const slugify = require('slugify');
const { Document } = require('./documents');

const Workspace = {
  tablename: 'workspaces',
  colsInit: `
  id INTEGER PRIMARY KEY AUTOINCREMENT,
  name TEXT NOT NULL UNIQUE,
  slug TEXT NOT NULL UNIQUE,
  vectorTag TEXT DEFAULT NULL,
  createdAt TEXT DEFAULT CURRENT_TIMESTAMP,
  lastUpdatedAt TEXT DEFAULT CURRENT_TIMESTAMP
  `,
  db: async function () {
    const sqlite3 = require('sqlite3').verbose();
    const { open } = require('sqlite');

    const db = await open({
      filename: 'anythingllm.db',
      driver: sqlite3.Database
    })

    await db.exec(`CREATE TABLE IF NOT EXISTS ${this.tablename} (${this.colsInit})`);
    db.on('trace', (sql) => console.log(sql))
    return db
  },
  new: async function (name = null) {
    if (!name) return { result: null, message: 'name cannot be null' };

    const db = await this.db()
    const { id, success, message } = await db.run(`INSERT INTO ${this.tablename} (name, slug) VALUES (?, ?)`, [name, slugify(name, { lower: true })])
      .then((res) => {
        return { id: res.lastID, success: true, message: null }
      })
      .catch((error) => {
        return { id: null, success: false, message: error.message }
      })
    if (!success) return { workspace: null, message }

    const workspace = await db.get(`SELECT * FROM ${this.tablename} WHERE id = ${id}`)
    return { workspace, message: null }
  },
  get: async function (clause = '') {
    const db = await this.db()
    const result = await db.get(`SELECT * FROM ${this.tablename} WHERE ${clause}`).then((res) => res || null)
    if (!result) return null;

    const documents = await Document.forWorkspace(result.id);
    return { ...result, documents }
  },
  delete: async function (clause = '') {
    const db = await this.db()
    await db.get(`DELETE FROM ${this.tablename} WHERE ${clause}`)
    return true
  },
  where: async function (clause = '', limit = null) {
    const db = await this.db()
    const results = await db.all(`SELECT * FROM ${this.tablename} ${clause ? `WHERE ${clause}` : ''} ${!!limit ? `LIMIT ${limit}` : ''}`)
    return results
  },
}

module.exports = { Workspace }