#!/usr/bin/env ruby

$LOAD_PATH << File.join(File.dirname(__FILE__), '..', 'lib')
%w{rubygems extensions/string thor}.each do |lib|
  require lib
end

class SnfnGenerator < Thor
  include Thor::Actions

  desc "new NAME", "Creates new Snfn application"
  method_option :database, :aliases => "-d", :default => "postgres", :desc => "The type of database to use. Values are \"sqlite\", \"postgres\", \"mysql\", and \"mongo\". Default is \"postgres\"."
  method_option :no_heroku, :type => :boolean, :desc => "Include Heroku configuration options."
  method_option :no_database, :type => :boolean, :desc => "Do not use any database."
  method_option :redis, :type => :boolean, :desc => "Include Redis configuration options."
  def new(name)
    @name = @app_path = name.file_name
    @database = options[:database]
    @no_database = options[:no_database]
    @redis = options[:redis]
    @no_heroku = options[:no_heroku]

    create_directories
    add_templates
  end

  def self.source_root
    File.expand_path(File.join(File.dirname(__FILE__), "..", "lib", "templates"))
  end

  protected
  def create_directories
    %w{config/initializers db/migrate lib log tmp}.each do |dir|
      add_app_directory dir
    end

    %w{public/css public/js public/img views}.each do |dir|
      directory dir, File.join(@app_path, dir)
    end
  end

  def add_templates
    copy_template "app.rb", "#{@name}.rb"
    copy_template "config.ru"
    copy_template "Gemfile"
    copy_static "Procfile" unless @no_heroku
    copy_static "Rakefile"
    copy_static "README.mdown"
    copy_template "config/unicorn.rb"

    copy_static "config/redis.yml" if @redis
    copy_template "config/db.yml" unless @no_database
    copy_template "config/initializers/database.rb"
  end

  def add_app_directory(name)
    empty_directory(File.join(@app_path, name))
  end

  def copy_template(name, new_name = nil)
    new_name ||= name
    template name, File.join(@app_path, new_name)
  end

  def copy_static(name)
    copy_file name, File.join(@app_path, name)
  end
end

SnfnGenerator.start