# This file is a part of the UMSKT Project
#
# Copyleft (C) 2019-2023 UMSKT Contributors (et.al.)
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
# @FileCreated by Neo on 06/19/2023
# @Maintainer Neo

name: C/C++ CI (DOS DJGPP)

on:
  push:
    branches: [ "*" ]
    paths-ignore: [ '**.md', 'doc/**', '.idea/**'] # If only these files are edited, skip
  workflow_dispatch:

env:
  CC: ${{ github.workspace }}/djgpp/bin/i586-pc-msdosdjgpp-gcc
  CXX: ${{ github.workspace }}/djgpp/bin/i586-pc-msdosdjgpp-g++
  CMAKE_FIND_ROOT_PATH: ${{ github.workspace }}/djgpp
  WATT_ROOT: ${{ github.workspace }}/djgpp/watt32

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout Source Tree
        uses: actions/checkout@v4

      - name: Setup build environment
        run: |
          sudo apt -y update
          sudo apt -y install build-essential cmake wget 7zip git flex libfl-dev nasm libslang2-dev pkg-config libslang2-modules gcc-multilib dosbox tree

      - name: Download and Setup DJGPP Toolchain
        run: |
          pushd ${{ github.workspace }}
          wget https://github.com/andrewwutw/build-djgpp/releases/download/v3.4/djgpp-linux64-gcc1220.tar.bz2
          tar xjf djgpp-linux64-gcc1220.tar.bz2
          cd ${{ github.workspace }}/djgpp
          tree . -S
          git clone https://github.com/UMSKT/Watt-32.git watt32
          cd watt32/util
          make clean && make linux
          cd ../src
          source ${{ github.workspace }}/djgpp/setenv
          ./configur.sh djgpp
          make -f djgpp.mak
          ln -s ${WATT_ROOT}/lib/libwatt.a ${{ github.workspace }}/djgpp/lib

      - name: Cache OpenSSL 3.1.2
        uses: actions/cache/restore@v4
        id: cache-openssl
        with:
          path: |
            ${{ github.workspace }}/djgpp
          key: openssl-3.1.2-${{ hashFiles('**/CMakeLists.txt') }}

      - name: Checkout and Cross Compile OpenSSL 3.1.2
        if: steps.cache-openssl.outputs.cache-hit != 'true'
        run: |
          git clone https://github.com/UMSKT/openssl.git openssl
          pushd openssl
          source ${{ github.workspace }}/djgpp/setenv
          ./Configure 386 no-threads no-tests no-sse2 no-asm -DOPENSSL_DEV_NO_ATOMICS -mno-mmx -mno-sse -mno-sse2 -march=i386 --prefix=${{ github.workspace }}/djgpp DJGPP
          make && make install_sw
          popd

      - name: Save OpenSSL 3.1.2
        if: steps.cache-openssl.outputs.cache-hit != 'true'
        uses: actions/cache/save@v4
        with:
          path: |
            ${{ github.workspace }}/djgpp
          key: openssl-3.1.2-${{ hashFiles('**/CMakeLists.txt') }}
          
      - name: Download stub
        run: |
          wget https://web.archive.org/web/20250308092209/https://www.ibiblio.org/pub/micro/pc-stuff/freedos/files/util/system/cwsdpmi/csdpmi7b.zip -O CSDPMI7B.ZIP
          mkdir /home/runner/dpmibin
          7z e CSDPMI7B.ZIP bin/CWSDSTUB.EXE -o/home/runner/dpmibin
          
      - name: Build
        run: |
          source ${{ github.workspace }}/djgpp/setenv
          pushd build
          cmake ../ -D DJGPP_WATT32=${WATT_ROOT}/lib/libwatt.a -D CMAKE_FIND_ROOT_PATH=${CMAKE_FIND_ROOT_PATH} -D CWSDSTUB_LOCATION=/home/runner/dpmibin/CWSDSTUB.EXE -D DJGPP_BIN_LOCATION=/home/runner/work/UMSKT/UMSKT/djgpp/i586-pc-msdosdjgpp/bin
          make

      - name: Setup DOSBox test environment
        run: |
          mkdir -p dosbox_test
          cp build/umskt.exe dosbox_test/
          # Download DPMI server directly
          # wget https://github.com/UMSKT/winactiontest/raw/refs/heads/main/CWSDPMI.EXE -O dosbox_test/CWSDPMI.EXE
          # Create test batch file
          cat > dosbox_test/test.bat << EOL
          @echo off
          echo Running test 1...
          umskt.exe -b 2C -c 365 -s 069420 > TEST1.TXT
          if errorlevel 1 goto error
          echo Running test 2...
          umskt.exe -i 253286028742154311079061239762245184619981623171292574 > TEST2.TXT
          if errorlevel 1 goto error
          echo Tests completed > DONE.TXT
          goto end
          :error
          echo Test failed > ERROR.TXT
          :end
          exit
          EOL
          # Create DOSBox configuration
          cat > dosbox_test/dosbox.conf << EOL
          [sdl]
          nosound=true
          [cpu]
          core=dynamic
          cycles=max
          [autoexec]
          mount c .
          c:
          test.bat
          exit
          EOL

      - name: Run tests in DOSBox
        run: |
          cd dosbox_test
          timeout 30s dosbox -conf dosbox.conf -nogui -exit
          # Check if the test completed successfully
          if [ ! -f DONE.TXT ]; then
            echo "Tests did not complete successfully"
            if [ -f ERROR.TXT ]; then
              echo "Test execution failed"
            fi
            if [ -f TEST1.TXT ]; then
              echo "Test 1 output:"
              cat TEST1.TXT
            fi
            if [ -f TEST2.TXT ]; then
              echo "Test 2 output:"
              cat TEST2.TXT
            fi
            exit 1
          fi
          # Verify test outputs
          if [ ! -f TEST1.TXT ] || [ ! -f TEST2.TXT ]; then
            echo "Test output files missing"
            exit 1
          fi
          # Check test results - looking for key format patterns
          if ! grep -qE '[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}-[A-Z0-9]{5}' TEST1.TXT || \
             ! grep -qE '[0-9]{6}-[0-9]{6}-[0-9]{6}-[0-9]{6}-[0-9]{6}-[0-9]{6}-[0-9]{6}' TEST2.TXT; then
            echo "Tests failed - unexpected output format"
            echo "Test 1 output:"
            cat TEST1.TXT
            echo "Test 2 output:"
            cat TEST2.TXT
            exit 1
          else
            echo "All tests passed successfully"
            echo "Test 1 output:"
            cat TEST1.TXT
            echo "Test 2 output:"
            cat TEST2.TXT
          fi

      - name: Move executable to upload directory
        run: |
          mkdir build/actions_upload
          mv build/umskt.exe build/actions_upload/

      - name: Upload build artifact
        uses: actions/upload-artifact@v4.6.2
        with:
          name: UMSKT-DOS-x86
          path: build/actions_upload