name: Release

on:
  workflow_dispatch:

permissions:
  contents: read

concurrency:
  group: release-main
  cancel-in-progress: false

jobs:
  preflight:
    name: Preflight
    runs-on: ubuntu-latest
    permissions:
      contents: write
    outputs:
      should_release: ${{ steps.probe.outputs.should_release }}
      version: ${{ steps.probe.outputs.version }}

    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0

      - name: Install pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0

      - name: Setup Node.js
        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 24
          cache: 'pnpm'

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Probe semantic-release
        id: probe
        shell: bash
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail

          npx semantic-release@25 --dry-run --no-ci 2>&1 | tee semantic-release.log

          if grep -qi "the next release version is" semantic-release.log; then
            echo "should_release=true" >> "$GITHUB_OUTPUT"
            VERSION=$(grep -oiE "the next release version is [0-9]+\.[0-9]+\.[0-9]+" semantic-release.log | grep -oE "[0-9]+\.[0-9]+\.[0-9]+")
            echo "version=$VERSION" >> "$GITHUB_OUTPUT"
          else
            echo "should_release=false" >> "$GITHUB_OUTPUT"
          fi

  build-docker:
    name: Build Docker (${{ matrix.platform }})
    needs: preflight
    if: needs.preflight.outputs.should_release == 'true'
    permissions:
      contents: read
    strategy:
      fail-fast: true
      matrix:
        include:
          - platform: linux/amd64
            runner: ubuntu-latest
          - platform: linux/arm64
            runner: ubuntu-24.04-arm
    runs-on: ${{ matrix.runner }}

    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0

      - name: Log in to Docker Hub
        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4.0.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Build and push by digest
        id: build
        uses: docker/build-push-action@d08e5c354a6adb9ed34480a06d141179aa583294 # v7.0.0
        with:
          context: .
          platforms: ${{ matrix.platform }}
          provenance: mode=max
          sbom: true
          outputs: type=image,name=keygraph/shannon,push-by-digest=true,name-canonical=true,push=true

      - name: Export digest
        run: |
          mkdir -p /tmp/digests
          digest="${{ steps.build.outputs.digest }}"
          touch "/tmp/digests/${digest#sha256:}"

      - name: Upload digest
        uses: actions/upload-artifact@b7c566a772e6b6bfb58ed0dc250532a479d7789f # v6.0.0
        with:
          name: digests-${{ matrix.platform == 'linux/amd64' && 'amd64' || 'arm64' }}
          path: /tmp/digests/*
          if-no-files-found: error
          retention-days: 1

  merge-docker:
    name: Push Docker manifests
    needs: [preflight, build-docker]
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write
    outputs:
      digest: ${{ steps.inspect.outputs.digest }}

    steps:
      - name: Download digests
        uses: actions/download-artifact@018cc2cf5baa6db3ef3c5f8a56943fffe632ef53 # v6.0.0
        with:
          path: /tmp/digests
          pattern: digests-*
          merge-multiple: true

      - name: Set up Docker Buildx
        uses: docker/setup-buildx-action@4d04d5d9486b7bd6fa91e7baf45bbb4f8b9deedd # v4.0.0

      - name: Log in to Docker Hub
        uses: docker/login-action@b45d80f862d83dbcd57f89517bcf500b2ab88fb2 # v4.0.0
        with:
          username: ${{ secrets.DOCKERHUB_USERNAME }}
          password: ${{ secrets.DOCKERHUB_TOKEN }}

      - name: Create manifest list and push
        working-directory: /tmp/digests
        run: |
          docker buildx imagetools create \
            --tag "keygraph/shannon:${{ needs.preflight.outputs.version }}" \
            --tag "keygraph/shannon:latest" \
            $(printf 'keygraph/shannon@sha256:%s ' *)

      - name: Inspect image
        id: inspect
        run: |
          docker buildx imagetools inspect "keygraph/shannon:${{ needs.preflight.outputs.version }}"
          DIGEST="sha256:$(docker buildx imagetools inspect --raw "keygraph/shannon:${{ needs.preflight.outputs.version }}" | sha256sum | cut -d' ' -f1)"
          echo "digest=$DIGEST" >> "$GITHUB_OUTPUT"

      - name: Install cosign
        uses: sigstore/cosign-installer@ba7bc0a3fef59531c69a25acd34668d6d3fe6f22 # v4.1.0

      - name: Sign Docker image
        run: cosign sign --yes "keygraph/shannon@${{ steps.inspect.outputs.digest }}"

      - name: Verify Docker image signature
        run: |
          sleep 10
          cosign verify \
            --certificate-oidc-issuer https://token.actions.githubusercontent.com \
            --certificate-identity https://github.com/${{ github.repository }}/.github/workflows/release.yml@${{ github.ref }} \
            "keygraph/shannon@${{ steps.inspect.outputs.digest }}"

  publish-npm:
    name: Publish npm
    needs: [preflight, merge-docker]
    runs-on: ubuntu-latest
    permissions:
      contents: read
      id-token: write

    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Install pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0

      - name: Configure npm registry
        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 24
          registry-url: https://registry.npmjs.org
          cache: 'pnpm'

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Set CLI package version
        run: cd apps/cli && npm version "${{ needs.preflight.outputs.version }}" --no-git-tag-version --allow-same-version

      - name: Sync lockfile with bumped version
        run: pnpm install --lockfile-only

      - name: Build CLI
        run: pnpm --filter @keygraph/shannon run build

      - name: Publish npm package
        working-directory: apps/cli
        env:
          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
        run: |
          if npm view "@keygraph/shannon@${{ needs.preflight.outputs.version }}" version 2>/dev/null; then
            echo "Version already published, skipping"
          else
            pnpm publish --access public --no-git-checks
          fi

  release:
    name: Create GitHub release
    needs: [preflight, publish-npm]
    runs-on: ubuntu-latest
    permissions:
      contents: write

    steps:
      - name: Checkout
        uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
        with:
          fetch-depth: 0

      - name: Install pnpm
        uses: pnpm/action-setup@fc06bc1257f339d1d5d8b3a19a8cae5388b55320 # v4.4.0

      - name: Setup Node.js
        uses: actions/setup-node@53b83947a5a98c8d113130e565377fae1a50d02f # v6.3.0
        with:
          node-version: 24
          cache: 'pnpm'

      - name: Install dependencies
        run: pnpm install --frozen-lockfile

      - name: Create GitHub release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: npx semantic-release@25