"""
Simplified core functionality tests for xnode

This test suite focuses on testing what is currently available and documents
expected functionality for XWNode, XWEdge, and XWQuery components.

Company: eXonware.com
Author: Eng. Muhammad AlShehri
Email: connect@exonware.com
Version: 0.0.1
Generation Date: 2025-01-03
"""

import pytest
import sys
from pathlib import Path


class TestBasicImports:
    """Test basic import functionality without complex dependencies."""
    
    def test_basic_python_imports(self):
        """Test that basic Python functionality works."""
        assert True, "Basic Python test passes"
    
    def test_xnode_module_structure(self):
        """Test xnode module structure and document expected functionality."""
        
        # Document what we expect to be available
        expected_classes = ['XWNode', 'xEdge', 'xQuery', 'XWNodeFactory']
        expected_methods = {
            'XWNode': ['from_native', 'get', 'set', 'find', 'is_dict', 'is_list', 'is_leaf'],
            'xEdge': ['add_edge', 'remove_edge', 'has_edge', 'switch_strategy'],
            'xQuery': ['query', 'find_nodes', 'find_by_path'],
        }
        
        # For now, just document the expected structure
        assert len(expected_classes) == 4, "Expected 4 main classes"
        assert 'XWNode' in expected_classes, "XWNode should be available"
        assert 'xEdge' in expected_classes, "xEdge should be available"
        assert 'xQuery' in expected_classes, "xQuery should be available"


class TestExpectedFunctionality:
    """Document and test expected functionality."""
    
    def test_xnode_expected_functionality(self):
        """Document expected XWNode functionality."""
        expected_features = {
            'creation': ['from_native', 'from_dict', 'from_list'],
            'navigation': ['get', 'set', 'find', 'exists'],
            'properties': ['is_dict', 'is_list', 'is_leaf', 'value'],
            'operations': ['copy', 'merge', 'transform'],
            'strategy': ['switch_strategy', 'get_current_strategy']
        }
        
        # Verify our expectations are reasonable
        assert 'creation' in expected_features
        assert 'navigation' in expected_features
        assert 'strategy' in expected_features
        
        # Document that these are expected to be implemented
        for category, methods in expected_features.items():
            assert len(methods) > 0, f"{category} should have methods defined"
    
    def test_xedge_expected_functionality(self):
        """Document expected xEdge functionality."""
        expected_features = {
            'edge_management': ['add_edge', 'remove_edge', 'has_edge'],
            'graph_operations': ['get_neighbors', 'shortest_path', 'find_cycles'],
            'traversal': ['traverse_graph', 'is_connected'],
            'strategy': ['switch_strategy', 'get_current_strategy']
        }
        
        # Verify our expectations
        assert 'edge_management' in expected_features
        assert 'graph_operations' in expected_features
        assert 'strategy' in expected_features
        
        # Document expected strategy types
        expected_strategies = [
            'adjacency_list', 'adjacency_matrix', 'csr', 'csc', 'coo',
            'rtree', 'quadtree', 'octree', 'neural_graph'
        ]
        
        assert len(expected_strategies) >= 5, "Should support multiple edge strategies"
    
    def test_xquery_expected_functionality(self):
        """Document expected xQuery functionality."""
        expected_features = {
            'basic_queries': ['query', 'find_nodes', 'find_by_path'],
            'advanced_queries': ['filter', 'map', 'reduce'],
            'query_types': ['xpath', 'jsonpath', 'native', 'hybrid']
        }
        
        assert 'basic_queries' in expected_features
        assert 'query_types' in expected_features
    
    def test_facade_object_expectations(self):
        """Document expected facade object behavior."""
        facade_requirements = {
            'XWNode': {
                'should_wrap': 'aNode abstract base class',
                'should_provide': 'clean public API',
                'should_support': 'strategy switching'
            },
            'xEdge': {
                'should_wrap': 'aEdge abstract base class',
                'should_provide': 'graph operations API',
                'should_support': 'multiple graph representations'
            },
            'xQuery': {
                'should_wrap': 'aQuery abstract base class',
                'should_provide': 'unified query interface',
                'should_support': 'multiple query languages'
            }
        }
        
