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: Prepare direct OTA files
        run: |
          set -eu
          rm -rf dist/ota
          project_name="${GITHUB_REPOSITORY#*/}"
          project_name="${project_name#PlatformIO_}"
          timestamp="$(date -u +%Y-%m-%dT%H-%M-%SZ)"
          mkdir -p dist/ota
          found=0
          for fw in .pio/build/*/firmware.bin .pio/build/*/firmware.hex; do
            [ -f "$fw" ] || continue
            env_name="$(basename "$(dirname "$fw")")"
            ext="${fw##*.}"
            cp "$fw" "dist/ota/${project_name}_${env_name}_${timestamp}.${ext}"
            found=1
          done
          if [ "$found" -eq 0 ]; then
            echo 'No firmware.bin or firmware.hex artifacts were produced.' >&2
            exit 1
          fi
          find dist/ota -maxdepth 1 -type f | sort

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