require 'spec_helper'

describe Grape::Validations::PresenceValidator do

  module ValidationsSpec
    module PresenceValidatorSpec
      class API < Grape::API
        default_format :json

        resource :bacons do
          get do
            "All the bacon"
          end
        end

        params do
          requires :id, regexp: /^[0-9]+$/
        end
        post do
          { ret: params[:id] }
        end

        params do
          requires :name, :company
        end
        get do
          "Hello"
        end

        params do
          group :user do
            requires :first_name, :last_name
          end
        end
        get '/nested' do
          "Nested"
        end

        params do
          group :admin do
            requires :admin_name
            group :super do
              group :user do
                requires :first_name, :last_name
              end
            end
          end
        end
        get '/nested_triple' do
          "Nested triple"
        end
      end
    end
  end

  def app
    ValidationsSpec::PresenceValidatorSpec::API
  end

  it 'does not validate for any params' do
    get "/bacons"
    last_response.status.should == 200
    last_response.body.should == "All the bacon".to_json
  end

  it 'validates id' do
    post '/'
    last_response.status.should == 400
    last_response.body.should == '{"error":"id is missing"}'

    io = StringIO.new('{"id" : "a56b"}')
    post '/', {}, 'rack.input' => io, 'CONTENT_TYPE' => 'application/json', 'CONTENT_LENGTH' => io.length
    last_response.body.should == '{"error":"id is invalid"}'
    last_response.status.should == 400

    io = StringIO.new('{"id" : 56}')
    post '/', {}, 'rack.input' => io, 'CONTENT_TYPE' => 'application/json', 'CONTENT_LENGTH' => io.length
    last_response.body.should == '{"ret":56}'
    last_response.status.should == 201
  end

  it 'validates name, company' do
    get '/'
    last_response.status.should == 400
    last_response.body.should == '{"error":"name is missing"}'

    get '/', name: "Bob"
    last_response.status.should == 400
    last_response.body.should == '{"error":"company is missing"}'

    get '/', name: "Bob", company: "TestCorp"
    last_response.status.should == 200
    last_response.body.should == "Hello".to_json
  end

  it 'validates nested parameters' do
    get '/nested'
    last_response.status.should == 400
    last_response.body.should == '{"error":"user[first_name] is missing"}'

    get '/nested', user: { first_name: "Billy" }
    last_response.status.should == 400
    last_response.body.should == '{"error":"user[last_name] is missing"}'

    get '/nested', user: { first_name: "Billy", last_name: "Bob" }
    last_response.status.should == 200
    last_response.body.should == "Nested".to_json
  end

  it 'validates triple nested parameters' do
    get '/nested_triple'
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[admin_name] is missing, admin[super][user][first_name] is missing"}'

    get '/nested_triple', user: { first_name: "Billy" }
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[admin_name] is missing, admin[super][user][first_name] is missing"}'

    get '/nested_triple', admin: { super: { first_name: "Billy" } }
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[admin_name] is missing, admin[super][user][first_name] is missing"}'

    get '/nested_triple', super: { user: { first_name: "Billy", last_name: "Bob" } }
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[admin_name] is missing, admin[super][user][first_name] is missing"}'

    get '/nested_triple', admin: { super: { user: { first_name: "Billy" } } }
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[admin_name] is missing, admin[super][user][last_name] is missing"}'

    get '/nested_triple', admin: { admin_name: 'admin', super: { user: { first_name: "Billy" } } }
    last_response.status.should == 400
    last_response.body.should == '{"error":"admin[super][user][last_name] is missing"}'

    get '/nested_triple', admin: { admin_name: 'admin', super: { user: { first_name: "Billy", last_name: "Bob" } } }
    last_response.status.should == 200
    last_response.body.should == "Nested triple".to_json
  end

end