⚡ Translation now with cache

DysonNetwork.Sphere/Translation/TranslationController.cs

@@ -1,4 +1,7 @@
 using DysonNetwork.Pass.Account;
+using System.Security.Cryptography;
+using System.Text;
+using DysonNetwork.Shared.Cache;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 
@@ -6,8 +9,17 @@ namespace DysonNetwork.Sphere.Translation;
 
 [ApiController]
 [Route("/api/translate")]
-public class TranslationController(ITranslationProvider provider) : ControllerBase
+public class TranslationController(ITranslationProvider provider, ICacheService cache) : ControllerBase
 {
+    private const string CacheKeyPrefix = "translation:";
+    
+    private static string GenerateCacheKey(string text, string targetLanguage)
+    {
+        var inputBytes = Encoding.UTF8.GetBytes($"{text}:{targetLanguage}");
+        var hashBytes = SHA256.HashData(inputBytes);
+        return $"{CacheKeyPrefix}{Convert.ToHexString(hashBytes)}";
+    }
+
     [HttpPost]
     [Authorize]
     public async Task<ActionResult<string>> Translate([FromBody] string text, [FromQuery(Name = "lang")] string targetLanguage)
@@ -15,7 +27,22 @@ public class TranslationController(ITranslationProvider provider) : ControllerBa
         if (HttpContext.Items["CurrentUser"] is not Account currentUser) return Unauthorized();
         if (currentUser.PerkSubscription is null)
             return StatusCode(403, "You need a subscription to use this feature.");
-
-        return await provider.Translate(text, targetLanguage);
+        
+        // Generate cache key
+        var cacheKey = GenerateCacheKey(text, targetLanguage);
+        
+        // Try to get from cache first
+        var (found, cachedResult) = await cache.GetAsyncWithStatus<string>(cacheKey);
+        if (found && cachedResult != null)
+            return Ok(cachedResult);
+            
+        // If not in cache, translate and cache the result
+        var result = await provider.Translate(text, targetLanguage);
+        if (!string.IsNullOrEmpty(result))
+        {
+            await cache.SetAsync(cacheKey, result, TimeSpan.FromHours(24)); // Cache for 24 hours
+        }
+        
+        return result;
     }
 }