apiVersion: tekton.dev/v1beta1
kind: Task
metadata:
  name: manage-preview
  namespace: tekton-pipelines
spec:
  params:
    - name: app-name
    - name: pr-number
    - name: action # "apply" or "delete"
    - name: image-tag
      default: "latest"
  workspaces:
    - name: source # Workspace containing the app's code (to find preview/values.yaml)
  steps:
    - name: preview-logic
      image: bitnami/kubectl:latest
      workingDir: $(workspaces.source.path)
      script: |
        # Use a specific naming convention for the PR namespace
        NS="$(params.app-name)-pr-$(params.pr-number)"
        
        if [ "$(params.action)" = "delete" ]; then
          echo "Cleaning up PR environment..."
          kubectl delete namespace $NS --ignore-not-found
          exit 0
        fi

        echo "Deploying PR environment to namespace: $NS"
        kubectl create namespace $NS --dry-run=client -o yaml | kubectl apply -f -
        
        # Check if the app repo has custom preview values
        VALUES_REF_YAML=""
        if [ -f "preview/values.yaml" ]; then
          kubectl create configmap preview-values --from-file=values.yaml=preview/values.yaml \
            -n $NS --dry-run=client -o yaml | kubectl apply -f -
          VALUES_REF_YAML="- kind: ConfigMap\n      name: preview-values"
        fi

        # Apply the HelmRelease for this specific PR
        cat <<EOF | kubectl apply -n $NS -f -
        apiVersion: helm.toolkit.fluxcd.io/v2beta1
        kind: HelmRelease
        metadata:
          name: $(params.app-name)-pr-$(params.pr-number)
        spec:
          interval: 5m
          releaseName: $(params.app-name)
          chart:
            spec:
              chart: charts/$(params.app-name)
              sourceRef:
                kind: HelmRepository
                name: ghcr-charts
                namespace: flux-system
          valuesFrom:
            $(echo -e $VALUES_REF_YAML)
          values:
            image:
              tag: "$(params.image-tag)"
            ingress:
              enabled: true
              hosts:
                - host: $(params.app-name)-pr-$(params.pr-number).nid3.com
                  paths:
                    - path: /
                      pathType: ImplementationSpecific
        EOF