// COS配置 - 香港区域
const COS = require('cos-nodejs-sdk-v5');

const cosConfig = {
  SecretId: process.env.TENCENT_SECRET_ID || '',
  SecretKey: process.env.TENCENT_SECRET_KEY || '',
  Bucket: 'qingyuan-erp-files-1257307187',
  Region: 'ap-hongkong'
};

const cos = new COS(cosConfig);
const imageFormats = ['jpg', 'jpeg', 'png', 'gif', 'webp', 'bmp', 'svg'];

// 上传到COS
function uploadToCOS(buffer, filename, mimetype) {
  return new Promise((resolve, reject) => {
    cos.putObject({
      Bucket: cosConfig.Bucket,
      Region: cosConfig.Region,
      Key: filename,
      Body: buffer,
      ContentType: mimetype
    }, (err, data) => {
      if (err) reject(err);
      else {
        const url = 'https://' + cosConfig.Bucket + '.cos.' + cosConfig.Region + '.myqcloud.com/' + filename;
        resolve({ url, filename });
      }
    });
  });
}

module.exports = { cos, cosConfig, uploadToCOS, imageFormats };