Initial commit: Sistema de Gestión Hospitalaria

server/db.js

@@ -0,0 +1,36 @@
+import sqlite3 from 'sqlite3';
+import { open } from 'sqlite';
+import { dirname } from 'path';
+import { fileURLToPath } from 'url';
+
+const __dirname = dirname(fileURLToPath(import.meta.url));
+const DB_PATH = __dirname + '/data/hospital.db';
+
+export async function openDb() {
+  const db = await open({
+    filename: DB_PATH,
+    driver: sqlite3.Database,
+  });
+
+  await db.exec(`
+    CREATE TABLE IF NOT EXISTS kv (
+      key TEXT PRIMARY KEY,
+      value TEXT
+    );
+  `);
+
+  return db;
+}
+
+export async function getValue(key) {
+  const db = await openDb();
+  const row = await db.get('SELECT value FROM kv WHERE key = ?', key);
+  await db.close();
+  return row?.value ?? null;
+}
+
+export async function setValue(key, value) {
+  const db = await openDb();
+  await db.run('INSERT INTO kv (key, value) VALUES (?, ?) ON CONFLICT(key) DO UPDATE SET value=excluded.value', key, value);
+  await db.close();
+}