module StaticMatic
  # Directories generated for a new site setup
  BASE_DIRS = %w{
    site/
    site/stylesheets
    site/images
    site/javascripts
    src/
    src/pages/
    src/layouts
    src/stylesheets
    src/helpers
  }

  # Templates for setup and their location
  TEMPLATES = {
    'application.haml' => 'layouts',
    'application.sass' => 'stylesheets',
    'index.haml' => 'pages'
  }
  
  class Base
    
    include StaticMatic::RenderMixin
    include StaticMatic::BuildMixin
    include StaticMatic::SetupMixin
    include StaticMatic::HelpersMixin    
    include StaticMatic::ServerMixin    
    include StaticMatic::RescueMixin    
  
    attr_accessor :configuration
    attr_reader :current_page, :src_dir, :site_dir

    def current_file
      @current_file_stack[0] || ""
    end
    
    def initialize(base_dir, configuration = Configuration.new)
      @configuration = configuration
      @current_page = nil
      @current_file_stack = []
      @base_dir = File.expand_path(base_dir)
      @src_dir = "#{@base_dir}/src"
      @site_dir = "#{@base_dir}/site"
      @templates_dir = File.dirname(__FILE__) + '/templates/default/'
      
      @layout = "application"
      @scope = Object.new
      @scope.instance_variable_set("@staticmatic", self)
      
      load_helpers
    end
    
    def base_dir
      @base_dir
    end
  
    def run(command)
      if %w(build setup preview).include?(command)
        send(command)
      else
        puts "#{command} is not a valid StaticMatic command"
      end
    end
      
    # TODO: DRY this _exists? section up
    def template_exists?(name, dir = '')
      File.exists?(File.join(@src_dir, 'pages', dir, "#{name}.haml")) || File.exists?(File.join(@src_dir, 'stylesheets', "#{name}.sass"))
    end
    
    def layout_exists?(name)
      File.exists? full_layout_path(name)
    end
    
    def template_directory?(path)
      File.directory?(File.join(@src_dir, 'pages', path))
    end
    
    def full_layout_path(name)
      "#{@src_dir}/layouts/#{name}.haml"
    end
    
    class << self
      def base_dirs
        StaticMatic::BASE_DIRS
      end
    end
  end
end