#!/usr/bin/env bash
set -euo pipefail

PASS=0
FAIL=0

ok()   { echo "[OK]   $*"; ((PASS++)) || true; }
fail() { echo "[FAIL] $*"; ((FAIL++)) || true; }

# ── Node Ready ───────────────────────────────────────────────────────────────
if kubectl get nodes 2>/dev/null | grep -q " Ready"; then
  ok "Node(s) in Ready state"
else
  fail "No nodes in Ready state"
fi

# ── Helm ─────────────────────────────────────────────────────────────────────
if helm version --short &>/dev/null; then
  ok "helm version: $(helm version --short)"
else
  fail "helm not available or erroring"
fi

# ── CoreDNS ──────────────────────────────────────────────────────────────────
if kubectl get pods -n kube-system -l k8s-app=kube-dns 2>/dev/null | grep -q "Running"; then
  ok "CoreDNS pod running in kube-system"
else
  fail "CoreDNS pod not running in kube-system"
fi

# ── Traefik ──────────────────────────────────────────────────────────────────
if kubectl get pods -n kube-system -l app.kubernetes.io/name=traefik 2>/dev/null | grep -q "Running"; then
  ok "Traefik ingress controller running in kube-system"
else
  fail "Traefik ingress controller not running in kube-system"
fi

# ── Summary ──────────────────────────────────────────────────────────────────
echo ""
echo "Results: ${PASS} passed, ${FAIL} failed"
[[ "$FAIL" -eq 0 ]]