#!/bin/sh
set -e

DATE=$(date +"%Y-%m-%d_%H-%M")
BACKUP_DIR="/backups"
BACKUP_NAME="${DATE}.tar.gz"

mkdir -p "$BACKUP_DIR"

echo "[$(date)] Starting backup..."

echo "Dumping database..."
mariadb-dump --no-tablespaces \
  -h db \
  -u"$MYSQL_USER" \
  -p"$MYSQL_PASSWORD" \
  "$MYSQL_DATABASE" > "/tmp/db_dump_${DATE}.sql"

echo "Creating tar.gz archive..."
tar -czf "${BACKUP_DIR}/${BACKUP_NAME}" \
  -C /source/wp . \
  -C /tmp "db_dump_${DATE}.sql"

rm -f "/tmp/db_dump_${DATE}.sql"

echo "Cleaning up backups older than ${BACKUP_RETENTION_DAYS:-7} days..."
find "$BACKUP_DIR" -name "*.tar.gz" -type f -mtime +${BACKUP_RETENTION_DAYS:-7} -delete

echo "[$(date)] Backup complete: ${BACKUP_DIR}/${BACKUP_NAME}"