name: Automatic Build

permissions:
  actions: write

on:
  push:
    branches:
      - "main"
    paths:
      - "src/**"
      - "CMakeLists.txt"
      - ".github/workflows/build.yml"
  pull_request:
    paths:
      - "src/**"
      - "CMakeLists.txt"
      - ".github/workflows/build.yml"

concurrency:
  group: ${{ github.workflow }}-${{ github.ref_name }}
  cancel-in-progress: true

jobs:
  build:
    strategy:
      matrix:
        include:
          - name: linux
            runner: ubuntu-latest
            dependencies: libboost-dev libboost-regex-dev libboost-json-dev libhunspell-dev build-essential cmake libgtk-3-dev libcurl4-openssl-dev
            wx_version: v3.3.1
            # the amount of cores on runners can be found here:
            # https://docs.github.com/en/actions/reference/runners/github-hosted-runners#standard-github-hosted-runners-for-public-repositories
            cores: 4

    name: ${{matrix.name}} build
    runs-on: ${{matrix.runner}}
    env:
      CCACHE_DIR: ${{github.workspace}}/ccache/${{matrix.name}}
      CCACHE_SIZE: 1G
      WXWIDGETS_DIR: ${{github.workspace}}/wxwidgets/${{matrix.name}}
      CORES: ${{matrix.cores}}

    steps:
      - name: install deps
        shell: bash
        env:
          DEPS: ${{matrix.dependencies}}
        run: |
          sudo apt-get update
          sudo apt-get install -y --no-install-recommends ccache $DEPS

      - name: get wxwidgets cache
        id: wxwidgets-cache
        uses: actions/cache/restore@v5
        with:
          path: ${{env.WXWIDGETS_DIR}}
          key: wxwidgets-${{matrix.wx_version}}-${{matrix.name}}
          restore-keys: wxwidgets-${{matrix.wx_version}}-${{matrix.name}}

      - name: checkout wxwidgets ${{matrix.wx_version}}
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        uses: actions/checkout@v6
        with:
          repository: wxWidgets/wxWidgets
          ref: ${{matrix.wx_version}}
          path: wxWidgets

      - name: compile wxwidgets
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        shell: bash
        run: |
          cd wxWidgets
          echo "::group::submodules"
          git submodule update --init src/expat src/stc/scintilla src/stc/lexilla 3rdparty/catch 3rdparty/nanosvg 3rdparty/libwebp
          echo "::endgroup::"
          mkdir buildgtk
          cd buildgtk
          mkdir -p $WXWIDGETS_DIR
          echo "::group::cmake"
          cmake .. -DCMAKE_INSTALL_PREFIX=$WXWIDGETS_DIR
          echo "::endgroup::"
          echo "::group::compile"
          make -j $CORES
          echo "::endgroup::"
          echo "::group::install to $WXWIDGETS_DIR"
          make install
          echo "::endgroup::"

      - name: upload wxwidgets cache
        if: steps.wxwidgets-cache.outputs.cache-hit != 'true'
        uses: actions/cache/save@v5
        with:
          path: ${{env.WXWIDGETS_DIR}}
          key: ${{steps.wxwidgets-cache.outputs.cache-primary-key}}

      - name: get ccache
        id: ccache
        uses: actions/cache/restore@v5
        with:
          path: ${{env.CCACHE_DIR}}
          key: ccache-${{matrix.name}}-${{github.ref_name}}
          restore-keys: ccache-${{matrix.name}}-

      - name: checkout
        uses: actions/checkout@v6
        with:
          path: project

      - name: compile
        shell: bash
        run: |
          cd project
          mkdir build
          cd build
          wxcmake="$WXWIDGETS_DIR/lib/cmake/wxWidgets"
          echo "::group::cmake"
          cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="$wxcmake" -DCMAKE_CXX_COMPILER_LAUNCHER=ccache
          echo "::endgroup::"
          echo "::group::ccache stats"
          ccache --max-size "$CCACHE_SIZE"
          echo "ccache dir is at $CCACHE_DIR"
          ccache --show-stats --verbose
          echo "::endgroup::"
          echo "::group::compile"
          make -j $CORES
          echo "::endgroup::"
          echo "::group::ccache stats after"
          ccache --show-stats --verbose
          echo "::endgroup::"

      - name: delete old ccache to save space
        if: github.ref == 'refs/heads/main' && steps.ccache.outputs.cache-hit == 'true'
        env:
          GH_TOKEN: ${{github.token}}
          REPO: ${{github.repository}}
          KEY: ${{steps.ccache.outputs.cache-primary-key}}
        run: |
          gh cache delete --repo "$REPO" "$KEY"

      - name: upload new ccache
        if: github.ref == 'refs/heads/main'
        uses: actions/cache/save@v5
        with:
          path: ${{env.CCACHE_DIR}}
          key: ${{steps.ccache.outputs.cache-primary-key}}