name: Release

on:
  push:
    tags:
      - "v*"
  workflow_dispatch:

jobs:
  build_release:
    name: Build ${{ matrix.asset_name }}
    runs-on: ${{ matrix.runner }}
    permissions:
      contents: write
    strategy:
      fail-fast: false
      matrix:
        include:
          - runner: ubuntu-latest
            asset_name: omnigraph-linux-x86_64
          - runner: macos-15-intel
            asset_name: omnigraph-macos-x86_64
          - runner: macos-14
            asset_name: omnigraph-macos-arm64
    env:
      CARGO_TERM_COLOR: always
    steps:
      - name: Checkout source
        uses: actions/checkout@v5.0.1

      - name: Install Linux dependencies
        if: runner.os == 'Linux'
        run: |
          sudo apt-get update
          sudo apt-get install -y protobuf-compiler libprotobuf-dev

      - name: Install macOS dependencies
        if: runner.os == 'macOS'
        run: brew install protobuf

      - name: Install Rust stable
        uses: dtolnay/rust-toolchain@stable
        with:
          toolchain: stable

      - name: Cache Rust build data
        uses: Swatinem/rust-cache@v2
        with:
          workspaces: |
            . -> target

      - name: Build release binaries
        run: cargo build --release --locked -p omnigraph-cli -p omnigraph-server

      - name: Package release archive
        run: |
          mkdir -p release
          install -m 0755 target/release/omnigraph release/omnigraph
          install -m 0755 target/release/omnigraph-server release/omnigraph-server
          tar -C release -czf "${{ matrix.asset_name }}.tar.gz" omnigraph omnigraph-server
          shasum -a 256 "${{ matrix.asset_name }}.tar.gz" > "${{ matrix.asset_name }}.sha256"

      - name: Publish GitHub release assets
        uses: softprops/action-gh-release@v2.5.0
        with:
          files: |
            ${{ matrix.asset_name }}.tar.gz
            ${{ matrix.asset_name }}.sha256

  update_homebrew_tap:
    name: Update Homebrew tap
    needs: build_release
    runs-on: ubuntu-latest
    permissions:
      contents: read
    env:
      HOMEBREW_TAP_TOKEN: ${{ secrets.HOMEBREW_TAP_TOKEN }}
    steps:
      - name: Skip if HOMEBREW_TAP_TOKEN is not configured
        if: env.HOMEBREW_TAP_TOKEN == ''
        run: |
          echo "HOMEBREW_TAP_TOKEN is not set; skipping Homebrew tap update."
          echo "HOMEBREW_TAP_SKIP=1" >> "$GITHUB_ENV"

      - name: Checkout source
        if: env.HOMEBREW_TAP_SKIP != '1'
        uses: actions/checkout@v5.0.1

      - name: Checkout Homebrew tap
        if: env.HOMEBREW_TAP_SKIP != '1'
        uses: actions/checkout@v5.0.1
        with:
          repository: ModernRelay/homebrew-tap
          token: ${{ secrets.HOMEBREW_TAP_TOKEN }}
          path: homebrew-tap

      - name: Update formula from release assets
        if: env.HOMEBREW_TAP_SKIP != '1'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          ./scripts/update-homebrew-formula.sh "${GITHUB_REF_NAME}" homebrew-tap/Formula/omnigraph.rb

      - name: Commit and push formula update
        if: env.HOMEBREW_TAP_SKIP != '1'
        working-directory: homebrew-tap
        run: |
          if git diff --quiet -- Formula/omnigraph.rb; then
            echo "Formula already up to date"
            exit 0
          fi

          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
          git add Formula/omnigraph.rb
          git commit -m "Update Omnigraph formula to ${GITHUB_REF_NAME}"
          git push origin HEAD:main