should = require "should"
config = require "../../lib/config/config"
config.email = config.get('email')
config.smsGateway = config.get('smsGateway')
contact = require "../../lib/contact"
sinon = require "sinon"
nodemailer = require "nodemailer"

describe "Contact Users", ->
  describe "config", ->
    it "default config should contain email config fields", (done) ->
      config.email.fromAddress.should.exist
      config.email.nodemailer.should.exist
      config.email.nodemailer.service.should.exist
      config.email.nodemailer.auth.should.exist
      config.email.nodemailer.auth.user.should.exist
      config.email.nodemailer.auth.pass.should.exist
      done()

    it "default config should contain smsGateway config fields", (done) ->
      config.smsGateway.should.exist
      config.smsGateway.provider.should.exist
      config.smsGateway.config.should.exist
      config.smsGateway.config.user.should.exist
      config.smsGateway.config.pass.should.exist
      config.smsGateway.config.apiID.should.exist
      done()

  describe "sendEmail", ->
    sandbox = null

    beforeEach (done) ->
      sandbox = sinon.sandbox.create()
      done()

    afterEach (done) ->
      sandbox.restore()
      done()

    it "should propagate errors from nodemailer", (done) ->
      # Stub nodemailer and the transport
      transportStub = sendMail: sandbox.stub().yields new Error "Nodemailer error"
      nodemailerStub = sandbox.stub(nodemailer, "createTransport").returns transportStub

      # Execute the test method
      contact.sendEmail "test@example.com", "Test", "Hello world", "<h1>Hello world</h1>", (err) ->
        should.exist err
        should.equal err.message, "Nodemailer error"
        done()

    it "should send mail with the correct fields", (done) ->
      expectedFields =
        from: "address@example.com"
        to:  "user@example.com"
        subject: "Test"
        text: "Hello world"
        html: "<h1>Hello world</h1>"

      # Stub the sendMail function
      sendMailStub = sandbox.stub()
      sendMailStub.yields new Error "Incorrect fields"
      sendMailStub.withArgs(sinon.match(expectedFields), sinon.match.func).yields null

      # Stub nodemailer and the transport
      transportStub = sendMail: sendMailStub
      nodemailerStub = sandbox.stub(nodemailer, "createTransport").returns transportStub

      # Execute the test method
      contact.sendEmail expectedFields.to, expectedFields.subject, expectedFields.text, expectedFields.html, (err) ->
        should.not.exist err
        done()

    it "should send mail with the correct fields with old config", (done) ->
      # Temporarily switch config
      emailConfig = config.email
      config.email = null
      config.nodemailer = emailConfig.nodemailer

      expectedFields =
        from: "user@gmail.com"
        to:  "user@example.com"
        subject: "Test"
        text: "Hello world"
        html: "<h1>Hello world</h1>"

      # Stub the sendMail function
      sendMailStub = sandbox.stub()
      sendMailStub.yields new Error "Incorrect fields"
      sendMailStub.withArgs(sinon.match(expectedFields), sinon.match.func).yields null

      # Stub nodemailer and the transport
      transportStub = sendMail: sendMailStub
      nodemailerStub = sandbox.stub(nodemailer, "createTransport").returns transportStub

      # Execute the test method
      contact.sendEmail expectedFields.to, expectedFields.subject, expectedFields.text, expectedFields.html, (err) ->
        should.not.exist err
        # Restore config
        config.nodemailer = null
        config.email = emailConfig
        done()

    it "should return an error when no config is found", (done) ->
      # Temporarily remove email config
      emailConfig = config.email
      config.email = null

      # Execute the test method
      contact.sendEmail "test@example.com", "Test", "Hello world", "<h1>Hello world</h1>", (err) ->
        should.exist err
        should.equal err.message, "No email config found"
        # Restore config
        config.email = emailConfig
        done()