#!/usr/bin/env bash
# Server Cleanup Script (Podman + System)

set -euo pipefail

PODMAN_USER="user"
source /srv/podman/.env
source /srv/logging.sh

if [ "$EUID" -ne 0 ]; then
  echo "Error: This script must be run as root."
  exit 1
fi

get_free_space() {
    df / --output=avail | tail -1
}
PRE_CLEAN=$(get_free_space)

echo "--- Starting server cleanup ---"

# 1. APT cleanup
if command -v apt-get >/dev/null 2>&1; then
    echo "[APT] Cleaning package cache..."
    apt-get update >/dev/null
    apt-get autoclean -y >/dev/null
    apt-get clean
fi

# 2. Podman cleanup
if command -v podman >/dev/null 2>&1; then
    echo "[PODMAN] Cleaning unused resources..."
    sudo -iu $PODMAN_USER podman system prune -a -f > /dev/null
    sudo -iu $PODMAN_USER podman volume prune -f > /dev/null
fi

# 3. System logs
echo "[LOGS] Vacuum logs older than 15 days..."
journalctl --vacuum-time=15d >/dev/null

# 4. Temp files
echo "[TEMP] Cleaning temp files older than 15 days..."
find /tmp -mindepth 1 -mtime +15 -delete 2>/dev/null || true
find /var/tmp -mindepth 1 -mtime +15 -delete 2>/dev/null || true

echo "--- Cleanup finished ---"

POST_CLEAN=$(get_free_space)
RECLAIMED_KB=$((POST_CLEAN - PRE_CLEAN))

if [ "$RECLAIMED_KB" -le 0 ]; then
    echo "No significant space reclaimed."
else
    RECLAIMED_HUMAN=$(numfmt --to=iec --suffix=B "$((RECLAIMED_KB * 1024))")
    echo "Space reclaimed: $RECLAIMED_HUMAN"
fi

curl -m 10 --retry 5 ${HC_URL}/cleanup