refactor: repartition server-side and client-side code

app/.server/modules/llm/providers/openai.ts

@@ -0,0 +1,64 @@
+import { createOpenAI } from '@ai-sdk/openai';
+import { createOpenAICompatible } from '@ai-sdk/openai-compatible';
+import type { LanguageModel } from 'ai';
+import { BaseProvider } from '~/.server/modules/llm/base-provider';
+import type { ModelInfo } from '~/.server/modules/llm/types';
+import type { IProviderSetting } from '~/types/model';
+
+export default class OpenAILikeProvider extends BaseProvider {
+  name = 'OpenAI';
+  getApiKeyLink = undefined;
+
+  staticModels: ModelInfo[] = [];
+
+  async getDynamicModels(settings?: IProviderSetting): Promise<ModelInfo[]> {
+    const { baseUrl, apiKey } = this.getProviderBaseUrlAndKey(settings);
+
+    if (!baseUrl || !apiKey) {
+      return [];
+    }
+
+    const response = await fetch(`${baseUrl}/models`, {
+      headers: {
+        Authorization: `Bearer ${apiKey}`,
+      },
+    });
+
+    const res = (await response.json()) as any;
+
+    return res.data.map((model: any) => ({
+      name: model.id,
+      label: model.id,
+      provider: this.name,
+      maxTokenAllowed: 8000,
+    }));
+  }
+
+  getModelInstance(options: { model: string; providerSettings?: Record<string, IProviderSetting> }): LanguageModel {
+    const { model, providerSettings } = options;
+
+    const { baseUrl, apiKey } = this.getProviderBaseUrlAndKey(providerSettings?.[this.name]);
+
+    if (!apiKey) {
+      throw new Error(`Missing configuration for ${this.name} provider`);
+    }
+
+    if (!!baseUrl) {
+      const provider = createOpenAICompatible({
+        name: this.name,
+        baseURL: baseUrl,
+        apiKey,
+        includeUsage: true,
+      });
+
+      return provider(model);
+    }
+
+    const openai = createOpenAI({
+      baseURL: baseUrl,
+      apiKey,
+    });
+
+    return openai(model);
+  }
+}