using Novelly.Api.Common.Validation;

namespace Novelly.Api.Imports;

public record ImportJobResponse(
    Guid Id,
    string SourceRoot,
    Guid? NovelId,
    ImportJobStatus Status,
    string? StatusMessage,
    int ChaptersCompleted,
    int ChaptersTotal,
    DateTimeOffset CreatedAt,
    DateTimeOffset UpdatedAt);

public enum ImportReadiness
{
    Fresh,
    Resumable,
    Complete
}

public record ImportInspectionResponse(
    ImportReadiness Readiness,
    Guid? NovelId,
    int ChaptersCompleted,
    int ChaptersTotal,
    IReadOnlyList<string> CompletedPasses);

public record InspectImportRequest(string SourceRoot);

public class InspectImportRequestValidator : IModelValidator<InspectImportRequest>
{
    public ValidationResult Validate(InspectImportRequest model)
    {
        var result = new ValidationResult();

        if (string.IsNullOrWhiteSpace(model.SourceRoot))
            result.AddError("SourceRoot", "'Source Root' must not be empty.");

        return result;
    }
}

public record StartImportRequest(string SourceRoot, bool ForceRestart = false);

public class StartImportRequestValidator : IModelValidator<StartImportRequest>
{
    public ValidationResult Validate(StartImportRequest model)
    {
        var result = new ValidationResult();

        if (string.IsNullOrWhiteSpace(model.SourceRoot))
            result.AddError("SourceRoot", "'Source Root' must not be empty.");

        return result;
    }
}

public static class ImportMapping
{
    public static ImportJobResponse ToResponse(this ImportJob job) => new(
        job.Id,
        job.SourceRoot,
        job.NovelId,
        job.Status,
        job.StatusMessage,
        job.ChaptersCompleted,
        job.ChaptersTotal,
        job.CreatedAt,
        job.UpdatedAt);
}