require 'ritm'
require 'json'
require 'cert'

module Doraemon

  class ProxyServer

    def initialize(port=8000, root)
      @port = port
      @root = root
    end

    def start(api_list)
      
      Cert.generate_cert

      session = Ritm::Session.new

      port = @port
      
      session.configure do
        ssl_reverse_proxy.ca[:pem] = Cert.cert_path
        ssl_reverse_proxy.ca[:key] = Cert.key_path
        proxy[:bind_address] = '0.0.0.0'
        proxy[:bind_port] = port
      end
      
      session.on_response do |_req, _resp|

        if api_list.include?(_req.path)

          _params = nil
          begin
            _params = JSON.parse(_req.body)
          rescue
            _params = _req.body
          end

          _result = JSON.parse(_resp.body)

          begin
            _result = eval(File.read(File.join(@root, api_list[_req.path])))
          rescue
            _result = {
              "code": -1,
              "msg": "#{_req.path} 处理错误"
            }
          end
          
          _resp.status = 200
          _resp.body = _result.to_json
          _resp.header['content-length'] = _resp.body.bytesize
          _resp.header['content-type'] = 'application/json;charset=UTF-8'
          
          puts "- - - > #{_req.path}"
          puts "#{JSON.pretty_generate(_result)}\n\n"
        end
        
      end
      
      session.start
      
      # trap 'INT' do
      #   session.shutdown
      #   return
      # end
      # loop { gets }

    end

  end

end