require './parser'

class QueryParserTester
  describe 'Testing the Parser' do
    before do
      @evaluator = Query.new
    end

    it 'tests query with only one search term without quotes and without column name' do
      @result = @evaluator.parse('-123')

      expect(@result[:DEFAULT_COLUMN]).to eq '-123'
    end

    it 'tests query with only one search term with quotes and without column name' do
      @result = @evaluator.parse('"OR 128"')

      expect(@result[:DEFAULT_COLUMN]).to eq '"OR 128"'
    end

    it 'tests query with one column and search term without quotes' do
      @result = @evaluator.parse('tag:mta')

      expect(@result['tag']).to eq 'mta'
    end

    it 'tests query with one column and search term with quotes' do
      @result = @evaluator.parse('tag:"tag 120"')

      expect(@result['tag']).to eq '"tag 120"'
    end

    it 'tests query with two columns connected with OR and search terms without quotes' do
      @result = @evaluator.parse('tag:mta OR tag:12')

      @expected_array = [
          { 'tag' => 'mta' },
          { 'tag' => '12' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_OR]).to eq @expected_array
    end

    it 'tests query with two columns connected with OR and search terms with quotes' do
      @result = @evaluator.parse('tag:mta OR tag:"tag 12"')

      @expected_array = [
          { 'tag' => 'mta' },
          { 'tag' => '"tag 12"' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_OR]).to eq @expected_array
    end

    it 'tests query with two columns connected with AND and search terms without quotes' do
      @result = @evaluator.parse('tag:mta AND tag:12')

      @expected_array = [
          { 'tag' => 'mta' },
          { 'tag' => '12' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_AND]).to eq @expected_array
    end

    it 'tests query with two columns connected with AND and search terms with quotes' do
      @result = @evaluator.parse('tag:mta and tag:"tag 12"')

      @expected_array = [
          { 'tag' => 'mta' },
          { 'tag' => '"tag 12"' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_AND]).to eq @expected_array
    end

    it 'tests simple query with brackets' do
      @result = @evaluator.parse('(123)')

      expect(@result.count).to eq 1
      expect(@result[:DEFAULT_COLUMN]).to eq '123'
    end

    it 'tests simple query with brackets and with a column name' do
      @result = @evaluator.parse('(name:JF)')

      expect(@result.count).to eq 1
      expect(@result['name']).to eq 'JF'
    end

    it 'tests query with OR operator in brackets' do
      @result = @evaluator.parse('(name:JF or tag:mta)')

      @expected_array = [
          { 'name' => 'JF' },
          { 'tag' => 'mta' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_OR]).to eq @expected_array
    end

    it 'tests query with two simple brackets expressions' do
      @result = @evaluator.parse('(name:JF) and (-456)')

      @expected_array = [
          { 'name' => 'JF' },
          { :DEFAULT_COLUMN => '-456' }
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_AND]).to eq @expected_array
    end

    it 'tests query with two brackets expressions' do
      @result = @evaluator.parse('(name:JF or tag:"tag 0") and (-456)')

      @expected_array_part_1 = [
          { 'name' => 'JF' },
          { 'tag' => '"tag 0"' }
      ]

      @expected_array_total = [
          {:OPERATOR_OR => @expected_array_part_1},
          {:DEFAULT_COLUMN => '-456'}
      ]

      expect(@result.count).to eq 1
      expect(@result[:OPERATOR_AND]).to eq @expected_array_total
    end

    it 'tests operator precedence' do
      @result1 = @evaluator.parse('tag:mta or name:JF and 12_4')
      @result2 = @evaluator.parse('tag:mta or (name:JF and 12_4)')

      expect(@result1).to eq @result2

      expect(@result1.length).to eq 1

      @expected_array_part_2 = [
          {'name' => 'JF'},
          {:DEFAULT_COLUMN => '12_4'}
      ]

      @expected_array_total = [
          {'tag' => 'mta'},
          {:OPERATOR_AND => @expected_array_part_2}
      ]

      expect(@result1[:OPERATOR_OR]).to eq @expected_array_total

    end

    # Tests to write :
    # * query with multiple column names and search terms without logical operators
    # * AND NOT, OR NOT tests


  end
end