'use strict'

const assert = require('assert')
const config = require('../lib/config')
const helper = require('../helper')
const redis = config.redis

describe('The \'incr\' method', () => {
  helper.allTests((ip, args) => {
    describe(`using ${ip}`, () => {
      describe('when connected and a value in Redis', () => {
        let client
        const key = 'ABOVE_SAFE_JAVASCRIPT_INTEGER'

        afterEach(() => {
          client.end(true)
        })

        /*
                    Number.MAX_SAFE_INTEGER === Math.pow(2, 53) - 1 === 9007199254740991

                    9007199254740992 -> 9007199254740992
                    9007199254740993 -> 9007199254740992
                    9007199254740994 -> 9007199254740994
                    9007199254740995 -> 9007199254740996
                    9007199254740996 -> 9007199254740996
                    9007199254740997 -> 9007199254740996
                    ...
                */
        it('count above the safe integers as numbers', (done) => {
          client = redis.createClient.apply(null, args)
          // Set a value to the maximum safe allowed javascript number (2^53) - 1
          client.set(key, Number.MAX_SAFE_INTEGER, helper.isNotError())
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 1))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 2))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 3))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 4))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 5))
          client.incr(key, (err, res) => {
            helper.isNumber(Number.MAX_SAFE_INTEGER + 6)(err, res)
            assert.strictEqual(typeof res, 'number')
          })
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 7))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 8))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 9))
          client.incr(key, helper.isNumber(Number.MAX_SAFE_INTEGER + 10, done))
        })

        it('count above the safe integers as strings', (done) => {
          args[2].stringNumbers = true
          client = redis.createClient.apply(null, args)
          // Set a value to the maximum safe allowed javascript number (2^53)
          client.set(key, Number.MAX_SAFE_INTEGER, helper.isNotError())
          client.incr(key, helper.isString('9007199254740992'))
          client.incr(key, helper.isString('9007199254740993'))
          client.incr(key, helper.isString('9007199254740994'))
          client.incr(key, helper.isString('9007199254740995'))
          client.incr(key, helper.isString('9007199254740996'))
          client.incr(key, (err, res) => {
            helper.isString('9007199254740997')(err, res)
            assert.strictEqual(typeof res, 'string')
          })
          client.incr(key, helper.isString('9007199254740998'))
          client.incr(key, helper.isString('9007199254740999'))
          client.incr(key, helper.isString('9007199254741000'))
          client.incr(key, helper.isString('9007199254741001', done))
        })
      })
    })
  })
})