name: Release

# Build the agent for every supported target on a version tag and attach the
# archives to a GitHub release. Linux is a fully static musl binary (built with
# cargo-zigbuild) so one artifact runs on any distro — Arch, Alpine, NixOS, old
# glibc systems alike — and can then be repackaged however a distro prefers.
on:
  push:
    tags: ["v*"]

permissions:
  contents: read

env:
  CARGO_TERM_COLOR: always
  CARGO_NET_RETRY: "10"

jobs:
  build:
    name: ${{ matrix.asset }}
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-latest
            target: x86_64-unknown-linux-musl
            asset: tsunagi-linux-x86_64
            archive: tar.gz
            zig: true
          - os: ubuntu-latest
            target: aarch64-unknown-linux-musl
            asset: tsunagi-linux-aarch64
            archive: tar.gz
            zig: true
          - os: macos-latest
            target: aarch64-apple-darwin
            asset: tsunagi-macos-aarch64
            archive: tar.gz
            zig: false
          - os: windows-latest
            target: x86_64-pc-windows-msvc
            asset: tsunagi-windows-x86_64
            archive: zip
            zig: false

    steps:
      - uses: actions/checkout@v4

      - uses: dtolnay/rust-toolchain@stable
        with:
          targets: ${{ matrix.target }}

      - uses: Swatinem/rust-cache@v2
        with:
          key: ${{ matrix.target }}

      # aws-lc-sys (iroh's rustls backend) and the bundled sqlite are C, and the
      # musl targets have no prebuilt bindings, so bindgen needs libclang and the
      # C build needs cmake. zig is the cross C compiler cargo-zigbuild drives.
      - name: Install musl build tooling
        if: matrix.zig
        run: sudo apt-get update && sudo apt-get install -y --no-install-recommends cmake clang libclang-dev
      - name: Install zig
        if: matrix.zig
        uses: mlugg/setup-zig@v1
      - name: Install cargo-zigbuild
        if: matrix.zig
        uses: taiki-e/install-action@v2
        with:
          tool: cargo-zigbuild

      - name: Build
        shell: bash
        run: |
          set -euo pipefail
          if [[ "${{ matrix.zig }}" == "true" ]]; then
            cargo zigbuild --release --locked --target "${{ matrix.target }}" --bin tsunagi
          else
            cargo build --release --locked --target "${{ matrix.target }}" --bin tsunagi
          fi

      - name: Package
        shell: bash
        run: |
          set -euo pipefail

          version="${GITHUB_REF_NAME#v}"
          stage="dist/pkg/${{ matrix.asset }}"
          mkdir -p "$stage"

          bin="tsunagi"
          [[ "${{ runner.os }}" == "Windows" ]] && bin="tsunagi.exe"
          cp "target/${{ matrix.target }}/release/${bin}" "$stage/"

          # The top-level README, plus the per-OS install notes and integration
          # files, so the archive carries what the platform needs to set up.
          cp README.md "$stage/"
          case "${{ runner.os }}" in
            Linux)
              cp dist/linux/tsunagi.service dist/linux/install.sh "$stage/"
              cp dist/linux/README.md "$stage/INSTALL.md"
              ;;
            macOS)
              cp dist/macos/cy.hexor.tsunagi.plist "$stage/"
              cp dist/macos/README.md "$stage/INSTALL.md"
              ;;
            Windows)
              cp dist/windows/README.md "$stage/INSTALL.md"
              ;;
          esac

          archive="${{ matrix.asset }}-${version}.${{ matrix.archive }}"
          if [[ "${{ matrix.archive }}" == "zip" ]]; then
            (cd dist/pkg && 7z a "../../${archive}" "${{ matrix.asset }}")
          else
            tar -C dist/pkg -czf "${archive}" "${{ matrix.asset }}"
          fi

      - uses: actions/upload-artifact@v4
        with:
          name: ${{ matrix.asset }}
          path: ${{ matrix.asset }}-*.*
          if-no-files-found: error

  publish:
    name: Publish release
    needs: build
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
      - uses: actions/checkout@v4

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

      - name: Create release and upload assets
        env:
          GH_TOKEN: ${{ github.token }}
          RELEASE_TAG: ${{ github.ref_name }}
        run: |
          set -euo pipefail
          gh release create "$RELEASE_TAG" artifacts/*/* \
            --title "tsunagi ${RELEASE_TAG}" \
            --generate-notes \
            --verify-tag