#!/bin/bash
set -euo pipefail

# ==============================
# Конфигурация через переменные
# ==============================
TARGET_DIR="${TARGET_DIR:-/opt/appdata/pihole/etc/dnsmasq.d}"
IPSET_CONF="${IPSET_CONF:-91-ipset-bbrkn.conf}"
RESOLVE_CONF="${RESOLVE_CONF:-92-resolve-bbrkn.conf}"

DOCKER_CONTAINER="${DOCKER_CONTAINER:-pihole}"

echo "Deploying configuration files to $TARGET_DIR"

# Бэкап существующих файлов
if [ -f "$TARGET_DIR/$IPSET_CONF" ]; then
    cp "$TARGET_DIR/$IPSET_CONF" "$TARGET_DIR/$IPSET_CONF.backup.$(date +%Y%m%d-%H%M%S)"
fi
if [ -f "$TARGET_DIR/$RESOLVE_CONF" ]; then
    cp "$TARGET_DIR/$RESOLVE_CONF" "$TARGET_DIR/$RESOLVE_CONF.backup.$(date +%Y%m%d-%H%M%S)"
fi

# Копирование новых файлов
cp "/tmp/$IPSET_CONF" "$TARGET_DIR/$IPSET_CONF"
cp "/tmp/$RESOLVE_CONF" "$TARGET_DIR/$RESOLVE_CONF"

# Перезапуск контейнера
echo "Restarting $DOCKER_CONTAINER container..."
docker restart "$DOCKER_CONTAINER"

sleep 5
if ! docker ps | grep -q "$DOCKER_CONTAINER"; then
    echo "Error: $DOCKER_CONTAINER container failed to start"
    exit 1
fi

echo "Deployment completed successfully"
DOMAIN_COUNT=$(grep -c '^ipset=' "$TARGET_DIR/$IPSET_CONF" || echo "0")
echo "Applied configuration for $DOMAIN_COUNT domains"