#!/usr/bin/env python3
"""
Composer Parser - PHP dependency and package management analysis.

Composer is the dominant package manager for PHP. This parser analyzes
composer.json and composer.lock files to understand project dependencies,
security issues, and compatibility.

Composer provides:
- Dependency management
- Lock file for reproducible builds
- Version constraint management
- Autoload configuration
- Script management
"""

from dataclasses import dataclass, field
from pathlib import Path
from typing import Any


@dataclass
class ComposerPackage:
    """Represents a Composer package dependency."""

    name: str
    version: str
    constraint: str | None = None
    is_dev: bool = False
    description: str | None = None
    license: str | None = None


@dataclass
class ComposerConfig:
    """Composer project configuration."""

    name: str | None = None
    description: str | None = None
    requires: list[ComposerPackage] = field(default_factory=list)
    requires_dev: list[ComposerPackage] = field(default_factory=list)
    autoload: dict[str, Any] = field(default_factory=dict)
    scripts: dict[str, str] = field(default_factory=dict)


class ComposerParser:
    """Parser for Composer dependency management."""

    def __init__(self):
        """Initialize Composer parser."""
        self.config: ComposerConfig | None = None
        self.installed: list[ComposerPackage] = []

    def parse_composer_json(self, json_file: Path) -> ComposerConfig:
        """

        Args:
            json_file: Path to composer.json

        Returns:
            Parsed ComposerConfig object
        """
        raise NotImplementedError("Phase 2: composer.json parsing")

    def parse_composer_lock(self, lock_file: Path) -> list[ComposerPackage]:
        """

        Args:
            lock_file: Path to composer.lock

        Returns:
            List of installed ComposerPackage objects
        """
        raise NotImplementedError("Phase 2: composer.lock parsing")

    def scan_vulnerabilities(self) -> list[dict[str, Any]]:
        """

        Returns:
            List of vulnerability findings
        """
        raise NotImplementedError("Phase 2: Vulnerability scanning")

    def detect_outdated(self) -> list[ComposerPackage]:
        """

        Returns:
            List of outdated packages with newer versions
        """
        raise NotImplementedError("Phase 2: Outdated package detection")

    def generate_report(self) -> str:
        """

        Returns:
            Formatted report string
        """
        raise NotImplementedError("Phase 2: Composer report generation")
