class Fanforce::PluginFactory::CLI::Scaffolding
  include Fanforce::PluginFactory::CLI::Utils

  require_relative 'scaffolding_file'

  attr_reader :plugin

  def initialize(plugin)
    @plugin = plugin
    error 'Your .fanforce-plugin-factory file must specify a default fanforce_version_dependency' if !config[:fanforce_version_dependency]
  end

  def setup
    if File.directory?("#{plugin.dir}/tmp")
      log "#{'Found  '.format(:green,:bold)} #{plugin._id}/tmp/"
    else
      Dir.mkdir("#{plugin.dir}/tmp")
      log "#{'Created'.format(:green,:bold)} #{plugin._id}/tmp/"
    end
    files.each {|file| file.create }
  end

  def update
    files_updated = false
    files.each {|file| files_updated = true if file.update }
    return files_updated
  end

  def metadata
    # status = :exists, :current, :missing, :previous, :diverged, :forked
    change_data = {}
    files.each do |file|
      if File.directory?(file.scaffold_filepath)
        directory_exists = File.directory?(file.filepath)
        change_data[file.filepath] = {status: directory_exists ? :exists : :missing}
        if directory_exists and File.exists?("#{file.scaffold_filepath}initialize.txt") and Dir.glob("#{file.filepath}*").size == 0
          change_data["#{file.filepath}initialize.txt"] = {status: :missing}
        end
        next
      end

      status = file.status
      diff = file.diff_changes if [:previous,:diverged].include?(status)
      insertions = 0
      deletions = 0
      diff.lines do |line|
        next deletions += 1 if line[0] == '-'
        next insertions += 1 if line[0] == '+'
      end if diff

      change_data[file.filepath] = {
          status: status,
          diff: diff,
          insertions: insertions,
          deletions: deletions
      }
    end
    return change_data
  end

  ######################################################################################################################

  def files
    Dir.glob("#{self.class.dir}/**/*", File::FNM_DOTMATCH).inject([]) do |files, scaffold_filepath|
      next files if scaffold_filepath =~ /\.registry$/
      next files if scaffold_filepath =~ /\/initialize\.txt$/
      next files if scaffold_filepath =~ /\/\.\.?$/
      scaffold_filepath = "#{scaffold_filepath}/" if File.directory?(scaffold_filepath) and scaffold_filepath !~ /\/$/
      files << Fanforce::PluginFactory::CLI::ScaffoldingFile.new(scaffold_filepath, plugin)
    end
  end

  ######################################################################################################################

  def self.dir
    File.expand_path('scaffolding', Fanforce::PluginFactory.base_dir)
  end

end