{
  "definitions": {},
  "$schema": "http://json-schema.org/draft-07/schema#",
  "type": "object",
  "required": [
    "tables"
  ],
  "properties": {
    "arrangement": {
      "type": "string",
      "enum": [
        "spiral"
      ],
      "description": "Arrangement of the tables. Note if this value is set, the \"table.pos\" values will be ignored."
    },
    "viewport": {
      "type": "string",
      "enum": [
        "noChange",
        "centerByTablesWeight",
        "center",
        "centerByTables"
      ],
      "description": "Viewport positioning strategy on initial load.",
      "default": "centerByTables"
    },
    "viewHeight": {
      "type": "integer",
      "default": 5000
    },
    "viewWidth": {
      "type": "integer",
      "default": 5000
    },
    "tables": {
      "type": "array",
      "items": {
        "type": "object",
        "required": [
          "name",
          "columns"
        ],
        "properties": {
          "name": {
            "$id": "#/properties/tables/items/properties/name",
            "type": "string",
            "default": "",
            "examples": [
              "school"
            ],
            "pattern": "^(.*)$"
          },
          "pos": {
            "description": "Defines position of table.",
            "anyOf": [
              {
                "type": "string",
                "enum": [
                  "center-viewport"
                ],
                "description": "If it's set to viewport-center it will be centered on viewport."
              },
              {
                "type": "object",
                "required": [
                  "x",
                  "y"
                ],
                "properties": {
                  "x": {
                    "type": "number",
                    "minimum": 0,
                    "default": 0
                  },
                  "y": {
                    "type": "number",
                    "minimum": 0,
                    "default": 0
                  }
                }
              }
            ]
          },
          "columns": {
            "type": "array",
            "items": {
              "type": "object",
              "required": [
                "name"
              ],
              "properties": {
                "name": {
                  "type": "string",
                  "examples": [
                    "id"
                  ],
                  "pattern": "^(.*)$"
                },
                "pk": {
                  "type": "boolean",
                  "default": false,
                  "examples": [
                    true
                  ],
                  "description": "pk stands for primary key"
                },
                "nn": {
                  "type": "boolean",
                  "default": false,
                  "description": "nn stands for not null"
                },
                "uq": {
                  "type": "boolean",
                  "default": false,
                  "description": "uq stands for unique"
                },
                "fk": {
                  "type": "object",
                  "required": [
                    "table",
                    "column"
                  ],
                  "properties": {
                    "table": {
                      "type": "string"
                    },
                    "column": {
                      "type": "string"
                    }
                  }
                },
                "type": {
                  "type": "string",
                  "examples": [
                    "int"
                  ],
                  "pattern": "^(.*)$"
                }
              }
            }
          }
        }
      }
    }
  }
}