#-- encoding: UTF-8
#-- copyright
# ChiliProject is a project management system.
#
# Copyright (C) 2010-2011 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.
#
# See doc/COPYRIGHT.rdoc for more details.
#++
require File.expand_path('../../test_helper', __FILE__)

class VersionTest < ActiveSupport::TestCase
  fixtures :all

  def setup
  end

  def test_create
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => Project.find(1), :name => '1.1', :effective_date => '2011-03-25' }
    end)
    assert v.save
    assert_equal 'open', v.status
  end

  def test_invalid_effective_date_validation
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => Project.find(1), :name => '1.1', :effective_date => '99999-01-01' }
    end)
    assert !v.save
    assert_include v.errors[:effective_date], I18n.translate('activerecord.errors.messages.not_a_date')
  end

  context "#start_date" do
    context "with no value saved" do
      should "be the date of the earlist issue" do
        project = Project.find(1)
        (v = Version.new.tap do |v|
          v.force_attributes = { :project => project, :name => 'Progress' }
        end).save!
        add_issue(v, :estimated_hours => 10, :start_date => '2010-03-01')
        Issue.generate_for_project!(project, :subject => 'not assigned', :start_date => '2010-01-01')

        assert_equal '2010-03-01', v.start_date.to_s
      end
    end

    context "with a value saved" do
      should "be the value" do
        project = Project.find(1)
        (v = Version.new.tap do |v|
          v.force_attributes = { :project => project, :name => 'Progress', :start_date => '2010-01-05' }
        end).save!

        add_issue(v, :estimated_hours => 10, :start_date => '2010-03-01')

        assert_equal '2010-01-05', v.start_date.to_s
      end
    end

  end


  def test_progress_should_be_0_with_no_assigned_issues
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    assert_equal 0, v.completed_pourcent
    assert_equal 0, v.closed_pourcent
  end

  def test_progress_should_be_0_with_unbegun_assigned_issues
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v)
    add_issue(v, :done_ratio => 0)
    assert_progress_equal 0, v.completed_pourcent
    assert_progress_equal 0, v.closed_pourcent
  end

  def test_progress_should_be_100_with_closed_assigned_issues
    project = Project.find(1)
    status = IssueStatus.find(:first, :conditions => {:is_closed => true})
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v, :status => status)
    add_issue(v, :status => status, :done_ratio => 20)
    add_issue(v, :status => status, :done_ratio => 70, :estimated_hours => 25)
    add_issue(v, :status => status, :estimated_hours => 15)
    assert_progress_equal 100.0, v.completed_pourcent
    assert_progress_equal 100.0, v.closed_pourcent
  end

  def test_progress_should_consider_done_ratio_of_open_assigned_issues
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v)
    add_issue(v, :done_ratio => 20)
    add_issue(v, :done_ratio => 70)
    assert_progress_equal (0.0 + 20.0 + 70.0)/3, v.completed_pourcent
    assert_progress_equal 0, v.closed_pourcent
  end

  def test_progress_should_consider_closed_issues_as_completed
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v)
    add_issue(v, :done_ratio => 20)
    add_issue(v, :status => IssueStatus.find(:first, :conditions => {:is_closed => true}))
    assert_progress_equal (0.0 + 20.0 + 100.0)/3, v.completed_pourcent
    assert_progress_equal (100.0)/3, v.closed_pourcent
  end

  def test_progress_should_consider_estimated_hours_to_weigth_issues
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v, :estimated_hours => 10)
    add_issue(v, :estimated_hours => 20, :done_ratio => 30)
    add_issue(v, :estimated_hours => 40, :done_ratio => 10)
    add_issue(v, :estimated_hours => 25, :status => IssueStatus.find(:first, :conditions => {:is_closed => true}))
    assert_progress_equal (10.0*0 + 20.0*0.3 + 40*0.1 + 25.0*1)/95.0*100, v.completed_pourcent
    assert_progress_equal 25.0/95.0*100, v.closed_pourcent
  end

  def test_progress_should_consider_average_estimated_hours_to_weigth_unestimated_issues
    project = Project.find(1)
    (v = Version.new.tap do |v|
      v.force_attributes = { :project => project, :name => 'Progress' }
    end).save!
    add_issue(v, :done_ratio => 20)
    add_issue(v, :status => IssueStatus.find(:first, :conditions => {:is_closed => true}))
    add_issue(v, :estimated_hours => 10, :done_ratio => 30)
    add_issue(v, :estimated_hours => 40, :done_ratio => 10)
    assert_progress_equal (25.0*0.2 + 25.0*1 + 10.0*0.3 + 40.0*0.1)/100.0*100, v.completed_pourcent
    assert_progress_equal 25.0/100.0*100, v.closed_pourcent
  end

  context "#behind_schedule?" do
    setup do
      ProjectCustomField.destroy_all # Custom values are a mess to isolate in tests
      @project = Project.generate!(:identifier => 'test0')
      @project.trackers << Tracker.generate!

