#!/bin/bash
# restore.sh — восстановление из бэкапа
# Использование: docker compose run --rm backup /opt/restore.sh [дата]
set -euo pipefail

BACKUP_DATE="${1:-latest}"
BACKUP_DIR="/backups/$BACKUP_DATE"

if [ ! -d "$BACKUP_DIR" ]; then
  echo "Ошибка: бэкап $BACKUP_DIR не найден"
  echo "Доступные бэкапы:"
  ls -d /backups/2* 2>/dev/null || echo "  (нет бэкапов)"
  exit 1
fi

echo "=== Restore from $BACKUP_DIR ==="

# Восстановить БД
if [ -d "$BACKUP_DIR/db" ]; then
  for dump in "$BACKUP_DIR/db"/*.dump; do
    [ -f "$dump" ] || continue
    db=$(basename "$dump" | sed 's/-.*//')
    echo "→ Restoring database: $db"
    PGPASSWORD="$DB_PASSWORD" pg_restore -h "$DB_HOST" -p "${DB_PORT:-5432}" \
      -U "$DB_USER" -d "$db" --clean --if-exists "$dump" || \
      echo "  ⚠ Restore of $db had warnings (non-fatal)"
  done
fi

# Распаковать файлы
if [ -d "$BACKUP_DIR/files" ]; then
  for archive in "$BACKUP_DIR/files"/*.tar.gz; do
    [ -f "$archive" ] || continue
    name=$(basename "$archive" | sed 's/-.*//')
    target="/data/$name"
    echo "→ Extracting $name to $target"
    mkdir -p "$target"
    tar -xzf "$archive" -C "$target" || true
  done
fi

echo "=== Restore completed ==="
echo "При необходимости перезапусти сервисы: docker compose restart"