TekH
2e634361c5
Introduced `UserPreferencesDto` to represent UI preferences, including theme, dark mode, and grid layouts. Added the `IUserPreferencesService` interface and implemented it in `UserPreferencesService` to manage preferences stored in the distributed cache (`dbo.TBDD_CACHE`). Registered `UserPreferencesService` in dependency injection and added a NuGet reference for `Microsoft.Extensions.Caching.Abstractions`. Created `UserPreferencesController` with `GET` and `PUT` endpoints to retrieve and save user preferences. Validated theme names in the `PUT` endpoint. Updated `Program.cs` to ensure proper service registration.
42 lines
1.6 KiB
C#
42 lines
1.6 KiB
C#
#if NET
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using System.Text.Json;
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using Microsoft.Extensions.Caching.Distributed;
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using EnvelopeGenerator.Application.Common.Dto;
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using EnvelopeGenerator.Application.Common.Interfaces.Services;
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namespace EnvelopeGenerator.Infrastructure;
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/// <summary>
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/// Implements user preferences storage using the distributed cache (dbo.TBDD_CACHE).
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/// No DB schema changes required — uses the existing SQL Server distributed cache table.
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/// Cache key schema: "signflow.user-preferences:{username}"
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/// Expiration: indefinite (no TTL) — preferences persist until explicitly overwritten.
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/// </summary>
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public sealed class UserPreferencesService(IDistributedCache cache) : IUserPreferencesService
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{
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private const string KeyPrefix = "signflow.user-preferences:";
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private static string BuildKey(string username) => $"{KeyPrefix}{username}";
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/// <inheritdoc />
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public async Task<UserPreferencesDto> GetAsync(string username, CancellationToken ct = default)
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{
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var json = await cache.GetStringAsync(BuildKey(username), ct);
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if (json is null)
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return new UserPreferencesDto();
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return JsonSerializer.Deserialize<UserPreferencesDto>(json) ?? new UserPreferencesDto();
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}
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/// <inheritdoc />
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public async Task SaveAsync(string username, UserPreferencesDto preferences, CancellationToken ct = default)
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{
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var json = JsonSerializer.Serialize(preferences);
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// No expiration — preferences are stored indefinitely.
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await cache.SetStringAsync(BuildKey(username), json, new DistributedCacheEntryOptions(), ct);
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}
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}
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#endif
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