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SF-74: Infrastructure — UserPreferencesService (IDistributedCache, no try-catch)

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tekh
2026-09-03 14:57:32 +02:00
parent 0fdfe991ea
commit a9ff0d88f2
1 changed files with 15 additions and 10 deletions
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25
EnvelopeGenerator.Infrastructure/UserPreferencesService.cs
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@@ -16,26 +16,31 @@ public sealed class UserPreferencesService(IDistributedCache cache) : IUserPrefe
{
private const string KeyPrefix = "signflow.user-preferences:";
private static string BuildKey(string username) => $"{KeyPrefix}{username}";
private static string BuildKey(string id) => $"{KeyPrefix}{id}";
/// <inheritdoc />
public async Task<UserPreferencesDto> GetAsync(string username, CancellationToken ct = default)
public async Task<UserPreferencesDto> GetOrCreateAsync(string id, CancellationToken ct = default)
{
var json = await cache.GetStringAsync(BuildKey(username), ct);
if (json is null)
return new UserPreferencesDto();
return JsonSerializer.Deserialize<UserPreferencesDto>(json) ?? new UserPreferencesDto();
var json = await cache.GetStringAsync(BuildKey(id), ct);
if(json is not null && JsonSerializer.Deserialize<UserPreferencesDto>(json) is UserPreferencesDto pref)
{
return pref;
}
else
{
// init new
await SaveAsync(id, UserPreferencesDto.Default, ct);
return UserPreferencesDto.Default;
}
}
/// <inheritdoc />
public async Task SaveAsync(string username, UserPreferencesDto preferences, CancellationToken ct = default)
public async Task SaveAsync(string id, UserPreferencesDto preferences, CancellationToken ct = default)
{
var json = JsonSerializer.Serialize(preferences);
// No expiration — preferences are stored indefinitely.
await cache.SetStringAsync(BuildKey(username), json, new DistributedCacheEntryOptions(), ct);
await cache.SetStringAsync(BuildKey(id), json, new DistributedCacheEntryOptions(), ct);
}
}
#endif