feat(upload): compress images over 10MB before OSS upload (v3.4.13)

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/mini-user/src/lib/compress-image.ts

@@ -0,0 +1,34 @@
+import Taro from '@tarojs/taro';
+
+const MAX_BYTES = 10 * 1024 * 1024;
+
+/** 小程序临时文件超过 10MB 时用 compressImage 压缩后再上传 */
+export async function compressWeappImageIfNeeded(tempFilePath: string): Promise<string> {
+  if (process.env.TARO_ENV !== 'weapp') return tempFilePath;
+
+  let path = tempFilePath;
+  let size = await getFileSize(path);
+  if (size <= MAX_BYTES) return path;
+
+  const qualities = [80, 65, 50, 40];
+  for (const quality of qualities) {
+    const res = await Taro.compressImage({ src: path, quality });
+    path = res.tempFilePath;
+    size = await getFileSize(path);
+    if (size <= MAX_BYTES) return path;
+  }
+
+  if (size > MAX_BYTES) {
+    throw new Error('图片压缩后仍超过 10MB，请换一张较小的图片');
+  }
+  return path;
+}
+
+async function getFileSize(filePath: string): Promise<number> {
+  try {
+    const info = await Taro.getFileInfo({ filePath });
+    return typeof info.size === 'number' ? info.size : 0;
+  } catch {
+    return 0;
+  }
+}