{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "title": "Whiteboard config",
  "type": "object",
  "properties": {
    "backend": {
      "type": "object",
      "required": ["accessToken", "performance", "enableWebdav"],
      "additionalProperties": false,
      "properties": {
        "accessToken": {
          "type": "string"
        },
        "enableWebdav": {
          "type": "boolean"
        },
        "performance": {
          "additionalProperties": false,
          "type": "object",
          "required": ["whiteboardInfoBroadcastFreq"],
          "properties": {
            "whiteboardInfoBroadcastFreq": {
              "type": "number",
              "minimum": 0
            }
          }
        }
      }
    },
    "frontend": {
      "type": "object",
      "additionalProperties": false,
      "required": ["onWhiteboardLoad", "showSmallestScreenIndicator", "performance"],
      "properties": {
        "onWhiteboardLoad": {
          "type": "object",
          "additionalProperties": false,
          "required": ["displayInfo", "setReadOnly"],
          "properties": {
            "setReadOnly": {
              "type": "boolean"
            },
            "displayInfo": {
              "type": "boolean"
            }
          }
        },
        "showSmallestScreenIndicator": {
          "type": "boolean"
        },
        "imageDownloadFormat": {
          "type": "string"
        },
        "drawBackgroundGrid": {
          "type": "boolean"
        },
        "backgroundGridImage": {
          "type": "string"
        },
        "performance": {
          "type": "object",
          "additionalProperties": false,
          "required": ["pointerEventsThrottling", "refreshInfoFreq"],
          "properties": {
            "pointerEventsThrottling": {
              "type": "array",
              "minItems": 1,
              "items": {
                "type": "object",
                "additionalProperties": false,
                "required": ["fromUserCount", "minDistDelta", "maxFreq"],
                "properties": {
                  "fromUserCount": {
                    "type": "number",
                    "minimum": 0
                  },
                  "minDistDelta": {
                    "type": "number",
                    "minimum": 0
                  },
                  "maxFreq": {
                    "type": "number",
                    "minimum": 0
                  }
                }
              }
            },
            "refreshInfoFreq": {
              "type": "number",
              "minimum": 0
            }
          }
        }
      }
    }
  },
  "required": ["backend", "frontend"],
  "additionalProperties": false
}