require 'spec_helper'

require 'rom/lint/spec'

describe 'YAML adapter' do
  let(:configuration) do
    ROM::Configuration.new( :yaml, path )
  end

  let(:root) { Pathname(__FILE__).dirname.join('..') }



  let(:path) { "#{root}/fixtures/test_db.yml" }
  let(:container) { ROM.container(configuration) }

  subject(:rom) { container }

  let(:configuration) do
    ROM::Configuration.new( :yaml, path )
  end

  let(:root) { Pathname(__FILE__).dirname.join('..') }
  let(:container) { ROM.container(configuration) }
  let(:rom) { container }

  describe "single file configuration" do
    let(:path) { "#{root}/fixtures/test_db.yml" }

    let(:users_relation) do
      Class.new(ROM::YAML::Relation) do
        dataset :users

        def by_name(name)
          restrict(name: name)
        end
      end
    end

    let(:user_mapper) do
      Class.new(ROM::Mapper) do
        relation :users
        register_as :entity

        model name: 'User'

        attribute :name
        attribute :email

        embedded :roles, type: :array do
          attribute :name, from: 'role_name'
        end
      end
    end

    before do
      configuration.register_relation(users_relation)
      configuration.register_mapper(user_mapper)
    end

    describe 'env#relation' do
      it 'returns mapped object' do
        jane = rom.relation(:users).as(:entity).by_name('Jane').first

        expect(jane.name).to eql('Jane')
        expect(jane.email).to eql('jane@doe.org')
        expect(jane.roles.length).to eql(2)
        expect(jane.roles).to eql([
          { name: 'Member' }, { name: 'Admin' }
        ])
      end
    end
  end

  describe 'multi-file setup' do
    let(:path) { "#{root}/fixtures/db" }

    let(:users_relation) do
      Class.new(ROM::YAML::Relation) do
        dataset :users
      end
    end

    let(:tasks_relation) do
      Class.new(ROM::YAML::Relation) do
        dataset :tasks
      end
    end

    before do
      configuration.register_relation(users_relation)
      configuration.register_relation(tasks_relation)
    end

    it 'uses one-file-per-relation' do
      expect(rom.relation(:users)).to match_array([
        { name: 'Jane', email: 'jane@doe.org' }
      ])

      expect(rom.relation(:tasks)).to match_array([
        { title: 'Task One' },
        { title: 'Task Two' },
        { title: 'Task Three' }
      ])
    end
  end
end