var chai = require('chai')
var chaiAsPromised = require('chai-as-promised')
chai.use(chaiAsPromised)
chai.should()

var R = require('ramda')

var alpha = function (str) {
  var value = [str, 'alpha'].join(' ')
  return Promise.resolve(value)
}
var beta = function (str) {
  var value = [str, 'beta'].join(' ')
  return Promise.resolve(value)
}
var gamma = function (str) {
  var value = [str, 'gamma'].join(' ')
  return Promise.resolve(value)
}
var delta = function (str) {
  var value = [str, 'delta'].join(' ')
  return Promise.resolve(value)
}
var alphaDuo = function (valueOne, valueTwo) {
  var value = [valueOne, valueTwo, 'alpha'].join(' ')
  return Promise.resolve(value)
}
var betaDuo = function (valueOne, valueTwo) {
  var value = [valueOne, valueTwo, 'beta'].join(' ')
  return Promise.resolve(value)
}
// var gammaDuo = function (valueOne, valueTwo) {
//   var value = [valueOne, valueTwo, 'gamma'].join(' ')
//   return Promise.resolve(value)
// }
// var deltaDuo = function (valueOne, valueTwo) {
//   var value = [valueOne, valueTwo, 'delta'].join(' ')
//   return Promise.resolve(value)
// }

/* global describe, it */

describe('vendor-ramda-promise', function () {
  it('should pipe where each promise has one arg', function () {
    var result = R.pipeP(
      alpha,
      beta,
      gamma,
      delta
    )
    result('A').should.eventually.equal('A alpha beta gamma delta')
  })
  it('should pipe where first promise has two args', function () {
    var result = R.pipeP(
      alphaDuo,
      beta,
      gamma,
      delta
    )
    result('A', 'B').should.eventually.equal('A B alpha beta gamma delta')
  })
  it('should pipe where second promise has two args', function () {
    var result = R.pipeP(
      alpha,
      R.curry(betaDuo)('B'),
      gamma,
      delta
    )
    result('A').should.eventually.equal('A alpha B beta gamma delta')
  })
  it('should pipe where all promisees have two args', function () {
    var result = R.pipeP(
      alphaDuo,
      R.curry(betaDuo)('C'),
      R.curry(gamma)('D'),
      R.curry(delta)('E')
    )
    result('A', 'B').should.eventually.equal('A B alpha C beta D gamma E delta')
  })
})