Add Apr2025 Randomizer

ALttPRandomizer/Service/RandomizeService.cs

@@ -1,24 +1,41 @@
-using ALttPRandomizer.Model;
-using Microsoft.Extensions.Logging;
-using System.Threading.Tasks;
+namespace ALttPRandomizer.Service {
+    using ALttPRandomizer.Model;
+    using ALttPRandomizer.Randomizers;
+    using ALttPRandomizer.Settings;
+    using Microsoft.Extensions.DependencyInjection;
+    using Microsoft.Extensions.Logging;
+    using System;
+    using System.Reflection;
+    using System.Threading.Tasks;
 
-namespace ALttPRandomizer.Service {
     public class RandomizeService {
-        public RandomizeService(IdGenerator idGenerator, Randomizer randomizer, ILogger<RandomizeService> logger) {
+        public RandomizeService(IdGenerator idGenerator, IServiceProvider serviceProvider, ILogger<RandomizeService> logger) {
             this.IdGenerator = idGenerator;
-            this.Randomizer = randomizer;
+            this.ServiceProvider = serviceProvider;
             this.Logger = logger;
         }
 
         private ILogger<RandomizeService> Logger { get; }
 
         private IdGenerator IdGenerator { get; }
-        private Randomizer Randomizer { get; }
+        private IServiceProvider ServiceProvider { get; }
 
         public async Task<string> RandomizeSeed(SeedSettings settings) {
             var id = this.IdGenerator.GenerateId();
             this.Logger.LogInformation("Generating seed {seedId} with settings {@settings}", id, settings);
-            await this.Randomizer.Randomize(id, settings);
+
+            var fi = typeof(RandomizerInstance).GetField(settings.Randomizer.ToString(), BindingFlags.Static | BindingFlags.Public);
+
+            var randomizerKey = fi?.GetCustomAttribute<RandomizerNameAttribute>()?.Name;
+
+            if (randomizerKey == null) {
+                throw new InvalidSettingsException("Invalid randomizer: {0}", settings.Randomizer);
+            }
+
+            var randomizer = this.ServiceProvider.GetRequiredKeyedService<IRandomizer>(randomizerKey);
+            randomizer.Validate(settings);
+
+            await randomizer.Randomize(id, settings);
             return id;
         }
     }