name: Validate manifests

on:
  push:
  pull_request:

jobs:
  validate:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Install tools
        run: |
          curl -sL https://github.com/yannh/kubeconform/releases/latest/download/kubeconform-linux-amd64.tar.gz \
            | tar xz -C /usr/local/bin

          # Traefik IngressRoute is a CRD, so kubeconform needs an extra schema source.
          mkdir -p .ci-schemas/traefik.io
          curl -fsSL https://raw.githubusercontent.com/datreeio/CRDs-catalog/main/traefik.io/ingressroute_v1alpha1.json \
            -o .ci-schemas/traefik.io/ingressroute_v1alpha1.json
          cp .ci-schemas/traefik.io/ingressroute_v1alpha1.json .ci-schemas/traefik.io/IngressRoute_v1alpha1.json
          cp .ci-schemas/traefik.io/ingressroute_v1alpha1.json .ci-schemas/traefik.io/IngressRoute.json
          cp .ci-schemas/traefik.io/ingressroute_v1alpha1.json .ci-schemas/traefik.io/ingressroute.json

          # ArgoCD Application is also a CRD.
          mkdir -p .ci-schemas/argoproj.io
          curl -fsSL https://raw.githubusercontent.com/datreeio/CRDs-catalog/main/argoproj.io/application_v1alpha1.json \
            -o .ci-schemas/argoproj.io/application_v1alpha1.json
          cp .ci-schemas/argoproj.io/application_v1alpha1.json .ci-schemas/argoproj.io/Application_v1alpha1.json
          cp .ci-schemas/argoproj.io/application_v1alpha1.json .ci-schemas/argoproj.io/Application.json
          cp .ci-schemas/argoproj.io/application_v1alpha1.json .ci-schemas/argoproj.io/application.json

      - name: kubeconform - raw YAML
        run: |
          bootstrap_enabled=false
          if [ -f bootstrap/config.yaml ] && grep -Eq '^[[:space:]]*enabled:[[:space:]]*true[[:space:]]*$' bootstrap/config.yaml; then
            bootstrap_enabled=true
          fi

          mapfile -t manifests < <(
            find . -type f -name '*.yaml' \
            ! -path './.gitea/*' \
            ! -name '.sops.yaml' \
            ! -name '*.secret.yaml' \
            ! -name 'kustomization.yaml' \
            ! \( -name 'secret*.yaml' \) \
            ! \( -path '*/config/*' -prune \) \
            ! -path './bootstrap/config.yaml' \
            | sort
          )

          if [ "$bootstrap_enabled" != "true" ]; then
            filtered=()
            for manifest in "${manifests[@]}"; do
              [ "$manifest" = "./bootstrap/application.yaml" ] && continue
              filtered+=("$manifest")
            done
            manifests=("${filtered[@]}")
          fi

          if [ "${#manifests[@]}" -eq 0 ]; then
            echo "No manifests found"
            exit 0
          fi

          printf '%s\n' "${manifests[@]}" \
            | xargs kubeconform \
                -strict \
                -kubernetes-version 1.35.0 \
                -schema-location default \
                -schema-location '.ci-schemas/{{.Group}}/{{.ResourceKind}}{{.KindSuffix}}.json' \
                -schema-location '.ci-schemas/{{.Group}}/{{.ResourceKind}}_{{.ResourceAPIVersion}}.json' \
                -summary

      - name: SOPS - check no secret files committed unencrypted
        run: |
          fail=0

          while IFS= read -r file; do
            if ! grep -q 'sops:' "$file"; then
              echo "ERROR: $file appears to be unencrypted"
              fail=1
            fi
          done < <(
            find . -type f \( -name '*.secret.yaml' -o -name '*.enc.yaml' \) | sort
          )

          exit "$fail"

      - name: Apply bootstrap Application
        env:
          KUBECONFIG_B64: ${{ secrets.KUBECONFIG_B64 }}
        run: |
          if [ "${GITHUB_EVENT_NAME:-}" != "push" ] || [ "${GITHUB_REF:-}" != "refs/heads/main" ]; then
            echo "Skipping bootstrap apply: only push events on main may apply"
            exit 0
          fi

          if [ ! -f bootstrap/config.yaml ] || ! grep -Eq '^[[:space:]]*enabled:[[:space:]]*true[[:space:]]*$' bootstrap/config.yaml; then
            echo "Skipping bootstrap apply: bootstrap/config.yaml is not enabled"
            exit 0
          fi

          if [ -z "${KUBECONFIG_B64:-}" ]; then
            echo "Warning: KUBECONFIG_B64 secret not set — skipping bootstrap apply"
            exit 0
          fi

          curl -fsSL https://dl.k8s.io/release/$(curl -fsSL https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl \
            -o /usr/local/bin/kubectl
          chmod +x /usr/local/bin/kubectl

          mkdir -p "${HOME}/.kube"
          printf '%s' "$KUBECONFIG_B64" | base64 -d > "${HOME}/.kube/config"

          kubectl apply -f bootstrap/application.yaml