#!/bin/bash
# Installation script for backup system

set -e

SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"

echo "=========================================="
echo "Installing Backup System"
echo "=========================================="
echo ""

# Install backup scripts
echo "Installing backup scripts to /usr/local/bin/..."
sudo cp "$SCRIPT_DIR/backup-setup" /usr/local/bin/
sudo cp "$SCRIPT_DIR/backup-full" /usr/local/bin/
sudo cp "$SCRIPT_DIR/backup-home" /usr/local/bin/
sudo cp "$SCRIPT_DIR/backup-incremental" /usr/local/bin/
sudo cp "$SCRIPT_DIR/backup-configs" /usr/local/bin/

# Make executable
sudo chmod +x /usr/local/bin/backup-setup
sudo chmod +x /usr/local/bin/backup-full
sudo chmod +x /usr/local/bin/backup-home
sudo chmod +x /usr/local/bin/backup-incremental
sudo chmod +x /usr/local/bin/backup-configs

echo "✓ Scripts installed"
echo ""

# Create directories
echo "Creating directories..."
sudo mkdir -p /usr/local/share/backup-setup
sudo mkdir -p /var/lib/backup
sudo touch /var/log/backup.log
sudo chmod 644 /var/log/backup.log

echo "✓ Directories created"
echo ""

# Copy example config
echo "Copying example configuration..."
sudo cp "$SCRIPT_DIR/backup.conf.example" /usr/local/share/backup-setup/

if [ ! -f /etc/backup.conf ]; then
  sudo cp "$SCRIPT_DIR/backup.conf.example" /etc/backup.conf
  echo "✓ Configuration file created at /etc/backup.conf"
  echo ""
  echo "⚠  IMPORTANT: Edit /etc/backup.conf with your NAS details:"
  echo "   sudo nvim /etc/backup.conf"
else
  echo "✓ Configuration file already exists at /etc/backup.conf"
fi

echo ""
echo "=========================================="
echo "Installation Complete!"
echo "=========================================="
echo ""
echo "Next steps:"
echo "  1. Configure NAS connection:"
echo "     sudo nvim /etc/backup.conf"
echo ""
echo "  2. Set up SSH key authentication:"
echo "     ssh-keygen -t ed25519 -C \"backup@gentoo-workstation\""
echo "     ssh-copy-id -p PORT user@nas-host"
echo ""
echo "  3. Test connection:"
echo "     backup-setup test"
echo ""
echo "  4. Run test backup:"
echo "     backup-setup backup configs"
echo ""
echo "  5. Check status:"
echo "     backup-setup status"
echo ""