feat: Agregar modulo de Sistema (mongosh, logs, export/import)

server/api-mongodb.js

@@ -17,9 +17,43 @@ import { initDb,
   getAllIndicaciones, createIndicacion, updateIndicacion, deleteIndicacion,
   getAllMovimientosIndicaciones, createMovimientoIndicacion,
   getAllPendientes, createPendiente, updatePendiente, deletePendiente,
-  getValue, setValue
+  getValue, setValue,
+  getDb, exportAllData, importAllData
 } from './db-mongodb.js';
 
+// Capture live logs in-memory
+const logBuffer = [];
+const originalLog = console.log;
+const originalError = console.error;
+const originalWarn = console.warn;
+
+function addLog(type, args) {
+  const message = args.map(arg => {
+    if (typeof arg === 'object') {
+      try { return JSON.stringify(arg); } catch { return String(arg); }
+    }
+    return String(arg);
+  }).join(' ');
+  const logEntry = `[${new Date().toISOString()}] [${type}] ${message}`;
+  logBuffer.push(logEntry);
+  if (logBuffer.length > 500) {
+    logBuffer.shift();
+  }
+}
+
+console.log = (...args) => {
+  addLog('INFO', args);
+  originalLog.apply(console, args);
+};
+console.error = (...args) => {
+  addLog('ERROR', args);
+  originalError.apply(console, args);
+};
+console.warn = (...args) => {
+  addLog('WARN', args);
+  originalWarn.apply(console, args);
+};
+
 const app = express();
 app.use(cors({
   origin: true,
@@ -760,6 +794,90 @@ app.put('/api/auth/update-email', async (req, res) => {
   }
 });
 
+// ========== ADMIN SYSTEM ENDPOINTS ==========
+
+app.post('/api/admin/mongosh', async (req, res) => {
+  try {
+    const { command } = req.body;
+    if (!command) {
+      return res.status(400).json({ error: 'Comando requerido' });
+    }
+
+    const dbInstance = getDb();
+    if (!dbInstance) {
+      return res.json({ result: 'Advertencia: MongoDB no está conectado. Utilizando store en memoria. Las consultas de mongosh no están disponibles.', isMemStore: true });
+    }
+
+    const dbProxy = new Proxy(dbInstance, {
+      get(target, prop) {
+        if (typeof target[prop] !== 'undefined') {
+          if (typeof target[prop] === 'function') {
+            return target[prop].bind(target);
+          }
+          return target[prop];
+        }
+        return target.collection(prop);
+      }
+    });
+
+    const { ObjectId } = await import('mongodb');
+
+    const evalFn = new Function('db', 'ObjectId', `
+      return (async () => {
+        ${command.trim().includes('return') || command.trim().startsWith('{') || command.trim().includes(';') ? command : 'return (' + command + ')'}
+      })();
+    `);
+
+    const result = await evalFn(dbProxy, ObjectId);
+    res.json({ result });
+  } catch (err) {
+    res.status(400).json({ error: err.message || String(err) });
+  }
+});
+
+app.get('/api/admin/db/export', async (req, res) => {
+  try {
+    const dump = await exportAllData();
+    res.setHeader('Content-Type', 'application/json');
+    res.setHeader('Content-Disposition', 'attachment; filename=hospital_backup.json');
+    res.json(dump);
+  } catch (err) {
+    res.status(500).json({ error: 'Error al exportar base de datos: ' + err.message });
+  }
+});
+
+app.post('/api/admin/db/import', async (req, res) => {
+  try {
+    const dump = req.body;
+    if (!dump || typeof dump !== 'object') {
+      return res.status(400).json({ error: 'Formato de importación inválido' });
+    }
+    await importAllData(dump);
+    res.json({ ok: true });
+  } catch (err) {
+    res.status(500).json({ error: 'Error al importar base de datos: ' + err.message });
+  }
+});
+
+app.get('/api/admin/logs', async (req, res) => {
+  try {
+    let fileLogs = '';
+    try {
+      const fs = await import('fs/promises');
+      fileLogs = await fs.readFile('server_log.txt', 'utf8');
+    } catch {
+      // ignore
+    }
+    
+    const memoryLogs = logBuffer.join('\n');
+    const combined = [fileLogs, '\n--- LOGS DE LA SESION EN VIVO ---', memoryLogs].filter(Boolean).join('\n');
+    res.setHeader('Content-Type', 'text/plain; charset=utf-8');
+    res.send(combined);
+  } catch (err) {
+    res.status(500).send('Error al leer logs: ' + err.message);
+  }
+});
+
 // Initialize DB and start server
 const PORT = process.env.PORT || 4000;
 const HOST = process.env.HOST || '0.0.0.0';