#!/usr/bin/env ruby -W
# Copyright (c) 2015 Scott Williams

$LOAD_PATH.unshift File.expand_path(File.dirname(__FILE__) + "/../lib")

require "issue_exporter/cli"

module IssueExporting
  class Command
    include CLI

    def about
      VERSION
    end

    def usage
      <<HERE
Import issues downloaded from an archived GitHub repository into a new one.

Usage: #{$PROGRAM_NAME} [OPTION] [FILE_NAMES]... [OWNER] [REPO] [TOKEN]

--directory   DIRECTORY
                rather than read individual files, read all appropriate files
                in the provided directory

-h, --help        display this help and exit
    --version     display the version
HERE

    end

    def initialize
      super
      @directory = nil
      @directory_to_parse = nil
      @args = []
    end

    def correct_number_of_args(arg_count)
      has_directory? ? arg_count == 1 : arg_count >= 4
    end

    def define_options(opts)
      opts.on("--directory")      { |arg| @directory = arg }
    end

    def perform_action
      process_args
      if has_directory?
        importer = IssueExporting::DirectoryImporter.new @directory_to_parse
        importer.import
      else
        importer = IssueExporting::Importer.new @files, @owner, @repo, @token
        importer.import
      end
    end

    # TODO: handle directory flag
    def process_args
      if has_directory?
        @directory_to_parse = @args[0]
      else
        @files = @args[0...@args.count-3]
        @owner = @args[@args.count-3]
        @repo = @args[@args.count-2]
        @token = @args[@args.count-1]
      end
    end

    def process_input(arg, index)
      @args << arg
    end

    private
    def has_directory?
      !@directory.nil?
    end
  end
end

IssueExporting::Command.new.run