name: "Release prb"

on:
  push:
    tags:
      - "prb/v*"

permissions:
  contents: "read"

jobs:
  build-binary:
    name: "binary (${{ matrix.goos }}/${{ matrix.goarch }})"
    runs-on: "runs-on=${{ github.run_id }}/runner=4cpu-linux-x64/extras=s3-cache"
    permissions:
      contents: "read"
    strategy:
      fail-fast: false
      matrix:
        include:
          - { goos: linux, goarch: amd64 }
          - { goos: linux, goarch: arm64 }
          - { goos: darwin, goarch: amd64 }
          - { goos: darwin, goarch: arm64 }
          - { goos: windows, goarch: amd64 }
          - { goos: freebsd, goarch: amd64 }
          - { goos: freebsd, goarch: arm64 }
          - { goos: openbsd, goarch: amd64 }
          - { goos: openbsd, goarch: arm64 }
    steps:
      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v6
        with:
          submodules: recursive
      - uses: "runs-on/action@d141ef83eb66d096ce8afc767e09115a65c63b60" # v2
      - uses: "./.github/actions/setup"
        with:
          node: "false"
      - name: "Build binary"
        env:
          CGO_ENABLED: "0"
          GOOS: "${{ matrix.goos }}"
          GOARCH: "${{ matrix.goarch }}"
        run: |
          VERSION="${GITHUB_REF_NAME##*/v}"
          EXT=""
          if [ "$GOOS" = "windows" ]; then EXT=".exe"; fi

          go build -ldflags "-s -w -X 'main.version=${VERSION}'" \
            -gcflags="-e" -o "dist/prb${EXT}" ./cmd/prb/main.go
      - name: "Create archive"
        env:
          GOOS: "${{ matrix.goos }}"
          GOARCH: "${{ matrix.goarch }}"
        run: |
          case "$GOOS" in
            linux)   OS="Linux" ;;
            darwin)  OS="Darwin" ;;
            windows) OS="Windows" ;;
            freebsd) OS="Freebsd" ;;
            openbsd) OS="Openbsd" ;;
          esac
          case "$GOARCH" in
            amd64) ARCH="x86_64" ;;
            *)     ARCH="$GOARCH" ;;
          esac
          EXT=""
          if [ "$GOOS" = "windows" ]; then EXT=".exe"; fi

          mkdir -p archives
          PRB_DIR="prb_${OS}_${ARCH}"
          mkdir -p "staging/${PRB_DIR}"
          cp "dist/prb${EXT}" README.md LICENSE cmd/prb/CHANGELOG.md "staging/${PRB_DIR}/"
          if [ "$GOOS" = "windows" ]; then
            (cd staging && zip -r "../archives/${PRB_DIR}.zip" "${PRB_DIR}")
          else
            tar -czf "archives/${PRB_DIR}.tar.gz" -C staging "${PRB_DIR}"
          fi
      - uses: "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" # v7
        with:
          name: "archive-${{ matrix.goos }}-${{ matrix.goarch }}"
          path: "archives/"
          retention-days: 1

  github-release:
    name: "github-release"
    needs: [build-binary]
    runs-on: "runs-on=${{ github.run_id }}/runner=2cpu-linux-x64/extras=s3-cache"
    permissions:
      contents: "write"
      id-token: "write"
      attestations: "write"
    steps:
      - uses: "actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0" # v6
        with:
          fetch-depth: 0
      - uses: "runs-on/action@d141ef83eb66d096ce8afc767e09115a65c63b60" # v2
      - uses: "sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6" # v4.1.2
      - uses: "actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c" # v8
        with:
          pattern: "archive-*"
          path: "archives"
          merge-multiple: true
      - name: "Generate checksums and sign"
        run: |
          cd archives
          sha256sum *.tar.gz *.zip > checksums.txt
          cosign sign-blob --bundle="checksums.txt.bundle" checksums.txt --yes
      - name: "Generate SBOM"
        uses: "anchore/sbom-action@e22c389904149dbc22b58101806040fa8d37a610" # v0.24.0
        with:
          path: ./cmd/prb
          format: cyclonedx-json
          output-file: sbom.json
      - name: "Run vulnerability scan"
        uses: "anchore/scan-action@e1165082ffb1fe366ebaf02d8526e7c4989ea9d2" # v7.4.0
        with:
          sbom: "sbom.json"
          fail-build: true
          severity-cutoff: critical
      - name: "Attest SBOM for archives"
        uses: "actions/attest-sbom@c604332985a26aa8cf1bdc465b92731239ec6b9e" # v4
        with:
          subject-path: "archives/*.tar.gz, archives/*.zip"
          sbom-path: "sbom.json"
      - name: "Attest build provenance for archives"
        uses: "actions/attest-build-provenance@0f67c3f4856b2e3261c31976d6725780e5e4c373" # v4
        with:
          subject-path: "archives/*.tar.gz, archives/*.zip"
      - name: "Extract release notes"
        run: |
          VERSION="${GITHUB_REF_NAME##*/v}"
          awk -v ver="$VERSION" '
            /^## \[/ { if (found) exit; if ($0 ~ "\\[" ver "\\]") found=1 }
            found
          ' cmd/prb/CHANGELOG.md > release-notes.md
      - name: "Create GitHub release"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          PRERELEASE_FLAG=""
          if echo "${GITHUB_REF_NAME}" | grep -qE '(alpha|beta|rc)'; then
            PRERELEASE_FLAG="--prerelease"
          fi

