Method save_file_headless

src/modules/rfid/srix_tool.cpp:1055–1114

}

String SRIXTool::save_file_headless(String filename) {
    if (!_dump_valid_from_read && !_dump_valid_from_load) return ""; // No data

    FS *fs;
    if (!getFsStorage(fs)) return "";

    // Create directories if needed
    if (!(*fs).exists("/BruceRFID")) (*fs).mkdir("/BruceRFID");
    if (!(*fs).exists("/BruceRFID/SRIX")) (*fs).mkdir("/BruceRFID/SRIX");

    // Build filepath
    String filepath = "/BruceRFID/SRIX/" + filename;
    if (!filename.endsWith(".srix")) filepath += ".srix";

    // Handle existing file
    if ((*fs).exists(filepath)) {
        int i = 1;
        String base = filepath.substring(0, filepath.length() - 5); // Remove .srix
        while ((*fs).exists(base + "_" + String(i) + ".srix")) i++;
        filepath = base + "_" + String(i) + ".srix";
    }

    // Open file for writing
    File file = (*fs).open(filepath, FILE_WRITE);
    if (!file) return "";

    // Build UID string
    String uid_str = "";
    for (uint8_t i = 0; i < 8; i++) {
        if (_uid[i] < 0x10) uid_str += "0";
        uid_str += String(_uid[i], HEX);
    }
    uid_str.toUpperCase();

    // Write header
    file.println("Filetype: Bruce SRIX Dump");
    file.println("UID: " + uid_str);
    file.println("Blocks: 128");
    file.println("Data size: 512");
    file.println("# Data:");

    // Write blocks in format: [XX] YYYYYYYY
    for (uint8_t block = 0; block < 128; block++) {
        uint16_t offset = block * 4;
        String line = "[";
        if (block < 0x10) line += "0";
        line += String(block, HEX);
        line += "] ";

        for (uint8_t i = 0; i < 4; i++) {
            if (_dump[offset + i] < 0x10) line += "0";
            line += String(_dump[offset + i], HEX);
        }
        line.toUpperCase();
        file.println(line);
    }

    file.close();