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Author: Android-PowerUser

app/src/main/kotlin/com/google/ai/sample/util/ModelPreferences.kt

@@ -0,0 +1,57 @@
+// --- START OF FILE ModelPreferences.kt ---
+package com.google.ai.sample.util
+
+import android.content.Context
+import android.util.Log
+
+/**
+ * Helper object to save and load the selected AI model name using SharedPreferences.
+ */
+object ModelPreferences {
+    private const val TAG = "ModelPreferences"
+    private const val PREFS_NAME = "ai_model_prefs"
+    private const val KEY_MODEL_NAME = "current_model_name"
+
+    // Definiere hier deine Standard- und High-Modellnamen konsistent
+    const val LOW_REASONING_MODEL = "gemini-2.0-flash-lite"
+    const val HIGH_REASONING_MODEL = "gemini-2.5-pro-exp-03-25"
+
+    // Das Standardmodell, das verwendet wird, wenn nichts gespeichert ist.
+    private const val DEFAULT_MODEL = LOW_REASONING_MODEL
+
+    /**
+     * Saves the selected model name to SharedPreferences.
+     * @param context Application context.
+     * @param modelName The model name string to save.
+     */
+    fun saveModelName(context: Context, modelName: String) {
+        try {
+            context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+                .edit()
+                .putString(KEY_MODEL_NAME, modelName)
+                .apply()
+            Log.i(TAG, "Saved model preference: $modelName")
+        } catch (e: Exception) {
+            Log.e(TAG, "Error saving model preference: $modelName", e)
+        }
+    }
+
+    /**
+     * Loads the saved model name from SharedPreferences.
+     * Returns the default model name if nothing is saved.
+     * @param context Application context.
+     * @return The loaded or default model name string.
+     */
+    fun loadModelName(context: Context): String {
+        return try {
+            val name = context.getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE)
+                .getString(KEY_MODEL_NAME, DEFAULT_MODEL) ?: DEFAULT_MODEL
+            Log.i(TAG, "Loaded model preference: $name")
+            name
+        } catch (e: Exception) {
+            Log.e(TAG, "Error loading model preference, returning default: $DEFAULT_MODEL", e)
+            DEFAULT_MODEL
+        }
+    }
+}
+// --- END OF FILE ModelPreferences.kt ---