js';
import config from '../config/index.js';
// Create __dirname equivalent for ES modules
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);
// Try to find the correct frontend file path
const findFrontendPath = (): string => {
// First try development environment path
const devPath = path.join(dirname(__dirname), 'frontend', 'dist', 'index.html');
if (fs.existsSync(devPath)) {
return path.join(dirname(__dirname), 'frontend', 'dist');
}
// Try npm/npx installed path (remove /dist directory)
const npmPath = path.join(dirname(dirname(__dirname)), 'frontend', 'dist', 'index.html');
if (fs.existsSync(npmPath)) {
return path.join(dirname(dirname(__dirname)), 'frontend', 'dist');
}
// If none of the above paths exist, return the most reasonable default path and log a warning
console.warn('Warning: Could not locate frontend files. Using default path.');
return path.join(dirname(__dirname), 'frontend', 'dist');
};
const frontendPath = findFrontendPath();
export const errorHandler = (
err: Error,
_req: Request,
res: Response,
_next: NextFunction,
): void => {
console.error('Unhandled error:', err);
res.status(500).json({
success: false,
message: 'Internal server error',
});
};
export const initMiddlewares = (app: express.Application): void => {
// Serve static files from the dynamically determined frontend path
// Note: Static files will be handled by the server directly, not here
app.use((req, res, next) => {
const basePath = config.basePath;
// Only apply JSON parsing for API and auth routes, not for SSE or message endpoints
if (
req.path !== `${basePath}/sse` &&
!req.path.startsWith(`${basePath}/sse/`) &&
req.path !== `${basePath}/messages`
) {
express.json()(req, res, next);
} else {
next();
}
});
// Initialize default admin user if no users exist
initializeDefaultUser().catch((err) => {
console.error('Error initializing default user:', err);
});
// Protect API routes with authentication middleware, but exclude auth endpoints
app.use(`${config.basePath}/api`, (req, res, next) => {
// Skip authentication for login and register endpoints
if (req.path === '/auth/login' || req.path === '/auth/register') {
next();
} else {
auth(req, res, next);
}
});
app.use(errorHandler);
};
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