some small updates

src/client_backend/update.cpp

@@ -0,0 +1,58 @@
+#ifndef UPDATE_CPP
+#define UPDATE_CPP
+#include "update.h"
+#include "log.h"
+#include "connect.h"
+#include "settings.h"
+
+
+int update_db(const std::string& folder_path) {
+	//download the databases from the server
+	for (char firstChar = '0'; firstChar <= 'f'; ++firstChar) {
+		for (char secondChar = '0'; secondChar <= 'f'; ++secondChar) {
+			// Ensure that the characters are valid hexadecimal digits
+			if (!std::isxdigit(firstChar) || !std::isxdigit(secondChar) or std::isupper(firstChar) or std::isupper(secondChar)) {
+				continue;
+			}
+
+			// Create the filename based on the naming convention
+			std::string file_path = folder_path + "\\" + firstChar + secondChar + ".jdbf";
+			std::string file_name = firstChar + secondChar + ".jdbf";
+			//create the strings to download the files
+			char*url=new char[300];
+			char*output_path=new char[300];
+			get_setting("server:server_url", url);
+			strcat_s(url, 295,"/database/");
+			strcat_s(url, 295,file_name.c_str() );
+			strcpy_s(output_path, 295, file_path.c_str());
+
+			int res = download_file_from_srv(url, output_path);
+			if (res != 0) {
+				log(LOGLEVEL::ERR, "[update_db()]: Error downloading database file from server", url);
+				return 1;
+			}
+
+
+			delete[] url;
+			delete[] output_path;
+
+		}
+	}
+	return 0;
+}
+int update_settings(const std::string& folder_path) {
+	//create the strings to download the files
+	char* url = new char[300];
+	get_setting("server:server_url", url);
+	strcat_s(url, 295, "/database/");
+	strcat_s(url, 295, "settings_db.txt");
+	int res = download_file_from_srv(url, SETTINGS_DB);
+	if (res != 0) {
+		log(LOGLEVEL::ERR, "[update_db()]: Error downloading settings database file from server", url);
+		return 1;
+	}
+
+	delete[] url;
+	return 0;
+}
+#endif