#!/usr/bin/env sh
set -eu

BACKUP_DIR="${BACKUP_DIR:-./backups/$(date +%Y%m%d-%H%M%S)}"
MYSQL_CONTAINER="${MYSQL_CONTAINER:-clover-mysql-1}"
MONGO_CONTAINER="${MONGO_CONTAINER:-clover-mongo-1}"
UPLOADS_DIR="${UPLOADS_DIR:-/app/uploads}"

mkdir -p "$BACKUP_DIR"

if [ -z "${MYSQL_USER:-}" ] || [ -z "${MYSQL_PASSWORD:-}" ] || [ -z "${MYSQL_DB:-}" ]; then
  echo "MYSQL_USER/MYSQL_PASSWORD/MYSQL_DB must be set" >&2
  exit 1
fi

echo "[1/3] dump mysql -> $BACKUP_DIR/mysql.sql.gz"
docker exec "$MYSQL_CONTAINER" sh -c "mysqldump -u$MYSQL_USER -p$MYSQL_PASSWORD $MYSQL_DB" | gzip > "$BACKUP_DIR/mysql.sql.gz"
gzip -t "$BACKUP_DIR/mysql.sql.gz"

echo "[2/3] dump mongo -> $BACKUP_DIR/mongo.archive.gz"
docker exec "$MONGO_CONTAINER" sh -c "mongodump --archive --gzip --db clover_trace" > "$BACKUP_DIR/mongo.archive.gz"
gzip -t "$BACKUP_DIR/mongo.archive.gz" || true

echo "[3/3] archive uploads -> $BACKUP_DIR/uploads.tgz"
tar -czf "$BACKUP_DIR/uploads.tgz" "$UPLOADS_DIR"

echo "backup completed: $BACKUP_DIR"