"""
NoSQL Query Languages Paradigm - MongoDB, Cypher, etc.
"""

import time
from typing import Dict, Any, List, Optional

from ..base import BaseQueryParadigm, QueryResult


class NoSQLQueryParadigm(BaseQueryParadigm):
    """NoSQL query paradigm for document and graph databases."""

    @property
    def name(self) -> str:
        return "NoSQL Queries"

    @property
    def description(self) -> str:
        return "MongoDB-style queries, Cypher for graph traversal, and other NoSQL query languages"

    @property
    def category(self) -> str:
        return "structural"

    @property
    def complexity(self) -> str:
        return "advanced"

    def execute(self, query: str, config: Dict[str, Any] = None) -> QueryResult:
        """Execute NoSQL query (not yet implemented)."""
        start_time = time.time()
        execution_time = (time.time() - start_time) * 1000

        return QueryResult(
            paradigm=self.name,
            query=query,
            execution_time_ms=execution_time,
            result_count=0,
            results=[],
            metadata={
                "status": "not_implemented",
                "implementation_issue": "TBD - to be created",
                "description": "NoSQL queries enable document and graph-based data access patterns"
            },
            success=False,
            error_message="NoSQL Query paradigm not yet implemented."
        )

    def get_examples(self) -> List[Dict[str, str]]:
        """Get example NoSQL queries."""
        return [
            {
                "name": "MongoDB-style find",
                "description": "Find documents with specific criteria",
                "query": "db.files.find({author: 'Alice', tags: {$in: ['tutorial']}})"
            },
            {
                "name": "Cypher graph traversal",
                "description": "Find related files through tags",
                "query": "MATCH (f:File)-[:HAS_TAG]->(t:Tag)<-[:HAS_TAG]-(related:File) WHERE f.author = 'Alice' RETURN related"
            },
            {
                "name": "Aggregation pipeline",
                "description": "MongoDB aggregation for statistics",
                "query": "db.files.aggregate([{$group: {_id: '$author', count: {$sum: 1}}}, {$sort: {count: -1}}])"
            }
        ]

    def validate_query(self, query: str) -> tuple[bool, Optional[str]]:
        """Validate NoSQL query syntax."""
        if not query.strip():
            return False, "NoSQL query cannot be empty"
        return True, None

    def get_syntax_help(self) -> str:
        """Get syntax help for NoSQL queries."""
        return """NoSQL Query Syntax:

MongoDB-style:
db.collection.find({field: value})
db.collection.aggregate([{$match: {field: value}}])

Cypher (Neo4j):
MATCH (n:Label) WHERE n.property = 'value' RETURN n

Supported operations will include find, aggregate, graph traversal, and document manipulation.
"""