Dynamically Update Provider and Model option

README.md

@@ -27,6 +27,7 @@
     - [Max Context Lines](#max-context-lines)
 - [Copilot Options](#copilot-options)
   - [Changing the Provider and Model](#changing-the-provider-and-model)
+    - [Dynamically Updating Provider and Model](#dynamically-updating-provider-and-model)
   - [Custom Model](#custom-model)
 - [Completion Request Options](#completion-request-options)
   - [Custom Headers](#custom-headers)
@@ -275,6 +276,17 @@ There are other providers and models available. Here is a list:
 | OpenAI    | `gpt-4o`, `gpt-4o-mini`, `o1-preview`, `o1-mini`                          |
 | Anthropic | `claude-3.5-Sonnet`, `claude-3-opus`, `claude-3-sonnet`, `claude-3-haiku` |
 
+#### Dynamically Updating Provider and Model
+
+You can change the provider and model at runtime using the `setModel` method.
+
+```javascript
+copilot.setModel({
+  provider: 'anthropic',
+  model: 'claude-3-haiku',
+});
+```
+
 ### Custom Model
 
 You can use a custom AI model that isn't built into Monacopilot by setting up a `model` when you create a new Copilot. This feature lets you connect to AI models from other services or your own custom-built models.

src/classes/copilot.ts

@@ -21,13 +21,14 @@ import {
   CopilotOptions,
   CopilotProvider,
   CustomCopilotModel,
+  SetModelOptions,
 } from '../types';
 import {HTTP, joinWithAnd} from '../utils';
 
 export class Copilot {
   private readonly apiKey: string;
-  private readonly provider: CopilotProvider;
-  private readonly model: CopilotModel | CustomCopilotModel;
+  private provider: CopilotProvider;
+  private model: CopilotModel | CustomCopilotModel;
 
   /**
    * Initializes the Copilot instance with an API key and optional configuration.
@@ -145,4 +146,14 @@ export class Copilot {
       return {error: errorDetails.message, completion: null};
     }
   }
+
+  /**
+   * Sets the model and provider for the Copilot.
+   * @param options - The options for setting the model and provider.
+   */
+  public setModel({model, provider}: SetModelOptions): void {
+    this.model = model;
+    this.provider = provider;
+    this.validateInputs();
+  }
 }

src/types/copilot.ts

@@ -111,6 +111,21 @@ export type CustomCopilotModel = {
   transformResponse: CustomCopilotModelTransformResponse;
 };
 
+export type SetModelOptions = {
+  /**
+   * The provider to set (e.g., 'openai', 'anthropic', 'groq').
+   */
+  provider: CopilotProvider;
+  /**
+   * The model to use for copilot AI requests.
+   * This can be either:
+   * 1. A predefined model name (e.g. 'claude-3-opus'): Use this option if you want to use a model that is built into Monacopilot.
+   *    If you choose this option, also set the `provider` property to the corresponding provider of the model.
+   * 2. A custom model configuration object: Use this option if you want to use a AI model from a third-party service or your own custom model.
+   */
+  model: CopilotModel | CustomCopilotModel;
+};
+
 export type CustomCopilotModelConfig = (
   apiKey: string,
   prompt: {