name: Build and Package Firmware

on:
  push:
    tags:
      - 'v*'

jobs:
  build:
    runs-on: ubuntu-latest
    container: espressif/idf:v5.2.1
    permissions:
      contents: write

    steps:
      - name: Install Modern Node.js and jq (Gitea Compatibility)
        run: apt-get update && apt-get install -y ca-certificates curl gnupg jq && curl -fsSL https://deb.nodesource.com/setup_20.x | bash - && apt-get install -y nodejs

      - name: Checkout Repository
        uses: actions/checkout@v4
        with:
          submodules: recursive

      - name: Configure Safe Directory
        run: git config --global --add safe.directory "*"

      - name: Set Version Identifier
        run: |
          TAG=${GITHUB_REF#refs/tags/}
          echo "TAG=$TAG" >> $GITHUB_ENV
          echo "$TAG" > version.txt
          echo "Build version (tag): $TAG"

      - name: Build and Run Host Unit Tests
        run: . $IDF_PATH/export.sh && cmake -S tests -B tests/build && cmake --build tests/build && ./tests/build/test_decoder

      - name: Build Firmware
        run: . $IDF_PATH/export.sh && idf.py build

      - name: Create Flashing Instructions Document
        run: |
          mkdir -p dist && cat << 'EOF' > dist/README_FLASHING.txt
          ESP32 ALDL Bridge Firmware Flash Instructions
          =============================================

          Prerequisites:
          - Python 3 installed
          - esptool installed: pip install esptool

          Connect your ESP32 to your PC, identify its serial port, and run the following command to flash:

          esptool.py --chip esp32 -b 460800 --before default_reset --after hard_reset write_flash --flash_mode dio --flash_size 2MB --flash_freq 40m 0x1000 bootloader.bin 0x8000 partition-table.bin 0x10000 esp32-aldl.bin
          EOF

      - name: Stage Firmware Binaries
        run: cp build/esp32-aldl.bin dist/ && cp build/bootloader/bootloader.bin dist/ && cp build/partition_table/partition-table.bin dist/

      - name: Package Release
        run: |
          echo "Packaging with TAG: $TAG"
          tar -czvf "esp32-aldl-${TAG}.tar.gz" -C dist .

      - name: Upload Firmware Package
        uses: actions/upload-artifact@v4
        with:
          name: esp32-aldl-firmware-${{ github.sha }}
          path: esp32-aldl-*.tar.gz
          if-no-files-found: error

      - name: Create Release and Upload Asset
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
          API_URL: ${{ github.api_url }}
          REPO: ${{ github.repository }}
          TAG: ${{ env.TAG }}
        run: |
          FILE="esp32-aldl-${TAG}.tar.gz"
          NAME="${TAG}"
          echo "Creating release with FILE: $FILE, NAME: $NAME"

          # 1. Create the release
          RESP=$(curl -s -H "Authorization: token $TOKEN" \
            -H "Content-Type: application/json" \
            -d "{\"tag_name\":\"$TAG\",\"name\":\"$NAME\",\"body\":\"Release $TAG\"}" \
            "$API_URL/repos/$REPO/releases")

          # 2. Extract upload endpoint
          UPLOAD_URL=$(echo "$RESP" | jq -r '.upload_url // empty')
          RELEASE_ID=$(echo "$RESP" | jq -r '.id // empty')

          # 3. Upload asset
          if [ -n "$UPLOAD_URL" ]; then
            # GitHub style (upload_url contains {?name,label})
            UPLOAD_URL="${UPLOAD_URL%\{?name,label\}}"
            curl -s -H "Authorization: token $TOKEN" \
              -H "Content-Type: application/gzip" \
              --data-binary @$FILE \
              "${UPLOAD_URL}?name=${FILE}"
          elif [ -n "$RELEASE_ID" ]; then
            # Gitea style (POST to /releases/{id}/assets)
            curl -s -H "Authorization: token $TOKEN" \
              -H "Content-Type: application/gzip" \
              --data-binary @$FILE \
              "$API_URL/repos/$REPO/releases/$RELEASE_ID/assets?name=${FILE}"
          else
            echo "Failed to create release"
            echo "$RESP"
            exit 1
          fi