name: Compilation Check

on:
  pull_request:
    branches:
      - master

jobs:
  build:
    name: Compare
    runs-on: ubuntu-20.04
    timeout-minutes: 60

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          ref: master

      - name: Install Package Dependencies
        run: |
          sudo apt update
          sudo apt install build-essential cmake \
            clang gcc g++ lcov make nasm libxrandr-dev \
            libxinerama-dev libxcursor-dev libpulse-dev \
            libxi-dev zip ninja-build libgl1-mesa-dev libssl-dev

      - name: Setup sccache
        uses: hendrikmuhs/ccache-action@v1.2.13
        with:
          variant: sccache
          key: linux-ubuntu-20.04--Release-linux-clang-asan-${{ github.sha }}
          restore-keys: linux-ubuntu-20.04--Release-linux-clang-asan
          max-size: 1000M

      - name: CMake Generation (master)
        env:
          CC: clang
          CXX: clang++
        run: |
          cmake -B build --preset=Release-linux-clang-asan \
            -DCMAKE_C_COMPILER_LAUNCHER=sccache \
            -DCMAKE_CXX_COMPILER_LAUNCHER=sccache

      - name: Build goalc (master)
        run: cmake --build build --parallel $((`nproc`)) --target goalc

      - name: Compile and preserve (master)
        run: |
          ./build/goalc/goalc --game jak1 --cmd "(make-group \"all-code\")"
          ./build/goalc/goalc --game jak2 --cmd "(make-group \"all-code\")"
          ./build/goalc/goalc --game jak3 --cmd "(make-group \"all-code\")"
          mv ./out/jak1/obj ./out/jak1/obj.master
          mv ./out/jak2/obj ./out/jak2/obj.master
          mv ./out/jak3/obj ./out/jak3/obj.master

      - name: Checkout PR
        uses: actions/checkout@v4
        with:
          clean: "false"

      - name: CMake Generation (PR)
        env:
          CC: clang
          CXX: clang++
        run: |
          cmake -B build --preset=Release-linux-clang-asan \
            -DCMAKE_C_COMPILER_LAUNCHER=sccache \
            -DCMAKE_CXX_COMPILER_LAUNCHER=sccache

      - name: Build goalc (PR)
        run: cmake --build build --parallel $((`nproc`)) --target goalc

      - name: Compile and preserve (PR)
        run: |
          ./build/goalc/goalc --game jak1 --cmd "(make-group \"all-code\")"
          ./build/goalc/goalc --game jak2 --cmd "(make-group \"all-code\")"
          ./build/goalc/goalc --game jak3 --cmd "(make-group \"all-code\")"
          mv ./out/jak1/obj ./out/jak1/obj.pr
          mv ./out/jak2/obj ./out/jak2/obj.pr
          mv ./out/jak3/obj ./out/jak3/obj.pr

      - name: Compare Results and Produce Report
        run: |
          ls -l ./out/jak1
          ls -l ./out/jak2
          ls -l ./out/jak3
          set +e
          python ./scripts/gsrc/compare-compilation-outputs.py --base "./out/jak1/obj.master,./out/jak2/obj.master,./out/jak3/obj.master" --compare "./out/jak1/obj.pr,./out/jak2/obj.pr,./out/jak3/obj.pr" --markdown
          SCRIPT_EXIT_CODE=$?
          cat ./comp-diff-report.md >> $GITHUB_STEP_SUMMARY
          if [ "$SCRIPT_EXIT_CODE" -ne 0 ]; then
            exit 1
          fi