name: Release

on:
  push:
    tags:
      - 'v*.*.*'
  workflow_dispatch:

env:
  cache_nonce: 0 # Allows for easily busting actions/cache caches
  nim_version: pinned
  rust_version: 1.78.0
  binary_base: codex
  build_dir: build
  nim_flags: '-d:verify_circuit=true'
  windows_libs: 'libstdc++-6.dll libgomp-1.dll libgcc_s_seh-1.dll libwinpthread-1.dll'

jobs:
  # Matrix
  matrix:
    runs-on: ubuntu-latest
    outputs:
      matrix: ${{ steps.matrix.outputs.matrix }}
    steps:
    - name: Compute matrix
      id: matrix
      uses: fabiocaccamo/create-matrix-action@v4
      with:
        matrix: |
          os {linux},   cpu {amd64}, builder {ubuntu-22.04},                   nim_version {${{ env.nim_version }}}, rust_version {${{ env.rust_version }}}, shell {bash --noprofile --norc -e -o pipefail}
          os {linux},   cpu {arm64}, builder {buildjet-4vcpu-ubuntu-2204-arm}, nim_version {${{ env.nim_version }}}, rust_version {${{ env.rust_version }}}, shell {bash --noprofile --norc -e -o pipefail}
          os {macos},   cpu {amd64}, builder {macos-13},                       nim_version {${{ env.nim_version }}}, rust_version {${{ env.rust_version }}}, shell {bash --noprofile --norc -e -o pipefail}
          os {macos},   cpu {arm64}, builder {macos-14},                       nim_version {${{ env.nim_version }}}, rust_version {${{ env.rust_version }}}, shell {bash --noprofile --norc -e -o pipefail}
          os {windows}, cpu {amd64}, builder {windows-latest},                 nim_version {${{ env.nim_version }}}, rust_version {${{ env.rust_version }}}, shell {msys2}

  # Build
  build:
    needs: matrix
    strategy:
      fail-fast: false
      matrix:
        include: ${{fromJson(needs.matrix.outputs.matrix)}}

    defaults:
      run:
        shell: ${{ matrix.shell }} {0}

    name: ${{ matrix.os }}-${{ matrix.cpu }}-${{ matrix.nim_version }}
    runs-on: ${{ matrix.builder }}
    timeout-minutes: 80
    steps:
      - name: Release - Checkout sources
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Release - Setup Nimbus Build System
        uses: ./.github/actions/nimbus-build-system
        with:
          os: ${{ matrix.os }}
          cpu: ${{ matrix.cpu }}
          shell: ${{ matrix.shell }}
          nim_version: ${{ matrix.nim_version }}
          rust_version: ${{ matrix.rust_version }}

      - name: Release - Compute binary name
        run: |
          case ${{ matrix.os }} in
            linux*)   os_name="linux"   ;;
            macos*)   os_name="darwin"  ;;
            windows*) os_name="windows" ;;
          esac
          binary="${{ env.binary_base }}-${{ github.ref_name }}-${os_name}-${{ matrix.cpu }}"
          [[ ${os_name} == "windows" ]] && binary="${binary}.exe"
          echo "binary=${binary}" >>$GITHUB_ENV

      - name: Release - Build
        run: |
          make NIMFLAGS="--out:${{ env.build_dir }}/${{ env.binary }} ${{ env.nim_flags }}"

      - name: Release - Libraries
        run: |
          if [[ "${{ matrix.os }}" == "windows" ]]; then
            for lib in ${{ env.windows_libs }}; do
              cp -v "${MINGW_PREFIX}/bin/${lib}" "${{ env.build_dir }}"
            done
          fi

      - name: Release - Upload build artifacts
        uses: actions/upload-artifact@v4
        with:
          name: release-${{ env.binary }}
          path: ${{ env.build_dir }}/
          retention-days: 1

  # Release
  release:
    runs-on: ubuntu-latest
    needs: build
    if: success() || failure()
    steps:
      - name: Release - Download binaries
        uses: actions/download-artifact@v4
        with:
          pattern: release*
          merge-multiple: true
          path: /tmp/release

      - name: Release - Compress and checksum
        run: |
          cd /tmp/release
          checksum() {
            arc="${1}"
            sha256sum "${arc}" >"${arc}.sha256"
          }

          # Compress and prepare
          for file in *; do
            # Exclude libraries
            if [[ "${file}" != *".dll"* ]]; then
              if [[ "${file}" == *".exe"* ]]; then

                # Windows - binary only
                arc="${file%.*}.zip"
                zip "${arc}" "${file}"
                checksum "${arc}"

                # Windows - binary and libs
                arc="${file%.*}-libs.zip"
                zip "${arc}" "${file}" ${{ env.windows_libs }}
                rm -f "${file}" ${{ env.windows_libs }}
                checksum "${arc}"
              else

                # Linux/macOS
                arc="${file}.tar.gz"
                chmod 755 "${file}"
                tar cfz "${arc}" "${file}"
                rm -f "${file}"
                checksum "${arc}"
              fi
            fi
          done

      - name: Release - Upload compressed artifacts and checksums
        uses: actions/upload-artifact@v4
        with:
          name: archives-and-checksums
          path: /tmp/release/
          retention-days: 1

      - name: Release
        uses: softprops/action-gh-release@v2
        if: startsWith(github.ref, 'refs/tags/')
        with:
          files: |
            /tmp/release/*
          make_latest: true