require 'spec_helper'
require 'tempfile'
require 'mail'

describe "Integrations" do
  def parse_html_in_email(mail)
    Nokogiri::HTML.parse mail.html_part.body.decoded
  end

  [
    RailsApp.new("Rails 3.0.x", 'rails_30', runner: :script, asset_pipeline: false),
    ## We do not yet support live-compilation through asset pipeline
    RailsApp.new("Rails 3.1.x", 'rails_31', runner: :script, asset_pipeline: true),
    RailsApp.new("Rails 3.2.x", 'rails_32', runner: :script, asset_pipeline: true),
    RailsApp.new("Rails 4.0.x", 'rails_40', runner: :bin, asset_pipeline: true),
    RailsApp.new("Rails 4.0.x (without asset pipeline)", 'rails_40_no_pipeline', runner: :bin, asset_pipeline: false),
    RailsApp.new("Rails 4.1.x", 'rails_41', runner: :bin, asset_pipeline: true),
  ].each do |app|
    describe "with #{app}" do
      before { app.reset }

      it "inlines styles for multipart emails" do
        email = app.read_email(:normal_email)

        expect(email.to).to eq(['example@example.org'])
        expect(email.from).to eq(['john@example.com'])
        expect(email).to have(2).parts

        expect(email.text_part.body.decoded).not_to match(/<.*>/)

        html = email.html_part.body.decoded
        expect(html).to include '<!DOCTYPE'
        expect(html).to include '<head'

        document = parse_html_in_email(email)
        expect(document).to have_selector('body h1')

        if app.using_asset_pipeline?
          expected_image_url = 'https://example.app.org/assets/rails.png'
        else
          expected_image_url = 'https://example.app.org/images/rails.png'
        end
        expect(document).to have_styling('background' => "url(#{expected_image_url})").at_selector('.image')

        # If we deliver mails we can catch weird problems with headers being invalid
        email.delivery_method :test
        email.deliver
      end

      it "automatically inlines styles with automatic mailer" do
        email = app.read_delivered_email(:normal_email)

        expect(email.to).to eq(['example@example.org'])
        expect(email.from).to eq(['john@example.com'])
        expect(email).to have(2).parts

        expect(email.text_part.body.decoded).not_to match(/<.*>/)

        html = email.html_part.body.decoded
        expect(html).to include '<!DOCTYPE'
        expect(html).to include '<head'

        document = parse_html_in_email(email)
        expect(document).to have_selector('body h1')

        if app.using_asset_pipeline?
          expected_image_url = 'https://example.app.org/assets/rails.png'
        else
          expected_image_url = 'https://example.app.org/images/rails.png'
        end
        expect(document).to have_styling('background' => "url(#{expected_image_url})").at_selector('.image')

        # If we deliver mails we can catch weird problems with headers being invalid
        email.delivery_method :test
        email.deliver
      end

      it "inlines no styles when roadie_options are nil" do
        email = app.read_delivered_email(:disabled_email)

        expect(email.to).to eq(['example@example.org'])
        expect(email.from).to eq(['john@example.com'])
        expect(email).to have(2).parts

        document = parse_html_in_email(email)
        expect(document).to have_no_styling.at_selector('.image')

        # If we deliver mails we can catch weird problems with headers being invalid
        email.delivery_method :test
        email.deliver
      end

      if app.using_asset_pipeline?
        it "has a AssetPipelineProvider together with a FilesystemProvider" do
          expect(app.read_providers).to eq(%w[Roadie::FilesystemProvider Roadie::Rails::AssetPipelineProvider])
        end
      else
        it "only has a FilesystemProvider" do
          expect(app.read_providers).to eq(["Roadie::FilesystemProvider"])
        end
      end
    end
  end

  describe "with precompiled assets" do
    let(:app) {
      RailsApp.new("Rails 4.0.x (precompiled)", 'rails_40_precompiled', runner: :bin, asset_pipeline: false)
    }

    before { app.reset }

    let(:document) do
      parse_html_in_email app.read_email(:normal_email)
    end

    # It still has an AssetPipelineProvider in case some asset isn't
    # precompiled, or the user want to combine. As long as the user is using
    # the correct asset helpers a precompiled asset will be picked up by the
    # FilesystemProvider.
    it "has a AssetPipelineProvider together with a FilesystemProvider" do
      expect(app.read_providers).to eq(%w[Roadie::FilesystemProvider Roadie::Rails::AssetPipelineProvider])
    end

    it "inlines the precompiled stylesheet" do
      # Precompiled version has green color; the file in app/assets have red
      expect(document).to have_styling('background-color' => 'green').at_selector('body')
    end

    it "inlines images with digests" do
      image_url = "https://example.app.org/assets/rails-231a680f23887d9dd70710ea5efd3c62.png"
      expect(document).to have_styling('background' => "url(#{image_url})").at_selector('.image')
    end
  end
end