{
   "comment": "Surface ID to Layer ID mapping",

   "main_surface": {
      "surface_id": "1000",
      "comment": "This surface should never be made invisible (The HomeScreen)"
   },

   "layers": [
      {
         "name": "HomeScreen",
         "layer_id": "1000",
         "area": { "type": "full" }
      },
      {
         "name": "Apps",
         "layer_id": "1001",
         "area": { "type": "rect", "rect": { "x": "0", "y": "100", "width": "-1", "height": "-201" } }
      },
      {
         "name": "Popups",
         "layer_id": "9999",
         "area": { "type": "rect", "rect": { "x": "0", "y": "100", "width": "-1", "height": "-201" } }
      }
   ],

   "mappings": [
      {
         "type": "single",
         "surface_id": "1000",
         "name": "HomeScreen",
         "layer_id": "1000",
         "area": { "type": "full" },
         "comment": "Single layer map for the HomeScreen, XXX: type is redundant, could also check existence of id/first_id+last_id"
      },
      {
         "type": "range",
         "first_surface_id": "2000",
         "last_surface_id": "2999",
         "name": "apps",
         "layer_id": "1001",
         "area": { "type": "rect", "rect": { "x": "0", "y": "100", "width": "-1", "height": "-201" } },
         "comment": "Range of IDs that will always be placed on layer 1001, negative rect values are interpreted as output_size.dimension - $value"
      },
      {
         "type": "range",
         "first_surface_id": "3000",
         "last_surface_id": "3999",
         "name": "popups",
         "layer_id": "9999",
         "area": { "type": "rect", "rect": { "x": "0", "y": "100", "width": "-1", "height": "-201" } },
         "comment": "Range of IDs that will always be placed on the popup layer, that gets a very high 'dummy' id of 9999"
      }
   ],

   "tests": [
      { "surface_id": "1000", "expect_layer_id": "1000" },
      { "surface_id": "1001", "expect_layer_id": "-1", "comment": "check against -1 for not found entries" },
      { "surface_id": "1999", "expect_layer_id": "-1" },
      { "surface_id": "2000", "expect_layer_id": "1001" },
      { "surface_id": "2500", "expect_layer_id": "1001" },
      { "surface_id": "2999", "expect_layer_id": "1001" },
      { "surface_id": "3000", "expect_layer_id": "9999" },
      { "surface_id": "3500", "expect_layer_id": "9999" },
      { "surface_id": "3999", "expect_layer_id": "9999" },
      { "surface_id": "4711", "expect_layer_id": "-1" }
   ]
}