require 'colorize'
require 'oj'
require 'net/http'
require_relative '../util/submodule'
require_relative '../mr/token'
require_relative '../mr/email'

module GGSM
  module MR
    include Submodule
    include Token
    include Email

    @@current_branch = ''
    @@target_branch = ''
    @@pwd = ''
    @@token = ''
    @@msg = ''
    @@urls = {}

    def mr_flow(target_branch, msg)
      check_submodule

      @@current_branch = get_current_branch
      @@target_branch = target_branch

      if target_branch.start_with?('origin/')
        @@target_branch = target_branch.split('origin/')[1]
      end

      @@pwd = Dir.pwd
      @@token = init_check_token
      @@msg = msg

      foreach_module {|sub|
        create_mr(sub)
      }

      puts '==> 进入主工程：'.yellow
      create_mr('主工程')

      content = ''
      @@urls.each do |sub, url|
        content = " #{content}\n #{sub}: #{url}"
      end

      if content != ''
        send_email(@@msg, content)
      end
    end

    def init_check_token
      token = ''
      path = '.git/ggsm/TOKEN'
      unless check_token
        system "vim #{path}"

        result = IO.read(path).split('# 请输入GitLab private-token')

        if result.length > 1
          token = result[0]
        end
      end

      if token == ''
        token = IO.read(path).split('# 请输入GitLab private-token')[0]
      end

      if token == ''
        puts '请输入GitLab private-token'.red
        exit 1
      end

      return token
    end

    def create_mr(sub)
      if get_head_commit("origin/#{@@current_branch}") != get_head_commit("origin/#{@@target_branch}")
        # origin	git@git.souche.com:Destiny_Android/Destiny_Android.git (push)
        # origin	http://git.souche.com/Destiny_Android/Mine.git (push)
        result = `git remote -v | grep push`
        project_name = result.split('.com/')[1]
        if project_name == nil || project_name.strip == ''
          project_name = result.split('.com:')[1]
        end

        if project_name != nil
          project_name = project_name.split('.git')[0].gsub('/', '%2F')

          begin
            params = {}
            params['source_branch'] = @@current_branch
            params['target_branch'] = @@target_branch
            params['title'] = @@msg
            uri = URI.parse("http://git.souche.com/api/v4/projects/#{project_name}/merge_requests?private_token=#{@@token}")
            response = Net::HTTP.post_form(uri, params)
            result = Oj.load(response.body)

            if result['message'] == '404 Project Not Found'
              Dir.chdir @@pwd
              `rm -rf .git/ggsm/TOKEN`
              @@token = init_check_token
              create_mr(sub)
              return
            end

            if Net::HTTPSuccess
              mr_url = result['web_url']
              if mr_url != nil
                @@urls[sub] = mr_url
                puts mr_url.blue
              end
            end
          rescue => e
            puts "error: #{e}".red
            exit 1
          end
        end
      end
    end
  end
end