using LiteCqrs;
using Microsoft.EntityFrameworkCore;
using TeleWave.Application.Common.Interfaces;
using TeleWave.Application.Common.Models;

namespace TeleWave.Application.Media.GetMedia;

public sealed class GetMediaAssetQueryHandler(IAppDbContext dbContext)
    : IQueryHandler<GetMediaAssetQuery, Result<MediaAssetDto>>
{
    public async Task<Result<MediaAssetDto>> Handle(
        GetMediaAssetQuery query,
        CancellationToken cancellationToken
    )
    {
        var asset = await dbContext
            .MediaAssets.AsNoTracking()
            .FirstOrDefaultAsync(x => x.Id == query.Id, cancellationToken);

        return asset is null
            ? Result.Failure<MediaAssetDto>(MediaErrors.NotFound)
            : Result.Success(MediaAssetDto.From(asset));
    }
}