require 'spec_helper'
require_relative '../../config/initializers/6_validations.rb'

describe '6_validations' do
  before :all do
    FileUtils.mkdir_p('tmp/tests/paths/a/b/c/d')
    FileUtils.mkdir_p('tmp/tests/paths/a/b/c2')
    FileUtils.mkdir_p('tmp/tests/paths/a/b/d')
  end

  after :all do
    FileUtils.rm_rf('tmp/tests/paths')
  end

  describe 'validate_storages_config' do
    context 'with correct settings' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c'), 'bar' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/d'))
      end

      it 'passes through' do
        expect { validate_storages_config }.not_to raise_error
      end
    end

    context 'when one of the settings is incorrect' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c', 'failure_count_threshold' => 'not a number'))
      end

      it 'throws an error' do
        expect { validate_storages_config }.to raise_error(/failure_count_threshold/)
      end
    end

    context 'with invalid storage names' do
      before do
        mock_storages('name with spaces' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c'))
      end

      it 'throws an error' do
        expect { validate_storages_config }.to raise_error('"name with spaces" is not a valid storage name. Please fix this in your gitlab.yml before starting GitLab.')
      end
    end

    context 'with incomplete settings' do
      before do
        mock_storages('foo' => {})
      end

      it 'throws an error suggesting the user to update its settings' do
        expect { validate_storages_config }.to raise_error('foo is not a valid storage, because it has no `path` key. Refer to gitlab.yml.example for an updated example. Please fix this in your gitlab.yml before starting GitLab.')
      end
    end

    context 'with deprecated settings structure' do
      before do
        mock_storages('foo' => 'tmp/tests/paths/a/b/c')
      end

      it 'throws an error suggesting the user to update its settings' do
        expect { validate_storages_config }.to raise_error("foo is not a valid storage, because it has no `path` key. It may be configured as:\n\nfoo:\n  path: tmp/tests/paths/a/b/c\n\nFor source installations, update your config/gitlab.yml Refer to gitlab.yml.example for an updated example.\n\nIf you're using the Gitlab Development Kit, you can update your configuration running `gdk reconfigure`.\n")
      end
    end
  end

  describe 'validate_storages_paths' do
    context 'with correct settings' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c'), 'bar' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/d'))
      end

      it 'passes through' do
        expect { validate_storages_paths }.not_to raise_error
      end
    end

    context 'with nested storage paths' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c'), 'bar' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c/d'))
      end

      it 'throws an error' do
        expect { validate_storages_paths }.to raise_error('bar is a nested path of foo. Nested paths are not supported for repository storages. Please fix this in your gitlab.yml before starting GitLab.')
      end
    end

    context 'with similar but un-nested storage paths' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c'), 'bar' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/paths/a/b/c2'))
      end

      it 'passes through' do
        expect { validate_storages_paths }.not_to raise_error
      end
    end

    describe 'inaccessible storage' do
      before do
        mock_storages('foo' => Gitlab::GitalyClient::StorageSettings.new('path' => 'tmp/tests/a/path/that/does/not/exist'))
      end

      it 'passes through with a warning' do
        expect(Rails.logger).to receive(:error)
        expect { validate_storages_paths }.not_to raise_error
      end
    end
  end

  def mock_storages(storages)
    allow(Gitlab.config.repositories).to receive(:storages).and_return(storages)
  end
end
