#! /usr/bin/env ruby

require 'bundler'

begin
  Bundler.setup :default, :test
  Bundler.require :default, :test
rescue Bundler::GemfileNotFound
  # no-op: we might be installed as a system gem
end

if ["routes","docs","console"].include? ARGV[0]
  require 'rake'
  require 'praxis'
  require 'praxis/tasks'
  load 'Rakefile' # Ensure that we read the App's Rakefile, to pickup any definitions etc.

  case ARGV[0]
    when "routes"
      Rake::Task['praxis:routes'].invoke(ARGV[1])
    when "docs"
      task_name = case ARGV[1]
      when nil,'browser'
        'praxis:docs:preview'
      when 'generate'
        'praxis:docs:generate'
      when 'package'
        'praxis:docs:package'        
      end
      Rake::Task[task_name].invoke
    when "console"
      Rake::Task['praxis:console'].invoke
  end
  exit 0
end
# Thor tasks
path_to_praxis = File.expand_path(File.dirname(File.dirname(__FILE__)))
path_to_loader = '%s/tasks/loader.thor' % path_to_praxis

load path_to_loader

class PraxisGenerator < Thor
  
  # Include a few fake thor action descriptions (for the rake tasks above) so they can show up in the same usage messages
  desc "routes [json]", "Prints the route table of the application. Defaults to table format, but can produce json"
  def routes
  end

  desc "docs [generate|browser|package]", <<-EOF  
  Generates API documentation and a Web App to inspect it
    generate - Generates the JSON docs
    browser  - (default) Generates JSON docs, and automatically starts a Web app to browse them.
    package  - Generates JSON docs, and neatly packages all the necessary static files ready for exporting the browsing app.
  EOF
  def docs
  end
  
  desc "console", "Open a console to the application, with its environment loaded"
  def console
  end

  # Simple helper to go get the existing description for the real action
  # Usage must still be provided rather than retrieved (since it is not a 
  # straight "usage" from the remote action when arguments are defined )
  def self.desc_for( usage_string, klass, action_name, description_prefix="")
    action_name = action_name.to_s
    cmd = klass.commands[action_name]
    raise "Error, could not find description for #{klass.name}##{action_name}" if cmd.nil?
    desc usage_string, "#{description_prefix}#{cmd.description}"
  end

  desc_for "new APP_NAME", ::PraxisGen::App, :new
  def new(app_name)
    gen = ::PraxisGen::App.new([app_name])
    gen.destination_root = app_name
    gen.invoke_all
  end

  desc_for "example APP_NAME", ::PraxisGen::Example, :example
  def example(app_name)
    gen = ::PraxisGen::Example.new([app_name])
    gen.destination_root = app_name
    gen.invoke(:example)
  end  
end
    
PraxisGenerator.start(ARGV)