#!/bin/bash

# Set the script to exit immediately if any command fails
set -e

# Function to log messages
log() {
    echo "$(date +'%Y-%m-%d %H:%M:%S') - $1"
}

DATE=$(date +%Y%m%d%H%M)
BACKUP_DIR=/backup
BACKUP_FILE=vaultwarden-snapshot-$DATE.tar.gz
CONTAINER=${VAULTWARDEN_CONTAINER_NAME}
CONTAINER_DATA_DIR=/data

# Create backups directory if it does not exist
mkdir -p $BACKUP_DIR
log "Backup directory created at $BACKUP_DIR"

# Stop the container
log "Stopping container $CONTAINER"
if /usr/bin/docker stop $CONTAINER; then
    log "Container $CONTAINER stopped successfully"
else
    log "Failed to stop container $CONTAINER"
    exit 1
fi

# Backup the vaultwarden data directory to the backup directory
log "Backing up data from $CONTAINER_DATA_DIR to $BACKUP_DIR/$BACKUP_FILE"
if tar -czf "$BACKUP_DIR/$BACKUP_FILE" "$CONTAINER_DATA_DIR"; then
    log "Backup created successfully: $BACKUP_FILE"
else
    log "Backup failed"
    exit 1
fi

# Restart the container
log "Restarting container $CONTAINER"
if /usr/bin/docker restart $CONTAINER; then
    log "Container $CONTAINER restarted successfully"
else
    log "Failed to restart container $CONTAINER"
    exit 1
fi

# To delete files older than 30 days
log "Deleting backup files older than 30 days"
find $BACKUP_DIR/* -mtime +30 -exec rm {} \; -print | while read -r file; do
    log "Deleted old backup file: $file"
done