belgium-flanders.yml

name: 🇧🇪 Flanders, Belgium

on:
  workflow_dispatch:
  # Run at 12:00 UTC every 5 days (to make sure cache doesn't expire)
  schedule:
    - cron: "0 12 */5 * *"
  push:
    paths:
      - ".github/workflows/belgium-flanders.yml"
      - ".github/actions/*/action.yml"
      - "script/**/*.ts"
      - "data/belgium/flanders/convert.json"
      - "data/belgium/flanders/filter.sql"
  pull_request:
    paths:
      - ".github/workflows/belgium-flanders.yml"
      - ".github/actions/*/action.yml"
      - "script/**/*.ts"
      - "data/belgium/flanders/convert.json"
      - "data/belgium/flanders/filter.sql"

# Allow one concurrent deployment
concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

env:
  MAPROULETTE_CHALLENGE_ID: 24090
  WEGENREGISTER_URL: "https://download.vlaanderen.be/bff/v1/Orders/337327/download/79c09c5d-e2c5-45c0-a5fa-52734128aa01"
  WEGENREGISTER_DATE: "20250130"

jobs:

  diff:
    name: Generate difference for Flanders, Belgium
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - name: Install GDAL
        run: |
          sudo apt-add-repository ppa:ubuntugis/ubuntugis-unstable
          sudo apt update
          sudo apt install gdal-bin
      - name: Install Tippecanoe
        uses: ./.github/actions/install-tippecanoe
      - name: Install dependencies
        run: npm install
        working-directory: script
      - name: Build
        run: npm run build
        working-directory: script
      - name: Generate OpenStreetMap buffers
        uses: ./.github/actions/openstreetmap-buffers
        with:
          country: europe/belgium
      - name: Cache WegenRegister data
        id: cache-wegenregister
        uses: actions/cache@v4
        with:
          path: Wegsegment.geojson
          key: wegenregister-${{ env.WEGENREGISTER_DATE }}
      - name: Download & Unzip Wegenregister data
        if: ${{ steps.cache-wegenregister.outputs.cache-hit != 'true' }}
        run: |
          wget --content-disposition ${{ env.WEGENREGISTER_URL }}
          unzip -j "Wegenregister_SHAPE_${{ env.WEGENREGISTER_DATE }}.zip" "Shapefile/Wegsegment.*"
      - name: Convert (and filter) Wegenregister to GeoJSON
        if: ${{ steps.cache-wegenregister.outputs.cache-hit != 'true' }}
        run: |
          ogr2ogr -f "GeoJSON" -progress \
            --config SHAPE_ENCODING "ISO-8859-1" \
            -s_srs "EPSG:31370" -t_srs "EPSG:4326" \
            -sql "@data/belgium/flanders/filter.sql" \
            -lco COORDINATE_PRECISION=6 \
            -fieldTypeToString "All" \
            "Wegsegment.geojson" \
            "Wegsegment.shp"
      - name: Convert Wegenregister fields to OpenStreetMap tags
        run: node "script/convert-tags.js" -c "data/belgium/flanders/convert.json" "Wegsegment.geojson" "WegsegmentTagged.geojson"
      - name: Generate Wegenregister vector tiles
        run: |
          tippecanoe --force --no-feature-limit --no-tile-size-limit \
            --buffer=0 \
            --maximum-zoom=14 --minimum-zoom=14 \
            --layer="roads" \
            --output="WegsegmentTagged.mbtiles" "WegsegmentTagged.geojson"
      - name: Generate MapRoulette buffers
        uses: ./.github/actions/maproulette-buffers
        with:
          challenge-id: ${{ env.MAPROULETTE_CHALLENGE_ID }}
      - name: Upload MapRoulette false positive
        uses: actions/upload-artifact@v4
        with:
          name: MapRoulette-FalsePositive
          path: maproulette.geojson
      - name: Merge MapRoulette buffers to OpenStreetMap buffers and generate vector tiles
        run: |
          tippecanoe --force --no-feature-limit --no-tile-size-limit \
            --maximum-zoom=14 --minimum-zoom=14 \
            --layer="buffers" \
            --output="belgium-buffers.mbtiles" \
            "openstreetmap-lines-buffers.geojson" "openstreetmap-polygons-buffers.geojson" "maproulette-buffers.geojson"
      - name: Difference
        run: node "script/difference.js" --output-dir="data/belgium/flanders/difference" "WegsegmentTagged.mbtiles" "belgium-buffers.mbtiles"
      - name: Upload difference
        uses: actions/upload-artifact@v4
        with:
          name: Flanders-Difference
          path: data/belgium/flanders/difference/diff.geojson
      - name: Upload statistics
        uses: actions/upload-artifact@v4
        with:
          name: Flanders-Statistics
          path: data/belgium/flanders/difference/stats.json

  commit:
    name: Commit & Push changes
    needs: diff
    if: ${{ github.event_name != 'pull_request' }}
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4
      - uses: actions/download-artifact@v4
        with:
          name: Flanders-Difference
          path: data/belgium/flanders/difference
      - uses: actions/download-artifact@v4
        with:
          name: Flanders-Statistics
          path: data/belgium/flanders/difference
      - name: Commit & Push
        run: |
          git config user.name github-actions[bot]
          git config user.email 41898282+github-actions[bot]@users.noreply.github.com
          git pull
          git add data/belgium/flanders/difference/diff.geojson
          git add data/belgium/flanders/difference/stats.json
          git commit -m "🗃 Update difference for Flanders, Belgium"
          git push

  mr-rebuild:
    name: Rebuild MapRoulette challenge
    needs: commit
    runs-on: ubuntu-latest
    steps:
      - name: Call MapRoulette API
        run: |
          curl -X "PUT" "https://maproulette.org/api/v2/challenge/${{ env.MAPROULETTE_CHALLENGE_ID }}/rebuild?removeUnmatched=true&skipSnapshot=false" \
            -H "Accept: application/json" \
            -H "apiKey: ${{ secrets.MAPROULETTE_API_KEY }}"