'use strict';
const superagent = require('superagent');

module.exports.imageUnderstanding = async (ctx, next) => {
   try {
      const { externalXiaoshangAppKey } = ctx.app.fs.config.fastGpt;
      const { imageUrl, text } = ctx.request.body;
      if (!imageUrl) { throw '缺少请求参数' };
      const res = await superagent
         .post(`${ctx.app.fs.config.fastGpt.apiUrl}/api/v1/chat/completions`)
         .send({
            "stream": false,
            "detail": false,
            "messages": [
               {
                  "role": "user",
                  "content": [
                     {
                        "type": "image_url",
                        "image_url": {
                           "url": imageUrl
                        }
                     },
                     {
                        "type": "text",
                        "text": text || '请对图像进行理解'
                     }
                  ]
               }
            ]
         })
         .set({
            Authorization: `Bearer ${externalXiaoshangAppKey}`,
            "Content-Type": "application/json",
         })
      const contentMd = res.body.choices[0].message.content;
      ctx.body = contentMd;
      ctx.status = 200;
   } catch (error) {
      ctx.logger.log(error);
      ctx.status = 400;
      ctx.body = {
         message: typeof error == 'string' ? error : '图像理解失败'
      };
   }
}