const DB = require('../../database')
const groupCMD = require('./group')

const cmds = {}

for (let i in groupCMD) {
  cmds[i] = groupCMD[i]
}

const parseCMD = async (text = '', source = {}) => {
  if (typeof text !== 'string' || text.trim().length === 0) return null
  if (!source || typeof source !== 'object' || !('type' in source)) return null
  let txt = text.trim()
  let arr = txt.split(' ').map(t => t.trim())
  if (arr.length === 0) return null
  if (arr[0][0] !== '!') return null
  let cmd = arr[0].replace(/^!/, '')

  // find default command
  if (cmd in cmds) {
    let db = await DB.connect()
    let result = null
    try {
      result = await cmds[cmd](arr.slice(1).join(' '), source, db)
    } catch (err) {
      console.log(err)
    }
    // if (result === null) return null
    db.release()
    return result
  }

  let db = await DB.connect()
  try {
    let text = `select "mrssage" from "public"."commands" where cmd = $1`
    let values = [cmd]
    let result = await db.query({
      text,
      values
    })
    if (result.rowCount === 0) {
      db.release()
      return null
    }
  } catch (err) {
    console.log(err)
    db.release()
    return null
  }
  db.release()
}

module.exports = parseCMD