#-*- coding: utf-8 -*-

require 'nos_oignons/git'
require 'nos_oignons/mailman'
require 'nos_oignons/member'
require 'nos_oignons/reminder'
require 'nos_oignons/reminder_db'

module NosOignons
  BOARD_EMAIL = 'ca@nos-oignons.net'
  MEMBER_MAILING_LIST = 'ag'

  # The following class methods are all meant to be called as command-line scripts
  class << self
    def list_emails!
      NosOignons::Member.all.each do |member|
        if member.up_to_date?
          puts member.email
        end
      end
    end

    def update_ag_subscribers!
      list = NosOignons::MEMBER_MAILING_LIST

      current_emails = NosOignons::Mailman.list_members(list)
      uptodate_emails = NosOignons::Member.all.select(&:up_to_date?).collect(&:email)

      NosOignons::Mailman.add_members(list, uptodate_emails - current_emails)
      NosOignons::Mailman.remove_members(list, current_emails - uptodate_emails)
    end

    def send_membership_reminders!
      today = Time.now.to_date
      NosOignons::Member.all.select(&:up_to_date?).each do |member|
        NosOignons::Reminder.all.sort_by(&:days).reverse.each do |reminder|
          anniversary = Time.new(today.year, member.joined_on.month,
                                 member.joined_on.day).to_date

          next if member.membership_fee_paid_on > anniversary
          next if member.membership_fee_paid_on > today - reminder.days
          next if anniversary > today - reminder.days
          next if member.reminded_on && member.reminded_on >= today

          member.remind(reminder)
          break
        end
      end
    end

    def pre_commit_hook!
      if system('git rev-parse --quiet --verify HEAD >/dev/null')
        against = 'HEAD'
      else
        # Initial commit: diff against an empty tree object
        against = '4b825dc642cb6eb9a060e54bf8d69288fbee4904'
      end

      IO.popen(['git', 'diff-index', '--cached', '--name-status', against]) do |io|
        NosOignons::Git.handle_modified_files(io) do |file|
          next unless file.start_with?("#{NosOignons::MEMBERS_DB_DIR}/")
          begin
            # Use empty ref to get the index
            NosOignons::Member.read_from_git('', file)
          rescue ArgumentError
            $stderr.puts "Désolé : #{file} n'a pas le bon format !"
            exit 1
          end
        end
      end
    end

    def pre_receive_hook!(stdin)
      stdin.readlines.each do |ref_line|
        old_value, new_value, ref_name = ref_line.rstrip.split(' ', 3)
        IO.popen(['git', 'diff', '--name-status', "#{old_value}..#{new_value}"]) do |io|
          NosOignons::Git.handle_modified_files(io) do |file|
            next unless file.start_with?("#{NosOignons::MEMBERS_DB_DIR}/")
            begin
              NosOignons::Member.read_from_git(new_value, file)
            rescue ArgumentError
              $stderr.puts "Désolé : #{file} n'a pas le bon format !"
              exit 1
            end
          end
        end
      end
    end
  end
end