#!/bin/bash

# Uninstallation script for VizionStreamer systemd service

set -e

RED='\033[0;31m'
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
NC='\033[0m'

SERVICE_NAME="vizionstreamer.service"
SYSTEMD_DIR="/etc/systemd/system"

echo -e "${YELLOW}=== VizionStreamer Service Uninstallation ===${NC}\n"

# Check if running as root
if [ "$EUID" -ne 0 ]; then
    echo -e "${RED}Error: This script must be run as root (use sudo)${NC}"
    exit 1
fi

# Check if service exists
if [ ! -f "$SYSTEMD_DIR/$SERVICE_NAME" ]; then
    echo -e "${YELLOW}Service not installed.${NC}"
    exit 0
fi

# Stop service
if systemctl is-active --quiet $SERVICE_NAME; then
    echo "Stopping service..."
    systemctl stop $SERVICE_NAME
fi

# Disable service
if systemctl is-enabled --quiet $SERVICE_NAME; then
    echo "Disabling service..."
    systemctl disable $SERVICE_NAME
fi

# Remove service file
echo "Removing service file..."
rm -f "$SYSTEMD_DIR/$SERVICE_NAME"

# Reload systemd
echo "Reloading systemd daemon..."
systemctl daemon-reload

# Reset failed state if any
systemctl reset-failed $SERVICE_NAME 2>/dev/null || true

echo -e "\n${GREEN}Uninstallation complete!${NC}"
echo "Service '$SERVICE_NAME' has been removed."