using FluentValidation;
using ProposalSystem.Application.DTOs;

namespace ProposalSystem.Application.Validators;

/// <summary>
/// PR5: Validates CreatePricingLibraryItemRequest payloads.
/// </summary>
public class CreatePricingLibraryItemValidator : AbstractValidator<CreatePricingLibraryItemRequest>
{
    public CreatePricingLibraryItemValidator()
    {
        RuleFor(x => x.Title)
            .NotEmpty().WithMessage("Title is required")
            .MaximumLength(200);

        RuleFor(x => x.Description)
            .MaximumLength(5000)
            .When(x => x.Description != null);

        RuleFor(x => x.ServiceCategory).IsInEnum();

        RuleFor(x => x.Unit)
            .MaximumLength(50)
            .When(x => x.Unit != null);

        RuleFor(x => x.UnitPrice)
            .GreaterThanOrEqualTo(0).WithMessage("Unit price must be zero or positive")
            .When(x => x.UnitPrice.HasValue);

        RuleFor(x => x.Keywords)
            .MaximumLength(2000)
            .When(x => x.Keywords != null);

        RuleFor(x => x.Source)
            .MaximumLength(100)
            .When(x => x.Source != null);
    }
}