#!/usr/bin/env ruby
require 'rubygems'
require 'bundler/setup'

require 'fileutils'
require 'term/ansicolor'
extend Term::ANSIColor

require 'rubyapp'

def usage
  <<-USAGE
usage: bundle exec rubyapp <command> <arguments>

Available commands include:
  create_application    Create a basic application in the folder <arguments>.
  create_page           Create a baisc page consisting of .rb, .html, .css. and .js files
  
USAGE
end

def create_folder(application, path)
  print "Creating #{path.sub(FileUtils.pwd, '.')} ... "
  if File.exists?(path)
    puts "#{bold}#{red}exists#{reset}"
  else
    FileUtils.mkdir(path)
    puts "#{bold}#{green}created#{reset}"
  end
end

def copy_file(application, source_path, destination_path)
  destination_file = File.join(destination_path, File.basename(source_path))
  print "Creating #{destination_file.sub(FileUtils.pwd, '.')} ... "
  if File.exists?(destination_file)
    puts "#{bold}#{red}exists#{reset}"
  else
    FileUtils.cp(source_path, destination_path)
    system "sed 's/\$APPLICATION_DOWNCODE/#{downcode(application)}/' < '#{destination_file}' | sed 's/\$APPLICATION_UPCODE/#{upcode(application)}/' > '#{destination_file}.out'"
    FileUtils.rm(destination_file)
    FileUtils.mv("#{destination_file}.out", destination_file)
    puts "#{bold}#{green}created#{reset}"
  end
end

def copy_folder(application, source_path, destination_path)
  create_folder application, destination_path
  Dir.new(source_path).each do |item|
    if File.directory?(File.join(source_path, item))
      copy_folder application, File.join(source_path, item), File.join(destination_path, File.basename(item)) unless item.start_with?('.')
    else
      copy_file application, File.join(source_path, item), destination_path unless item.start_with?('.')
    end
  end
end

def downcode(value)

  value = value.gsub(/([A-Z]+)([A-Z][a-z])/,'\1_\2')
  value = value.gsub(/([a-z\d])([A-Z])/,'\1_\2')
  value = value.tr("-", "_")
  value.downcase

end

def upcode(value)
  value
end

case $*[0].downcase
  when 'create_application'
    application = $*[1]
    folder = File.join(FileUtils.pwd, application)
    copy_folder application, File.join(File.dirname(__FILE__), %w[.. lib rubyapp template]), folder
  else
    puts "Blank or unrecognized command '#{$*[0].downcase}'"
    puts usage
end