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

# ==========================================================
# Deploy Forgejo act_runner + KEDA autoscaling to Kubernetes
# ==========================================================

NAMESPACE="forgejo-runners"
SCRIPT_DIR="$(dirname "$0")"

echo "=== Deploying Forgejo Runner with KEDA Autoscaling ==="

RUNNER_TOKEN="RPAjk4Jdc42By5vSxnULPPPrjU0goPLQIiKgwOIo"

# Forgejo API token — create at https://git.juntekim.com/user/settings/applications
# Needs: read:repository scope (to list repos and query action tasks)
if [[ -z "${FORGEJO_API_TOKEN:-}" ]]; then
  read -rsp "Forgejo API token (for metrics exporter): " FORGEJO_API_TOKEN
  echo
fi

# Install KEDA if not already installed
if ! kubectl get crd scaledobjects.keda.sh &>/dev/null; then
  echo "=== Installing KEDA ==="
  helm repo add kedacore https://kedacore.github.io/charts
  helm repo update kedacore
  helm install keda kedacore/keda --namespace keda --create-namespace
  echo "✅ KEDA installed"
else
  echo "✅ KEDA already installed"
fi

kubectl create namespace "$NAMESPACE" --dry-run=client -o yaml | kubectl apply -f -

# Runner registration token (used by act_runner to register with Forgejo)
kubectl create secret generic forgejo-runner-secret \
  --namespace "$NAMESPACE" \
  --from-literal=token="$RUNNER_TOKEN" \
  --dry-run=client -o yaml | kubectl apply -f -

# Forgejo API token (used by metrics exporter to query job queue)
kubectl create secret generic forgejo-api-secret \
  --namespace "$NAMESPACE" \
  --from-literal=token="$FORGEJO_API_TOKEN" \
  --dry-run=client -o yaml | kubectl apply -f -

kubectl apply -f "$SCRIPT_DIR/deployment.yaml"
kubectl apply -f "$SCRIPT_DIR/metrics-exporter.yaml"
kubectl apply -f "$SCRIPT_DIR/keda-scaledobject.yaml"

echo
echo "✅ Forgejo runner deployed with KEDA autoscaling"
echo
echo "Next steps:"
echo "  kubectl get pods -n $NAMESPACE"
echo "  kubectl get scaledobject -n $NAMESPACE"
echo "  kubectl logs -n $NAMESPACE deploy/forgejo-metrics-exporter"
echo "  Check runners at: https://git.juntekim.com/-/admin/runners"