name: CI

on:
  push:
  pull_request:

jobs:
  # Primary native Linux build used for install artifacts.
  linux-ubuntu:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          submodules: true

      - name: Set up dependencies
        run: |
          sudo apt-get update && sudo apt-get install -y flex libfl-dev bison tcl-dev tcl-tclreadline libeigen3-dev ninja-build

      - name: Set up cudd-3.0.0
        run: |
          wget https://github.com/oscc-ip/artifact/releases/download/cudd-3.0.0/build.tar.gz
          mkdir -p cudd
          tar -zxvf build.tar.gz -Ccudd

      - name: Build
        run: |
          mkdir build
          cd build
          cmake .. -G Ninja -DCUDD_DIR=$(pwd)/../cudd -DCMAKE_INSTALL_PREFIX=$(pwd)/install -DCMAKE_BUILD_TYPE=Release
          cmake --build . --target all -- -j $(nproc)
          cmake --install .
          tar -zcvf build.tar.gz -Cinstall .

      - name: Test
        run: |
          cd test
          ./regression

      - name: Upload Artifacts
        uses: actions/upload-artifact@v7
        if: ${{ !cancelled() }}
        with:
          name: artifact-ubuntu
          path: |
            build/install/*
          retention-days: 1

      - name: Upload Test Result
        uses: actions/upload-artifact@v7
        if: ${{ !cancelled() }}
        with:
          name: result-ubuntu
          path: |
            test/results/*

  # CentOS 7 Docker: old platform still common in EDA environments.
  linux-centos:
    runs-on: ubuntu-latest
    timeout-minutes: 30
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          submodules: true

      - name: Build image
        run: docker build -f Dockerfile.centos7 --tag sta-centos7 .

      - name: Test in container
        run: |
          mkdir -p test/results
          docker run --rm \
            -v "$PWD/test/results:/OpenSTA/test/results" \
            --entrypoint /bin/bash sta-centos7 \
            -c "cd /OpenSTA/test && ./regression || (cat results/diffs && exit 1)"

      - name: Upload Test Result
        uses: actions/upload-artifact@v7
        if: ${{ !cancelled() }}
        with:
          name: result-centos7
          path: |
            test/results/*

  # Native macOS coverage via Brewfile.
  macos:
    runs-on: macos-latest
    timeout-minutes: 30
    steps:
      - name: Checkout
        uses: actions/checkout@v7
        with:
          submodules: true

      - name: Install dependencies
        run: brew bundle

      - name: Build
        run: |
          eval "$(/opt/homebrew/bin/brew shellenv)"
          export PATH="$(brew --prefix flex)/bin:$PATH"
          export PATH="$(brew --prefix bison)/bin:$PATH"
          export TCL_LIBRARY="$(brew --prefix tcl-tk@8)/lib/libtcl8.6.dylib"
          export TCL_INCLUDE_PATH="$(brew --prefix tcl-tk@8)/include/tcl-tk"
          export FLEX_INCLUDE_DIR="$(brew --prefix flex)/include"
          cmake -S . -B build \
            -D TCL_LIBRARY=$TCL_LIBRARY \
            -D TCL_INCLUDE_PATH=$TCL_INCLUDE_PATH \
            -D FLEX_INCLUDE_DIR=$FLEX_INCLUDE_DIR \
            -DCMAKE_BUILD_TYPE=Release
          cmake --build build -j "$(sysctl -n hw.ncpu)"

      - name: Test
        run: |
          cd test
          ./regression || (cat results/diffs && exit 1)

      - name: Upload Test Result
        uses: actions/upload-artifact@v7
        if: ${{ !cancelled() }}
        with:
          name: result-macos
          path: |
            test/results/*