Implemented SaveObject, LLMModel class & OllamaProvider

packages/genai/lib/llm_saveobject.dart

@@ -0,0 +1,48 @@
+import 'llm_config.dart';
+import 'providers/common.dart';
+import 'providers/providers.dart';
+
+class LLMSaveObject {
+  String endpoint;
+  String credential;
+  LLMProvider provider;
+  LLMModel selectedLLM;
+  Map<String, LLMModelConfiguration> configMap;
+
+  LLMSaveObject({
+    required this.endpoint,
+    required this.credential,
+    required this.configMap,
+    required this.selectedLLM,
+    required this.provider,
+  });
+
+  Map toJSON() {
+    Map cmap = {};
+    for (final e in configMap.entries) {
+      cmap[e.key] = e.value.toJson();
+    }
+    return {
+      'endpoint': endpoint,
+      'credential': credential,
+      'config_map': cmap,
+      'selected_llm': selectedLLM.identifier,
+      'provider': provider.name,
+    };
+  }
+
+  static LLMSaveObject fromJSON(Map json) {
+    Map<String, LLMModelConfiguration> cmap = {};
+    for (final k in json['config_map'].keys) {
+      cmap[k] = LLMModelConfiguration.fromJson(json['config_map'][k]);
+    }
+    final provider = LLMProvider.fromName(json['provider']);
+    return LLMSaveObject(
+      endpoint: json['endpoint'],
+      credential: json['credential'],
+      configMap: cmap,
+      selectedLLM: provider.getLLMByIdentifier(json['selected_llm']),
+      provider: provider,
+    );
+  }
+}