require 'sinatra/base'
require 'padrino-core/support_lite' unless defined?(SupportLite)

FileSet.glob_require('padrino-core/application/*.rb', __FILE__)
FileSet.glob_require('padrino-core/*.rb', __FILE__)

# Defines our Constants
PADRINO_ENV  = ENV["PADRINO_ENV"]  ||= ENV["RACK_ENV"] ||= "development"  unless defined?(PADRINO_ENV)
PADRINO_ROOT = ENV["PADRINO_ROOT"] ||= File.dirname(Padrino.first_caller) unless defined?(PADRINO_ROOT)

module Padrino
  class ApplicationLoadError < RuntimeError #:nodoc:
  end

  class << self
    ##
    # Helper method for file references.
    #
    # ==== Examples
    #
    #   # Referencing a file in config called settings.yml
    #   Padrino.root("config", "settings.yml")
    #   # returns PADRINO_ROOT + "/config/setting.yml"
    #
    def root(*args)
      File.expand_path(File.join(PADRINO_ROOT, *args))
    end

    ##
    # Helper method that return PADRINO_ENV
    #
    def env
      @_env ||= PADRINO_ENV.to_s.downcase.to_sym
    end

    ##
    # Returns the resulting rack builder mapping each 'mounted' application
    #
    def application
      raise ApplicationLoadError, "At least one app must be mounted!" unless self.mounted_apps && self.mounted_apps.any?
      router = Padrino::Router.new
      self.mounted_apps.each { |app| app.map_onto(router) }
      router
    end

    ##
    # Default encoding to UTF8.
    #
    def set_encoding
      if RUBY_VERSION < '1.9'
        $KCODE='u'
      else
        Encoding.default_external = Encoding::UTF_8
        Encoding.default_internal = Encoding::UTF_8
      end
      nil
    end

    ##
    # Returns the used $LOAD_PATHS from padrino
    #
    def load_paths
      %w(
        lib
        models
        shared
      ).map { |dir| root(dir) }
    end

    ##
    # Return bundle status :+:locked+ if .bundle/environment.rb exist :+:unlocked if Gemfile exist
    # otherwise return nil
    #
    def bundle
      return :locked   if File.exist?(root('.bundle/environment.rb'))
      return :unlocked if File.exist?(root("Gemfile"))
    end
  end # self
end # Padrino