#-- encoding: UTF-8
#-- copyright
# OpenProject is a project management system.
# Copyright (C) 2012-2015 the OpenProject Foundation (OPF)
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License version 3.
#
# OpenProject is a fork of ChiliProject, which is a fork of Redmine. The copyright follows:
# Copyright (C) 2006-2013 Jean-Philippe Lang
# Copyright (C) 2010-2013 the ChiliProject Team
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
#
# See doc/COPYRIGHT.rdoc for more details.
#++

# This file includes UTF-8 "Felix Schäfer".
# We need to consider Ruby 1.9 compatibility.

require File.expand_path('../../../../../../test_helper', __FILE__)

class GitAdapterTest < ActiveSupport::TestCase
  REPOSITORY_PATH = Rails.root.to_s.gsub(%r{config\/\.\.}, '') + '/tmp/test/git_repository'

  FELIX_UTF8 = 'Felix Schäfer'
  FELIX_HEX  = "Felix Sch\xC3\xA4fer"
  CHAR_1_HEX = "\xc3\x9c"

  ## Ruby uses ANSI api to fork a process on Windows.
  ## Japanese Shift_JIS and Traditional Chinese Big5 have 0x5c(backslash) problem
  ## and these are incompatible with ASCII.
  # WINDOWS_PASS = Redmine::Platform.mswin?
  WINDOWS_PASS = false

  if File.directory?(REPOSITORY_PATH)
    def setup
      super
      @adapter = Redmine::Scm::Adapters::GitAdapter.new(
                    REPOSITORY_PATH,
                    nil,
                    nil,
                    nil,
                    'ISO-8859-1'
                    )
      assert @adapter
      @char_1        = CHAR_1_HEX.dup
      if @char_1.respond_to?(:force_encoding)
        @char_1.force_encoding('UTF-8')
      end
    end

    def test_scm_version
      to_test = { "git version 1.7.3.4\n"             => [1, 7, 3, 4],
                  "1.6.1\n1.7\n1.8"                   => [1, 6, 1],
                  "1.6.2\r\n1.8.1\r\n1.9.1"           => [1, 6, 2] }
      to_test.each do |s, v|
        test_scm_version_for(s, v)
      end
    end

    def test_branches
      assert_equal [
        'latin-1-path-encoding',
        'master',
        'test-latin-1',
        'test_branch',
      ], @adapter.branches
    end

    def test_tags
      assert_equal [
        'tag00.lightweight',
        'tag01.annotated',
      ], @adapter.tags
    end

    def test_getting_all_revisions
      assert_equal 21, @adapter.revisions('', nil, nil, all: true).length
    end

    def test_getting_certain_revisions
      assert_equal 1, @adapter.revisions('', '899a15d^', '899a15d').length
    end

    def test_revisions_reverse
      revs1 = @adapter.revisions('', nil, nil, all: true, reverse: true)
      assert_equal 21, revs1.length
      assert_equal '7234cb2750b63f47bff735edc50a1c0a433c2518', revs1[0].identifier
      assert_equal '1ca7f5ed374f3cb31a93ae5215c2e25cc6ec5127', revs1[20].identifier

      since2 = Time.gm(2010, 9, 30, 0, 0, 0)
      revs2 = @adapter.revisions('', nil, nil, all: true, since: since2, reverse: true)
      assert_equal 6, revs2.length
      assert_equal '67e7792ce20ccae2e4bb73eed09bb397819c8834', revs2[0].identifier
      assert_equal '1ca7f5ed374f3cb31a93ae5215c2e25cc6ec5127', revs2[5].identifier
    end

    def test_getting_revisions_with_spaces_in_filename
      assert_equal 1, @adapter.revisions('filemane with spaces.txt',
                                         nil, nil, all: true).length
    end

    def test_getting_revisions_with_leading_and_trailing_spaces_in_filename
      assert_equal ' filename with a leading space.txt ',
                   @adapter.revisions(' filename with a leading space.txt ',
                                      nil, nil, all: true)[0].paths[0][:path]
    end

    def test_getting_entries_with_leading_and_trailing_spaces_in_filename
      assert_equal ' filename with a leading space.txt ',
                   @adapter.entries('',
                                    '83ca5fd546063a3c7dc2e568ba3355661a9e2b2c')[3].name
    end

    def test_annotate
      annotate = @adapter.annotate('sources/watchers_controller.rb')
      assert_kind_of Redmine::Scm::Adapters::Annotate, annotate
      assert_equal 41, annotate.lines.size
      assert_equal '# This program is free software; you can redistribute it and/or',
                   annotate.lines[4].strip
      assert_equal '7234cb2750b63f47bff735edc50a1c0a433c2518',
                   annotate.revisions[4].identifier
      assert_equal 'jsmith', annotate.revisions[4].author
    end

    def test_annotate_moved_file
      annotate = @adapter.annotate('renamed_test.txt')
      assert_kind_of Redmine::Scm::Adapters::Annotate, annotate
      assert_equal 2, annotate.lines.size
    end

