# Git Pivotal Tracker Integration
# Copyright (c) 2013 the original author or authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

require 'git-pivotal-tracker-integration/command/base'
require 'git-pivotal-tracker-integration/command/command'
require 'git-pivotal-tracker-integration/util/git'

# The class that encapsulates finishing a Pivotal Tracker Story
class GitPivotalTrackerIntegration::Command::Finish < GitPivotalTrackerIntegration::Command::Base

  # Finishes a Pivotal Tracker story by doing the following steps:
  # * Check that the pending merge will be trivial
  # * Merge the development branch into the root branch
  # * Delete the development branch
  # * Push changes to remote
  #
  # @return [void]
  def run(argument)
    GitPivotalTrackerIntegration::Util::Git.verify_uncommitted_changes!

    github = @configuration.github

    story = @configuration.story(@project)

    print "Creating PR on Github... \n"
    pr = github.pull_requests.create(
      user: GitPivotalTrackerIntegration::Util::Git.org_name,
      repo: GitPivotalTrackerIntegration::Util::Git.repo_name,
      base: GitPivotalTrackerIntegration::Util::Git.root_branch,
      head: GitPivotalTrackerIntegration::Util::Git.branch_name,
      title: "[Delivers ##{story.id}] #{story.name}",
      body: "#{story.name}\n#{story.description}\nPivotal Task: #{story.url}"
    )
    puts 'OK'
    print 'Finishing story on Pivotal Tracker... '
    story.update(
      :current_state => 'finished',
      :owned_by => GitPivotalTrackerIntegration::Util::Git.get_config('user.name')
    )
    puts 'OK'
  end

end