#!/usr/bin/env ruby

GEMFILE = <<EOF
source 'https://rubygems.org'

gem 'nephos-server'
EOF

ROUTE_RB = <<EOF
#get url: "/", controller: "MainController", method: "root"
#get url: "/add", controller: "MainController", method: "add_url"
#get url: "/rm", controller: "MainController", method: "rm_url"
EOF

def generate_controller(name, file)
  if File.exists? file
    print "The file #{file} already exists. Are you sure to erase it ? (y/N)"
    r = STDIN.gets.to_s.chomp
    raise "File #{file} already exists" unless r.match(/y(es)?/)
  end
  f = File.open(file, 'w')
  f << <<EOF
class #{name} < Nephos::Controller
  def root
    return {plain: "index"}
  end
end
EOF
end

def create_application_dir dir
  raise "Directory #{dir} already exists" if Dir.exists? dir
  Dir.mkdir dir
end

def move_to_application_dir dir
  Dir.chdir dir
end

def initialize_application
  raise "Not an empty dir" unless Dir[File.expand_path "*"].empty?
  File.write "routes.rb", ROUTE_RB
  File.write "Gemfile", GEMFILE
  Dir.mkdir "controllers"
  exec("bundle install")
end

case ARGV[0]
when "c", "controller"
  if not ARGV[1].to_s.empty?
    generate_controller("#{ARGV[1]}Controller", "src/#{ARGV[1]}.rb")
  end
when "a", "appli", "application"
  if not ARGV[1].to_s.empty?
    create_application_dir(ARGV[1])
    puts "Application #{ARGV[1]} created"
    move_to_application_dir(ARGV[1])
  end
  initialize_application
  puts "Application initialized"
else
  puts "help: generate c[ontroller] name"
end