{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://github.com/oxforge/diago/internal/schema/class-spec",
  "$ref": "#/$defs/ClassSpec",
  "$defs": {
    "ClassNodeSpec": {
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique id. It must not contain -\u003e or end in @ followed by digits."
        },
        "label": {
          "type": "string",
          "description": "Class name. Defaults to the id."
        },
        "stereotype": {
          "type": "string",
          "description": "Rendered as «stereotype» above the name; abstract also italicises the name."
        },
        "type_params": {
          "items": {
            "type": "string"
          },
          "type": "array",
          "description": "Generic parameters. Rendered after the class name as a comma-separated list inside angle brackets."
        },
        "color": {
          "type": "string"
        },
        "attributes": {
          "items": {
            "$ref": "#/$defs/MemberSpec"
          },
          "type": "array"
        },
        "methods": {
          "items": {
            "$ref": "#/$defs/MemberSpec"
          },
          "type": "array"
        }
      },
      "additionalProperties": false,
      "type": "object",
      "required": [
        "id"
      ]
    },
    "ClassSpec": {
      "properties": {
        "type": {
          "type": "string"
        },
        "title": {
          "type": "string",
          "description": "Diagram title, rendered as a band above the diagram."
        },
        "theme": {
          "type": "string",
          "enum": [
            "default",
            "dark",
            "midnight",
            "sketch"
          ],
          "description": "Theme the render uses unless the -theme flag overrides it. Defaults to the default theme."
        },
        "direction": {
          "type": "string",
          "enum": [
            "DOWN",
            "UP",
            "RIGHT",
            "LEFT",
            "AUTO"
          ],
          "description": "Layout direction. Defaults to DOWN."
        },
        "classes": {
          "items": {
            "$ref": "#/$defs/ClassNodeSpec"
          },
          "type": "array"
        },
        "relations": {
          "items": {
            "$ref": "#/$defs/RelationSpec"
          },
          "type": "array"
        },
        "packages": {
          "items": {
            "$ref": "#/$defs/GroupSpec"
          },
          "type": "array",
          "description": "Packages group classes like flow groups: contains holds class ids or package ids (max 3 levels deep)."
        },
        "legend": {
          "type": "boolean",
          "description": "Render a legend row per relation kind present in the diagram."
        },
        "legend_labels": {
          "additionalProperties": {
            "type": "string"
          },
          "type": "object",
          "description": "Legend row label per relation kind; an empty value hides that row."
        },
        "ignore": {
          "items": {
            "type": "string"
          },
          "type": "array",
          "description": "Advisory rules to silence for this spec (see diago check). Each entry must be a rule name."
        }
      },
      "additionalProperties": false,
      "type": "object",
      "required": [
        "type",
        "classes"
      ]
    },
    "GroupSpec": {
      "properties": {
        "id": {
          "type": "string",
          "description": "Unique id. It must not contain -\u003e or end in @ followed by digits."
        },
        "label": {
          "type": "string"
        },
        "contains": {
          "items": {
            "type": "string"
          },
          "type": "array",
          "description": "Node IDs or group IDs belonging to this group. Referencing a group ID creates a nested child group (max 3 levels deep)."
        },
        "color": {
          "type": "string"
        }
      },
      "additionalProperties": false,
      "type": "object",
      "required": [
        "id",
        "label"
      ]
    },
    "MemberSpec": {
      "properties": {
        "visibility": {
          "type": "string",
          "enum": [
            "+",
            "-",
            "#",
            "~"
          ]
        },
        "text": {
          "type": "string"
        },
        "static": {
          "type": "boolean"
        },
        "abstract": {
          "type": "boolean"
        }
      },
      "additionalProperties": false,
      "type": "object",
      "required": [
        "text"
      ]
    },
    "RelationSpec": {
      "properties": {
        "id": {
          "type": "string",
          "description": "Optional stable identifier. Keep ids stable across edits because diffs and layout anchoring key on them. Defaults to from-\u003eto#n over the endpoints as written."
        },
        "from": {
          "type": "string"
        },
        "to": {
          "type": "string"
        },
        "kind": {
          "type": "string",
          "enum": [
            "association",
            "inheritance",
            "realization",
            "dependency",
            "aggregation",
            "composition"
          ],
          "description": "Relation kind. Defaults to association. For inheritance and realization from is the subtype and to is the supertype or interface."
        },
        "label": {
          "type": "string"
        },
        "from_card": {
          "type": "string",
          "description": "Cardinality at the from end. Examples: 1 or 0..*."
        },
        "to_card": {
          "type": "string",
          "description": "Cardinality at the to end."
        },
        "directed": {
          "type": "boolean",
          "description": "Arrowhead at the to end. Default true for dependency and false for association; not allowed on adorned kinds."
        },
        "color": {
          "type": "string"
        }
      },
      "additionalProperties": false,
      "type": "object",
      "required": [
        "from",
        "to"
      ]
    }
  }
}