name: GitHub Release

on:
  workflow_call:

jobs:
  create-release:
    runs-on: ubuntu-latest
    permissions:
      contents: write
    steps:
    - uses: actions/checkout@v4
    
    - name: Set up Python
      uses: actions/setup-python@v4
      with:
        python-version: '3.x'
    
    - name: Install PlatformIO
      run: |
        python -m pip install --upgrade pip
        pip install --upgrade platformio esptool
    
    - name: Build Firmware
      run: |
        pio run -e esp32dev_ota -t buildfs  # Build SPIFFS
        pio run -e esp32dev_ota            # Build firmware
        cp .pio/build/esp32dev_ota/firmware.bin .pio/build/esp32dev_ota/filaman.bin
        cp .pio/build/esp32dev_ota/spiffs.bin .pio/build/esp32dev_ota/filaman_spiffs.bin
        
    - name: Prepare binaries
      run: |
        cd .pio/build/esp32dev_ota
        
        # Create OTA binary (already has correct magic byte)
        cp firmware.bin filaman_ota.bin
        
        # Create a magic byte prepended binary for the bootloader
        echo -ne '\xE9' > bootloader_with_magic.bin
        cat bootloader.bin >> bootloader_with_magic.bin
        
        echo "Creating full binary with magic byte..."
        esptool.py --chip esp32 merge_bin \
          --fill-flash-size 4MB \
          --flash_mode dio \
          --flash_freq 40m \
          --flash_size 4MB \
          -o filaman_full.bin \
          0x0000 bootloader_with_magic.bin \
          0x8000 partitions.bin \
          0x10000 firmware.bin \
          0x3D0000 spiffs.bin
        
        # Verify magic bytes
        echo "Checking magic bytes:"
        echo "OTA binary first bytes:"
        hexdump -C -n 16 filaman_ota.bin
        echo "Full binary first bytes:"
        hexdump -C -n 16 filaman_full.bin
        
        # Verify file sizes
        echo "File sizes:"
        ls -lh *.bin
    
    - name: Get version from tag
      id: get_version
      run: |
        echo "VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_OUTPUT
      
    - name: Read CHANGELOG.md
      id: changelog
      run: |
        VERSION=${{ steps.get_version.outputs.VERSION }}
        CHANGELOG=$(awk "/## \\[$VERSION\\]/{p=1;print;next} /## \\[/{p=0} p" CHANGELOG.md)
        echo "CHANGES<<EOF" >> $GITHUB_OUTPUT
        echo "$CHANGELOG" >> $GITHUB_OUTPUT
        echo "EOF" >> $GITHUB_OUTPUT

    - name: Create GitHub Release
      env:
        GH_TOKEN: ${{ github.token }}
      run: |
        gh release create "${{ github.ref_name }}" \
          --title "Release ${{ steps.get_version.outputs.VERSION }}" \
          --notes "${{ steps.changelog.outputs.CHANGES }}" \
          .pio/build/esp32dev_ota/filaman_full.bin \
          .pio/build/esp32dev_ota/filaman_ota.bin \
          .pio/build/esp32dev_ota/filaman.bin \
          .pio/build/esp32dev_ota/filaman_spiffs.bin