using Extrudex.API.DTOs.PrintJobs;
using FluentValidation;

namespace Extrudex.API.Validators;

/// <summary>
/// Validation rules for creating a PrintJob.
/// </summary>
public class CreatePrintJobRequestValidator : AbstractValidator<CreatePrintJobRequest>
{
    private static readonly string[] ValidDataSources = { "Mqtt", "Moonraker", "Manual" };

    public CreatePrintJobRequestValidator()
    {
        RuleFor(x => x.PrinterId)
            .NotEmpty().WithMessage("PrinterId is required.");

        RuleFor(x => x.SpoolId)
            .NotEmpty().WithMessage("SpoolId is required.");

        RuleFor(x => x.PrintName)
            .NotEmpty().WithMessage("PrintName is required.")
            .MaximumLength(200).WithMessage("PrintName must not exceed 200 characters.");

        RuleFor(x => x.MmExtruded)
            .GreaterThanOrEqualTo(0).WithMessage("MmExtruded must be non-negative.");

        RuleFor(x => x.GramsDerived)
            .GreaterThanOrEqualTo(0).WithMessage("GramsDerived must be non-negative.");

        RuleFor(x => x.DataSource)
            .Must(x => ValidDataSources.Contains(x, StringComparer.OrdinalIgnoreCase))
            .WithMessage("DataSource must be 'Mqtt', 'Moonraker', or 'Manual'.");

        RuleFor(x => x.FilamentDiameterAtPrintMm)
            .GreaterThan(0).WithMessage("Filament diameter must be greater than zero.");

        RuleFor(x => x.MaterialDensityAtPrint)
            .GreaterThan(0).WithMessage("Material density must be greater than zero.");

        When(x => x.GcodeFilePath != null, () =>
        {
            RuleFor(x => x.GcodeFilePath!)
                .MaximumLength(500).WithMessage("G-code file path must not exceed 500 characters.");
        });

        When(x => x.Notes != null, () =>
        {
            RuleFor(x => x.Notes!)
                .MaximumLength(2000).WithMessage("Notes must not exceed 2000 characters.");
        });
    }
}

/// <summary>
/// Validation rules for updating a PrintJob.
/// </summary>
public class UpdatePrintJobRequestValidator : AbstractValidator<UpdatePrintJobRequest>
{
    public UpdatePrintJobRequestValidator()
    {
        RuleFor(x => x.PrinterId)
            .NotEmpty().WithMessage("PrinterId is required.");

        RuleFor(x => x.SpoolId)
            .NotEmpty().WithMessage("SpoolId is required.");

        RuleFor(x => x.PrintName)
            .NotEmpty().WithMessage("PrintName is required.")
            .MaximumLength(200).WithMessage("PrintName must not exceed 200 characters.");

        RuleFor(x => x.MmExtruded)
            .GreaterThanOrEqualTo(0).WithMessage("MmExtruded must be non-negative.");

        RuleFor(x => x.GramsDerived)
            .GreaterThanOrEqualTo(0).WithMessage("GramsDerived must be non-negative.");

        When(x => x.GcodeFilePath != null, () =>
        {
            RuleFor(x => x.GcodeFilePath!)
                .MaximumLength(500).WithMessage("G-code file path must not exceed 500 characters.");
        });

        When(x => x.Notes != null, () =>
        {
            RuleFor(x => x.Notes!)
                .MaximumLength(2000).WithMessage("Notes must not exceed 2000 characters.");
        });
    }
}

/// <summary>
/// Validation rules for updating a PrintJob status.
/// </summary>
public class UpdatePrintJobStatusRequestValidator : AbstractValidator<UpdatePrintJobStatusRequest>
{
    private static readonly string[] ValidStatuses = { "Queued", "Printing", "Completed", "Cancelled", "Failed" };

    public UpdatePrintJobStatusRequestValidator()
    {
        RuleFor(x => x.Status)
            .NotEmpty().WithMessage("Status is required.")
            .Must(x => ValidStatuses.Contains(x, StringComparer.OrdinalIgnoreCase))
            .WithMessage("Status must be one of: Queued, Printing, Completed, Cancelled, Failed.");
    }
}