name: Build

on:
  push:
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repo
        uses: actions/checkout@v4
        with:
          submodules: 'recursive'
      - name: esp-idf build
        uses: ./.gitea/actions/esp-idf-ci-action
        with:
          esp_idf_version: v6.0.2
          target: esp32c6

      - name: Package firmware
        if: startsWith(github.ref, 'refs/tags/')
        run: |
          set -euo pipefail
          NAME="firmware-${GITHUB_REF_NAME}"
          mkdir -p "release/${NAME}/build/bootloader" "release/${NAME}/build/partition_table"
          
          # Keep the build/ layout so "@flash_args" works after unzipping
          cp build/bootloader/bootloader.bin           "release/${NAME}/build/bootloader/"
          cp build/partition_table/partition-table.bin "release/${NAME}/build/partition_table/"
          cp "build/${PROJECT_BIN}"                    "release/${NAME}/build/"
          cp build/flash_args                          "release/${NAME}/build/"
          (cd release && zip -qr "${NAME}.zip" "${NAME}")
          
          # Standalone copies
          cp build/bootloader/bootloader.bin           release/
          cp build/partition_table/partition-table.bin release/
          cp "build/${PROJECT_BIN}"                    release/
          
          cat > release/notes.md <<EOF
          ## Flashing (${CHIP})
          
          Requires [esptool](https://github.com/espressif/esptool) (\`pip install esptool\`).
          
          **Option 1: with the individual files**
          
          \`\`\`
          python -m esptool --chip ${CHIP} -b 460800 --before default-reset --after hard-reset write-flash --flash-mode dio --flash-size 4MB --flash-freq 80m 0x0 build/bootloader/bootloader.bin 0x8000 build/partition_table/partition-table.bin 0x10000 build/${PROJECT_BIN}
          \`\`\`
          
          **Option 2: unzip \`${NAME}.zip\`, then from inside its \`build\` directory**
          
          \`\`\`
          python -m esptool --chip ${CHIP} -b 460800 --before default-reset --after hard-reset write-flash "@flash_args"
          \`\`\`
          EOF

      - name: Create release
        if: startsWith(github.ref, 'refs/tags/')
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ github.ref }}
          release_name: Release ${{ github.ref_name }}
          body_path: release/notes.md
          draft: false
          prerelease: true

      # actions/upload-release-asset relies on GitHub's templated upload_url, which Gitea
      # doesn't provide, so attach the files through Gitea's API. The release ID is looked
      # up by tag rather than taken from the step's outputs, because the old toolkit inside
      # actions/create-release may emit outputs in a format Gitea's runner doesn't parse.
      - name: Upload release assets
        if: startsWith(github.ref, 'refs/tags/')
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          API="${GITHUB_API_URL:-${GITHUB_SERVER_URL}/api/v1}/repos/${GITHUB_REPOSITORY}"
          
          RELEASE_ID=$(curl -fsS -H "Authorization: token ${TOKEN}" \
            "${API}/releases/tags/${GITHUB_REF_NAME}" | jq -r .id)
          
          for f in release/firmware-*.zip release/bootloader.bin release/partition-table.bin "release/${PROJECT_BIN}"; do
            echo "Uploading $(basename "$f")"
            curl -fsS -X POST "${API}/releases/${RELEASE_ID}/assets?name=$(basename "$f")" \
              -H "Authorization: token ${TOKEN}" \
              -F "attachment=@${f}" >/dev/null
          done