#!/usr/bin/env bash
# =============================================================================
# stop-app.sh — Delete all Kubernetes objects for the Task Manager
#
# Drops Deployments, StatefulSets, Services, Secrets, ConfigMaps, PVCs,
# and the Namespace.  PersistentVolumes (cluster-scoped) and the host-path
# directories are also removed.
#
# ⚠️  WARNING: All task data stored in the PersistentVolumes will be LOST.
#     To pause the app without losing data, scale to 0 manually:
#       kubectl scale deployment --all --replicas=0 -n taskmanager
#       kubectl scale statefulset --all --replicas=0 -n taskmanager
# =============================================================================
set -euo pipefail

NS="taskmanager"

echo "============================================="
echo "  Stopping (dropping) Task Manager..."
echo "============================================="
echo ""

echo "[1/3] Deleting namespace '$NS' and all objects inside it..."
kubectl delete namespace $NS --ignore-not-found=true

echo "[2/3] Deleting cluster-scoped PersistentVolumes..."
kubectl delete pv postgres-pv redis-pv --ignore-not-found=true

echo "[3/3] Removing host-path directories..."
sudo rm -rf /mnt/taskmanager 2>/dev/null || true

echo ""
echo "============================================="
echo "  ✓ All Kubernetes objects removed."
echo "  Run ./prepare-app.sh then ./start-app.sh"
echo "  to redeploy the application."
echo "============================================="