Extended PathedFile to get it as file/stream

TelegramBotAPI-extensions-utils/src/jvmMain/kotlin/com/github/insanusmokrassar/TelegramBotAPI/types/files/PathedFile.kt

@@ -0,0 +1,28 @@
+package com.github.insanusmokrassar.TelegramBotAPI.types.files
+
+import com.github.insanusmokrassar.TelegramBotAPI.utils.TelegramAPIUrlsKeeper
+import java.io.File
+import java.io.FileOutputStream
+import java.io.InputStream
+import java.net.URL
+
+fun PathedFile.asStream(
+        telegramAPIUrlsKeeper: TelegramAPIUrlsKeeper
+): InputStream = URL(this.fullUrl(telegramAPIUrlsKeeper)).openStream()
+
+fun PathedFile.asFile(
+        telegramAPIUrlsKeeper: TelegramAPIUrlsKeeper,
+        dest: File = File.createTempFile(this.fileUniqueId, this.filename),
+        defaultBufferSize: Int = 1024,
+        buffer: ByteArray = ByteArray(defaultBufferSize)
+): File {
+    this.asStream(telegramAPIUrlsKeeper).use { input ->
+        FileOutputStream(dest).use { out ->
+            var read: Int
+            while (input.read(buffer, 0, defaultBufferSize).also { read = it } >= 0) {
+                out.write(buffer, 0, read)
+            }
+        }
+    }
+    return dest
+}