import Database from "better-sqlite3";
import path from "path";
import fs from "fs";

let db: Database.Database | null = null;

export function getDatabase(): Database.Database {
  if (!db) {
    const dbPath = path.join(process.cwd(), "database", "ollahub.db");

    // Garantir que o diretório existe
    const dbDir = path.dirname(dbPath);
    if (!fs.existsSync(dbDir)) {
      fs.mkdirSync(dbDir, { recursive: true });
    }

    db = new Database(dbPath);

    // Configurações de performance
    db.pragma("journal_mode = WAL");
    db.pragma("synchronous = NORMAL");
    db.pragma("foreign_keys = ON");
    db.pragma("cache_size = 10000");
    db.pragma("temp_store = memory");
  }
  return db;
}

export function closeDatabase(): void {
  if (db) {
    db.close();
    db = null;
  }
}