require File.dirname(__FILE__) + "/spec_helper"
require "piston/commands/import"
require "piston/commands/update"

describe Piston::Commands::Update, "#run" do
  it_should_behave_like "An upstream repository with no copies/renames"

  it "should find all pistonized folders and update them in turn"
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
  end

  after do
    @wc.destroy!
  end

  it "should receive new folders" do
    @upwc.mkdir("lib")
    @upwc.create!("lib/calc.c", "int calc() { /* TBD */ }")
    @upwc.commit
    @command.run
    status = @wc.status.map {|st| st.sub(@wc.path, "")}
    status.sort.should == [
        " M     /vendor",
        "A      /vendor/lib",
        "A      /vendor/lib/calc.c",
        "A      /vendor/LICENSE",
        "A      /vendor/README",
        "M      /vendor/main.c",
        "M      /vendor/CHANGELOG"].sort 
  end
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
  end

  after do
    @wc.destroy!
  end

  it "should delete deleted files" do
    @upwc.delete("CHANGELOG")
    @upwc.commit
    @command.run
    status = @wc.status.map {|st| st.sub(@wc.path, "")}
    status.should include("D      /vendor/CHANGELOG") 
  end
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
  end

  after do
    @wc.destroy!
  end

  it "should move files" do
    @upwc.move("CHANGELOG", "Changelog.txt")
    @upwc.commit
    @command.run
    status = @wc.status.map {|st| st.sub(@wc.path, "")}
    status.should include("D      /vendor/CHANGELOG") 
    status.should include("A  +   /vendor/Changelog.txt") 
  end
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
  end

  after do
    @wc.destroy!
  end

  it "should copy files" do
    @upwc.copy("CHANGELOG", "old-changelog.txt")
    @upwc.commit
    @command.run
    status = @wc.status.map {|st| st.sub(@wc.path, "")}
    status.should include("A  +   /vendor/old-changelog.txt") 
  end
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
  end

  after do
    @wc.destroy!
  end

  it "should reject the update if the repository UUID is not as expected" do
    @vendor.propset(Piston::REMOTE_UUID, "some-random-string")
    lambda { @command.run }.should raise_error(Piston::RepositoryUuidChanged)
  end

  it "should reject the update when the repository is gone" do
    @upstream.destroy!
    lambda { @command.run }.should raise_error(Piston::UnknownRepository)
  end
end

describe Piston::Commands::Update, "#run('vendor')" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
    @command.run
  end

  after do
    @wc.destroy!
  end

  it "should receive vendor's HEAD changes" do
    status = @wc.status
    status.map! do |st|
      st.sub(@wc.path, "")
    end
    status.sort.should == [
        " M     /vendor",
        "A      /vendor/LICENSE",
        "A      /vendor/README",
        "M      /vendor/main.c",
        "M      /vendor/CHANGELOG"].sort 
  end

  it "should record new vendor's HEAD" do
    @vendor.propget(Piston::REMOTE_REVISION).to_i.should == @upstream.youngest
  end

  it "should record new local HEAD (unchanged, since no changes in local repos)" do
    @vendor.propget(Piston::LOCAL_REVISION).to_i.should == 0
  end
end

describe Piston::Commands::Update, "#run('vendor') when local modifications have been made" do
  it_should_behave_like "An upstream repository with no copies/renames"
  it_should_behave_like "A working copy against a local repository"

  before do
    Piston::Commands::Import.new(@upstream.url, @wc.wc_path("vendor"), :revision => 1, :logger => logger).run
    @wc.commit "Pistonized vendor@r1"
    @vendor = @wc.down("vendor")

    @vendor.edit!("main.c", <<EOF
/**
 *
 * main.c:  the main program file.
 * 
 * This program does absolutely nothing.
 *
 */
#include <stdio.h>

int main(int argc, char** argv) {
  return 0;
}
EOF
)
    @vendor.commit
    @vendor.update

    @command = Piston::Commands::Update.new(@wc.wc_path("vendor"), :logger => logger)
    @command.run
  end

  it "should record new local HEAD" do
    @vendor.propget(Piston::LOCAL_REVISION).to_i.should == 2
  end

  it "should merge local modifications" do
    File.read(@vendor.wc_path("main.c")).should == <<EOF
/**
 *
 * main.c:  the main program file.
 * 
 * This program does absolutely nothing.
 *
 */
#include <stdio.h>

/** Main program file */
int main(int argc, char** argv) {
  return do_work(argc);
}

int do_work(int argc) {
  return 2*argc;
}
EOF
  end
end