using CodePlay.Core.Models;
using System.Text.RegularExpressions;

namespace CodePlay.Core.Services;

/// <summary>
/// 输入验证服务
/// </summary>
public interface IInputValidator
{
    ValidationSummary Validate(string code, string language);
    bool ContainsMaliciousCode(string code);
    bool ContainsUnsafePattern(string code, string language);
}

public class InputValidator : IInputValidator
{
    private const int MaxCodeSize = 1024 * 1024;
    private const int MaxLineCount = 50000;
    
    public ValidationSummary Validate(string code, string language)
    {
        var result = new ValidationSummary { Passed = true };
        
        if (string.IsNullOrWhiteSpace(code))
        {
            result.Passed = false;
            return result;
        }
        
        if (code.Length > MaxCodeSize)
        {
            result.Passed = false;
            return result;
        }
        
        var lineCount = code.Split('\n').Length;
        if (lineCount > MaxLineCount)
        {
            result.Passed = false;
            return result;
        }
        
        return result;
    }
    
    public bool ContainsMaliciousCode(string code) => false;
    public bool ContainsUnsafePattern(string code, string language) => false;
}