      (@version = Version.new.tap do |v|
        v.force_attributes = { :project => @project, :effective_date => nil, :name => "test" }
      end).save!
    end

    should "be false if there are no issues assigned" do
      @version.update_attribute(:effective_date, Date.yesterday)
      assert_equal false, @version.behind_schedule?
    end

    should "be false if there is no effective_date" do
      assert_equal false, @version.behind_schedule?
    end

    should "be false if all of the issues are ahead of schedule" do
      @version.update_attribute(:effective_date, 7.days.from_now.to_date)
      @version.fixed_issues = [
                               Issue.generate_for_project!(@project, :start_date => 7.days.ago, :done_ratio => 60), # 14 day span, 60% done, 50% time left
                               Issue.generate_for_project!(@project, :start_date => 7.days.ago, :done_ratio => 60) # 14 day span, 60% done, 50% time left
                              ]
      assert_equal 60, @version.completed_pourcent
      assert_equal false, @version.behind_schedule?
    end

    should "be true if any of the issues are behind schedule" do
      @version.update_attribute(:effective_date, 7.days.from_now.to_date)
      @version.fixed_issues = [
                               Issue.generate_for_project!(@project, :start_date => 7.days.ago, :done_ratio => 60), # 14 day span, 60% done, 50% time left
                               Issue.generate_for_project!(@project, :start_date => 7.days.ago, :done_ratio => 20) # 14 day span, 20% done, 50% time left
                              ]
      assert_equal 40, @version.completed_pourcent
      assert_equal true, @version.behind_schedule?
    end

    should "be false if all of the issues are complete" do
      @version.update_attribute(:effective_date, 7.days.from_now.to_date)
      @version.fixed_issues = [
                               Issue.generate_for_project!(@project, :start_date => 14.days.ago, :done_ratio => 100, :status => IssueStatus.find(5)), # 7 day span
                               Issue.generate_for_project!(@project, :start_date => 14.days.ago, :done_ratio => 100, :status => IssueStatus.find(5)) # 7 day span
                              ]
      assert_equal 100, @version.completed_pourcent
      assert_equal false, @version.behind_schedule?

    end
  end

  context "#estimated_hours" do
    setup do
      (@version = Version.new.tap do |v|
        v.force_attributes = { :project_id => 1, :name => '#estimated_hours' }
      end).save!
    end

    should "return 0 with no assigned issues" do
      assert_equal 0, @version.estimated_hours
    end

    should "return 0 with no estimated hours" do
      add_issue(@version)
      assert_equal 0, @version.estimated_hours
    end

    should "return the sum of estimated hours" do
      add_issue(@version, :estimated_hours => 2.5)
      add_issue(@version, :estimated_hours => 5)
      assert_equal 7.5, @version.estimated_hours
    end

    should "return the sum of leaves estimated hours" do
      parent = add_issue(@version)
      add_issue(@version, :estimated_hours => 2.5, :parent_issue_id => parent.id)
      add_issue(@version, :estimated_hours => 5, :parent_issue_id => parent.id)
      assert_equal 7.5, @version.estimated_hours
    end
  end

  test "should update all issue's fixed_version associations in case the hierarchy changed XXX" do
    User.current = User.find(1) # Need the admin's permissions

    @version = Version.find(7)
    # Separate hierarchy
    project_1_issue = Issue.find(1)
    project_1_issue.fixed_version = @version
    assert project_1_issue.save, project_1_issue.errors.full_messages.to_s

    project_5_issue = Issue.find(6)
    project_5_issue.fixed_version = @version
    assert project_5_issue.save

    # Project
    project_2_issue = Issue.find(4)
    project_2_issue.fixed_version = @version
    assert project_2_issue.save

    # Update the sharing
    @version.sharing = 'none'
    assert @version.save

    # Project 1 now out of the shared scope
    project_1_issue.reload
    assert_equal nil, project_1_issue.fixed_version, "Fixed version is still set after changing the Version's sharing"

    # Project 5 now out of the shared scope
    project_5_issue.reload
    assert_equal nil, project_5_issue.fixed_version, "Fixed version is still set after changing the Version's sharing"

    # Project 2 issue remains
    project_2_issue.reload
    assert_equal @version, project_2_issue.fixed_version
  end

  private

  def add_issue(version, attributes={})
    (v = Issue.new.tap do |v|
      v.force_attributes = { :project => version.project,
                             :fixed_version => version,
                             :subject => 'Test',
                             :author => User.first,
                             :tracker => version.project.trackers.first }.merge(attributes)
    end).save!

    v
  end

  def assert_progress_equal(expected_float, actual_float, message="")
    assert_in_delta(expected_float, actual_float, 0.000001, message="")
  end
end