controllers.rb

require './models'
module Controllers
  class NotFoundException < Exception; end

  class Controller
    
    attr_accessor :request

    def initialize(request)
      @request = request
    end

    def route
      collection_pattern = /\/#{resource_name}$/
      member_pattern     = /\/#{resource_name}\/([a-z0-9\-]+)/


      #collection actions
      if request.path =~ collection_pattern
        if request.get?
          return index
        elsif request.post?
          return create
        else
          return [405, ""]
        end
      end
      
      #member actions
      if request.path =~ member_pattern
        request.params["id"] = request.path.match(member_pattern)[1]
        if request.get?
          # show <=> read
          return show
        elsif request.put?
          return update
        elsif request.delete?
          return destroy
        else
          return [405, ""]
        end
      end

      #a not implemented path was requested
      return [501, ""]
    end


    def dispatch
      begin
        route 
      rescue NotFoundException
        [404, ""]
      rescue 
        [500, ""]
      end
    end
  end


  class QuotesController < Controller
    include Models

    def resource_name
      "quotes"
    end

    def index
      [200, Quote.all.map(&:as_text).join("\n")]
    end

    def show
      quote = Quote.find(request.params["id"])
      if quote
        [200, quote.as_text]
      else
        raise NotFoundException
      end
    end

    def create
      quote = Quote.create(
        content: request.params["content"],
        author:  request.params["author"]
      )

      [201, quote.as_text]
    end
  end
end