          gh release delete "${GITHUB_REF_NAME}" --yes 2>/dev/null || true

          gh release create "${GITHUB_REF_NAME}" \
            --title "${GITHUB_REF_NAME}" \
            --notes-file release-notes.md \
            $PRERELEASE_FLAG \
            archives/* sbom.json
      - uses: "actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a" # v7
        with:
          name: "sbom"
          path: "sbom.json"
          retention-days: 30

  homebrew:
    name: "homebrew"
    needs: [github-release]
    runs-on: "runs-on=${{ github.run_id }}/runner=2cpu-linux-x64/extras=s3-cache"
    permissions:
      contents: "read"
    steps:
      - uses: "runs-on/action@d141ef83eb66d096ce8afc767e09115a65c63b60" # v2
      - name: "Download checksums from release"
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release download "${GITHUB_REF_NAME}" \
            --repo "${GITHUB_REPOSITORY}" \
            --pattern "checksums.txt"
      - name: "Generate and publish Homebrew formula"
        env:
          GH_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
        run: |
          VERSION="${GITHUB_REF_NAME##*/v}"
          TAG="${GITHUB_REF_NAME}"
          BASE_URL="https://github.com/${GITHUB_REPOSITORY}/releases/download/${TAG}"

          DARWIN_ARM64_SHA=$(grep "prb_Darwin_arm64.tar.gz" checksums.txt | awk '{print $1}')
          DARWIN_X86_64_SHA=$(grep "prb_Darwin_x86_64.tar.gz" checksums.txt | awk '{print $1}')
          LINUX_ARM64_SHA=$(grep "prb_Linux_arm64.tar.gz" checksums.txt | awk '{print $1}')
          LINUX_X86_64_SHA=$(grep "prb_Linux_x86_64.tar.gz" checksums.txt | awk '{print $1}')

          cat > prb.rb << RUBY
          # typed: false
          # frozen_string_literal: true

          class Prb < Formula
            desc "Probo CLI"
            homepage "https://github.com/getprobo/probo"
            version "${VERSION}"
            license "MIT"

            on_macos do
              on_arm do
                url "${BASE_URL}/prb_Darwin_arm64.tar.gz"
                sha256 "${DARWIN_ARM64_SHA}"
              end
              on_intel do
                url "${BASE_URL}/prb_Darwin_x86_64.tar.gz"
                sha256 "${DARWIN_X86_64_SHA}"
              end
            end

            on_linux do
              on_arm do
                url "${BASE_URL}/prb_Linux_arm64.tar.gz"
                sha256 "${LINUX_ARM64_SHA}"
              end
              on_intel do
                url "${BASE_URL}/prb_Linux_x86_64.tar.gz"
                sha256 "${LINUX_X86_64_SHA}"
              end
            end

            def install
              bin.install "prb"
            end

            test do
              assert_match version.to_s, shell_output("#{bin}/prb --version")
            end
          end
          RUBY

          CONTENT=$(base64 -w0 prb.rb)
          HEAD_OID=$(gh api "repos/getprobo/homebrew-tap/git/ref/heads/main" --jq '.object.sha')

          gh api graphql -f query='
            mutation($headline: String!, $oid: GitObjectID!, $contents: Base64String!) {
              createCommitOnBranch(input: {
                branch: {
                  repositoryNameWithOwner: "getprobo/homebrew-tap"
                  branchName: "main"
                }
                message: { headline: $headline }
                expectedHeadOid: $oid
                fileChanges: {
                  additions: [{
                    path: "Formula/prb.rb"
                    contents: $contents
                  }]
                }
              }) {
                commit { url }
              }
            }' \
            -f headline="prb ${VERSION}" \
            -f oid="${HEAD_OID}" \
            -f contents="${CONTENT}"