{
  "version": 2,
  "name": "park_access_score",
  "description": "Versailles park accessibility: compute vegetation area (Lambert93), keep only parks >= 1 ha (SCoT IdF urban-park threshold), then for each residential building measure the distance to the nearest park and classify against WHO / SCoT / ADEME walking thresholds (300 m / 600 m / 1000 m).",
  "ref_layers": {
    "vegetation": "vegetation",
    "batiments": "batiments"
  },
  "steps": [
    {
      "id": "compute_veg_area",
      "type": "capability",
      "capability": "area_length",
      "params": {
        "area_col": "area_m2",
        "crs_meters": "EPSG:2154",
        "compute_length": false
      }
    },
    {
      "id": "filter_parks_1ha",
      "type": "capability",
      "capability": "filter",
      "params": {
        "expression": "area_m2 >= 10000"
      },
      "input": "compute_veg_area"
    },
    {
      "id": "filter_residential",
      "type": "capability",
      "capability": "filter",
      "params": {
        "expression": "usage_1 == 'Résidentiel'"
      },
      "input": "batiments"
    },
    {
      "id": "nearest_park",
      "type": "capability",
      "capability": "nearest_neighbor",
      "params": {
        "ref_layer": "filter_parks_1ha",
        "k": 1,
        "distance_col": "park_distance_m",
        "columns": ["cleabs", "nature", "area_m2"],
        "crs_meters": "EPSG:2154"
      },
      "input": "filter_residential"
    },
    {
      "id": "classify_access",
      "type": "capability",
      "capability": "classify",
      "params": {
        "field": "park_distance_m",
        "method": "manual",
        "bins": 4,
        "breaks": [0, 300, 600, 1000, 99999],
        "class_col": "access_class",
        "color_col": "access_color",
        "palette": ["#1a9850", "#a6d96a", "#fdae61", "#d7191c"]
      },
      "input": "nearest_park"
    }
  ],
  "triggers": [
    {
      "on": "schedule:0 6 * * 1",
      "then": "run_pipeline"
    }
  ]
}