#!/usr/bin/env dart

/// Augment 代码生成规范验证脚本
/// 用于验证生成的代码是否符合规范要求

import 'dart:convert';
import 'dart:io';

void main(List<String> args) async {
  print('🔍 Augment 代码生成规范验证');
  print('=' * 50);

  final validator = StandardsValidator();

  try {
    await validator.validateAll();
    print('\n✅ 所有检查通过！代码符合 Augment 规范。');
  } catch (e) {
    print('\n❌ 验证失败：$e');
    exit(1);
  }
}

class StandardsValidator {
  final List<String> errors = [];
  final List<String> warnings = [];

  /// 验证所有规范
  Future<void> validateAll() async {
    print('📋 开始验证...\n');

    await _validateSwaggerJson();
    await _validateGeneratedFiles();
    await _validateCodeQuality();
    await _validateNamingConventions();
    await _validateTypeConsistency();

    _printResults();

    if (errors.isNotEmpty) {
      throw Exception('发现 ${errors.length} 个错误');
    }
  }

  /// 验证 swagger.json
  Future<void> _validateSwaggerJson() async {
    print('🔍 验证 swagger.json...');

    final swaggerFile = File('swagger.json');
    if (!swaggerFile.existsSync()) {
      errors.add('swagger.json 文件不存在');
      return;
    }

    try {
      final content = await swaggerFile.readAsString();
      final swagger = jsonDecode(content) as Map<String, dynamic>;

      // 检查 OpenAPI 版本
      final openapi = swagger['openapi'] as String?;
      if (openapi == null || !openapi.startsWith('3.0')) {
        errors.add('OpenAPI 版本必须是 3.0.x，当前：$openapi');
      }

      // 检查基本结构
      if (!swagger.containsKey('paths')) {
        errors.add('swagger.json 缺少 paths 定义');
      }

      if (!swagger.containsKey('components')) {
        warnings.add('swagger.json 缺少 components 定义');
      }

      // 检查 schemas
      final components = swagger['components'] as Map<String, dynamic>?;
      if (components != null) {
        final schemas = components['schemas'] as Map<String, dynamic>?;
        if (schemas == null || schemas.isEmpty) {
          warnings.add('components/schemas 为空，可能影响类型生成');
        }
      }

      print('  ✅ swagger.json 格式正确');
    } catch (e) {
      errors.add('swagger.json 格式错误：$e');
    }
  }

  /// 验证生成的文件
  Future<void> _validateGeneratedFiles() async {
    print('🔍 验证生成的文件...');

    final generatorDir = Directory('generator');
    if (!generatorDir.existsSync()) {
      errors.add('generator 目录不存在');
      return;
    }

    // 检查目录结构
    final apiDir = Directory('generator/api');
    final modelsDir = Directory('generator/api_models');

    if (!apiDir.existsSync()) {
      errors.add('generator/api 目录不存在');
    }

    if (!modelsDir.existsSync()) {
      errors.add('generator/api_models 目录不存在');
    }

    // 检查 index.dart 文件
    final indexFile = File('generator/api_models/index.dart');
    if (!indexFile.existsSync()) {
      warnings.add('generator/api_models/index.dart 文件不存在');
    }

    print('  ✅ 文件结构正确');
  }

  /// 验证代码质量
  Future<void> _validateCodeQuality() async {
    print('🔍 验证代码质量...');

    // 运行 dart analyze
    final analyzeResult = await Process.run('dart', ['analyze', 'generator/']);

    if (analyzeResult.exitCode != 0) {
      final output = analyzeResult.stdout.toString();
      final errorOutput = analyzeResult.stderr.toString();

      if (output.contains('error') || errorOutput.contains('error')) {
        errors.add('dart analyze 发现错误：\n$output\n$errorOutput');
      } else if (output.contains('warning') ||
          errorOutput.contains('warning')) {
        warnings.add('dart analyze 发现警告：\n$output\n$errorOutput');
      }
    } else {
      print('  ✅ 静态分析通过');
    }
  }

  /// 验证命名规范
  Future<void> _validateNamingConventions() async {
    print('🔍 验证命名规范...');

    final apiDir = Directory('generator/api');
    if (apiDir.existsSync()) {
      await for (final file in apiDir.list()) {
        if (file is File && file.path.endsWith('.dart')) {
          final fileName = file.path.split('/').last;

          // API 文件应该以 _api.dart 结尾
          if (!fileName.endsWith('_api.dart')) {
            errors.add('API 文件命名不规范：$fileName（应该以 _api.dart 结尾）');
          }

          // 检查文件名是否为 snake_case
          final baseName = fileName.replaceAll('_api.dart', '');
          if (!_isSnakeCase(baseName)) {
            errors.add('API 文件名不是 snake_case：$fileName');
          }
        }
      }
    }

    final modelsDir = Directory('generator/api_models');
    if (modelsDir.existsSync()) {
      await for (final file in modelsDir.list()) {
        if (file is File &&
            file.path.endsWith('.dart') &&
            !file.path.endsWith('index.dart')) {
          final fileName = file.path.split('/').last;
          final baseName = fileName.replaceAll('.dart', '');

          // 检查模型文件名是否为 snake_case
          if (!_isSnakeCase(baseName)) {
            errors.add('模型文件名不是 snake_case：$fileName');
          }
        }
      }
    }

    print('  ✅ 命名规范检查完成');
  }

  /// 验证类型一致性
  Future<void> _validateTypeConsistency() async {
    print('🔍 验证类型一致性...');

    // 检查是否有硬编码的类型推断
    final generatorFile = File('lib/generators/retrofit_api_generator.dart');
    if (generatorFile.existsSync()) {
      final content = await generatorFile.readAsString();

      // 检查是否还有硬编码的类型映射
      final hardcodedPatterns = [
        'TaskInfoResult',
        'if.*contains.*login.*return',
        'if.*contains.*task.*return',
        'if.*tag.*contains.*return',
      ];

      for (final pattern in hardcodedPatterns) {
        final regex = RegExp(pattern, caseSensitive: false);
        if (regex.hasMatch(content)) {
          errors.add('发现硬编码类型推断：$pattern');
        }
      }
    }

    print('  ✅ 类型一致性检查完成');
  }

  /// 检查是否为 snake_case
  bool _isSnakeCase(String name) {
    return RegExp(r'^[a-z][a-z0-9_]*$').hasMatch(name);
  }

  /// 打印验证结果
  void _printResults() {
    print('\n📊 验证结果：');
    print('  错误：${errors.length}');
    print('  警告：${warnings.length}');

    if (errors.isNotEmpty) {
      print('\n❌ 错误列表：');
      for (int i = 0; i < errors.length; i++) {
        print('  ${i + 1}. ${errors[i]}');
      }
    }

    if (warnings.isNotEmpty) {
      print('\n⚠️  警告列表：');
      for (int i = 0; i < warnings.length; i++) {
        print('  ${i + 1}. ${warnings[i]}');
      }
    }
  }
}