#!/bin/bash
set -euo pipefail

# runmelast.sh — Pipeline infrastructure teardown
# Removes: Kargo → ArgoCD → Woodpecker (reverse install order)
# Preserves: NFS PVs, NFS data, git-server namespace (Gitea + registry),
#            stonks-oracle namespace, stonks-beta, stonks-paper

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
cd "$SCRIPT_DIR"

echo "=== Pipeline Infrastructure Teardown ==="
echo ""
echo "This will remove Kargo, ArgoCD, and Woodpecker CI."
echo "Preserved: NFS PVs, NFS data, git-server (Gitea + registry), application namespaces."
echo ""

# -------------------------------------------------------
# 1. Remove Kargo resources + Helm release
# -------------------------------------------------------
echo "--- Step 1: Removing Kargo ---"
kubectl delete -f kargo/stages/live.yaml --ignore-not-found || true
kubectl delete -f kargo/stages/paper.yaml --ignore-not-found || true
kubectl delete -f kargo/stages/beta.yaml --ignore-not-found || true
kubectl delete -f kargo/market-hours-check.yaml --ignore-not-found || true
kubectl delete -f kargo/warehouse.yaml --ignore-not-found || true
kubectl delete -f kargo/project-config.yaml --ignore-not-found || true
kubectl delete -f kargo/project.yaml --ignore-not-found || true
helm uninstall kargo --namespace kargo || true
echo "  ✓ Kargo removed"
echo ""

# -------------------------------------------------------
# 2. Remove ArgoCD resources + Helm release
# -------------------------------------------------------
echo "--- Step 2: Removing ArgoCD ---"
kubectl delete -f argocd/apps/stonks-live.yaml --ignore-not-found || true
kubectl delete -f argocd/apps/stonks-paper.yaml --ignore-not-found || true
kubectl delete -f argocd/apps/stonks-beta.yaml --ignore-not-found || true
kubectl delete -f argocd/repo-secret.yaml --ignore-not-found || true
helm uninstall argocd --namespace argocd || true
echo "  ✓ ArgoCD removed"
echo ""

# -------------------------------------------------------
# 3. Remove Woodpecker CI
# -------------------------------------------------------
echo "--- Step 3: Removing Woodpecker CI ---"
kubectl delete -f woodpecker/agent-rbac.yaml --ignore-not-found || true
helm uninstall woodpecker --namespace woodpecker || true
echo "  ✓ Woodpecker CI removed"
echo ""

# -------------------------------------------------------
# 4. Delete namespaces (pipeline infra only)
# -------------------------------------------------------
echo "--- Step 4: Deleting pipeline namespaces ---"
for ns in woodpecker argocd kargo; do
  kubectl delete namespace "$ns" --ignore-not-found || true
  echo "  ✓ namespace/$ns deleted"
done
echo ""

# NOTE: The following are intentionally NOT deleted:
# - NFS PersistentVolumes (pipeline-argocd-pv, pipeline-kargo-pv, pipeline-woodpecker-pv)
# - NFS data at nfs://192.168.42.8:/volume1/Kubernetes/pipelines/
# - git-server namespace (Gitea + local registry)
# - stonks-oracle namespace (production workloads)
# - stonks-beta namespace (beta workloads)
# - stonks-paper namespace (paper trading workloads)

echo "=== Pipeline Infrastructure Teardown Complete ==="
echo ""
echo "Preserved:"
echo "  - NFS PVs and data (survives cluster rebuild)"
echo "  - git-server namespace (Gitea + registry)"
echo "  - Application namespaces (stonks-oracle, stonks-beta, stonks-paper)"