Migrate model name to APIController

generativeai/src/main/java/com/google/ai/client/generativeai/GenerativeModel.kt

@@ -61,13 +61,7 @@ internal constructor(
     apiKey: String,
     generationConfig: GenerationConfig? = null,
     safetySettings: List<SafetySetting>? = null,
-  ) : this(
-    modelName,
-    apiKey,
-    generationConfig,
-    safetySettings,
-    APIController(apiKey, fullModelName(modelName))
-  )
+  ) : this(modelName, apiKey, generationConfig, safetySettings, APIController(apiKey, modelName))
 
   /**
    * Generates a response from the backend with the provided [Content]s.
@@ -188,11 +182,3 @@ internal constructor(
       ?.let { throw ResponseStoppedException(this) }
   }
 }
-
-/**
- * Ensures the model name provided has a `models/` prefix
- *
- * Models must be prepended with the `models/` prefix when communicating with the backend.
- */
-private fun fullModelName(name: String): String =
-  name.takeIf { it.startsWith("models/") } ?: "models/$name"

generativeai/src/main/java/com/google/ai/client/generativeai/internal/api/APIController.kt

@@ -63,9 +63,11 @@ internal val JSON = Json {
  */
 internal class APIController(
   private val key: String,
-  private val model: String,
+  model: String,
   httpEngine: HttpClientEngine = OkHttp.create()
 ) {
+  private val model = fullModelName(model)
+
   private val client =
     HttpClient(httpEngine) {
       install(HttpTimeout) {
@@ -106,6 +108,14 @@ internal class APIController(
   }
 }
 
+/**
+ * Ensures the model name provided has a `models/` prefix
+ *
+ * Models must be prepended with the `models/` prefix when communicating with the backend.
+ */
+private fun fullModelName(name: String): String =
+  name.takeIf { it.startsWith("models/") } ?: "models/$name"
+
 /**
  * Makes a POST request to the specified [url] and returns a [Flow] of deserialized response objects
  * of type [R]. The response is expected to be a stream of JSON objects that are parsed in real-time