add uninstall script

uninstall.sh

@@ -0,0 +1,58 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: MIT
+# Viet+ — Vietnamese Input Method Uninstaller
+set -euo pipefail
+
+# Color codes for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m' # No Color
+
+echo -e "${RED}=== Viet+ Uninstallation Script ===${NC}"
+
+if [ "$EUID" -ne 0 ]; then
+    echo -e "${RED}Error: This script must be run as root (or with sudo).${NC}"
+    exit 1
+fi
+
+echo "Stopping any running Viet+ processes..."
+pkill -x vietc-tray 2>/dev/null || true
+pkill -x vietc-daemon 2>/dev/null || true
+pkill -x vietc-uinputd 2>/dev/null || true
+pkill -x vietc 2>/dev/null || true
+
+echo "Removing binaries..."
+rm -f /usr/bin/vietc-daemon /usr/bin/vietc-cli /usr/bin/vietc-uinputd /usr/bin/vietc-tray /usr/bin/vietc-xrecord
+rm -f /usr/local/bin/vietc-daemon /usr/local/bin/vietc-cli /usr/local/bin/vietc-uinputd /usr/local/bin/vietc-tray /usr/local/bin/vietc-xrecord /usr/local/bin/vietc
+
+echo "Removing icons..."
+rm -f /usr/share/icons/hicolor/256x256/apps/vietc.svg
+rm -f /usr/share/icons/hicolor/256x256/apps/vietc-vn.svg
+rm -f /usr/share/icons/hicolor/256x256/apps/vietc-en.svg
+
+if command -v gtk-update-icon-cache >/dev/null 2>&1; then
+    gtk-update-icon-cache -f /usr/share/icons/hicolor/ >/dev/null 2>&1 || true
+fi
+
+echo "Removing desktop files and autostart..."
+rm -f /usr/share/applications/vietc.desktop
+rm -f /etc/xdg/autostart/vietc-tray.desktop
+
+echo "Removing systemd service..."
+rm -f /usr/lib/systemd/user/vietc.service
+
+echo "Removing udev rules..."
+rm -f /etc/udev/rules.d/99-vietc.rules
+if command -v udevadm >/dev/null 2>&1; then
+    udevadm control --reload-rules >/dev/null 2>&1 || true
+    udevadm trigger --subsystem-match=misc >/dev/null 2>&1 || true
+fi
+
+echo "Removing global configuration..."
+rm -rf /etc/vietc
+
+if command -v systemctl >/dev/null 2>&1; then
+    systemctl --global daemon-reload >/dev/null 2>&1 || true
+fi
+
+echo -e "\n${GREEN}=== Uninstallation Completed Successfully! ===${NC}"