class Desert::Manager

# File lib/desert/manager.rb, line 4
def instance
  @instance ||= new
end

# File lib/desert/manager.rb, line 17
def initialize
  @plugins = []
  @plugins_in_registration = []
end

# File lib/desert/manager.rb, line 10
def method_missing(method_name, *args, &block)
  instance.__send__(method_name, *args, &block)
end

# File lib/desert/manager.rb, line 111
def all_files
  Desert::Manager.load_paths.inject([]) do |all, load_path|
    all |= Dir["#{load_path}/**/*.rb"]
    all
  end
end

# File lib/desert/manager.rb, line 91
def directory_on_load_path?(dir_suffix)
  Desert::Manager.load_paths.each do |path|
    return true if File.directory?(File.join(path, dir_suffix))
  end
  return false
end

# File lib/desert/manager.rb, line 80
def files_on_load_path(file)
  desert_file_exists = false
  files = []
  load_paths.each do |path|
    full_path = File.join(path, file)
    full_path << '.rb' unless File.extname(full_path) == '.rb'
    files << full_path if File.exists?(full_path)
  end
  files
end

# File lib/desert/manager.rb, line 63
def find_plugin(name_or_directory)
  name = File.basename(File.expand_path(name_or_directory))
  plugins.find do |plugin|
    plugin.name == name
  end
end

# File lib/desert/manager.rb, line 98
def layout_paths
  layout_paths = plugins.reverse.collect do |plugin|
    plugin.layouts_path
  end
  layout_paths
end

# File lib/desert/manager.rb, line 26
def load_paths
  paths = []
  plugin_paths.each do |component_root|
    paths << File.join(component_root, 'app')
    paths << File.join(component_root, 'app','models')
    paths << File.join(component_root, 'app','controllers')
    paths << File.join(component_root, 'app','helpers')
    paths << File.join(component_root, 'app','sweepers')
    paths << File.join(component_root, 'lib')
  end
  dependencies.load_paths.reverse_each do |path|
    paths << File.expand_path(path)
  end
  paths.uniq!
  paths
end

# File lib/desert/manager.rb, line 70
def plugin_exists?(name_or_directory)
  !find_plugin(name_or_directory).nil?
end

# File lib/desert/manager.rb, line 74
def plugin_path(name)
  plugin = find_plugin(name)
  return nil unless plugin
  plugin.path
end

# File lib/desert/manager.rb, line 22
def plugins
  @plugins.dup
end

# File lib/desert/manager.rb, line 43
def register_plugin(plugin_path)
  plugin = Plugin.new(plugin_path)
  @plugins_in_registration << plugin

  yield if block_given?

  dependencies.load_paths << plugin.models_path
  dependencies.load_paths << plugin.controllers_path
  dependencies.load_paths << plugin.helpers_path

  @plugins_in_registration.pop

  if existing_plugin = find_plugin(plugin.name)
    return existing_plugin
  end

  @plugins << plugin
  plugin
end

# File lib/desert/manager.rb, line 105
def require_all_files
  all_files.each do |file|
    require file
  end
end

# File lib/desert/manager.rb, line 119
def dependencies
  @dependencies ||= ActiveSupport.const_defined?(:Dependencies) ? ActiveSupport::Dependencies : Dependencies
end

# File lib/desert/manager.rb, line 123
def plugin_paths
  plugins_and_app.collect { |plugin| plugin.path }
end

# File lib/desert/manager.rb, line 127
def plugins_and_app
  plugins + @plugins_in_registration + [Plugin.new(RAILS_ROOT)]
end