title: "maps/tile_change"
description: "Indicates a state change of an OpenStreetMap tile"
$id: "/maps/tile_change/1.0.0"
$schema: "https://json-schema.org/draft-07/schema#"
type: object
additionalProperties: false

allOf:
  - $ref: "/fragment/common/1.1.0"

properties:
  tile:
    type: "string"
    description: "Map tile in z/x/y format"
    pattern: '^\d{1,2}\/\d{1,7}\/\d{1,7}$'
    maxLength: 18
  state:
    type: "string"
    description: "The state of the map tile"
    enum: ["expired", "pregenerated"]
required:
  - tile
  - state

examples:
  - $schema: { $ref: "#/$id" }
    meta:
      dt: "2020-04-02T19:11:20.942Z"
      stream: "maps.tile_change"
    tile: "0/0/0"
    state: "expired"