name: CI

on:
  workflow_call:
    inputs:
      k8s_dir:
        description: "Path to Kubernetes manifests directory"
        required: false
        default: "k8s/"
        type: string
      helmfile_path:
        description: "Path to helmfile.yaml"
        required: false
        default: "helmfile.yaml"
        type: string
      skip_helm_validation:
        description: "Skip Helm validation even if helmfile.yaml exists"
        required: false
        default: false
        type: boolean

jobs:
  detect-service-type:
    runs-on: ubuntu-latest
    outputs:
      has_helmfile: ${{ steps.check-helmfile.outputs.exists }}
      has_k8s: ${{ steps.check-k8s.outputs.exists }}
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - name: Check if helmfile.yaml exists
        id: check-helmfile
        run: |
          if [ -f "${{ inputs.helmfile_path }}" ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
            echo "Found helmfile.yaml at ${{ inputs.helmfile_path }}"
          else
            echo "exists=false" >> $GITHUB_OUTPUT
            echo "No helmfile.yaml found at ${{ inputs.helmfile_path }}"
          fi
      - name: Check if k8s directory exists
        id: check-k8s
        run: |
          if [ -d "${{ inputs.k8s_dir }}" ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
            echo "Found k8s directory at ${{ inputs.k8s_dir }}"
          else
            echo "exists=false" >> $GITHUB_OUTPUT
            echo "No k8s directory found at ${{ inputs.k8s_dir }}"
          fi

  validate-k8s:
    runs-on: ubuntu-latest
    needs: detect-service-type
    if: needs.detect-service-type.outputs.has_k8s == 'true'
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: ./.gitea/actions/extract-namespace-from-repo-name
        id: namespace
        with:
          repo: ${{ github.repository }}
      - uses: azure/setup-kubectl@776406bce94f63e41d621b960d78ee25c8b76ede # v4.0.1
      - uses: azure/k8s-set-context@ae59a723ba9abe7a9655538854a025448dbab4aa # v4.0.2
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Validate k8s manifests
        uses: azure/k8s-lint@6aefe5066f95e73d2b140d8835cc95583b886989 # v3.0.1
        with:
          namespace: ${{ steps.namespace.outputs.namespace }}
          lintType: dryrun
          manifests: "${{ inputs.k8s_dir }}"

  validate-helm:
    runs-on: ubuntu-latest
    needs: detect-service-type
    if: |
      needs.detect-service-type.outputs.has_helmfile == 'true' && 
      needs.detect-service-type.outputs.has_k8s == 'true' && 
      inputs.skip_helm_validation != 'true'
    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
      - uses: ./.gitea/actions/extract-namespace-from-repo-name
        id: namespace
        with:
          repo: ${{ github.repository }}
      - uses: azure/setup-kubectl@776406bce94f63e41d621b960d78ee25c8b76ede # v4.0.1
      - uses: azure/setup-helm@1a275c3b69536ee54be43f2070a358922e12c8d4 # v4
      - uses: azure/k8s-set-context@ae59a723ba9abe7a9655538854a025448dbab4aa # v4.0.2
        with:
          method: kubeconfig
          kubeconfig: ${{ secrets.KUBECONFIG }}
      - name: Validate Helm
        uses: helmfile/helmfile-action@99b1d18ad3989701cf26a54e65baf4a3ee8156b0 # v2.4.0
        with:
          helmfile-args: diff

  # Summary job that always runs to show what was validated
  ci-summary:
    runs-on: ubuntu-latest
    needs: [ detect-service-type, validate-k8s, validate-helm ]
    if: always()
    steps:
      - name: CI Summary
        run: |
          echo "## CI Validation Summary" >> $GITHUB_STEP_SUMMARY
          echo "" >> $GITHUB_STEP_SUMMARY

          if [ "${{ needs.detect-service-type.outputs.has_k8s }}" == "true" ]; then
            echo "✅ **Kubernetes validation**: Completed" >> $GITHUB_STEP_SUMMARY
          else
            echo "❌ **Kubernetes validation**: Skipped (no k8s/ directory found)" >> $GITHUB_STEP_SUMMARY
          fi

          if [ "${{ needs.detect-service-type.outputs.has_helmfile }}" == "true" ] && [ "${{ inputs.skip_helm_validation }}" != "true" ]; then
            echo "✅ **Helm validation**: Completed" >> $GITHUB_STEP_SUMMARY
          elif [ "${{ needs.detect-service-type.outputs.has_helmfile }}" == "true" ] && [ "${{ inputs.skip_helm_validation }}" == "true" ]; then
            echo "⏭️ **Helm validation**: Skipped (manually disabled)" >> $GITHUB_STEP_SUMMARY
          else
            echo "⏭️ **Helm validation**: Skipped (no helmfile.yaml found)" >> $GITHUB_STEP_SUMMARY
          fi

          echo "" >> $GITHUB_STEP_SUMMARY
          echo "**Service Type**: ${{ needs.detect-service-type.outputs.has_helmfile == 'true' && 'Helm + Kubernetes' || 'Kubernetes Only' }}" >> $GITHUB_STEP_SUMMARY