#!/usr/bin/env python3
"""
PHP Parser (PHP-Parser) - PHP AST and code structure analysis.

PHP-Parser is a PHP parser written in PHP. It parses PHP code into an
Abstract Syntax Tree (AST) that can be analyzed and modified.

PHP-Parser provides:
- Full PHP 5.0-8.1 syntax support
- AST generation and manipulation
- Code pretty-printing
- Error recovery
- Visitor pattern support
"""

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


@dataclass
class PHPClass:
    """Represents a PHP class definition."""

    name: str
    file_path: str | None = None
    line_number: int | None = None
    namespace: str | None = None
    methods: list[str] = field(default_factory=list)
    properties: list[str] = field(default_factory=list)
    parent_class: str | None = None
    interfaces: list[str] = field(default_factory=list)
    is_abstract: bool = False
    is_final: bool = False


@dataclass
class PHPFunction:
    """Represents a PHP function definition."""

    name: str
    file_path: str | None = None
    line_number: int | None = None
    namespace: str | None = None
    parameters: list[str] = field(default_factory=list)
    return_type: str | None = None


class PHPParserAST:
    """Parser for PHP Abstract Syntax Tree analysis."""

    def __init__(self):
        """Initialize PHP AST parser."""
        self.classes: list[PHPClass] = []
        self.functions: list[PHPFunction] = []

    def parse_file(self, php_file: Path) -> dict[str, Any]:
        """

        Args:
            php_file: Path to PHP file

        Returns:
            Dictionary with parsed AST structure
        """
        raise NotImplementedError("Phase 2: PHP file parsing")

    def extract_classes(self, php_code: str) -> list[PHPClass]:
        """

        Args:
            php_code: PHP source code

        Returns:
            List of PHPClass objects
        """
        raise NotImplementedError("Phase 2: Class extraction")

    def extract_functions(self, php_code: str) -> list[PHPFunction]:
        """

        Args:
            php_code: PHP source code

        Returns:
            List of PHPFunction objects
        """
        raise NotImplementedError("Phase 2: Function extraction")

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

        Returns:
            Dictionary mapping function/method names to their calls
        """
        raise NotImplementedError("Phase 2: Call graph building")

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

        Returns:
            Structure analysis results
        """
        raise NotImplementedError("Phase 2: Structure analysis")
