require File.dirname(__FILE__) + '/../integration_helper'

describe "Updating a mirror" do

  before do
    FileUtils.rm_rf(TMP_PATH)
    FileUtils.mkdir_p(TMP_PATH)
  end

  describe "from a git repository" do
    before do
      @shiny = create_git_repo_from_fixture("shiny")
      @skit1 = create_git_repo_from_fixture("skit1")
      @file_name = "layouts/layout.liquid"

      in_dir(@shiny) do
        `#{BRAID_BIN} add #{@skit1}`
      end

      update_dir_from_fixture("skit1", "skit1.1")
      in_dir(@skit1) do
        `git add *`
        `git commit -m "change default color"`
      end

      update_dir_from_fixture("skit1", "skit1.2")
      in_dir(@skit1) do
        `git add *`
        `git commit -m "add a happy note"`
      end

    end

    context "with no project-specific changes" do
      it "should add the files and commit" do
        in_dir(@shiny) do
          `#{BRAID_BIN} update skit1`
        end

        output    = `diff -U 3 #{File.join(FIXTURE_PATH, "skit1.2", @file_name)} #{File.join(TMP_PATH, "shiny", "skit1", @file_name)}`
        $?.should be_success

        output = `git log --pretty=oneline`.split("\n")
        output.length.should == 3
        output[0].should =~ /Braid: Update mirror 'skit1' to '[0-9a-f]{7}'/

        # No temporary commits should be added to the reflog.
        output = `git log -g --pretty=oneline`.split("\n")
        output.length.should == 3
      end
    end

    context "with mergeable changes to the same file" do
      it "should auto-merge and commit" do
        `cp #{File.join(FIXTURE_PATH, "skit1_mergeable", @file_name)} #{File.join(TMP_PATH, "shiny", "skit1", @file_name)}`

        in_dir(@shiny) do
          `git commit -a -m 'mergeable change'`
          `#{BRAID_BIN} update skit1`
        end

        output    = `diff -U 3 #{File.join(FIXTURE_PATH, "skit1.2_merged", @file_name)} #{File.join(TMP_PATH, "shiny", "skit1", @file_name)}`
        $?.should be_success

        output = `git log --pretty=oneline`.split("\n")
        output.length.should == 4  # plus 'mergeable change'
        output[0].should =~ /Braid: Update mirror 'skit1' to '[0-9a-f]{7}'/
      end
    end

    context "with conflicting changes" do
      it "should leave conflict markup with the target revision" do
        `cp #{File.join(FIXTURE_PATH, "skit1_conflicting", @file_name)} #{File.join(TMP_PATH, "shiny", "skit1", @file_name)}`

        target_revision = nil
        in_dir(@skit1) do
          target_revision = `git rev-parse HEAD`
        end

        braid_output = nil
        in_dir(@shiny) do
          `git commit -a -m 'conflicting change'`
          braid_output = `#{BRAID_BIN} update skit1`
        end
        braid_output.should =~ /Caught merge error\. Breaking\./

        `grep -q '>>>>>>> #{target_revision}' #{File.join(TMP_PATH, "shiny", "skit1", @file_name)}`
        $?.should be_success
      end
    end

  end
end