# -*- coding: utf-8 -*-
import pytest
import os
from iterable.datatypes import RDFXMLIterable


class TestRDFXML:
    def test_id(self):
        datatype_id = RDFXMLIterable.id()
        assert datatype_id == 'rdfxml'

    def test_flatonly(self):
        flag = RDFXMLIterable.is_flatonly()
        assert flag == False

    def test_openclose(self):
        """Test basic open/close"""
        test_file = 'testdata/test_rdfxml.rdf'
        os.makedirs('testdata', exist_ok=True)
        with open(test_file, 'w') as f:
            f.write('<?xml version="1.0"?>\n')
            f.write('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n')
            f.write('  <rdf:Description rdf:about="http://example.com/subject">\n')
            f.write('    <rdf:type rdf:resource="http://example.com/Type"/>\n')
            f.write('  </rdf:Description>\n')
            f.write('</rdf:RDF>\n')
        
        iterable = RDFXMLIterable(test_file)
        iterable.close()
        
        if os.path.exists(test_file):
            os.unlink(test_file)

    def test_read_one(self):
        """Test reading single RDF/XML record"""
        test_file = 'testdata/test_rdfxml_read.rdf'
        os.makedirs('testdata', exist_ok=True)
        with open(test_file, 'w') as f:
            f.write('<?xml version="1.0"?>\n')
            f.write('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n')
            f.write('  <rdf:Description rdf:about="http://example.com/subject">\n')
            f.write('    <rdf:type rdf:resource="http://example.com/Type"/>\n')
            f.write('  </rdf:Description>\n')
            f.write('</rdf:RDF>\n')
        
        iterable = RDFXMLIterable(test_file)
        record = iterable.read()
        assert isinstance(record, dict)
        assert 'subject' in record or 'predicate' in record
        iterable.close()
        
        if os.path.exists(test_file):
            os.unlink(test_file)

    def test_read_bulk(self):
        """Test reading bulk RDF/XML records"""
        test_file = 'testdata/test_rdfxml_bulk.rdf'
        os.makedirs('testdata', exist_ok=True)
        with open(test_file, 'w') as f:
            f.write('<?xml version="1.0"?>\n')
            f.write('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n')
            f.write('  <rdf:Description rdf:about="http://example.com/subject1">\n')
            f.write('    <rdf:type rdf:resource="http://example.com/Type"/>\n')
            f.write('  </rdf:Description>\n')
            f.write('  <rdf:Description rdf:about="http://example.com/subject2">\n')
            f.write('    <rdf:type rdf:resource="http://example.com/Type"/>\n')
            f.write('  </rdf:Description>\n')
            f.write('</rdf:RDF>\n')
        
        iterable = RDFXMLIterable(test_file)
        chunk = iterable.read_bulk(2)
        assert isinstance(chunk, list)
        assert len(chunk) > 0
        iterable.close()
        
        if os.path.exists(test_file):
            os.unlink(test_file)

    def test_reset(self):
        """Test reset functionality"""
        test_file = 'testdata/test_rdfxml_reset.rdf'
        os.makedirs('testdata', exist_ok=True)
        with open(test_file, 'w') as f:
            f.write('<?xml version="1.0"?>\n')
            f.write('<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#">\n')
            f.write('  <rdf:Description rdf:about="http://example.com/subject">\n')
            f.write('    <rdf:type rdf:resource="http://example.com/Type"/>\n')
            f.write('  </rdf:Description>\n')
            f.write('</rdf:RDF>\n')
        
        iterable = RDFXMLIterable(test_file)
        record1 = iterable.read()
        iterable.reset()
        record2 = iterable.read()
        assert record1 == record2
        iterable.close()
        
        if os.path.exists(test_file):
            os.unlink(test_file)

