#!/usr/bin/env node

const pgp = require('pg-promise')()
const _ = require('lodash/fp')
const db = require('../lib/db')

const argv = process.argv.slice(2)

if (argv.length !== 1) {
  console.log('Usage: lamassu-revoke <user>')
  console.log('Revokes admin panel access from a specific user.')
  process.exit(1)
}

const name = argv[0]

const userTokenSql = `SELECT * FROM user_tokens WHERE name = $1`

return db.result(userTokenSql, [name])
  .then(res => {
    if (res.rowCount === 0) {
      console.log(`User ${name} was not found!`)
      process.exit(0)
    }

    return _.map(t => t.token, res.rows)
  })
  .then(tokens => {
    const tokenClause = _.map(pgp.as.text, tokens).join(',')

    return db.task('get-touched-customers', t => {
      const smsOverride = t.any(`UPDATE customers SET sms_override_by = null WHERE sms_override_by IN ($1^) RETURNING *`, tokenClause)
      const idDataOverride = t.any(`UPDATE customers SET id_card_data_override_by = null WHERE id_card_data_override_by IN ($1^) RETURNING *`, tokenClause)
      const idPhotoOverride = t.any(`UPDATE customers SET id_card_photo_override_by = null WHERE id_card_photo_override_by IN ($1^) RETURNING *`, tokenClause)
      const cameraOverride = t.any(`UPDATE customers SET front_camera_override_by = null WHERE front_camera_override_by IN ($1^) RETURNING *`, tokenClause)
      const sanctionsOverride = t.any(`UPDATE customers SET sanctions_override_by = null WHERE sanctions_override_by IN ($1^) RETURNING *`, tokenClause)
      const authorizedOverride = t.any(`UPDATE customers SET authorized_override_by = null WHERE authorized_override_by IN ($1^) RETURNING *`, tokenClause)
      const usSsnOverride = t.any(`UPDATE customers SET us_ssn_override_by = null WHERE us_ssn_override_by IN ($1^)`, tokenClause)

      return Promise.all([
        smsOverride,
        idDataOverride,
        idPhotoOverride,
        cameraOverride,
        sanctionsOverride,
        authorizedOverride,
        usSsnOverride
      ])
    })
  })
  .then(result => {
    const count = _.sumBy(_.size, result)
    if (count > 0) {
      console.log(`Removed ${count} ${count === 1 ? `entry` : `entries`} on the customer table, related with the user ${name}!`)
    }
  })
  .then(() => {
    const sql = `DELETE FROM user_tokens WHERE name = $1 RETURNING *`
    return db.result(sql, [name], r => r.rowCount)
  })
  .then(res => console.log(`User ${name} (with ${res === 1 ? `token` : `tokens`} associated) successfully removed from the system!`))
  .then(() => process.exit(0))