require './text_to_sql_query'

class SqlGeneratorTester
  describe 'Testing query generator' do
    it 'tests simple search term without column name and without quotes' do
      @query = TextToSqlQuery.new('-123', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['players.device_id ILIKE ?', '%-123%']
    end

    it 'tests simple search term with column name and without quotes' do
      @query = TextToSqlQuery.new('title:ab', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['players.title ILIKE ?', '%ab%']
    end

    it 'tests simple search term with unknown column name and without quotes' do
      @query = TextToSqlQuery.new('unknown:ab', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect { @query.where_clause }.to raise_error(RuntimeError, "Unknown field 'unknown'")
    end

    it 'tests simple search term without column name and with quotes' do
      @query = TextToSqlQuery.new('ab', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['players.device_id ILIKE ?', '%ab%']
    end

    it 'tests simple search term with column name and with quotes' do
      @query = TextToSqlQuery.new('tag:"ab"', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['players.tag ILIKE ?', '%ab%']
    end

    it 'tests search without operators' do
      @query = TextToSqlQuery.new('123 456', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.device_id ILIKE ? OR players.device_id ILIKE ?)', '%123%', '%456%']
    end

    it 'tests search with OR operator' do
      @query = TextToSqlQuery.new('123 or 456', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.device_id ILIKE ? OR players.device_id ILIKE ?)', '%123%', '%456%']
    end

    it 'tests search with AND operator' do
      @query = TextToSqlQuery.new('123 and 456', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.device_id ILIKE ? AND players.device_id ILIKE ?)', '%123%', '%456%']
    end

    it 'tests search with NOT operator on default column' do
      @query = TextToSqlQuery.new('not 23', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['NOT players.device_id ILIKE ?', '%23%']
    end

    it 'tests search with NOT operator on non-default column' do
      @query = TextToSqlQuery.new('not tag:23', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['NOT players.tag ILIKE ?', '%23%']
    end

    it 'tests search with mixed logical operators' do
      @query = TextToSqlQuery.new('title:ab and not tag:hf-1', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.title ILIKE ? AND NOT players.tag ILIKE ?)', '%ab%', '%hf-1%']
    end

    it 'tests search with mixed logical operators without NOT' do
      @query = TextToSqlQuery.new('title:a and title:b or title:c', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['((players.title ILIKE ? AND players.title ILIKE ?) OR players.title ILIKE ?)', '%a%', '%b%', '%c%']
    end

    it 'tests search with brackets in expression' do
      @query = TextToSqlQuery.new('title:a and (title:b or title:c)', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.title ILIKE ? AND (players.title ILIKE ? OR players.title ILIKE ?))', '%a%', '%b%', '%c%']
    end

    it 'tests search with brackets in expression and with NOT operator' do
      @query = TextToSqlQuery.new('title:a and not (title:b or title:c)', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['(players.title ILIKE ? AND NOT (players.title ILIKE ? OR players.title ILIKE ?))', '%a%', '%b%', '%c%']
    end

    it 'tests search with special characters in search term' do
      @query = TextToSqlQuery.new('title:"%a_\"', [:'players.title', :'players.tag', :'players.device_id'], :'players.device_id')

      expect(@query.where_clause).to eq ['players.title ILIKE ?', '%\%a\_\\%']
    end

    it 'tests search with field mappings' do
      @query = TextToSqlQuery.new('tags:h1-r', [:'players.title', :'players.name', :'players.device_id'], :'players.device_id', { tags: "tags.name" })

      expect(@query.where_clause).to eq ['tags.name ILIKE ?', '%h1-r%']
    end

    it 'tests search with field mappings when fields array has same mapping' do
      @query = TextToSqlQuery.new('tags:hs1-r', [:'players.title', :'players.tags', :'players.device_id'], :'players.device_id', { tags: "tags.name" })

      expect(@query.where_clause).to eq ['tags.name ILIKE ?', '%hs1-r%']
    end

    it 'tests complex query' do
      text = '(device_id:"with space" tags:mta no-quotes-id-123)'\
      'or "id with quotes-5"  and   ( ("id with q 10" or "id with q 20")'\
      'and ("id with Q 30" "id with Q 40") and not id-without-Q-50)'

      fields = [:'players.title', :'players.name', :'players.device_id']
      default_field = :'players.device_id'
      fields_mappings = { tags: 'tags.name' }

      @query = TextToSqlQuery.new(text, fields, default_field, fields_mappings)

      result_expression = '((players.device_id ILIKE ? OR (tags.name ILIKE ? OR players.device_id ILIKE ?)) OR (players.device_id ILIKE ? AND (((players.device_id ILIKE ? OR players.device_id ILIKE ?) AND (players.device_id ILIKE ? OR players.device_id ILIKE ?)) AND NOT players.device_id ILIKE ?)))'
      result_params = ['%with space%',
                       '%mta%',
                       '%no-quotes-id-123%',
                       '%id with quotes-5%',
                       '%id with q 10%',
                       '%id with q 20%',
                       '%id with Q 30%',
                       '%id with Q 40%',
                       '%id-without-Q-50%']

      expect(@query.where_clause).to eq [result_expression, result_params].flatten
    end
  end
end