name: CI
on:
  push:
    branches:
      - master
  pull_request:
  workflow_dispatch:

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        target:
          - os: linux
            cpu: amd64
          - os: linux-gcc-14 # This is to use ubuntu 24 and install gcc 14. Should be removed when ubuntu-latest is 26.04
            cpu: amd64
          - os: linux
            cpu: i386
          - os: macos
            cpu: amd64
          - os: macos
            cpu: arm64
          - os: windows
            cpu: amd64
        branch: [version-2-0, version-2-2, devel]
        include:
          - target:
              os: linux
            builder: ubuntu-latest
            shell: bash
          - target:
              os: linux-gcc-14 # This is to use ubuntu 24 and install gcc 14. Should be removed when ubuntu-latest is 26.04
            builder: ubuntu-24.04
            shell: bash
          - target:
              os: macos
              cpu: amd64
            builder: macos-13
            shell: bash
          - target:
              os: macos
              cpu: arm64
            builder: macos-latest
            shell: bash
          - target:
              os: windows
            builder: windows-latest
            shell: msys2 {0}

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

    name: '${{ matrix.target.os }}-${{ matrix.target.cpu }} (Nim ${{ matrix.branch }})'
    runs-on: ${{ matrix.builder }}
    steps:
      - name: Git checkout
        uses: actions/checkout@v4

      - name: Install build dependencies (Linux i386)
        if: runner.os == 'Linux' && matrix.target.cpu == 'i386'
        run: |
          sudo dpkg --add-architecture i386
          sudo apt-get update -qq
          sudo DEBIAN_FRONTEND='noninteractive' apt-get install \
            --no-install-recommends -yq gcc-multilib g++-multilib
          mkdir -p external/bin
          cat << EOF > external/bin/gcc
          #!/bin/bash
          exec $(which gcc) -m32 -mno-adx "\$@"
          EOF
          cat << EOF > external/bin/g++
          #!/bin/bash
          exec $(which g++) -m32 -mno-adx "\$@"
          EOF
          chmod 755 external/bin/gcc external/bin/g++
          echo "${{ github.workspace }}/external/bin" >> $GITHUB_PATH

      - name: MSYS2 (Windows i386)
        if: runner.os == 'Windows' && matrix.target.cpu == 'i386'
        uses: msys2/setup-msys2@v2
        with:
          path-type: inherit
          msystem: MINGW32
          install: >-
            base-devel
            git
            mingw-w64-i686-toolchain

      - name: MSYS2 (Windows amd64)
        if: runner.os == 'Windows' && matrix.target.cpu == 'amd64'
        uses: msys2/setup-msys2@v2
        with:
          path-type: inherit
          install: >-
            base-devel
            git
            mingw-w64-x86_64-toolchain

      - name: Restore Nim DLLs dependencies (Windows) from cache
        if: runner.os == 'Windows'
        id: windows-dlls-cache
        uses: actions/cache@v4
        with:
          path: external/dlls
          key: 'dlls'

      - name: Install DLLs dependencies (Windows)
        if: >
          steps.windows-dlls-cache.outputs.cache-hit != 'true' &&
          runner.os == 'Windows'
        run: |
          mkdir external
          curl -L "https://nim-lang.org/download/windeps.zip" -o external/windeps.zip
          7z x -y external/windeps.zip -oexternal/dlls

      - name: Path to cached dependencies (Windows)
        if: >
          runner.os == 'Windows'
        run: |
          echo "${{ github.workspace }}/external/dlls" >> $GITHUB_PATH

      - name: Derive environment variables
        run: |
          if [[ '${{ matrix.target.cpu }}' == 'amd64' ]]; then
            ARCH=64
            PLATFORM=x64
          elif [[ '${{ matrix.target.cpu }}' == 'arm64' ]]; then
            ARCH=64
            PLATFORM=arm64
          else
            ARCH=32
            PLATFORM=x86
          fi
          echo "ARCH=$ARCH" >> $GITHUB_ENV
          echo "PLATFORM=$PLATFORM" >> $GITHUB_ENV

          if [[ '${{ matrix.target.os }}' == 'windows' ]]; then
            MAKE_CMD="mingw32-make"
          else
            MAKE_CMD="make"
          fi
          echo "MAKE_CMD=$MAKE_CMD" >> $GITHUB_ENV

          ncpu=
          case '${{ runner.os }}' in
          'Linux')
            ncpu=$(nproc)
            ;;
          'macOS')
            ncpu=$(sysctl -n hw.ncpu)
            ;;
          'Windows')
            ncpu=$NUMBER_OF_PROCESSORS
            ;;
          esac
          [[ -z "$ncpu" || $ncpu -le 0 ]] && ncpu=1
          echo "ncpu=$ncpu" >> $GITHUB_ENV

      - name: Build the Nim compiler
        run: |
          curl -O -L -s -S https://raw.githubusercontent.com/status-im/nimbus-build-system/master/scripts/build_nim.sh
          env MAKE="${MAKE_CMD} -j${ncpu}" ARCH_OVERRIDE=${PLATFORM} NIM_COMMIT=${{ matrix.branch }} \
            QUICK_AND_DIRTY_COMPILER=1 CC=gcc \
            bash build_nim.sh nim csources dist/nimble NimBinaries
          echo '${{ github.workspace }}/nim/bin' >> $GITHUB_PATH

      - name: Use gcc 14
        # Should be removed when ubuntu-latest is 26.04
        if : ${{ matrix.target.os == 'linux-gcc-14' }}
        run: |
          # Add GCC-14 to alternatives
          sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-14 14
          # Set GCC-14 as the default
          sudo update-alternatives --set gcc /usr/bin/gcc-14

      - name: Run tests
        run: |
          nim --version
          gcc --version
          env TEST_LANG="c" NIMFLAGS="${NIMFLAGS} --mm:refc" nim test
          env TEST_LANG="cpp" NIMFLAGS="${NIMFLAGS} --mm:refc" nim test
          env TEST_LANG="c" NIMFLAGS="${NIMFLAGS} --mm:orc" nim test
          env TEST_LANG="cpp" NIMFLAGS="${NIMFLAGS} --mm:orc" nim test