#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
ROOT="$(dirname "$SCRIPT_DIR")"
COMPOSE="$ROOT/compose/docker-compose.yml"
ENV="$ROOT/.env"

if [ -z "${1:-}" ]; then
  echo "Verwendung: $0 <backup-verzeichnis>"
  echo "Verfügbare Backups:"
  ls -lht "$ROOT/backups/"
  exit 1
fi

BACKUP="$1"
if [ ! -d "$BACKUP" ]; then
  echo "Fehler: Verzeichnis '$BACKUP' nicht gefunden."
  exit 1
fi

# shellcheck source=/dev/null
source "$ENV"

echo "[restore] Stelle wieder her aus: $BACKUP"
echo "[restore] Stack wird gestoppt..."
docker compose -f "$COMPOSE" down

# n8n data
echo "[restore] n8n Daten..."
rm -rf "$ROOT/data/n8n"
mkdir -p "$ROOT/data/n8n"
tar -xzf "$BACKUP/n8n-data.tar.gz" -C "$ROOT/data"

# Postgres
echo "[restore] Datenbank wird gestartet..."
docker compose -f "$COMPOSE" up -d postgres
echo "[restore] Warte auf PostgreSQL..."
sleep 10

echo "[restore] Datenbank-Restore..."
docker compose -f "$COMPOSE" exec -T postgres \
  psql -U "$POSTGRES_USER" -d "$POSTGRES_DB" \
  < "$BACKUP/postgres.sql"

echo "[restore] Stack wird neu gestartet..."
docker compose -f "$COMPOSE" up -d

echo "[restore] Fertig. Stack-Status:"
docker compose -f "$COMPOSE" ps