const SUPPORT_CUSTOM_MODELS = ["openai"];

async function getCustomModels(provider = "", apiKey = null) {
  if (!SUPPORT_CUSTOM_MODELS.includes(provider))
    return { models: [], error: "Invalid provider for custom models" };

  switch (provider) {
    case "openai":
      return await openAiModels(apiKey);
    default:
      return { models: [], error: "Invalid provider for custom models" };
  }
}

async function openAiModels(apiKey = null) {
  const { Configuration, OpenAIApi } = require("openai");
  const config = new Configuration({
    apiKey: apiKey || process.env.OPEN_AI_KEY,
  });
  const openai = new OpenAIApi(config);
  const models = (
    await openai
      .listModels()
      .then((res) => res.data.data)
      .catch((e) => {
        console.error(`OpenAI:listModels`, e.message);
        return [];
      })
  ).filter(
    (model) => !model.owned_by.includes("openai") && model.owned_by !== "system"
  );

  return { models, error: null };
}

module.exports = {
  getCustomModels,
};