require 'plezi/builders/builder'
module Plezi


	class AppBuilder
		def initialize
			@end_comments = []
			@app_tree ||= {}
			@root = ::Plezi::Builder::GEM_ROOT
		end
		def app_tree
			@app_tree ||= {}
		end
		def build_mini app_name = ARGV[1]
			require 'plezi/version'
			app_tree["#{app_name}"] ||= IO.read( File.join(@root, "resources" ,"mini_exec.rb")).gsub('appname', app_name)
			app_tree["#{app_name}.rb"] ||= IO.read( File.join(@root, "resources" ,"mini_app.rb")).gsub('appname', app_name).gsub('appsecret', "#{app_name}_#{SecureRandom.hex}")
			app_tree["Procfile"] ||= String.new
			app_tree["Procfile"] << "\nweb: bundle exec ruby ./#{app_name} -p $PORT\n"		
			app_tree["Gemfile"] ||= String.new
			app_tree["Gemfile"] << "source 'https://rubygems.org'\n\n####################\n# core gems\n\n# include the basic plezi framework and server\ngem 'plezi', '~> #{Plezi::VERSION}'\n"
			app_tree["Gemfile"] << "\n\n\nruby '#{RUBY_VERSION}'\n"
			app_tree["templates"] ||= {}
			app_tree["templates"]["404.html.erb"] ||= IO.read(File.join(@root, "resources" ,"404.erb"))
			app_tree["templates"]["500.html.erb"] ||= IO.read(File.join(@root, "resources" ,"500.erb"))
			app_tree["templates"]["welcome.html.erb"] ||= IO.read(File.join(@root, "resources" ,"mini_welcome_page.html")).gsub('appname', app_name)
			app_tree["assets"] ||= {}
			app_tree["assets"]["websocket.js"] ||= IO.read(File.join(@root, "resources" ,"websockets.js")).gsub('appname', app_name)
			finalize app_name
		end

		def build app_name = ARGV[1]
			require 'plezi/version'
			# plezi run script
			app_tree["#{app_name}"] ||= IO.read File.join(@root,"resources" ,"code.rb")

			# set up application files
			app_tree["app"] ||= {}
			app_tree["app"]["controllers"] ||= {}
			app_tree["app"]["controllers"]["sample_controller.rb"] ||= IO.read(File.join(@root,"resources" ,"controller.rb"))
			app_tree["app"]["models"] ||= {}
			app_tree["app"]["views"] ||= {}

			# set up templates for status error codes
			app_tree["app"]["views"]["404.html"] ||= IO.read(File.join(@root,"resources" ,"404.html"))
			app_tree["app"]["views"]["500.html"] ||= IO.read(File.join(@root,"resources" ,"500.html"))
			app_tree["app"]["views"]["404.html.erb"] ||= IO.read(File.join(@root,"resources" ,"404.erb"))
			app_tree["app"]["views"]["500.html.erb"] ||= IO.read(File.join(@root,"resources" ,"500.erb"))
			app_tree["app"]["views"]["404.html.slim"] ||= IO.read(File.join(@root,"resources" ,"404.slim"))
			app_tree["app"]["views"]["500.html.slim"] ||= IO.read(File.join(@root,"resources" ,"500.slim"))
			app_tree["app"]["views"]["404.html.haml"] ||= IO.read(File.join(@root,"resources" ,"404.haml"))
			app_tree["app"]["views"]["500.html.haml"] ||= IO.read(File.join(@root,"resources" ,"500.haml"))

			# set up the assets folder
			app_tree["assets"] ||= {}
			app_tree["assets"]["stylesheets"] ||= {}
			app_tree["assets"]["javascripts"] ||= {}
			app_tree["assets"]["javascripts"]["websocket.js"] ||= IO.read(File.join(@root,"resources" ,"websockets.js")).gsub('appname', app_name)
			app_tree["assets"]["welcome.html"] ||= IO.read(File.join(@root,"resources" ,"welcome_page.html")).gsub('appname', app_name)

