name: Release

on:
  push:
    tags:
      - "v*"

permissions:
  contents: write
  packages: write
  id-token: write

env:
  GO_VERSION: "1.25"
  NODE_VERSION: "20"

jobs:
  build:
    name: Build ${{ matrix.goos }}/${{ matrix.goarch }}
    runs-on: ubuntu-latest
    strategy:
      matrix:
        include:
          - goos: linux
            goarch: amd64
            suffix: ""
          - goos: linux
            goarch: arm64
            suffix: ""
          - goos: darwin
            goarch: amd64
            suffix: ""
          - goos: darwin
            goarch: arm64
            suffix: ""
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version: ${{ env.GO_VERSION }}

      - uses: actions/setup-node@v4
        with:
          node-version: ${{ env.NODE_VERSION }}
          cache: npm
          cache-dependency-path: web/package-lock.json

      - name: Build web frontend
        run: |
          cd web && npm install --legacy-peer-deps && npm run build

      - name: Copy web assets
        run: |
          rm -rf internal/web/dist
          cp -r web/build internal/web/dist

      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Build binary
        env:
          CGO_ENABLED: "0"
          GOOS: ${{ matrix.goos }}
          GOARCH: ${{ matrix.goarch }}
        run: |
          go build \
            -ldflags "-s -w -X main.version=${{ steps.version.outputs.VERSION }}" \
            -o "synapbus${{ matrix.suffix }}" \
            ./cmd/synapbus/

      - name: Create archive
        run: |
          ARCHIVE_NAME="synapbus-${{ matrix.goos }}-${{ matrix.goarch }}"
          tar czf "${ARCHIVE_NAME}.tar.gz" synapbus

      - uses: actions/upload-artifact@v4
        with:
          name: synapbus-${{ matrix.goos }}-${{ matrix.goarch }}
          path: synapbus-*.tar.gz

  homebrew:
    name: Generate Homebrew Formula
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/download-artifact@v4
        with:
          path: artifacts
          merge-multiple: true

      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Calculate checksums and generate formula
        run: |
          DARWIN_AMD64_SHA=$(sha256sum artifacts/synapbus-darwin-amd64.tar.gz | awk '{print $1}')
          DARWIN_ARM64_SHA=$(sha256sum artifacts/synapbus-darwin-arm64.tar.gz | awk '{print $1}')
          LINUX_AMD64_SHA=$(sha256sum artifacts/synapbus-linux-amd64.tar.gz | awk '{print $1}')
          LINUX_ARM64_SHA=$(sha256sum artifacts/synapbus-linux-arm64.tar.gz | awk '{print $1}')
          VERSION="${{ steps.version.outputs.VERSION }}"
          REPO="https://github.com/${{ github.repository }}"

          cat > synapbus.rb <<FORMULA
          # typed: false
          # frozen_string_literal: true

          class Synapbus < Formula
            desc "Local-first, MCP-native agent-to-agent messaging service"
            homepage "${REPO}"
            version "${VERSION}"
            license "Apache-2.0"

            on_macos do
              if Hardware::CPU.intel?
                url "${REPO}/releases/download/${GITHUB_REF_NAME}/synapbus-darwin-amd64.tar.gz"
                sha256 "${DARWIN_AMD64_SHA}"
              end
              if Hardware::CPU.arm?
                url "${REPO}/releases/download/${GITHUB_REF_NAME}/synapbus-darwin-arm64.tar.gz"
                sha256 "${DARWIN_ARM64_SHA}"
              end
            end

            on_linux do
              if Hardware::CPU.intel?
                url "${REPO}/releases/download/${GITHUB_REF_NAME}/synapbus-linux-amd64.tar.gz"
                sha256 "${LINUX_AMD64_SHA}"
              end
              if Hardware::CPU.arm?
                url "${REPO}/releases/download/${GITHUB_REF_NAME}/synapbus-linux-arm64.tar.gz"
                sha256 "${LINUX_ARM64_SHA}"
              end
            end

            def install
              bin.install "synapbus"
            end

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

          # Remove leading whitespace from heredoc
          sed -i 's/^          //' synapbus.rb

      - uses: actions/upload-artifact@v4
        with:
          name: homebrew-formula
          path: synapbus.rb

  release:
    name: GitHub Release
    needs: [build, homebrew]
    runs-on: ubuntu-latest
    steps:
      - uses: actions/download-artifact@v4
        with:
          path: artifacts
          merge-multiple: true

      - name: List artifacts
        run: ls -la artifacts/

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          generate_release_notes: true
          files: |
            artifacts/synapbus-*.tar.gz
            artifacts/synapbus.rb

  docker:
    name: Docker Image
    needs: build
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - uses: docker/setup-qemu-action@v3

      - uses: docker/setup-buildx-action@v3

      - uses: docker/login-action@v3
        with:
          registry: ghcr.io
          username: ${{ github.actor }}
          password: ${{ secrets.GITHUB_TOKEN }}

      - name: Docker metadata
        id: meta
        uses: docker/metadata-action@v5
        with:
          images: ghcr.io/synapbus/synapbus
          tags: |
            type=semver,pattern={{version}}
            type=semver,pattern={{major}}.{{minor}}
            type=raw,value=latest

      - uses: docker/build-push-action@v6
        with:
          context: .
          push: true
          platforms: linux/amd64,linux/arm64
          build-args: |
            VERSION=${{ steps.version.outputs.VERSION }}
          tags: ${{ steps.meta.outputs.tags }}
          labels: ${{ steps.meta.outputs.labels }}
          cache-from: type=gha
          cache-to: type=gha,mode=max

  mcp-registry:
    name: Publish to MCP Registry
    needs: release
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - name: Extract version from tag
        id: version
        run: echo "VERSION=${GITHUB_REF_NAME#v}" >> "$GITHUB_OUTPUT"

      - name: Install mcp-publisher
        run: |
          curl -L "https://github.com/modelcontextprotocol/registry/releases/latest/download/mcp-publisher_linux_amd64.tar.gz" | tar xz mcp-publisher

      - name: Authenticate to MCP Registry
        run: ./mcp-publisher login github-oidc

      - name: Update version in server.json
        run: |
          jq --arg v "${{ steps.version.outputs.VERSION }}" '.version = $v' server.json > server.tmp && mv server.tmp server.json

      - name: Publish to MCP Registry
        run: ./mcp-publisher publish