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using FluentValidation;

namespace AiDevProject.Core.Validation;

/// <summary>
/// User creation validator.
/// </summary>
public class CreateUserValidator : AbstractValidator<CreateUserRequest>
{
    public CreateUserValidator()
    {
        RuleFor(x => x.Email)
            .NotEmpty().WithMessage("Email is required")
            .EmailAddress().WithMessage("Invalid email format");

        RuleFor(x => x.Password)
            .NotEmpty().WithMessage("Password is required")
            .MinimumLength(8).WithMessage("Password must be at least 8 characters")
            .Matches(@"[A-Z]").WithMessage("Password must contain uppercase letter")
            .Matches(@"[a-z]").WithMessage("Password must contain lowercase letter")
            .Matches(@"[0-9]").WithMessage("Password must contain number");

        RuleFor(x => x.Name)
            .MaximumLength(100).WithMessage("Name too long")
            .When(x => !string.IsNullOrEmpty(x.Name));
    }
}

/// <summary>
/// User creation request DTO.
/// </summary>
public record CreateUserRequest(
    string Email,
    string Password,
    string? Name = null
);