name: "Emu third-party dependencies (Linux)"

on:
  workflow_call:
    # needed since it allows this to become a reusable workflow
  workflow_dispatch:
    # allows manual trigger

permissions:
  contents: "write"

env:
  PREMAKE_ACTION: "gmake2"
  DEPS_CACHE_KEY: "emu-deps-linux"
  DEPS_CACHE_DIR: "build/deps/linux"

  PACKAGE_BASE_DIR: "build/package/linux"
  THIRD_PARTY_BASE_DIR: "third-party"

jobs:
  deps-build:
    runs-on: "ubuntu-20.04"
    if: ${{ !cancelled() }}

    steps:
      - name: "Lookup cache for deps"
        id: "emu-deps-cache-step"
        uses: actions/cache@v4
        with:
          key: "${{ env.DEPS_CACHE_KEY }}-${{ env.PREMAKE_ACTION }}"
          path: "${{ env.DEPS_CACHE_DIR }}/${{ env.PREMAKE_ACTION }}"

      # we need branch because it has build scripts
      - name: "Checkout branch"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        uses: actions/checkout@v4

      - name: "Clone third-party deps (common/linux)"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          ref: "third-party/common/linux"
          path: "${{env.THIRD_PARTY_BASE_DIR}}/common/linux"

      - name: "Clone third-party deps (deps/linux)"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          ref: "third-party/deps/linux"
          path: "${{env.THIRD_PARTY_BASE_DIR}}/deps/linux"

      - name: "Clone third-party deps (deps/common)"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        uses: actions/checkout@v4
        with:
          ref: "third-party/deps/common"
          path: "${{env.THIRD_PARTY_BASE_DIR}}/deps/common"

      # fix folder permissions! not sure why this fails
      # nested subdirs "build/linux/release" cause permission problems
      - name: "Give all permissions to repo folder"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        shell: "bash"
        working-directory: "${{ github.workspace }}"
        run: sudo chmod -R 777 "${{ github.workspace }}"

      # mandatory Linux packages
      - name: "Install required packages"
        shell: "bash"
        run: |
          sudo dpkg --add-architecture i386
          sudo apt update -y
          sudo apt install -y coreutils # echo, printf, etc...
          sudo apt install -y build-essential
          sudo apt install -y gcc-multilib # needed for 32-bit builds
          sudo apt install -y g++-multilib
          # sudo apt install -y clang
          sudo apt install -y libglx-dev # needed for overlay build (header files such as GL/glx.h)
          sudo apt install -y libgl-dev # needed for overlay build (header files such as GL/gl.h)
          sudo apt install -y libx11-dev:i386 # needed for overlay build
          # sudo apt install -y binutils # (optional) contains the tool 'readelf' mainly, and other usefull binary stuff

      - name: "Build deps"
        if: steps.emu-deps-cache-step.outputs.cache-hit != 'true'
        shell: "bash"
        working-directory: "${{ github.workspace }}"
        run: |
          export CMAKE_GENERATOR="Unix Makefiles"
          sudo chmod 777 ./${{env.THIRD_PARTY_BASE_DIR}}/common/linux/premake/premake5
          ./${{env.THIRD_PARTY_BASE_DIR}}/common/linux/premake/premake5 --file=premake5-deps.lua --64-build --32-build --all-ext --all-build --j=2 --verbose --clean --os=linux gmake2