{
  "lexicon": 1,
  "id": "ing.dasl.masl",
  "description": "Lexicon for DASL (https://dasl.ing/) types used on AT, notably for Web Tiles.",
  "defs": {
    "masl": {
      "type": "object",
      "description": "MASL metadata as defined in https://dasl.ing/masl.html",
      "properties": {
        "name": {
          "type": "string",
          "description": "The name for the tile, can be a title or app name",
          "maxLength": 1000,
          "maxGraphemes": 100
        },
        "description": {
          "type": "string",
          "description": "Short overview of the content",
          "maxLength": 3000,
          "maxGraphemes": 300
        },
        "categories": {
          "type": "array",
          "description": "Tags categorising the tile",
          "items": {
            "type": "string"
          }
        },
        "background_color": {
          "type": "string",
          "description": "A colour for the background of the tile"
        },
        "icons": {
          "type": "array",
          "description": "Icons for the tile",
          "items": {
            "type": "object",
            "required": ["src"],
            "properties": {
              "src": { "type": "string" },
              "sizes": { "type": "string" },
              "purpose": { "type": "string" }
            }
          }
        },
        "screenshots": {
          "type": "array",
          "description": "Screenshots, can be used for banner or card images",
          "items": {
            "type": "object",
            "required": ["src"],
            "properties": {
              "src": { "type": "string" },
              "sizes": { "type": "string" },
              "label": { "type": "string" }
            }
          }
        },
        "sizing": {
          "type": "object",
          "description": "Requesting sizing properties for the content",
          "properties": {
            "width": {
              "type": "integer",
              "mininum": 1
            },
            "height": {
              "type": "integer",
              "mininum": 1
            }
          },
          "required": ["width", "height"]
        },
        "resources": {
          "type": "unknown",
          "description": "A mapping of path to object with a CID src and HTTP headers"
        },
        "short_name": {
          "type": "string",
          "description": "A name, in case the basic name cannot fit"
        },
        "theme_color": {
          "type": "string",
          "description": "Theme colour"
        },
        "prev": {
          "type": "cid-link",
          "description": "In case there are multiple versions of this tile, this is the CID of the previous one"
        },
        "version": {
          "type": "integer",
          "description": "The CAR version — avoid using this",
          "const": 1
        },
        "roots": {
          "type": "array",
          "description": "The CAR roots — avoid using this",
          "items": { "type": "cid-link" }
        }
      },
      "required": ["name", "resources"]
    },
    "main": {
      "type": "record",
      "description": "A tile, instantiating MASL metadata into a record",
      "key": "tid",
      "record": {
        "type": "object",
        "required": ["cid", "tile", "createdAt"],
        "properties": {
          "cid": {
            "type": "string",
            "description": "The DRISL CID of the MASL for the tile",
            "format": "cid"
          },
          "tile": {
            "type": "ref",
            "description": "The MASL content",
            "ref": "ing.dasl.masl#masl"
          },
          "createdAt": {
            "type": "string",
            "description": "Timestamp",
            "format": "datetime"
          }
        }
      }
    }
  }
}