♻️ Refactor cache system with redis

🐛 Add lock to check in prevent multiple at the same time

DysonNetwork.Sphere/Sticker/StickerService.cs

@@ -1,6 +1,5 @@
 using DysonNetwork.Sphere.Storage;
 using Microsoft.EntityFrameworkCore;
-
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Caching.Memory;
 using System;
@@ -8,19 +7,21 @@ using System.Linq;
 using System.Threading.Tasks;
 
 namespace DysonNetwork.Sphere.Sticker;
-public class StickerService(AppDatabase db, FileService fs, IMemoryCache cache)
+
+public class StickerService(AppDatabase db, FileService fs, ICacheService cache)
 {
     private static readonly TimeSpan CacheDuration = TimeSpan.FromMinutes(15);
-    
+
     public async Task<Sticker> CreateStickerAsync(Sticker sticker)
     {
         db.Stickers.Add(sticker);
         await db.SaveChangesAsync();
-        
+
         await fs.MarkUsageAsync(sticker.Image, 1);
 
         return sticker;
     }
+
     public async Task<Sticker> UpdateStickerAsync(Sticker sticker, CloudFile? newImage)
     {
         if (newImage != null)
@@ -32,53 +33,54 @@ public class StickerService(AppDatabase db, FileService fs, IMemoryCache cache)
 
         db.Stickers.Update(sticker);
         await db.SaveChangesAsync();
-        
+
         // Invalidate cache for this sticker
-        PurgeStickerCache(sticker);
+        await PurgeStickerCache(sticker);
 
         return sticker;
     }
+
     public async Task DeleteStickerAsync(Sticker sticker)
     {
         db.Stickers.Remove(sticker);
         await db.SaveChangesAsync();
         await fs.MarkUsageAsync(sticker.Image, -1);
-        
+
         // Invalidate cache for this sticker
-        PurgeStickerCache(sticker);
+        await PurgeStickerCache(sticker);
     }
+
     public async Task DeleteStickerPackAsync(StickerPack pack)
     {
         var stickers = await db.Stickers
             .Include(s => s.Image)
             .Where(s => s.PackId == pack.Id)
             .ToListAsync();
-    
+
         var images = stickers.Select(s => s.Image).ToList();
-        
+
         db.Stickers.RemoveRange(stickers);
         db.StickerPacks.Remove(pack);
         await db.SaveChangesAsync();
-        
+
         await fs.MarkUsageRangeAsync(images, -1);
-        
+
         // Invalidate cache for all stickers in this pack
         foreach (var sticker in stickers)
         {
             PurgeStickerCache(sticker);
         }
     }
-    
+
     public async Task<Sticker?> LookupStickerByIdentifierAsync(string identifier)
     {
         identifier = identifier.ToLower();
         // Try to get from the cache first
         var cacheKey = $"StickerLookup_{identifier}";
-        if (cache.TryGetValue(cacheKey, out Sticker? cachedSticker))
-        {
+        var cachedSticker = await cache.GetAsync<Sticker>(cacheKey);
+        if (cachedSticker is not null)
             return cachedSticker;
-        }
-        
+
         // If not in cache, fetch from the database
         IQueryable<Sticker> query = db.Stickers
             .Include(e => e.Pack)
@@ -86,20 +88,20 @@ public class StickerService(AppDatabase db, FileService fs, IMemoryCache cache)
         query = Guid.TryParse(identifier, out var guid)
             ? query.Where(e => e.Id == guid)
             : query.Where(e => (e.Pack.Prefix + e.Slug).ToLower() == identifier);
-            
+
         var sticker = await query.FirstOrDefaultAsync();
-        
+
         // Store in cache if found
         if (sticker != null)
-            cache.Set(cacheKey, sticker, CacheDuration);
-        
+            await cache.SetAsync(cacheKey, sticker, CacheDuration);
+
         return sticker;
     }
-    
-    private void PurgeStickerCache(Sticker sticker)
+
+    private async Task PurgeStickerCache(Sticker sticker)
     {
         // Remove both possible cache entries
-        cache.Remove($"StickerLookup_{sticker.Id}");
-        cache.Remove($"StickerLookup_{sticker.Pack.Prefix}{sticker.Slug}");
+        await cache.RemoveAsync($"StickerLookup_{sticker.Id}");
+        await cache.RemoveAsync($"StickerLookup_{sticker.Pack.Prefix}{sticker.Slug}");
     }
 }