more codes

src/main/kotlin/com/android/trisolarisserver/component/EmailStorage.kt

@@ -101,6 +101,18 @@ class EmailStorage(
         return path.toString()
     }
 
+    fun storeUploadedPdf(propertyId: UUID, originalName: String?, bytes: ByteArray): String {
+        val dir = Paths.get(rootPath, propertyId.toString(), "manual")
+        Files.createDirectories(dir)
+        val safeName = (originalName ?: UUID.randomUUID().toString()).replace(Regex("[^A-Za-z0-9._-]"), "_")
+        val fileName = "${safeName}_${OffsetDateTime.now().toEpochSecond()}.pdf"
+        val path = dir.resolve(fileName).normalize()
+        val tmp = dir.resolve("${fileName}.tmp").normalize()
+        Files.write(tmp, bytes)
+        atomicMove(tmp, path)
+        return path.toString()
+    }
+
     private fun atomicMove(tmp: Path, target: Path) {
         try {
             Files.move(tmp, target, java.nio.file.StandardCopyOption.ATOMIC_MOVE, java.nio.file.StandardCopyOption.REPLACE_EXISTING)