chore: parse config method

src/config/index.ts

@@ -2,9 +2,20 @@ import type { DomConfig } from '@/dom'
 import type { SupportedLanguage } from '@/i18n'
 import type { LLMConfig } from '@/llms'
 
+import { DEFAULT_API_KEY, DEFAULT_BASE_URL, DEFAULT_MODEL_NAME, LLM_MAX_RETRIES } from './constants'
+
 export interface UIConfig {
 	// theme?: 'light' | 'dark'
 	language?: SupportedLanguage
 }
 
 export type PageAgentConfig = LLMConfig & DomConfig & UIConfig
+
+export function parseLLMConfig(config: LLMConfig): Required<LLMConfig> {
+	return {
+		baseURL: config.baseURL ?? DEFAULT_BASE_URL,
+		apiKey: config.apiKey ?? DEFAULT_API_KEY,
+		modelName: config.modelName ?? DEFAULT_MODEL_NAME,
+		maxRetries: config.maxRetries ?? LLM_MAX_RETRIES,
+	}
+}