			# app core files.
			app_tree["initialize.rb"] ||= IO.read File.join(@root,"resources" ,"initialize.rb").gsub('appname', app_name)
			app_tree["routes.rb"] ||= IO.read File.join(@root,"resources" ,"routes.rb")
			app_tree["rakefile"] ||= IO.read File.join(@root,"resources" ,"rakefile")
			app_tree["Procfile"] ||= ""
			app_tree["Procfile"] << "\nweb: bundle exec ruby ./#{app_name} -p $PORT\n"
			app_tree["Gemfile"] ||= ''
			app_tree["Gemfile"] << "source 'https://rubygems.org'\n\n####################\n# core gems\n\n# include the basic plezi framework and server\ngem 'plezi', '~> #{Plezi::VERSION}'\n"
			app_tree["Gemfile"] << IO.read( File.join(@root,"resources" ,"Gemfile"))
			app_tree["Gemfile"] << "\n\n\nruby '#{RUBY_VERSION}'\n"

			# set up config files
			app_tree["initialize"] ||= {}
			app_tree["initialize"]["oauth.rb"] ||= IO.read(File.join(@root,"resources" ,"oauth_config.rb"))
			app_tree["initialize"]["active_record.rb"] ||= IO.read(File.join(@root,"resources" ,"db_ac_config.rb"))
			app_tree["initialize"]["sequel.rb"] ||= IO.read(File.join(@root,"resources" ,"db_sequel_config.rb"))
			app_tree["initialize"]["datamapper.rb"] ||= IO.read(File.join(@root,"resources" ,"db_dm_config.rb"))
			app_tree["initialize"]["haml.rb"] ||= IO.read(File.join(@root,"resources" ,"haml_config.rb"))
			app_tree["initialize"]["slim.rb"] ||= IO.read(File.join(@root,"resources" ,"slim_config.rb"))
			app_tree["initialize"]["i18n.rb"] ||= IO.read(File.join(@root,"resources" ,"i18n_config.rb"))
			app_tree["initialize"]["redis.rb"] ||= (IO.read(File.join(@root,"resources" ,"redis_config.rb"))).gsub('appsecret', "#{app_name}_#{SecureRandom.hex}")

			#set up database stub folders
			app_tree["db"] ||= {}
			app_tree["db"]["migrate"] ||= {}
			app_tree["db"]["fixtures"] ||= {}
			app_tree["db"]["config.yml"] ||= IO.read(File.join(@root,"resources" ,"database.yml"))

			#set up the extras folder, to be filled with future goodies.
			# app_tree["extras"] ||= {}
			# app_tree["extras"]["config.ru"] ||= IO.read File.join(@root,"resources" ,"config.ru")

			#set up I18n stub
			app_tree["locales"] ||= {}
			app_tree["locales"]["en.yml"] ||= IO.read File.join(@root,"resources" ,"en.yml")

			# create library, log and tmp folders
			app_tree["logs"] ||= {}
			app_tree["lib"] ||= {}
			app_tree["tmp"] ||= {}


			# set up a public folder for static file service
			app_tree["public"] ||= {}		
			app_tree["public"]["assets"] ||= {}		
			app_tree["public"]["assets"]["stylesheets"] ||= {}		
			app_tree["public"]["assets"]["javascripts"] ||= {}		
			app_tree["public"]["images"] ||= {}
			finalize app_name
		end
		def finalize app_name = ARGV[1]
			begin
				Dir.mkdir app_name
				puts "created the #{app_name} application directory.".green
			rescue Exception => e
				puts "the #{app_name} application directory exists - trying to rebuild (no overwrite).".pink
			end
			Dir.chdir app_name
			puts "starting to write template data...".red
			puts ""
			Builder.write_files app_tree
			File.chmod 0775, "#{app_name}" rescue true
			puts "done."
			puts "\n#{@end_comments.join("\n")}" unless @end_comments.empty?
			puts ""
			puts "please change directory into the app directory: cd #{app_name}"
			puts ""
			puts "run the #{app_name} app using: ./#{app_name} or using: plezi s"
			puts ""
		end
	end
end