name: OTA build

on:
  push:
    branches:
      - '**'
  workflow_dispatch:

jobs:
  build-ota:
    runs-on: ubuntu-latest
    timeout-minutes: 45
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.11'

      - name: Install PlatformIO
        run: |
          python -m pip install --upgrade pip
          pip install platformio

      - name: Build OTA firmware binaries
        run: pio run

      - name: Collect OTA artifacts
        run: |
          mkdir -p dist/ota
          find .pio/build -type f -name 'firmware.bin' -exec cp {} dist/ota/ \;
          count=$(find dist/ota -type f -name '*.bin' | wc -l)
          if [ "$count" -eq 0 ]; then
            echo 'No firmware.bin artifacts were produced.' >&2
            exit 1
          fi
          find dist/ota -maxdepth 1 -type f | sort

      - name: Upload OTA artifacts
        uses: actions/upload-artifact@v3
        with:
          name: ota-binaries
          path: dist/ota/*.bin
          if-no-files-found: error