Extended --stats to also show the different source_types from the database.

src/main/kotlin/de/fabianonline/telegram_backup/CommandLineController.kt

@@ -231,6 +231,11 @@ class CommandLineController {
 		for ((key, value) in Database.getInstance().getMessageApiLayerWithCount()) {
 			System.out.format(format, key, value)
 		}
+		println()
+		println("Message source types:")
+		for ((key, value) in Database.getInstance().getMessageSourceTypeWithCount()) {
+			System.out.format(format, key, value)
+		}
 	}
 
 	@Throws(RpcErrorException::class, IOException::class)

src/main/kotlin/de/fabianonline/telegram_backup/Database.kt

@@ -125,6 +125,21 @@ class Database private constructor(var client: TelegramClient) {
 	fun getMessageTypesWithCount(): HashMap<String, Int> = getMessageTypesWithCount(GlobalChat())
 
 	fun getMessageMediaTypesWithCount(): HashMap<String, Int> = getMessageMediaTypesWithCount(GlobalChat())
+	
+	fun getMessageSourceTypeWithCount(): HashMap<String, Int> {
+		val map = HashMap<String, Int>()
+		try {
+			val rs = stmt!!.executeQuery("SELECT COUNT(id), source_type FROM messages GROUP BY source_type ORDER BY source_type")
+			while (rs.next()) {
+				val source_type = rs.getString(2) ?: "null"
+				map.put("count.messages.source_type.${source_type}", rs.getInt(1))
+			}
+			rs.close()
+			return map
+		} catch (e:Exception) {
+			throw RuntimeException(e)
+		}
+	}
 
 	fun getMessageApiLayerWithCount(): HashMap<String, Int> {
 		val map = HashMap<String, Int>()