name: Build PicoFly binaries

on:
  workflow_dispatch:

permissions:
  contents: write

jobs:
  build:
    runs-on: ubuntu-latest
    steps:
      - name: Install dependencies
        run: sudo apt-get update && sudo apt-get install -y gcc-arm-none-eabi libnewlib-arm-none-eabi build-essential
  
      - name: Checkout DefenderOfHyrule/usk
        uses: actions/checkout@v3
        with:
          repository: DefenderOfHyrule/usk
          path: usk
      
      - name: Checkout DefenderOfHyrule/busk
        uses: actions/checkout@v3
        with:
          repository: DefenderOfHyrule/busk
          path: busk

      - name: Checkout raspberrypi/pico-sdk
        uses: actions/checkout@v3
        with:
          repository: raspberrypi/pico-sdk
          path: pico-sdk
          submodules: recursive
          
      - name: Set PICO_SDK_PATH environment variable
        run: |
          echo "PICO_SDK_PATH=$GITHUB_WORKSPACE/pico-sdk" >> $GITHUB_ENV
      - name: Create symbolic link of pico_sdk_import.cmake in busk and usk sources
        run: |
          ln -s $PICO_SDK_PATH/external/pico_sdk_import.cmake $GITHUB_WORKSPACE/busk/pico_sdk_import.cmake
          ln -s $PICO_SDK_PATH/external/pico_sdk_import.cmake $GITHUB_WORKSPACE/usk/pico_sdk_import.cmake
      - name: Create 'generated' directory in usk source directory
        run: mkdir -p $GITHUB_WORKSPACE/usk/generated

      - name: Build busk
        run: | 
          # Backup and modify memmap_default.ld for busk build
          cp $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld.bak
          sed -i 's/RAM(rwx) : ORIGIN =  0x20000000, LENGTH = 256k/RAM(rwx) : ORIGIN = 0x20038000, LENGTH = 32k/g' $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
          mkdir -p $GITHUB_WORKSPACE/build/busk
          cd $GITHUB_WORKSPACE/build/busk
          cmake $GITHUB_WORKSPACE/busk
          make
          make clean
          cd $GITHUB_WORKSPACE
          # Restore original memmap_default.ld from backup
          rm -f $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
          mv $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld.bak $GITHUB_WORKSPACE/pico-sdk/src/rp2_common/pico_crt0/rp2040/memmap_default.ld
      
      - name: Build usk
        run: | 
          mkdir -p $GITHUB_WORKSPACE/build/usk
          cd $GITHUB_WORKSPACE/build/usk
          cmake $GITHUB_WORKSPACE/usk
          make
          make clean
          python3 $GITHUB_WORKSPACE/usk/prepare.py
          cd $GITHUB_WORKSPACE
      - name: Generate release tag
        id: tag
        run: |
          USK_VERSION_LO=$(sed -n 's/#define VER_LO \([0-9]*\)/\1/p' $GITHUB_WORKSPACE/usk/config.h)
          USK_VERSION_HI=$(sed -n 's/#define VER_HI \([0-9]*\)/\1/p' $GITHUB_WORKSPACE/usk/config.h)
          USK_VERSION=${USK_VERSION_HI}.${USK_VERSION_LO}
          RELEASE_TAG=PicoFly_${USK_VERSION}_$(date +"%Y.%m.%d_%H-%M")
          echo "release_tag=$RELEASE_TAG" >> $GITHUB_OUTPUT
          echo "release_tag=$RELEASE_TAG"
          
      - name: Create a release
        uses: softprops/action-gh-release@v1
        with:
          tag_name: ${{ steps.tag.outputs.release_tag }}
          files: |
            build/usk/firmware.uf2
            build/usk/update.bin