#!/usr/bin/env bash
# Pull current router config into config/ and commit if there are changes.
set -euo pipefail

ROUTER="${ROUTER:-openwrt}"
CONFIGS=(dhcp dropbear firewall network system wireless)
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
CONFIG_DIR="$SCRIPT_DIR/../config"

echo "Pulling config from $ROUTER..."
for f in "${CONFIGS[@]}"; do
  ssh "$ROUTER" "cat /etc/config/$f" > "$CONFIG_DIR/$f"
  echo "  $f"
done

cd "$SCRIPT_DIR/.."
if git diff --quiet && git diff --cached --quiet; then
  echo "No changes — config is up to date."
else
  echo ""
  git diff --stat config/
  echo ""
  read -rp "Commit these changes? [y/N] " answer
  if [[ "${answer,,}" == "y" ]]; then
    git add config/
    git commit -m "backup: pull config from router $(date '+%Y-%m-%d %H:%M')"
    echo "Committed."
  fi
fi