#!/usr/bin/env python3
"""
代码分析器
扫描代码文件，检测常见问题
"""
import json
import sys
import os
import re
from pathlib import Path


def analyze_file(file_path):
    """分析单个代码文件"""
    issues = []

    try:
        with open(file_path, 'r', encoding='utf-8', errors='ignore') as f:
            content = f.read()
            lines = content.split('\n')

        # 检测模式
        patterns = {
            'TODO': r'TODO|FIXME|XXX|HACK',
            'empty_function': r'def\s+\w+\s*\([^)]*\)\s*:\s*(pass|#\s*.*|.{0})',
            'empty_method': r'(def|async\s+def)\s+\w+\s*\([^)]*\)\s*:\s*(pass|.{0})',
            'commented_code': r'^\s*#.*=[^#\n]|^\s*#.*\([^)]*\)',
            'placeholder': r'(NotImplementedError|raise\s+NotImplemented|pass\s*#.*placeholder)',
            'debug_print': r'print\([^)]*\)|console\.log\([^)]*\)',
        }

        for line_num, line in enumerate(lines, 1):
            for issue_type, pattern in patterns.items():
                if re.search(pattern, line, re.IGNORECASE):
                    issues.append({
                        'type': issue_type,
                        'line': line_num,
                        'content': line.strip(),
                        'file': str(file_path)
                    })

    except Exception as e:
        issues.append({
            'type': 'read_error',
            'message': str(e),
            'file': str(file_path)
        })

    return issues


def detect_project_changes(project_root):
    """检测项目中的代码变更"""
    import subprocess

    try:
        # 获取 Git 变更的文件
        result = subprocess.run(
            ['git', 'diff', '--name-only', 'HEAD'],
            cwd=project_root,
            capture_output=True,
            text=True,
            timeout=5
        )

        if result.returncode == 0:
            changed_files = result.stdout.strip().split('\n')
            changed_files = [f for f in changed_files if f]

            # 过滤代码文件
            code_extensions = {'.py', '.js', '.ts', '.jsx', '.tsx', '.java', '.go', '.rs', '.c', '.cpp', '.h'}
            code_files = [
                Path(project_root) / f
                for f in changed_files
                if Path(f).suffix.lower() in code_extensions
            ]
            return code_files

    except Exception:
        pass

    # 如果 Git 不可用，扫描所有代码文件
    code_extensions = {'.py', '.js', '.ts', '.jsx', '.tsx', '.java', '.go', '.rs', '.c', '.cpp', '.h'}
    project_path = Path(project_root)
    code_files = []

    for ext in code_extensions:
        code_files.extend(project_path.rglob(f'*{ext}'))

    return code_files


def analyze_code_quality(project_root):
    """分析代码质量"""
    all_issues = {
        'todo': [],
        'empty_functions': [],
        'commented_code': [],
        'placeholders': [],
        'debug_statements': [],
        'other': []
    }

    # 获取需要分析的文件
    files_to_analyze = detect_project_changes(project_root)

    for file_path in files_to_analyze:
        if not file_path.exists():
            continue

        issues = analyze_file(file_path)

        for issue in issues:
            issue_type = issue['type']

            if issue_type == 'TODO':
                all_issues['todo'].append(issue)
            elif 'empty' in issue_type:
                all_issues['empty_functions'].append(issue)
            elif issue_type == 'commented_code':
                all_issues['commented_code'].append(issue)
            elif issue_type == 'placeholder':
                all_issues['placeholders'].append(issue)
            elif issue_type == 'debug_print':
                all_issues['debug_statements'].append(issue)
            else:
                all_issues['other'].append(issue)

    return all_issues


def calculate_completeness_score(issues):
    """计算完整度评分"""
    total_issues = sum(len(v) for v in issues.values())

    # 严重问题权重
    critical_issues = len(issues['empty_functions']) + len(issues['placeholders'])
    minor_issues = len(issues['todo']) + len(issues['commented_code']) + len(issues['debug_statements'])

    # 计算分数（0-100）
    score = 100 - (critical_issues * 15) - (minor_issues * 5)
    return max(0, min(100, score))


def main():
    """主函数"""
    # 从命令行参数或 stdin 获取项目路径
    if len(sys.argv) > 1:
        project_root = sys.argv[1]
    else:
        project_root = os.getcwd()

    # 执行分析
    issues = analyze_code_quality(project_root)
    score = calculate_completeness_score(issues)

    # 输出结果
    result = {
        'score': score,
        'issues': issues,
        'total_issues': sum(len(v) for v in issues.values()),
        'summary': {
            'todo_count': len(issues['todo']),
            'empty_functions_count': len(issues['empty_functions']),
            'commented_code_count': len(issues['commented_code']),
            'placeholder_count': len(issues['placeholders']),
            'debug_statements_count': len(issues['debug_statements'])
        }
    }

    print(json.dumps(result, ensure_ascii=False, indent=2))


if __name__ == '__main__':
    main()