require "refile"
require "active_support/inflector"
require "refile/rails/attachment_helper"

describe Refile::AttachmentHelper do
  describe "#attachment_url" do
    let(:view) { Struct.new(:main_app, :request).new(main_app, request) }
    let(:main_app) { double :main_app, refile_app_path: "attachments" }
    let(:request) { double :request, base_url: "http://www.example.com" }
    let(:record) { double :record, name: name, image: file }
    let(:name) { :image }
    let(:file) { double :file, backend: backend, id: "123abc" }
    let(:backend) { double :backend }
    before do
      view.extend(Refile::AttachmentHelper)
      Refile.backends["test_backend"] = backend
    end
    after do
      Refile.backends.delete("test_backend")
    end

    context "with a host passed in" do
      let(:host) { "//cdn.example.com" }

      it "creates the expected url" do
        url = view.attachment_url(record, name, "fill", 300, 300, filename: "test", format: "jpg", host: host)
        expect(url).to eq "//cdn.example.com/attachments/test_backend/fill/300/300/123abc/test.jpg"
      end
    end

    context "with no host passed in, but Refile.host set" do
      before do
        @original_host = Refile.host
        Refile.host = "//cdn.example.com"
      end
      after do
        Refile.host = @original_host
      end

      it "creates the expected url" do
        url = view.attachment_url(record, name, "fill", 300, 300, filename: "test", format: "jpg")
        expect(url).to eq "//cdn.example.com/attachments/test_backend/fill/300/300/123abc/test.jpg"
      end
    end

    context "with no host passed in, and no Refile.host set" do
      before do
        @original_host = Refile.host
        Refile.host = nil
      end
      after do
        Refile.host = @original_host
      end

      it "creates the expected url" do
        url = view.attachment_url(record, name, "fill", 300, 300, filename: "test", format: "jpg")
        expect(url).to eq "http://www.example.com/attachments/test_backend/fill/300/300/123abc/test.jpg"
      end
    end
  end
end