const { Hono } = require('hono');
const app = new Hono();

const users = [
  { id: 1, name: 'Alice Johnson', email: 'alice@example.com', role: 'admin' },
  { id: 2, name: 'Bob Smith', email: 'bob@example.com', role: 'user' },
  { id: 3, name: 'Charlie Brown', email: 'charlie@example.com', role: 'user' },
];

// -- Middleware: Logger --
app.use('*', async (c, next) => {
  const start = Date.now();
  console.log('--> ' + c.req.method + ' ' + c.req.path);
  await next();
  const ms = Date.now() - start;
  c.header('X-Response-Time', ms + 'ms');
  console.log('<-- ' + c.req.method + ' ' + c.req.path + ' ' + c.res.status + ' ' + ms + 'ms');
});

// -- Middleware: CORS --
app.use('*', async (c, next) => {
  await next();
  c.header('Access-Control-Allow-Origin', '*');
  c.header('Access-Control-Allow-Methods', 'GET, POST, PUT, DELETE');
});

// -- Middleware: Request ID --
app.use('*', async (c, next) => {
  const id = 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(ch) {
    var r = Math.random() * 16 | 0;
    return (ch === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
  });
  c.set('requestId', id);
  await next();
  c.header('X-Request-Id', id);
});

// -- Routes --
app.get('/', (c) => {
  return c.json({
    name: 'Hono API',
    version: '1.0.0',
    middleware: ['logger', 'cors', 'request-id'],
    endpoints: ['/api/users', '/api/time', '/api/random'],
  });
});

app.get('/api/users', (c) => {
  return c.json(users);
});

app.get('/api/users/:id', (c) => {
  const id = Number(c.req.param('id'));
  const user = users.find(u => u.id === id);
  if (user) return c.json(user);
  return c.json({ error: 'User not found' }, 404);
});

app.get('/api/time', (c) => {
  return c.json({
    timestamp: Date.now(),
    iso: new Date().toISOString(),
    readable: new Date().toLocaleString(),
    requestId: c.get('requestId'),
  });
});

app.get('/api/random', (c) => {
  return c.json({
    number: Math.random(),
    dice: Math.floor(Math.random() * 6) + 1,
    uuid: 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function(ch) {
      var r = Math.random() * 16 | 0;
      return (ch === 'x' ? r : (r & 0x3 | 0x8)).toString(16);
    }),
    requestId: c.get('requestId'),
  });
});

globalThis.__app = app;
console.log('Hono server ready (3 middleware active)');