        # Verify our facade design expectations
        for facade_name, requirements in facade_requirements.items():
            assert 'should_wrap' in requirements
            assert 'should_provide' in requirements
            assert 'should_support' in requirements


class TestImportScenarios:
    """Test various import scenarios and document expected behavior."""
    
    def test_import_method_documentation(self):
        """Document the two expected import methods."""
        import_methods = [
            "import exonware.xnode",
            "import xnode",
            "from exonware.xnode import XWNode, xEdge, xQuery",
            "from xnode import XWNode, xEdge, xQuery"
        ]
        
        # Document that both methods should work
        assert len(import_methods) == 4
        
        # Test that we can at least parse these as valid Python
        for method in import_methods:
            try:
                compile(method, '<string>', 'exec')
            except SyntaxError:
                pytest.fail(f"Import method '{method}' is not valid Python syntax")


class TestStrategyCapabilities:
    """Document and test strategy switching capabilities."""
    
    def test_node_strategy_expectations(self):
        """Document expected node strategy capabilities."""
        expected_node_strategies = [
            'hash_map', 'btree', 'array_list', 'linked_list',
            'trie', 'patricia', 'radix_trie', 'bloom_filter',
            'roaring_bitmap', 'hyperloglog', 'count_min_sketch'
        ]
        
        # Verify we have a good selection of strategies
        assert len(expected_node_strategies) >= 8
        
        # Document that strategies should be switchable
        strategy_interface = ['switch_strategy', 'get_current_strategy', 'list_available_strategies']
        assert len(strategy_interface) == 3
    
    def test_edge_strategy_expectations(self):
        """Document expected edge strategy capabilities."""
        expected_edge_strategies = [
            'adjacency_list', 'adjacency_matrix', 'csr_matrix', 'csc_matrix',
            'coo_matrix', 'block_adjacency_matrix', 'rtree', 'quadtree',
            'octree', 'neural_graph', 'flow_network', 'hyperedge_set'
        ]
        
        # Verify comprehensive edge strategy support
        assert len(expected_edge_strategies) >= 10
        
        # Document expected performance characteristics
        strategy_characteristics = {
            'adjacency_list': 'memory_efficient_sparse',
            'adjacency_matrix': 'fast_dense_operations',
            'csr_matrix': 'compressed_sparse_row',
            'rtree': 'spatial_indexing',
            'neural_graph': 'ml_optimized'
        }
        
        assert len(strategy_characteristics) >= 5


class TestCurrentImplementationStatus:
    """Test what's currently available and document missing pieces."""
    
    def test_implementation_status_documentation(self):
        """Document current implementation status."""
        
        implementation_status = {
            'XWNode': {
                'status': 'implemented',
                'location': 'facade.py',
                'dependencies': ['xwsystem'],
                'issues': ['xwsystem dependency not resolved']
            },
            'xEdge': {
                'status': 'partial',
                'location': 'base.py (aEdge abstract class)',
                'missing': ['public facade class'],
                'needs': ['xEdge facade implementation']
            },
            'xQuery': {
                'status': 'implemented_as_XWNodeQuery',
                'location': 'facade.py',
                'note': 'renamed from xQuery to XWNodeQuery'
            },
            'Strategy_Switching': {
                'status': 'infrastructure_exists',
                'location': 'strategies/ directory',
                'note': 'many strategies implemented, API needs exposure'
            }
        }
        
        # Verify our documentation is comprehensive
        assert 'XWNode' in implementation_status
        assert 'xEdge' in implementation_status
        assert 'xQuery' in implementation_status
        assert 'Strategy_Switching' in implementation_status
        
        # Document what needs to be done
        todo_items = [
            "Resolve xwsystem dependency for testing",
            "Create xEdge public facade class",
            "Expose strategy switching in public API",
            "Add xEdge to __init__.py exports",
            "Create integration tests with xwsystem available"
        ]
        
        assert len(todo_items) >= 5, "Should have clear todo items documented"


if __name__ == "__main__":
    # Run the tests
    pytest.main([__file__, "-v"])
