name: Release

on:
  push:
    branches:
      - main
    tags:
      - '[0-9]*.[0-9]*.[0-9]*'
  release:
    types:
      - published

permissions:
  contents: write

jobs:
  bump-version-tag:
    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
    runs-on: ubuntu-latest

    steps:
      - name: Check out repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Tag next patch version
        run: |
          set -eu
          git fetch --force --tags origin
          SEMVER_RE='^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$'

          if git tag --points-at "$GITHUB_SHA" | grep -Eq "$SEMVER_RE"; then
            echo "semver tag already exists on this commit; skipping bump"
            echo "Tag already present on ${GITHUB_SHA}; release build runs from the tag event." >> "$GITHUB_STEP_SUMMARY"
            exit 0
          fi

          LAST="$(
            git tag --list \
              | grep -E "$SEMVER_RE" \
              | sort -V \
              | tail -n1 || true
          )"

          if [ -z "$LAST" ]; then
            # Seed semver history at the requested public baseline.
            NEXT="0.9.1"
          else
            MAJOR="${LAST%%.*}"
            REST="${LAST#*.}"
            MINOR="${REST%%.*}"
            PATCH="${LAST##*.}"
            NEXT="${MAJOR}.${MINOR}.$((PATCH + 1))"
          fi

          git tag "$NEXT" "$GITHUB_SHA"
          git push origin "$NEXT"

  build-release:
    if: github.event_name == 'release' || (github.event_name == 'push' && startsWith(github.ref, 'refs/tags/'))
    runs-on: ubuntu-latest
    env:
      SEMVER_RE: '^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$'

    steps:
      - name: Check out repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - name: Validate pushed tag is semver
        if: github.event_name == 'push'
        run: |
          echo "${GITHUB_REF_NAME}" | grep -Eq "${SEMVER_RE}"

      - name: Resolve release version
        id: release_version
        run: |
          if [ "${{ github.event_name }}" = "release" ]; then
            VERSION="${{ github.event.release.tag_name }}"
          else
            VERSION="${GITHUB_REF_NAME}"
          fi
          echo "version=$VERSION" >> "$GITHUB_OUTPUT"

      - name: Set up Arduino CLI
        uses: arduino/setup-arduino-cli@v2

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: Install adafruit-nrfutil
        run: pip install adafruit-nrfutil

      - name: Install Adafruit nRF52 core
        run: |
          arduino-cli config init --overwrite
          arduino-cli config set board_manager.additional_urls https://adafruit.github.io/arduino-board-index/package_adafruit_index.json
          arduino-cli core update-index
          arduino-cli core install adafruit:nrf52

      - name: Generate version header
        env:
          OPK_BUILD_VERSION: ${{ steps.release_version.outputs.version }}
        run: ./gen_version.sh

      - name: Compile OpenPuck
        run: |
          mkdir -p build/openpuck build/cache/openpuck
          arduino-cli compile \
            -b adafruit:nrf52:feather52840 \
            --clean \
            --build-path build/cache/openpuck \
            --output-dir build/openpuck \
            --build-property "build.extra_flags=-DNRF52840_XXAA {build.flags.usb} -DCFG_TUD_HID=4 -DCFG_TUD_TASK_QUEUE_SZ=64 -DCFG_TUD_VENDOR_TX_BUFSIZE=256" \
            OpenPuck

      - name: Generate UF2 (standard)
        run: ./gen_uf2.sh build/openpuck/OpenPuck.ino.hex build/openpuck/OpenPuck.ino.uf2

      - name: Compile ReversePuckFirmware
        run: |
          mkdir -p build/reversepuck build/cache/reversepuck
          arduino-cli compile \
            -b adafruit:nrf52:feather52840 \
            --clean \
            --build-path build/cache/reversepuck \
            --output-dir build/reversepuck \
            --build-property "build.extra_flags=-DNRF52840_XXAA {build.flags.usb}" \
            ReversePuckFirmware

      - name: Generate UF2 (ReversePuckFirmware)
        run: ./gen_uf2.sh build/reversepuck/ReversePuckFirmware.ino.hex build/reversepuck/ReversePuckFirmware.ino.uf2

      - name: Compile recovery build
        run: |
          mkdir -p build/openpuck-recovery build/cache/openpuck-recovery
          arduino-cli compile \
            -b adafruit:nrf52:feather52840 \
            --clean \
            --build-path build/cache/openpuck-recovery \
            --output-dir build/openpuck-recovery \
            --build-property "build.extra_flags=-DNRF52840_XXAA {build.flags.usb} -DCFG_TUD_HID=4 -DCFG_TUD_TASK_QUEUE_SZ=64 -DCFG_TUD_VENDOR_TX_BUFSIZE=256 -DOPK_FACTORY_RESET=1" \
            OpenPuck

      - name: Generate UF2 (recovery)
        run: ./gen_uf2.sh build/openpuck-recovery/OpenPuck.ino.hex build/openpuck-recovery/OpenPuck.ino.uf2

      - name: Collect artifacts
        env:
          VERSION: ${{ steps.release_version.outputs.version }}
        run: |
          mkdir -p release_assets

          find build/openpuck build/openpuck-recovery \
            -maxdepth 1 -type f \
            \( -name '*.uf2' -o -name '*.hex' \) \
            -print | while read -r f; do
            # Keep only the extension; the arduino base name (OpenPuck.ino.*)
            # is redundant once we prefix with OpenPuck-<version>-<flavor>.
            ext="${f##*.}"
            dir="$(basename "$(dirname "$f")")"
            if [ "$dir" = "openpuck-recovery" ]; then
              flavor="factory-reset"
            else
              flavor="standard"
            fi
            cp "$f" "release_assets/OpenPuck-${VERSION}-${flavor}.${ext}"
          done

          find build/reversepuck \
            -maxdepth 1 -type f \
            \( -name '*.uf2' -o -name '*.hex' \) \
            -print | while read -r f; do
            ext="${f##*.}"
            cp "$f" "release_assets/ReversePuckFirmware-${VERSION}.${ext}"
          done
          test -n "$(find release_assets -maxdepth 1 -type f -print -quit)"
          ls -la release_assets

      - name: Create GitHub Release
        uses: softprops/action-gh-release@v2
        with:
          tag_name: ${{ steps.release_version.outputs.version }}
          name: ${{ format('OpenPuck {0}', steps.release_version.outputs.version) }}
          prerelease: false
          files: release_assets/*
          body: |
            OpenPuck Firmware Release

            Version: ${{ steps.release_version.outputs.version }}
            Commit: ${{ github.sha }}

            ### Files included:

            - `OpenPuck-*-standard.*` — puck firmware (standard)
            - `OpenPuck-*-factory-reset.*` — puck firmware (factory reset)
            - `ReversePuckFirmware-*.*` — reverse-puck firmware (controller emulator)
            - `.uf2` files for drag-and-drop flashing (BOOT/UF2 drive)
            - `.hex` files for direct flashing workflows
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}