"""
Batch Manipulation Paradigm - Export/Edit/Import workflows.
"""

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

from ..base import BaseQueryParadigm, QueryResult


class BatchManipulationParadigm(BaseQueryParadigm):
    """Batch manipulation paradigm for export/edit/import workflows."""

    @property
    def name(self) -> str:
        return "Batch Manipulation"

    @property
    def description(self) -> str:
        return "Export data to external formats (CSV/Excel), edit outside MarkiTect, then re-import with validation"

    @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 batch operation (not yet implemented)."""
        start_time = time.time()

        # This is a documentation paradigm - not yet implemented
        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": "Batch manipulation enables export to CSV/Excel, external editing, and validated re-import"
            },
            success=False,
            error_message="Batch Manipulation paradigm not yet implemented. This paradigm will enable export/edit/import workflows."
        )

    def get_examples(self) -> List[Dict[str, str]]:
        """Get example batch operations."""
        return [
            {
                "name": "Export to CSV",
                "description": "Export query results to CSV for external editing",
                "query": "export --format=csv --query='SELECT * FROM files WHERE type=\"markdown\"' --output=files.csv"
            },
            {
                "name": "Export to Excel",
                "description": "Export with multiple sheets for complex data",
                "query": "export --format=xlsx --sheets='files,tags,authors' --output=markitect_data.xlsx"
            },
            {
                "name": "Import from CSV",
                "description": "Import edited data with validation",
                "query": "import --format=csv --file=edited_files.csv --validate --dry-run"
            },
            {
                "name": "Batch tag update",
                "description": "Export tags, edit in Excel, re-import",
                "query": "export --format=xlsx --table=file_tags --output=tags.xlsx; import --file=tags_edited.xlsx --table=file_tags"
            }
        ]

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

        valid_commands = ['export', 'import', 'validate', 'transform']
        command = query.strip().split()[0]

        if command not in valid_commands:
            return False, f"Command must be one of: {', '.join(valid_commands)}"

        return True, None

    def get_syntax_help(self) -> str:
        """Get syntax help for batch operations."""
        return """Batch Manipulation Syntax:

Export Operations:
export --format=<csv|xlsx|json> --query="<SQL>" --output=<filename>
export --format=<csv|xlsx|json> --table=<table_name> --output=<filename>

Import Operations:
import --format=<csv|xlsx|json> --file=<filename> [--table=<table>] [--validate] [--dry-run]

Transform Operations:
transform --file=<input> --script=<transformation> --output=<output>

Export Options:
--format: Output format (csv, xlsx, json)
--query: SQL query to define export data
--table: Specific table to export
--output: Output filename

Import Options:
--format: Input format (csv, xlsx, json)
--file: Input filename
--table: Target table (auto-detected if not specified)
--validate: Validate data before import
--dry-run: Show what would be imported without actually importing

Examples:
export --format=csv --query="SELECT * FROM files WHERE author='Alice'" --output=alice_files.csv
import --format=csv --file=edited_files.csv --validate --dry-run
"""