name: Tests · Go

# Fast unit tests for the Go side of the monorepo. Runs on every push and pull
# request whose path filter matches a Go source directory. The module list
# grows as new go.work modules (gateway, pkg/*, platform/*) are added by later
# stages.

on:
  push:
    paths:
      - 'backend/**'
      - 'gateway/**'
      - 'pkg/**'
      - 'platform/**'
      - 'go.work'
      - 'go.work.sum'
      - '.gitea/workflows/go-unit.yaml'
      - '!**/*.md'
  pull_request:
    paths:
      - 'backend/**'
      - 'gateway/**'
      - 'pkg/**'
      - 'platform/**'
      - 'go.work'
      - 'go.work.sum'
      - '.gitea/workflows/go-unit.yaml'
      - '!**/*.md'

jobs:
  test:
    runs-on: ubuntu-latest
    defaults:
      run:
        shell: bash
    env:
      # The engine consumes the published scrabble-solver module from this Gitea;
      # GOPRIVATE makes go fetch it directly (skipping the public proxy/checksum DB).
      # DICT_VERSION selects the dictionary DAWG release the engine tests load.
      GOPRIVATE: gitea.iliadenisov.ru/*
      DICT_VERSION: v1.0.0
    steps:
      - name: Checkout
        uses: actions/checkout@v4

      - name: Fetch dictionary DAWGs
        # The DAWGs moved to the scrabble-dictionary repo (the solver is now a
        # versioned module pinned in backend/go.mod, fetched via GOPRIVATE — no
        # sibling clone). They ship as a release artifact, one semver per set.
        run: |
          mkdir -p "${GITHUB_WORKSPACE}/dawg"
          curl -fsSL -o /tmp/dawg.tar.gz "https://gitea.iliadenisov.ru/developer/scrabble-dictionary/releases/download/${DICT_VERSION}/scrabble-dawg-${DICT_VERSION}.tar.gz"
          tar xzf /tmp/dawg.tar.gz -C "${GITHUB_WORKSPACE}/dawg"
          ls -la "${GITHUB_WORKSPACE}/dawg"

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

      - name: gofmt
        run: |
          unformatted="$(gofmt -l .)"
          if [ -n "$unformatted" ]; then
            echo "gofmt needed on:"; echo "$unformatted"; exit 1
          fi

      - name: vet
        run: go vet ./backend/... ./pkg/... ./gateway/... ./platform/telegram/...

      - name: build
        run: go build ./backend/... ./pkg/... ./gateway/... ./platform/telegram/...

      - name: test
        # -count=1 disables the test cache so a green run never depends on a
        # previous runner's cached state. BACKEND_DICT_DIR points the engine
        # tests at the DAWGs fetched from the dictionary release.
        env:
          BACKEND_DICT_DIR: ${{ github.workspace }}/dawg
        run: go test -count=1 ./backend/... ./pkg/... ./gateway/... ./platform/telegram/...