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spec_dir = File.expand_path(File.join(File.dirname(__FILE__)))
$LOAD_PATH.unshift(spec_dir)
$LOAD_PATH.uniq!

require 'fakefs/safe'
require 'googleauth'

describe Google::Auth::ClientId do
  shared_examples 'it has a valid config' do
    it 'should include a valid id' do
      expect(client_id.id).to eql 'abc@example.com'
    end

    it 'should include a valid secret' do
      expect(client_id.secret).to eql 'notasecret'
    end
  end

  shared_examples 'it can successfully load client_id' do
    context 'loaded from hash' do
      let(:client_id) { Google::Auth::ClientId.from_hash(config) }

      it_behaves_like 'it has a valid config'
    end

    context 'loaded from file' do
      file_path = '/client_secrets.json'

      let(:client_id) do
        FakeFS do
          content = MultiJson.dump(config)
          File.write(file_path, content)
          Google::Auth::ClientId.from_file(file_path)
        end
      end

      it_behaves_like 'it has a valid config'
    end
  end

  describe 'with web config' do
    let(:config) do
      {
        'web' => {
          'client_id' => 'abc@example.com',
          'client_secret' => 'notasecret'
        }
      }
    end
    it_behaves_like 'it can successfully load client_id'
  end

  describe 'with installed app config' do
    let(:config) do
      {
        'installed' => {
          'client_id' => 'abc@example.com',
          'client_secret' => 'notasecret'
        }
      }
    end
    it_behaves_like 'it can successfully load client_id'
  end

  context 'with missing top level property' do
    let(:config) do
      {
        'notvalid' => {
          'client_id' => 'abc@example.com',
          'client_secret' => 'notasecret'
        }
      }
    end

    it 'should raise error' do
      expect { Google::Auth::ClientId.from_hash(config) }.to raise_error(
        /Expected top level property/)
    end
  end

  context 'with missing client id' do
    let(:config) do
      {
        'web' => {
          'client_secret' => 'notasecret'
        }
      }
    end

    it 'should raise error' do
      expect { Google::Auth::ClientId.from_hash(config) }.to raise_error(
        /Client id can not be nil/)
    end
  end

  context 'with missing client secret' do
    let(:config) do
      {
        'web' => {
          'client_id' => 'abc@example.com'
        }
      }
    end

    it 'should raise error' do
      expect { Google::Auth::ClientId.from_hash(config) }.to raise_error(
        /Client secret can not be nil/)
    end
  end
end