Updated settings service to support generic types with JSON serialization/deserialization, adjusted setup wizard checks and modified database schema for proper JSONB storage.

Moonlight.Api/Services/SettingsService.cs

@@ -1,4 +1,5 @@
-using Microsoft.EntityFrameworkCore;
+using System.Text.Json;
+using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Caching.Memory;
 using Microsoft.Extensions.Options;
 using Moonlight.Api.Configuration;
@@ -26,31 +27,32 @@ public class SettingsService
         Options = options;
     }
 
-    public async Task<string?> GetValueAsync(string key)
+    public async Task<T?> GetValueAsync<T>(string key)
     {
         var cacheKey = string.Format(CacheKey, key);
 
-        if (!Cache.TryGetValue<string>(cacheKey, out var value))
-        {
-            var retrievedValue = await Repository
-                .Query()
-                .Where(x => x.Key == key)
-                .Select(o => o.Value)
-                .FirstOrDefaultAsync();
+        if (Cache.TryGetValue<string>(cacheKey, out var value))
+            return JsonSerializer.Deserialize<T>(value!);
+        
+        value = await Repository
+            .Query()
+            .Where(x => x.Key == key)
+            .Select(o => o.ValueJson)
+            .FirstOrDefaultAsync();
+            
+        if(string.IsNullOrEmpty(value))
+            return default;
 
-            Cache.Set(
-                cacheKey,
-                retrievedValue,
-                TimeSpan.FromMinutes(Options.Value.CacheMinutes)
-            );
+        Cache.Set(
+            cacheKey,
+            value,
+            TimeSpan.FromMinutes(Options.Value.CacheMinutes)
+        );
 
-            return retrievedValue;
-        }
-
-        return value;
+        return JsonSerializer.Deserialize<T>(value);
     }
 
-    public async Task SetValueAsync(string key, string value)
+    public async Task SetValueAsync<T>(string key, T value)
     {
         var cacheKey = string.Format(CacheKey, key);
         
@@ -58,9 +60,11 @@ public class SettingsService
             .Query()
             .FirstOrDefaultAsync(x => x.Key == key);
 
+        var json = JsonSerializer.Serialize(value);
+        
         if (option != null)
         {
-            option.Value = value;
+            option.ValueJson = json;
             await Repository.UpdateAsync(option);
         }
         else
@@ -68,7 +72,7 @@ public class SettingsService
             option = new SettingsOption()
             {
                 Key = key,
-                Value = value
+                ValueJson = json
             };
             
             await Repository.AddAsync(option);