#!/bin/bash
#----------------------------------------
# MySQL Backup Script
#----------------------------------------

# 🔧 Configuration
HOST='localhost'      # MySQL server host
USER='root'       # Username
PASSWORD='salam'   # Password
DB='nutzwerte_fi4'
DAYS_TO_KEEP=60              # Delete backups older than X days
GZIP=0                      # 1 = gzip compression, 0 = plain .sql
BACKUP_PATH='/var/www/html/nutzwerte_fi4/storage/backup_database/archive'   # Location to store backups
#TIMESTAMP=$(date +"%d_%m_%Y_%H_%M_%S")   # Date-time for unique file names
TIMESTAMP=$(date -d "yesterday" +"%d_%m_%Y") #Date-time for previous date file names. reminder here crontab use after 12 am

#----------------------------------------

# Create the backup folder
if [ ! -d $BACKUP_PATH ]; then
  mkdir -p $BACKUP_PATH
fi


  # Backup (with or without compression)
  if [ "$GZIP" -eq 0 ]; then
    echo "Backing up database: $DB (no compression)"
    mysqldump -h "$HOST" -u "$USER" -p"$PASSWORD" --databases "$DB" --single-transaction --quick --extended-insert --compact --hex-blob --max-allowed-packet=256M --net-buffer-length=2M > "$BACKUP_PATH/${DB}-${TIMESTAMP}.sql"
  else
    echo "Backing up database: $DB (with compression)"
    mysqldump -h "$HOST" -u "$USER" -p"$PASSWORD" --databases "$DB" --single-transaction --quick --extended-insert --compact --hex-blob --max-allowed-packet=256M --net-buffer-length=2M | gzip -9 -c > "$BACKUP_PATH/${DB}-${TIMESTAMP}.sql.gz"
  fi


# Delete old backups
if [ "$DAYS_TO_KEEP" -gt 0 ] ; then
  echo "Deleting backups older than $DAYS_TO_KEEP days"
  find $BACKUP_PATH/* -mtime +$DAYS_TO_KEEP -exec rm {} \;
fi