#!/bin/bash
set -euo pipefail

# Get the server's hostname and derive the client name
HOSTNAME=$(hostname)
CLIENT_NAME=${HOSTNAME%.[MYCOMPANYDOMAIN]}

# Define the base S3 bucket path
S3_BUCKET="s3://[MYBUCKETNAME]"
PREFIX="$S3_BUCKET/ServerBackups/$CLIENT_NAME/"

# Sync PBX backup files (quiet, recursive)
s3cmd sync --recursive --quiet /var/lib/vitalpbx/backup/* "$PREFIX"

# Delete remote files older than 7 days (top-level only)
echo "Checking for files older than 7 days in $PREFIX ..."
LATEST_FILE=$(s3cmd ls "$PREFIX" | sort -k1,2 | tail -n 1 | awk '{print $4}')

s3cmd ls "$PREFIX" | while IFS= read -r line; do
  # Only process broadband file lines
  [[ "$line" =~ ^20[0-9]{2}-[0-9]{2}-[0-9]{2}\  ]] || continue

  CREATE_DATE=$(echo "$line" | awk '{print $1" "$2}')
  FILE=$(echo "$line" | awk '{print $4}')

  # Skip deletion if this is the most recent file
  if [[ "$FILE" == "$LATEST_FILE" ]]; then
    continue
  fi

  CREATE_TS=$(date -d "$CREATE_DATE" +%s)
  NOW_TS=$(date +%s)
  AGE=$(( (NOW_TS - CREATE_TS) / 86400 ))

  if (( AGE > 7 )); then
    s3cmd del --force --quiet "$FILE"
  fi
done