name: Bundles Builder

on:
  # Create bundle from manual action
  workflow_dispatch:
    inputs:
      gh_ref:
        description: 'Name of the branch or ref'
        type: string
        required: true
        default: 'develop'
  workflow_call:
    inputs:
      gh_ref:
        description: 'Name of the branch or ref'
        type: string
        required: true
        default: 'develop'

concurrency:
  group: ${{ github.workflow }}-${{ inputs.gh_ref }}
  cancel-in-progress: true

jobs:
  # ── 1. Decide whether there is anything to build ───────────────────────
  check:
    name: Check current bundle
    runs-on: penpot-runner-01
    timeout-minutes: 10
    outputs:
      gh_ref: ${{ steps.vars.outputs.gh_ref }}
      bundle_version: ${{ steps.vars.outputs.bundle_version }}
      exists: ${{ steps.check.outputs.exists }}

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
          ref: ${{ inputs.gh_ref }}

      - name: Extract some useful variables
        id: vars
        run: |
          echo "gh_ref=${{ inputs.gh_ref || github.ref_name }}" >> $GITHUB_OUTPUT
          echo "bundle_version=$(git describe --tags --always)" >> $GITHUB_OUTPUT

      # The uploaded zip carries its version as S3 metadata. If the
      # existing object was already built from this same commit, the
      # whole build job is skipped.
      - name: Check if this bundle is already built
        id: check
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_DEFAULT_REGION: ${{ secrets.AWS_REGION }}
        run: |
          EXISTING_VERSION=$(aws s3api head-object \
            --bucket ${{ secrets.S3_BUCKET }} \
            --key "penpot-${{ steps.vars.outputs.gh_ref }}.zip" \
            --query 'Metadata."bundle-version"' \
            --output text 2>/dev/null || echo "none")

          if [ "$EXISTING_VERSION" = "${{ steps.vars.outputs.bundle_version }}" ]; then
            echo "exists=true" >> $GITHUB_OUTPUT
            {
              echo "### ⏭️ Bundle build skipped"
              echo ""
              echo "The bundle in S3 was already built from \`${{ steps.vars.outputs.bundle_version }}\`."
            } >> "$GITHUB_STEP_SUMMARY"
          else
            echo "exists=false" >> $GITHUB_OUTPUT
          fi

  # ── 2. Build and upload, only when needed ──────────────────────────────
  build:
    name: Build and Upload Penpot Bundle
    runs-on: penpot-runner-01
    timeout-minutes: 90
    needs: check
    if: needs.check.outputs.exists == 'false'

    steps:
      - name: Checkout repository
        uses: actions/checkout@v6
        with:
          fetch-depth: 0
          ref: ${{ inputs.gh_ref }}

      - name: Build bundle
        env:
          BUILD_WASM: 'yes'
          BUILD_STORYBOOK: 'yes'
        run: ./manage.sh build-bundle

      - name: Prepare directories for zipping
        run: |
          mkdir zips
          mv bundles penpot

      - name: Create zip bundle
        run: |
          echo "📦 Packaging Penpot bundle..."
          zip -r zips/penpot.zip penpot

      - name: Upload Penpot bundle to S3
        env:
          AWS_ACCESS_KEY_ID: ${{ secrets.AWS_ACCESS_KEY_ID }}
          AWS_SECRET_ACCESS_KEY: ${{ secrets.AWS_SECRET_ACCESS_KEY }}
          AWS_DEFAULT_REGION: ${{ secrets.AWS_REGION }}
        run: |
          aws s3 cp zips/penpot.zip \
            s3://${{ secrets.S3_BUCKET }}/penpot-${{ needs.check.outputs.gh_ref }}.zip \
            --metadata bundle-version=${{ needs.check.outputs.bundle_version }}

  # ── 3. Single failure notification for the whole workflow ─────────────
  notify:
    name: Notify failure
    runs-on: penpot-runner-01
    timeout-minutes: 5
    needs: [check, build]
    if: failure()

    steps:
      - name: Notify Mattermost
        uses: mattermost/action-mattermost-notify@ae31bb6f9e26a54336e79696f108a2c91cf55b4e # v2.1.0
        with:
          MATTERMOST_WEBHOOK_URL: ${{ secrets.MATTERMOST_WEBHOOK }}
          MATTERMOST_CHANNEL: bot-alerts-cicd
          TEXT: |
            ❌ 📦 *[PENPOT] Error building penpot bundles.*
            📄 Triggered from ref: `${{ needs.check.outputs.gh_ref || inputs.gh_ref }}`
               Bundle version: `${{ needs.check.outputs.bundle_version || 'n/a' }}`
            🔗 Run: https://github.com/${{ github.repository }}/actions/runs/${{ github.run_id }}
            @infra