name: ci

on:
  push:
    paths:
      - "back001/**"
      - "front001/**"
      - ".forgejo/workflows/**"
      - "ci/**"
  pull_request:

jobs:
  changes:
    runs-on: docker
    steps:
      - uses: actions/checkout@v4
        with:
          fetch-depth: 2

      - id: filter
        name: Detect changes
        run: |
          set -euo pipefail
          git fetch --quiet --depth=1 origin "${GITHUB_BASE_REF:-}" || true

          files=""
          if [ "${GITHUB_EVENT_NAME:-}" = "pull_request" ] && [ -n "${GITHUB_BASE_REF:-}" ]; then
            base_ref="origin/${GITHUB_BASE_REF}"
            if git rev-parse --verify "$base_ref" >/dev/null 2>&1; then
              files="$(git diff --name-only "$base_ref"...HEAD)"
            else
              files="$(git diff --name-only HEAD^..HEAD || true)"
            fi
          else
            if git rev-parse --verify "${GITHUB_SHA}^" >/dev/null 2>&1; then
              files="$(git diff --name-only "${GITHUB_SHA}^" "${GITHUB_SHA}")"
            else
              files="$(git diff --name-only HEAD^..HEAD || true)"
            fi
          fi

          if [ -z "$files" ]; then
            files="$(git ls-files)"
          fi

          backend=false
          frontend=false
          while IFS= read -r path; do
            case "$path" in
              back001/*|.forgejo/workflows/*|ci/*) backend=true ;;
            esac
            case "$path" in
              front001/*|.forgejo/workflows/*|ci/*) frontend=true ;;
            esac
          done <<EOF
          $files
          EOF

          {
            echo "backend=$backend"
            echo "frontend=$frontend"
          } >> "$GITHUB_OUTPUT"
    outputs:
      backend: ${{ steps.filter.outputs.backend }}
      frontend: ${{ steps.filter.outputs.frontend }}

  backend:
    needs: changes
    if: needs.changes.outputs.backend == 'true'
    runs-on: docker
    container:
      image: forgejo.okit.pl/oskar/ci-gradle-node:8.7-jdk17
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: |
            /home/gradle/.gradle/caches
            /home/gradle/.gradle/wrapper
          key: gradle-${{ runner.os }}-${{ hashFiles('back001/**/*.gradle*', 'back001/**/gradle-wrapper.properties') }}
          restore-keys: |
            gradle-${{ runner.os }}-

      - name: Test + build (backend)
        working-directory: back001
        run: ./gradlew test build --no-daemon

  flutter:
    needs: changes
    if: needs.changes.outputs.frontend == 'true'
    runs-on: docker
    container:
      image: forgejo.okit.pl/oskar/ci-flutter-node:stable
    steps:
      - uses: actions/checkout@v4

      - uses: actions/cache@v4
        with:
          path: |
            /root/.pub-cache
          key: pub-${{ runner.os }}-${{ hashFiles('front001/mosenioring/pubspec.lock') }}
          restore-keys: |
            pub-${{ runner.os }}-

      - name: Pub get
        working-directory: front001/mosenioring
        run: flutter pub get

      - name: Analyze (non-blocking for now)
        working-directory: front001/mosenioring
        run: flutter analyze || true

      - name: Test
        working-directory: front001/mosenioring
        run: flutter test