{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://json-schema.org/automaticmagic/topolys.json#",
  "title": "Topolys Schema",
  "description": "Schema for the Topolys Model",
  
  "type": "object",
  "properties": {
    "vertices": {
      "type": "array",
      "items": { "$ref": "#/definitions/Vertex" },
      "default": []
    },
    "edges": {
      "type": "array",
      "items": { "$ref": "#/definitions/Edge" },
      "default": []
    },
    "directed_edges": {
      "type": "array",
      "items": { "$ref": "#/definitions/DirectedEdge" },
      "default": []
    },
    "wires": {
      "type": "array",
      "items": { "$ref": "#/definitions/Wire" },
      "default": []
    },
    "faces": {
      "type": "array",
      "items": { "$ref": "#/definitions/Face" },
      "default": []
    },
    "shells": {
      "type": "array",
      "items": { "$ref": "#/definitions/Shell" },
      "default": []
    }
  },

  "definitions": {
    "Point3D": {
      "type": "object",
      "properties": {
        "x": { "type": "number" },
        "y": { "type": "number" },
        "z": { "type": "number" }
      },
      "additionalProperties": false,
      "required": ["x", "y", "z"]
    },     
    "Vector3D": {
      "type": "object",
      "properties": {
        "x": { "type": "number" },
        "y": { "type": "number" },
        "z": { "type": "number" }
      },
      "additionalProperties": false,
      "required": ["x", "y", "z"]
    },      
    "Plane3D": {
      "type": "object",
      "properties": {
        "point": { "$ref": "#/definitions/Point3D" },
        "normal": { "$ref": "#/definitions/Vector3D" }
      },
      "additionalProperties": false,
      "required": ["x", "y", "z"]
    },               
    "Vertex": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "point": { "$ref": "#/definitions/Point3D" }
      },
      "additionalProperties": false,
      "required": ["id", "point"]
    },    
    "Edge": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "v0": { "type": "string" },
        "v1": { "type": "string" }
      },
      "additionalProperties": false,
      "required": ["id", "v0", "v1"]
    },    
    "DirectedEdge": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "edge": { "type": "string" },
        "inverted": { "type": "boolean" }
      },
      "additionalProperties": false,
      "required": ["id", "edge", "inverted"]
    },    
    "Wire": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "directed_edges": { "type": "array", "contains": { "type": "string"} }
      },
      "additionalProperties": false,
      "required": ["id", "directed_edges"]
    },    
    "Face": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "outer": { "type": "string" },
        "holes": { "type": "array", "contains": { "type": "string"} }
      },
      "additionalProperties": false,
      "required": ["id", "outer", "holes"]
    },    
    "Shell": {
      "type": "object",
      "properties": {
        "id": { "type": "string" },
        "attributes": { "type": "object", "additionalProperties": true },
        "faces": { "type": "array", "contains": { "type": "string"} }
      },
      "additionalProperties": false,
      "required": ["id", "faces"]
    }
  }
}