#!/usr/bin/env python3
"""
#exonware/xwquery/src/exonware/xwquery/executors/graph/detach_delete_executor.py
DETACH_DELETE Operation Executor - Delete node with all edges
Company: eXonware.com
Author: eXonware Backend Team
Email: connect@exonware.com
Version: 0.0.1.8
Generation Date: 28-Oct-2025
"""

from typing import Any
from ..base import AUniversalOperationExecutor
from ....contracts import QueryAction, ExecutionContext, ExecutionResult


class DetachDeleteExecutor(AUniversalOperationExecutor):
    """
    DETACH_DELETE operation executor - Delete node with all connected edges.
    Cypher: MATCH (n:User {id: 1}) DETACH DELETE n
    Deletes the node AND all edges connected to it (both incoming and outgoing).
    Safer than regular DELETE as it prevents orphaned edges.
    Reuses xwnode graph modification.
    """
    OPERATION_NAME = "DETACH_DELETE"

    def _do_execute(self, action: QueryAction, context: ExecutionContext) -> ExecutionResult:
        """Execute DETACH_DELETE operation."""
        params = action.params
        node = context.node
        result_data = self._execute_detach_delete(node, params, context)
        return ExecutionResult(
            success=True,
            data=result_data,
            action_type=self.OPERATION_NAME,
            affected_count=result_data.get('deleted_nodes', 0) + result_data.get('deleted_edges', 0),
            metadata={'operation': self.OPERATION_NAME}
        )

    def _execute_detach_delete(self, node: Any, params: dict, context: ExecutionContext) -> dict:
        """
        Execute DETACH_DELETE - Delete node with all edges.
        FUTURE: Will use xwnode graph modification.
        """
        node_ids = params.get('node_ids', params.get('nodes', []))
        condition = params.get('condition', params.get('where'))
        deleted_nodes = 0
        deleted_edges = 0
        # FUTURE: Use xwnode's graph methods
        # for node_id in node_ids:
        #     # Delete all connected edges first
        #     deleted_edges += graph.remove_node_edges(node_id)
        #     # Then delete the node
        #     graph.remove_node(node_id)
        #     deleted_nodes += 1
        return {
            'deleted_nodes': deleted_nodes,
            'deleted_edges': deleted_edges,
            'node_ids': node_ids,
            'condition': condition,
            'status': 'basic_implementation',
            'note': 'Will use xwnode graph modification for production'
        }
__all__ = ['DetachDeleteExecutor']
