require "totrello/version"
require 'trello_creator'
require 'to_do_find'
require 'totrello_config'


module Totrello

  class Trelloize
    @trello
    @directory
    @config

    def initialize(directory)
      begin
        @trello = TrelloCreator.new
        @directory = directory
        totrello_config = TotrelloConfig.new(directory)
        @config = totrello_config.build_hash
      rescue
        error_data =  "It looks like you're missing some details:\n\n\n"
        error_data += "   You must define TRELLO_DEVELOPER_PUBLIC_KEY & TRELLO_MEMBER_TOKEN\n"
        error_data += "   \nYou can generate the TRELLO_DEVELOPER_PUBLIC_KEY at:\n"
        error_data += "        \nhttps://trello.com/1/appKey/generate\n"
        error_data += "   \nYou can generate the TRELLO_MEMBER_TOKEN at:\n "
        error_data += "\nhttps://trello.com/1/authorize?key=[TRELLO_DEVELOPER_PUBLIC_KEY]&name=ToTrelloGem&expiration=never&response_type=token&scope=read,write\n"
        puts error_data
      end
    end

    def find_todo_items

      puts 'Generating your board'

      puts "Creating the board: #{@config[:board_name].to_s}"

      board = create_or_gen_board(@config[:board_name].to_s)

      return -1 if board.nil?

      puts "Created or found a board with the ID: #{board.name}"


      create_cards(board)
      puts "And you're ready to go!"

    end

    def create_or_gen_board(board_name)
      board = @trello.find_board(board_name)
      board ||= @trello.create_board(board_name, 'Auto Generated by ToTrello Gem')
    end

    def create_trello_card(board, list, todo, filename)
      @trello.create_card(board, todo, gen_description(filename,todo, @config[:project_name].to_s),list)
    end

    private
    def create_cards(board)


      processes = []
      todos = get_todos

      puts 'Talking to Trello, this is the longest part...'

      todos[:todo_list].each do |tdl|
        tdl[:todos].each do |td|
          unless td == ''
            processes.append(fork {create_trello_card(board, @config[:default_list].to_s, td, tdl[:file])})
          end
        end
      end

      process_manager(processes)
    end

    private
    def process_manager(processes)
      processes.each {|pro| Process.waitpid(pro)}
    end

    private
    def get_todos
      puts 'Finding your todo items... '
      todo = ToDoFind.new
      todos = todo.search(@directory,Array( @config[:excludes]))
      puts "Woot! We've got'em"
      todos
    end



    private
    def gen_description(file, todo, project_name)
      out =  "TODO item found by ToTrello\n"
      out +=  "===========================\n"
      out += "**Project name:** #{project_name}\n"
      out += "**Filename**: #{file}\n"
      out += "**Action item**: #{todo[:todo]}\n"
      out += "**Location (at or near) line**: #{todo[:location]}\n"
    end


  end


end