require "spec_helper"

describe CapGun::Presenter do

  describe "scm details" do

    it "does nothing if the scm is not git nor subversion" do
      presenter = CapGun::Presenter.new({:scm => :mercurial})
      presenter.scm_details.should == nil
    end

    it "collects branch and git log details if git is scm" do
      capistrano = {:scm => :git, :branch => "edge"}
      presenter = CapGun::Presenter.new(capistrano)
      presenter.should_receive(:scm_log).and_return("xxxxx")

      details = presenter.scm_details
      details.should include("Branch: edge")
      details.should include("xxxxx")
    end
  end

  describe "scm log messages" do
    describe "with git" do
      it "returns N/A if the git log call returns an error" do
        capistrano = {:scm => :git, :previous_revision => "previous-sha", :current_revision => "current-sha" }
        presenter = CapGun::Presenter.new(capistrano)
        presenter.stub(:`).and_return("fatal: Not a git repo")
        presenter.stub(:exit_code).and_return(double("process status", :success? => false))
        presenter.scm_log_messages.should == "N/A"
      end

      it "calls git log with previous_rev..current_rev" do
        capistrano = {:scm => :git, :previous_revision => "previous-sha", :current_revision => "current-sha" }
        presenter = CapGun::Presenter.new(capistrano)
        presenter.stub(:exit_code).and_return(double("process status", :success? => true))
        presenter.should_receive(:`).with(/git log previous-sha..current-sha/)
        presenter.scm_log_messages
      end
    end
    describe "with subversion" do
      it "returns N/A if the svn log call returns an error" do
        capistrano = {:scm => :subversion, :previous_revision => "42", :current_revision => "46" }
        presenter = CapGun::Presenter.new(capistrano)
        presenter.stub(:`).and_return("fatal: Not a working copy")
        presenter.stub(:exit_code).and_return(double("process status", :success? => false))
        presenter.scm_log_messages.should == "N/A"
      end

      it "calls svn log with -r previous_rev+1:current_rev" do
        capistrano = {:scm => :subversion, :previous_revision => "42", :current_revision => "46" }
        presenter = CapGun::Presenter.new(capistrano)
        presenter.stub(:exit_code).and_return(double("process status", :success? => true))
        presenter.should_receive(:`).with(/svn log -r 43:46/)
        presenter.scm_log_messages
      end
    end
  end

  describe "release time" do

    before do # make DateTime act as if local timezone is CDT
      @presenter = CapGun::Presenter.new(nil)
      @presenter.stub(:local_timezone).and_return("CDT")
      @presenter.stub(:local_datetime_zone_offset).and_return(Rational(-1,6))
    end

    it "returns nil for weird release path" do
      @presenter.humanize_release_time("/data/foo/my_release").should == nil
    end

    it "parse datetime from release path" do
      @presenter.humanize_release_time("/data/foo/releases/20080227120000").should == "February 27th, 2008 8:00 AM CDT"
    end

    it "converts time from release into localtime" do
      @presenter.humanize_release_time("/data/foo/releases/20080410040000").should == "April 10th, 2008 12:00 AM CDT"
    end

  end

  describe "from and to emails" do

    it "gets recipients from email envelope" do
      capistrano = { :cap_gun_email_envelope => { :recipients => ["foo@here.com", "bar@here.com"] } }
      presenter = CapGun::Presenter.new(capistrano)
      presenter.recipients.should == ["foo@here.com", "bar@here.com"]
    end

    it "should have a default sender" do
      capistrano = { :cap_gun_email_envelope => { } }
      presenter = CapGun::Presenter.new(capistrano)
      presenter.from.should == "\"CapGun\" <cap_gun@example.com>"
    end

    it "should override sender from email envelope" do
      capistrano = { :cap_gun_email_envelope => { :from => "booyakka!@example.com" } }
      presenter = CapGun::Presenter.new(capistrano)
      presenter.from.should == "booyakka!@example.com"
    end

  end

  describe "previous_revision" do

    it "returns n/a if not set" do
      CapGun::Presenter.new({}).previous_revision.should == "n/a"
    end

    it "returns the previous revision if set" do
      CapGun::Presenter.new({:previous_revision => "100"}).previous_revision.should == "100"
    end

  end

  describe "repository" do

    it "returns the :repository_url variable if set" do
      CapGun::Presenter.new({:repository_url => "foo"}).repository.should == "foo"
    end

    it "returns the :repository variable otherwise" do
      CapGun::Presenter.new({:repository => "bar"}).repository.should == "bar"
    end

  end

end