refactor(llm): remove unused model.ts file and update OpenAI LLM implementation

app/lib/.server/llm/anthropic-llm.ts

@@ -1,14 +1,10 @@
 import {streamText as _streamText, convertToCoreMessages } from 'ai';
 import { createAnthropic } from '@ai-sdk/anthropic';
 import { MAX_TOKENS } from './constants';
-import { getPrompts } from './prompts';
 import type { LLM } from './llm-interface';
 import type { Prompts } from './prompts-interface';
 import type { Messages, StreamingOptions }from './llm-interface';
-
-// export type Messages = Message[];
-
-// export type StreamingOptions = Omit<Parameters<typeof _streamText>[0], 'model'>;
+import { AnthropicPrompts } from './anthropic-prompts';
 
 export class AnthropicLLM implements LLM {
   private apiKey: string = '';
@@ -42,6 +38,6 @@ export class AnthropicLLM implements LLM {
   }
 
   getPrompts(): Prompts {
-    return getPrompts();
+    return new AnthropicPrompts();
   }
 }

app/lib/.server/llm/openai-llm.ts

@@ -1,14 +1,10 @@
 import { streamText as _streamText, convertToCoreMessages } from 'ai';
 import { createOpenAI } from '@ai-sdk/openai';
 import { MAX_TOKENS } from './constants';
-import { getPrompts } from './prompts';
 import type { LLM } from './llm-interface';
 import type { Prompts } from './prompts-interface';
 import type { Message, Messages, StreamingOptions }from './llm-interface';
-
-// export type Messages = Message[];
-
-// export type StreamingOptions = Omit<Parameters<typeof _streamText>[0], 'model'>;
+import { OpenAIPrompts } from './openai-prompts';
 
 export class OpenAILLM implements LLM {
   private apiKey: string = '';
@@ -28,8 +24,8 @@ export class OpenAILLM implements LLM {
     }
 
     const openai = createOpenAI({ apiKey: this.apiKey, compatibility: 'strict' });
-    type model_name_t = 'gpt-4o' | 'o1-mini' | 'o1-preview';
-    const model_name: model_name_t = process.env.OPEN_AI_MODEL as model_name_t;
+    type model_name_t = 'gpt-4o' | 'gpt-4o-mini' | 'o1-mini' | 'o1-preview';
+    const model_name = process.env.OPENAI_MODEL as model_name_t;
     const model = openai(model_name);
 
     if (model_name === 'o1-mini' || model_name === 'o1-preview') {
@@ -39,13 +35,13 @@ export class OpenAILLM implements LLM {
         };
 
         return _streamText({
-            model: model as any, // Use type assertion to bypass strict type checking
+            model,
             messages: [o1sysmessage, ...convertToCoreMessages(messages)],
             ...options,
         });    
     } else {
         return _streamText({
-            model: model as any, // Use type assertion to bypass strict type checking
+            model,
             system: this.getPrompts().getSystemPrompt(),
             messages: convertToCoreMessages(messages),
             maxTokens: MAX_TOKENS,
@@ -55,6 +51,6 @@ export class OpenAILLM implements LLM {
   }
 
   getPrompts(): Prompts {
-    return getPrompts();
+    return new OpenAIPrompts();
   }
 }

app/lib/.server/llm/prompts.ts

@@ -1,42 +0,0 @@
-import { MODIFICATIONS_TAG_NAME, WORK_DIR } from '~/utils/constants';
-import { allowedHTMLElements } from '~/utils/markdown';
-import { stripIndents } from '~/utils/stripIndent';
-import type { Prompts } from './prompts-interface';
-import { getCurrentLLMType } from './llm-selector';
-import { AnthropicPrompts } from './anthropic-prompts';
-import { OpenAIPrompts } from './openai-prompts';
-
-class GenericPrompts implements Prompts {
-  getSystemPrompt(cwd: string = WORK_DIR): string {
-    return `
-    You are an AI assistant. Please help the user with their task.
-    The current working directory is ${cwd}.
-    `;
-  }
-
-  getContinuePrompt(): string {
-    return stripIndents`
-      Continue your prior response. Please begin from where you left off without any interruptions.
-    `;
-  }
-}
-
-export function getPrompts(): Prompts {
-  const llmType = getCurrentLLMType();
-  switch (llmType) {
-    case 'anthropic':
-      return new AnthropicPrompts();
-    case 'openai':
-      return new OpenAIPrompts();
-    default:
-      return new GenericPrompts();
-  }
-}
-
-export function getSystemPrompt(cwd: string = WORK_DIR): string {
-  return getPrompts().getSystemPrompt(cwd);
-}
-
-export function getContinuePrompt(): string {
-  return getPrompts().getContinuePrompt();
-}