name: release

on:
  push:
    tags:
      - 'v*'

permissions:
  contents: write

concurrency:
  group: release-${{ github.ref_name }}
  cancel-in-progress: false

jobs:
  release:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 0

      - uses: actions/setup-python@v5
        with:
          python-version: '3.x'

      - name: Unit tests
        run: python3 tests/test_gsmtap.py

      - name: Verify tag matches pd.py VERSION
        shell: bash
        run: |
          set -euo pipefail
          version=$(sed -n "s/^VERSION = '\([0-9][0-9.]*\)'.*/\1/p" pd.py)
          if [ -z "$version" ]; then
            echo "::error::cannot read VERSION from pd.py"
            exit 1
          fi
          if [ "$GITHUB_REF_NAME" != "v$version" ]; then
            echo "::error::tag $GITHUB_REF_NAME does not match pd.py VERSION '$version'"
            exit 1
          fi
          echo "tag $GITHUB_REF_NAME matches pd.py VERSION $version"

      - name: Build release archives
        run: ./tools/build_release.sh "$GITHUB_REF_NAME"

      - name: Write the install notes
        shell: bash
        run: |
          set -euo pipefail
          version=$(sed -n "s/^VERSION = '\([0-9][0-9.]*\)'.*/\1/p" pd.py)
          notes="$RUNNER_TEMP/release-notes.md"
          cat > "$notes" <<'EOF'
          Runtime release - the decoder, setup/start scripts, docs and README
          images; no git history and no development files.

          **Install - release package (recommended)**
          - Linux: `sigrok_iso7816_stream-<VERSION>.tar.gz`
          - Windows: `sigrok_iso7816_stream-<VERSION>.zip`

          Extract the archive, then run `./setup.sh` + `./start.sh` (Linux) or
          `setup.bat` + `start.bat` (Windows).  `SHA256SUMS` (attached) verifies
          both downloads.  Requires sigrok-cli and the FX2 firmware; see the
          README *Installation* section for the full prerequisites.

          **Install - source checkout (development)**
          `git clone https://github.com/anttro/sigrok_iso7816_stream.git`, then
          the same setup/start scripts.  The clone adds `tests/`, the baseline
          tools and the (local-only) example traces; the release package is the
          runtime tree.
          EOF
          sed -i "s/<VERSION>/$version/g" "$notes"

      - name: Create or update the GitHub release
        shell: bash
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          set -euo pipefail
          version=$(sed -n "s/^VERSION = '\([0-9][0-9.]*\)'.*/\1/p" pd.py)
          notes="$RUNNER_TEMP/release-notes.md"
          # Upload into an existing release first.  If the release does not
          # exist yet, create it as a draft so the published release never
          # appears with a partial asset set.  The install notes are prepended
          # to GitHub's generated changelog.
          if ! gh release upload "$GITHUB_REF_NAME" dist/* --clobber; then
            gh release create "$GITHUB_REF_NAME" dist/* --draft \
              --title "sigrok_iso7816_stream $version" \
              --notes-file "$notes" --generate-notes
          fi
          # Publish a new draft and re-publish an existing one.
          gh release edit "$GITHUB_REF_NAME" --draft=false