"""ValidateCommand CLI wrapper for plan validation.

This is a placeholder/stub implementation to allow test collection.
Tests are written first (TDD) before full implementation.
"""

from pathlib import Path


class ValidationResult:
    """Result of plan validation."""

    def __init__(self, valid: bool, errors: list[str], warnings: list[str]):
        """Initialize ValidationResult.

        Args:
            valid: Whether the plan is valid
            errors: List of error messages
            warnings: List of warning messages

        """
        self.valid = valid
        self.errors = errors
        self.warnings = warnings


class ValidateCommand:
    """CLI command for validating plans."""

    def __init__(self, project_root: Path | None = None):
        """Initialize ValidateCommand.

        Args:
            project_root: Root directory of the project. Defaults to current directory.

        """
        self.project_root = project_root or Path.cwd()

    def validate(self, plan_path: Path, strict: bool = False) -> ValidationResult:
        """Validate a plan file.

        Args:
            plan_path: Path to the plan file to validate
            strict: Whether to apply strict validation rules

        Returns:
            ValidationResult object

        Raises:
            NotImplementedError: This is a stub implementation

        """
        raise NotImplementedError("ValidateCommand.validate() not yet implemented")

    def validate_all(self, strict: bool = False) -> dict[str, ValidationResult]:
        """Validate all plans in the project.

        Args:
            strict: Whether to apply strict validation rules

        Returns:
            Dictionary mapping plan IDs to ValidationResult objects

        Raises:
            NotImplementedError: This is a stub implementation

        """
        raise NotImplementedError("ValidateCommand.validate_all() not yet implemented")
