"""
Data Transformation Paradigm - JSON/YAML/XML serialization.
"""

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

from ..base import BaseQueryParadigm, QueryResult


class DataTransformationParadigm(BaseQueryParadigm):
    """Data transformation paradigm for format conversion and serialization."""

    @property
    def name(self) -> str:
        return "Data Transformation"

    @property
    def description(self) -> str:
        return "Serialize and transform data between JSON, YAML, XML, and other formats for application use"

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

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

    def execute(self, query: str, config: Dict[str, Any] = None) -> QueryResult:
        """Execute transformation (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": "Data transformation enables format conversion and serialization"
            },
            success=False,
            error_message="Data Transformation paradigm not yet implemented."
        )

    def get_examples(self) -> List[Dict[str, str]]:
        """Get example transformations."""
        return [
            {
                "name": "Export to JSON",
                "description": "Transform file metadata to JSON",
                "query": "transform --input=files --output=json --format=compact"
            },
            {
                "name": "Convert to YAML",
                "description": "Export configuration as YAML",
                "query": "transform --input=config --output=yaml --pretty"
            },
            {
                "name": "Generate XML",
                "description": "Create XML from file structure",
                "query": "transform --input=files --output=xml --schema=file-manifest"
            },
            {
                "name": "Custom template",
                "description": "Apply custom transformation template",
                "query": "transform --template=custom.jinja2 --input=files --output=html"
            }
        ]

    def validate_query(self, query: str) -> tuple[bool, Optional[str]]:
        """Validate transformation command."""
        if not query.strip():
            return False, "Transformation command cannot be empty"

        if not query.startswith('transform'):
            return False, "Command must start with 'transform'"

        return True, None

    def get_syntax_help(self) -> str:
        """Get syntax help for transformations."""
        return """Data Transformation Syntax:

Basic Format:
transform --input=<source> --output=<format> [options]

Input Sources:
--input=files - File metadata
--input=tags - Tag information
--input=config - Configuration data
--input=stats - Statistics data

Output Formats:
--output=json - JSON format
--output=yaml - YAML format
--output=xml - XML format
--output=csv - CSV format
--output=html - HTML format

Options:
--pretty - Pretty-print output
--compact - Compact output
--template=<file> - Custom template
--schema=<name> - Use predefined schema
--filter=<expression> - Filter data

Examples:
transform --input=files --output=json --pretty
transform --input=tags --output=yaml --filter="count > 5"
transform --template=report.html --input=stats --output=html
"""