name: release
run-name: Release on push to main

# Builds a wheel + sdist and publishes a Gitea release v<version> on every push to
# main. The version comes from pyproject.toml (kept in lockstep with __version__, D19);
# if a release for that tag already exists, the job is a no-op — so bump the version
# (and CHANGELOG) to cut a new release.

on:
  push:
    branches: [main]

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/setup-python@v5
        with:
          python-version: "3.12"
      - name: Install (core only)
        run: python -m pip install -e .
      - name: Run tests
        run: python -m unittest discover -s tests -v

  release:
    needs: test          # don't publish a release if the tests fail
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Python
        uses: actions/setup-python@v5
        with:
          python-version: "3.12"

      - name: Build wheel + sdist
        run: |
          python -m pip install --upgrade build
          python -m build

      - name: Build self-extracting installer (.run)
        run: python packaging/make_run.py

      - name: Read version
        id: ver
        run: |
          V=$(python -c "import tomllib; print(tomllib.load(open('pyproject.toml','rb'))['project']['version'])")
          echo "version=$V" >> "$GITHUB_OUTPUT"

      - name: Build release notes
        run: |
          python - <<'PY'
          import json
          version = "${{ steps.ver.outputs.version }}"
          tag = f"v{version}"
          out, capturing = [], False
          try:
              for line in open("CHANGELOG.md", encoding="utf-8").read().splitlines():
                  if line.startswith("## "):
                      if capturing:
                          break
                      capturing = line.startswith(f"## [{version}]")
                      continue
                  if capturing:
                      out.append(line)
          except OSError:
              pass
          body = "\n".join(out).strip() or f"Release {tag}."
          payload = {"tag_name": tag, "target_commitish": "${{ github.sha }}", "name": tag, "body": body}
          open("/tmp/release.json", "w", encoding="utf-8").write(json.dumps(payload))
          print(f"release notes: {len(body)} chars")
          PY

      - name: Publish Gitea release
        env:
          TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          set -euo pipefail
          API="${{ github.server_url }}/api/v1/repos/${{ github.repository }}"
          TAG="v${{ steps.ver.outputs.version }}"

          code=$(curl -sS -o /tmp/existing.json -w '%{http_code}' \
            -H "Authorization: token ${TOKEN}" "${API}/releases/tags/${TAG}")
          if [ "$code" = "200" ]; then
            echo "Release ${TAG} already exists — nothing to do."
            exit 0
          fi

          echo "Creating release ${TAG}…"
          rid=$(curl -sS -X POST \
            -H "Authorization: token ${TOKEN}" \
            -H "Content-Type: application/json" \
            -d @/tmp/release.json \
            "${API}/releases" | python -c "import sys, json; print(json.load(sys.stdin)['id'])")

          for f in dist/*; do
            echo "Uploading $(basename "$f")…"
            curl -sS -X POST \
              -H "Authorization: token ${TOKEN}" \
              -F "attachment=@${f}" \
              "${API}/releases/${rid}/assets?name=$(basename "$f")" >/dev/null
          done
          echo "Published ${TAG}."