    def test_last_rev
      last_rev = @adapter.lastrev('README',
                                  '4f26664364207fa8b1af9f8722647ab2d4ac5d43')
      assert_equal '4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8', last_rev.scmid
      assert_equal '4a07fe31bffcf2888791f3e6cbc9c4545cefe3e8', last_rev.identifier
      assert_equal 'Adam Soltys <asoltys@gmail.com>', last_rev.author
      assert_equal '2009-06-24 05:27:38'.to_time, last_rev.time
    end

    def test_last_rev_with_spaces_in_filename
      last_rev = @adapter.lastrev('filemane with spaces.txt',
                                  'ed5bb786bbda2dee66a2d50faf51429dbc043a7b')
      str_felix_utf8 = FELIX_UTF8.dup
      str_felix_hex  = FELIX_HEX.dup
      last_rev_author = last_rev.author
      if last_rev_author.respond_to?(:force_encoding)
        last_rev_author.force_encoding('UTF-8')
      end
      assert_equal 'ed5bb786bbda2dee66a2d50faf51429dbc043a7b', last_rev.scmid
      assert_equal 'ed5bb786bbda2dee66a2d50faf51429dbc043a7b', last_rev.identifier
      assert_equal "#{str_felix_utf8} <felix@fachschaften.org>",
                   last_rev.author
      assert_equal "#{str_felix_hex} <felix@fachschaften.org>",
                   last_rev.author
      assert_equal '2010-09-18 19:59:46'.to_time, last_rev.time
    end

    # TODO: need to handle edge cases of non-binary content that isn't UTF-8
    should_eventually 'test_latin_1_path' do
      if WINDOWS_PASS
        #
      else
        p2 = "latin-1-dir/test-#{@char_1}-2.txt"
        ['4fc55c43bf3d3dc2efb66145365ddc17639ce81e', '4fc55c43bf3'].each do |r1|
          assert @adapter.diff(p2, r1)
          assert @adapter.cat(p2, r1)
          annotation = @adapter.annotate(p2, r1)
          assert annotation.present?, 'No annotation returned'
          assert_equal 1, annotation.lines.length
          ['64f1f3e89ad1cb57976ff0ad99a107012ba3481d', '64f1f3e89ad1cb5797'].each do |r2|
            assert @adapter.diff(p2, r1, r2)
          end
        end
      end
    end

    def test_entries_tag
      entries1 = @adapter.entries(nil, 'tag01.annotated')
      assert entries1
      assert_equal 3, entries1.size
      assert_equal 'sources', entries1[1].name
      assert_equal 'sources', entries1[1].path
      assert_equal 'dir', entries1[1].kind
      readme = entries1[2]
      assert_equal 'README', readme.name
      assert_equal 'README', readme.path
      assert_equal 'file', readme.kind
      assert_equal 27, readme.size
      assert_equal '899a15dba03a3b350b89c3f537e4bbe02a03cdc9', readme.lastrev.identifier
      assert_equal Time.gm(2007, 12, 14, 9, 24, 1), readme.lastrev.time
    end

    def test_entries_branch
      entries1 = @adapter.entries(nil, 'test_branch')
      assert entries1
      assert_equal 4, entries1.size
      assert_equal 'sources', entries1[1].name
      assert_equal 'sources', entries1[1].path
      assert_equal 'dir', entries1[1].kind
      readme = entries1[2]
      assert_equal 'README', readme.name
      assert_equal 'README', readme.path
      assert_equal 'file', readme.kind
      assert_equal 159, readme.size
      assert_equal '713f4944648826f558cf548222f813dabe7cbb04', readme.lastrev.identifier
      assert_equal Time.gm(2009, 6, 19, 4, 37, 23), readme.lastrev.time
    end

    def test_entries_latin_1_files
      entries1 = @adapter.entries('latin-1-dir', '64f1f3e8')
      assert entries1
      assert_equal 3, entries1.size
      f1 = entries1[1]
      assert_equal "test-#{@char_1}-2.txt", f1.name
      assert_equal "latin-1-dir/test-#{@char_1}-2.txt", f1.path
      assert_equal 'file', f1.kind
    end

    def test_entries_latin_1_dir
      if WINDOWS_PASS
        #
      else
        entries1 = @adapter.entries("latin-1-dir/test-#{@char_1}-subdir",
                                    '1ca7f5ed')
        assert entries1
        assert_equal 3, entries1.size
        f1 = entries1[1]
        assert_equal "test-#{@char_1}-2.txt", f1.name
        assert_equal "latin-1-dir/test-#{@char_1}-subdir/test-#{@char_1}-2.txt", f1.path
        assert_equal 'file', f1.kind
      end
    end

    private

    def test_scm_version_for(scm_command_version, version)
      @adapter.class.should_receive(:scm_version_from_command_line).and_return(scm_command_version)
      assert_equal version, @adapter.class.scm_command_version
    end

  else
    puts 'Git test repository NOT FOUND. Skipping unit tests !!!'
    def test_fake; assert true end
  end
end