@glimpsrc/clouddb/main/database.js

A cloudDB, uma database poderosa e simples para seus projetos pessoais!

import fs from 'fs/promises';
import path from 'path';

export class CloudDB {
  constructor(filePath = 'db.json', options = {}) {
    this.filePath = path.resolve(filePath);
    this.encoding = options.encoding || 'utf-8';
    this.autoSave = options.autoSave ?? true;
    this.mode = options.mode || 'json'; // 'json' ou 'text'
    this.db = this.mode === 'json' ? {} : ''; // Inicialização
  }

  async init() {
    await fs.mkdir(path.dirname(this.filePath), { recursive: true });
    await this.reload();
  }

  async _save() {
    const data = this.mode === 'json'
      ? JSON.stringify(this.db, null, 2)
      : this.db.toString();
    await fs.writeFile(this.filePath, data, this.encoding);
  }

  async reload() {
    try {
      const data = await fs.readFile(this.filePath, this.encoding);
      this.db = this.mode === 'json' ? JSON.parse(data) : data;
    } catch {
      this.db = this.mode === 'json' ? {} : '';
      await this._save();
    }
  }

  // JSON MODE
  async get(key) {
    if (this.mode !== 'json') return null;
    return this.db[key];
  }

  async set(key, value) {
    if (this.mode !== 'json') return;
    this.db[key] = value;
    if (this.autoSave) await this._save();
  }

  async delete(key) {
    if (this.mode !== 'json') return;
    delete this.db[key];
    if (this.autoSave) await this._save();
  }

  async has(key) {
    if (this.mode !== 'json') return false;
    return Object.prototype.hasOwnProperty.call(this.db, key);
  }

  async keys() {
    if (this.mode !== 'json') return [];
    return Object.keys(this.db);
  }

  async values() {
    if (this.mode !== 'json') return [];
    return Object.values(this.db);
  }

  async all() {
    return this.mode === 'json' ? { ...this.db } : this.db;
  }

  async clear() {
    this.db = this.mode === 'json' ? {} : '';
    if (this.autoSave) await this._save();
  }

  async save() {
    await this._save();
  }

  async size() {
    return this.mode === 'json'
      ? Object.keys(this.db).length
      : this.db.length;
  }

  getPath() {
    return this.filePath;
  }

  toJSON() {
    return this.mode === 'json'
      ? JSON.stringify(this.db, null, 2)
      : JSON.stringify({ content: this.db });
  }
}