#!/usr/bin/env bash
# Reverse of runmefirst.sh — tears down DCOS deployment but preserves PVCs (data survives)
# Usage: runmelast.sh

set -uo pipefail

NAMESPACE="dcos-service"

echo "=== DCOS Teardown ==="

# --- 1. Delete all deployments and statefulsets ---
echo "[1/4] Deleting deployments..."
kubectl delete deployment dcos -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true
kubectl delete statefulset --all -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true

# --- 2. Delete services and ingresses ---
echo "[2/4] Cleaning up services..."
kubectl delete service dcos -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true
kubectl delete ingress --all -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true

# --- 3. Delete secrets and configmaps ---
echo "[3/4] Cleaning up secrets..."
kubectl delete secret dcos-db-secret -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true
kubectl delete configmap --all -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true

# --- 4. Delete PVCs (data preserved for redeploy) ---
echo "[4/4] Cleaning up PVCs..."
kubectl delete pvc --all -n "$NAMESPACE" --ignore-not-found=true 2>/dev/null || true

# NOTE: namespace is kept intact so Helm labels persist for clean redeploy
echo ""
echo "=== Teardown complete ==="
echo ""
echo "Preserved (untouched):"
echo "  - Namespace $NAMESPACE (kept for Helm label compatibility)"
echo "  - PostgreSQL database 'dcos' and user 'celes' in postgresql-service"
echo "  - Redis data in redis-service"
echo ""
echo "To redeploy: bash ~/sources/kube/dcos/runmefirst.sh"