ANTOOZA-BACKEND/Application/Features/Admin/Faq/Item/Update/Handler.cs

using Application.Abstractions.Messaging;
using Application.Abstractions.Data;
using Application.Abstractions.Cache;
using SharedKernel.Results;
using SharedKernel.Storage;
using Microsoft.EntityFrameworkCore;

namespace Application.Features.Admin.Faq.Item.Update;

public sealed class Handler(IAppDbContext db, IEditorImageService editorImage, ICacheService cache) : ICommandHandler<Command, Result>
{
    public async Task<Result> Handle(Command request, CancellationToken ct)
    {
        var item = await db.FaqItem.FirstOrDefaultAsync(c => c.ID == request.ID, ct);
        if (item is null)
        {
            return Result.Failure(Error.NotFound("Faq.NotFound", "해당 FAQ를 찾을 수 없습니다."));
        }

        var path = new FileStoragePath(UploadTarget.Editor, UploadFolder.Faq, request.ID);

        item.Update(
            request.CategoryID,
            request.Question,
            await editorImage.UploadAsync(request.Answer, path, ct),
            request.Order,
            request.IsActive
        );

        await db.SaveChangesAsync(ct);
        await cache.RemoveByPrefixAsync("faq:item:", ct);

        return Result.Success();
    }
}