name: build

# Builds the dictionary DAWGs on every push/PR (validation) and, on a vX.Y.Z tag,
# packages them flat into scrabble-dawg-<tag>.tar.gz and attaches it to the Gitea release.
# The build pins the published scrabble-solver builders (GOPRIVATE -> direct VCS fetch from
# this Gitea), so the on-disk format matches the running backend exactly.

on:
  push:
    branches: [master]
    tags: ['v*']
  pull_request:
    branches: [master]

jobs:
  dawg:
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
    env:
      GOPRIVATE: gitea.iliadenisov.ru/*
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Set up Go
        uses: actions/setup-go@v5
        with:
          go-version-file: go.mod
          cache: true

      - name: Build DAWGs
        run: |
          make dawg
          ls -la dawg/
          for f in en_sowpods ru_scrabble ru_erudit; do
            test -s "dawg/$f.dawg" || { echo "missing dawg/$f.dawg"; exit 1; }
          done

      - name: Package and publish release artifact
        if: startsWith(github.ref, 'refs/tags/v')
        env:
          TOKEN: ${{ github.token }}
          API: ${{ github.server_url }}/api/v1/repos/${{ github.repository }}
        run: |
          set -eo pipefail
          tag="${GITHUB_REF_NAME}"
          art="scrabble-dawg-${tag}.tar.gz"
          tar czf "$art" -C dawg en_sowpods.dawg ru_scrabble.dawg ru_erudit.dawg
          # Create the release (or fetch it if it already exists), then upload the asset.
          code=$(curl -sS -o /tmp/rel.json -w '%{http_code}' -X POST "$API/releases" \
            -H "Authorization: token $TOKEN" -H 'Content-Type: application/json' \
            -d "{\"tag_name\":\"$tag\",\"name\":\"$tag\",\"body\":\"Dictionary DAWG set $tag (en_sowpods, ru_scrabble, ru_erudit).\"}")
          if [ "$code" != "201" ]; then
            echo "release POST returned $code; fetching existing release for tag $tag"
            curl -sS -o /tmp/rel.json "$API/releases/tags/$tag" -H "Authorization: token $TOKEN"
          fi
          rel_id=$(python3 -c 'import json;print(json.load(open("/tmp/rel.json"))["id"])')
          curl -sS -X POST "$API/releases/$rel_id/assets?name=$art" \
            -H "Authorization: token $TOKEN" -F "attachment=@$art" -o /tmp/asset.json
          echo "published $art to release $rel_id"