import unittest
from unittest.mock import MagicMock, patch
from pathlib import Path
import json
import tempfile
import os
from semantica.parse.structured_data_parser import StructuredDataParser
from semantica.parse.json_parser import JSONParser, JSONData

class TestParser(unittest.TestCase):

    def setUp(self):
        self.mock_logger = MagicMock()
        self.mock_tracker = MagicMock()
        
        self.logger_patcher = patch('semantica.parse.structured_data_parser.get_logger', return_value=self.mock_logger)
        self.tracker_patcher = patch('semantica.parse.structured_data_parser.get_progress_tracker', return_value=self.mock_tracker)
        self.logger_patcher_jp = patch('semantica.parse.json_parser.get_logger', return_value=self.mock_logger)
        self.tracker_patcher_jp = patch('semantica.parse.json_parser.get_progress_tracker', return_value=self.mock_tracker)
        
        self.logger_patcher.start()
        self.tracker_patcher.start()
        self.logger_patcher_jp.start()
        self.tracker_patcher_jp.start()
        
        # Also patch CSVParser and XMLParser imports in structured_data_parser if they cause issues, 
        # but they should be fine if files exist.
        # Assuming they are importable.

    def tearDown(self):
        self.logger_patcher.stop()
        self.tracker_patcher.stop()
        self.logger_patcher_jp.stop()
        self.tracker_patcher_jp.stop()

    def test_json_parser_string(self):
        parser = JSONParser()
        json_content = '{"key": "value"}'
        # If the parser supports string content (check logic in read file)
        # The code read previously showed checks for file existence.
        # If it's not a file, it might try to parse as string or fail if logic assumes path.
        # Let's check the code snippet again or try.
        # The snippet says: "if file_path_obj: ... else: ... (not shown fully)"
        # Let's assume it supports string or we can use a temp file.
        
        # Using temp file is safer
        with tempfile.NamedTemporaryFile(mode='w', delete=False, suffix='.json') as tmp:
            tmp.write(json_content)
            tmp_path = tmp.name
            
        try:
            result = parser.parse(tmp_path)
            self.assertIsInstance(result, JSONData)
            self.assertEqual(result.data['key'], 'value')
        finally:
            os.remove(tmp_path)

    def test_structured_data_parser_init(self):
        parser = StructuredDataParser()
        self.assertIsInstance(parser.json_parser, JSONParser)
        # Check other parsers exist
        self.assertTrue(hasattr(parser, 'csv_parser'))
        self.assertTrue(hasattr(parser, 'xml_parser'))

    @patch('semantica.parse.structured_data_parser.JSONParser')
    def test_structured_data_parser_delegation(self, mock_json_parser_cls):
        mock_instance = mock_json_parser_cls.return_value
        parser = StructuredDataParser()
        parser.progress_tracker = MagicMock() # Mock progress tracker manually if not set by init due to patch issues or if init needs it
        
        # Mock _detect_format or provide format
        # If we provide format='json', it should use json_parser
        parser.json_parser = mock_instance # replace with mock instance
        
        # We need to ensure Path is not mocked in a way that breaks isinstance check
        # Instead of patching Path globally, we can just rely on the fact that "test.json" string 
        # will trigger Path(data).exists() check.
        # We can mock Path inside the module but that breaks isinstance.
        # Better approach: Let it use real Path but mock exists on the path object if possible, 
        # OR just use a real file or a string that doesn't exist but bypass the check if possible?
        # The code checks: isinstance(data, Path) or (isinstance(data, str) and Path(data).exists())
        # If we pass a string "test.json" and it doesn't exist, file_path will be None.
        # But we want it to proceed. 
        # If file_path is None, it uses 'content' message but still calls _detect_format or uses provided format.
        
        # Let's just avoid patching Path globally to fix isinstance error.
        # We can patch os.path.exists or Path.exists if we want to simulate file existence
        # OR just pass a string and let it be treated as content if file missing.
        
        with patch.object(Path, 'exists', return_value=True):
             parser.parse_data("test.json", data_format="json")
             mock_instance.parse.assert_called()

if __name__ == '__main__':
    unittest.main()
