Foxnouns.NET/Foxnouns.Backend/Jobs/UserAvatarUpdateInvocable.cs

79 lines
No EOL
2.6 KiB
C#

using System.Security.Cryptography;
using Coravel.Invocable;
using Foxnouns.Backend.Database;
using Foxnouns.Backend.Extensions;
using Foxnouns.Backend.Services;
namespace Foxnouns.Backend.Jobs;
public class UserAvatarUpdateInvocable(DatabaseContext db, ObjectStorageService objectStorage, ILogger logger)
: IInvocable, IInvocableWithPayload<AvatarUpdatePayload>
{
private readonly ILogger _logger = logger.ForContext<UserAvatarUpdateInvocable>();
public required AvatarUpdatePayload Payload { get; set; }
public async Task Invoke()
{
if (Payload.NewAvatar != null) await UpdateUserAvatarAsync(Payload.Id, Payload.NewAvatar);
else await ClearUserAvatarAsync(Payload.Id);
}
private async Task UpdateUserAvatarAsync(Snowflake id, string newAvatar)
{
_logger.Debug("Updating avatar for user {MemberId}", id);
var user = await db.Users.FindAsync(id);
if (user == null)
{
_logger.Warning("Update avatar job queued for {UserId} but no user with that ID exists", id);
return;
}
try
{
var image = await newAvatar.ConvertBase64UriToAvatar();
var hash = Convert.ToHexString(await SHA256.HashDataAsync(image)).ToLower();
image.Seek(0, SeekOrigin.Begin);
var prevHash = user.Avatar;
await objectStorage.PutObjectAsync(Path(id, hash), image, "image/webp");
user.Avatar = hash;
await db.SaveChangesAsync();
if (prevHash != null && prevHash != hash)
await objectStorage.RemoveObjectAsync(Path(id, prevHash));
_logger.Information("Updated avatar for user {UserId}", id);
}
catch (ArgumentException ae)
{
_logger.Warning("Invalid data URI for new avatar for user {UserId}: {Reason}", id, ae.Message);
}
}
private async Task ClearUserAvatarAsync(Snowflake id)
{
_logger.Debug("Clearing avatar for user {MemberId}", id);
var user = await db.Users.FindAsync(id);
if (user == null)
{
_logger.Warning("Clear avatar job queued for {UserId} but no user with that ID exists", id);
return;
}
if (user.Avatar == null)
{
_logger.Warning("Clear avatar job queued for {UserId} with null avatar", id);
return;
}
await objectStorage.RemoveObjectAsync(Path(user.Id, user.Avatar));
user.Avatar = null;
await db.SaveChangesAsync();
}
public static string Path(Snowflake id, string hash) => $"users/{id}/avatars/{hash}.webp";
}