name: release

on:
  push:
    tags:
      - "v[0-9]+.[0-9]+.[0-9]+"

permissions:
  contents: write

jobs:
  release:
    runs-on: golang
    container:
      image: golang:1.25
    env:
      GOPRIVATE: forgejo.riotpiao.com
    steps:
      - name: install node + curl + jq (required by JS-based actions / release API call)
        run: apt-get update && apt-get install -y --no-install-recommends nodejs ca-certificates git curl jq

      - uses: actions/checkout@v4

      - name: configure git auth for private module fetch
        run: |
          git config --global url."https://oauth2:${GITHUB_TOKEN}@forgejo.riotpiao.com".insteadOf "https://forgejo.riotpiao.com"
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      # A tag is the public contract for `go get ...@vX.Y.Z` — re-run the full
      # gate before publishing a release, never trust that main was green.
      - name: go vet
        run: go vet ./...

      - name: go build
        run: go build ./...

      - name: go test
        run: go test ./... -race

      - name: extract changelog section
        id: changelog
        run: |
          tag="${GITHUB_REF_NAME}"
          version="${tag#v}"
          notes="$(awk -v ver="$version" '
            $0 ~ "^## v"ver"([^.0-9]|$)" { found=1; next }
            found && /^## / { exit }
            found { print }
          ' CHANGELOG.md)"
          if [ -z "$notes" ]; then
            notes="(no changelog entry found for $tag)"
          fi
          {
            echo "notes<<EOF"
            echo "$notes"
            echo "EOF"
          } >> "$GITHUB_OUTPUT"

      - name: create forgejo release
        run: |
          curl -fsSL -X POST \
            -H "Authorization: token ${FORGEJO_TOKEN}" \
            -H "Content-Type: application/json" \
            "${GITHUB_SERVER_URL}/api/v1/repos/${GITHUB_REPOSITORY}/releases" \
            -d "$(jq -n \
                  --arg tag "$GITHUB_REF_NAME" \
                  --arg body "${{ steps.changelog.outputs.notes }}" \
                  '{tag_name: $tag, name: $tag, body: $body, draft: false, prerelease: false}')"
        env:
          FORGEJO_TOKEN: ${{ secrets.GITHUB_TOKEN }}