{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://systemsimulation.local/schemas/component-catalog-v1.schema.json",
  "title": "SystemSimulation Component Catalog v1",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schemaVersion",
    "libraries"
  ],
  "properties": {
    "schemaVersion": {
      "const": 1
    },
    "libraries": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/library"
      }
    }
  },
  "$defs": {
    "machineId": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_]*$"
    },
    "version": {
      "type": "string",
      "pattern": "^[0-9]+\\.[0-9]+\\.[0-9]+$"
    },
    "category": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "id",
        "label",
        "order"
      ],
      "properties": {
        "id": {
          "$ref": "#/$defs/machineId"
        },
        "label": {
          "type": "string",
          "minLength": 1
        },
        "order": {
          "type": "integer"
        }
      }
    },
    "portVariable": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "name",
        "role",
        "connectionRule",
        "label",
        "quantity",
        "unit",
        "resultVisible",
        "order"
      ],
      "properties": {
        "name": {
          "type": "string",
          "pattern": "^[A-Za-z][A-Za-z0-9_]*$"
        },
        "role": {
          "enum": [
            "effort",
            "flow",
            "stream",
            "signal"
          ]
        },
        "connectionRule": {
          "enum": [
            "equal",
            "sumToZero",
            "streamMix",
            "directed"
          ]
        },
        "label": {
          "type": "string",
          "minLength": 1
        },
        "quantity": {
          "type": "string",
          "minLength": 1
        },
        "unit": {
          "type": "string"
        },
        "resultVisible": {
          "type": "boolean"
        },
        "order": {
          "type": "integer"
        }
      }
    },
    "port": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "name",
        "kind",
        "domain",
        "nominalRole",
        "positiveFlowDirection",
        "variables",
        "side",
        "order"
      ],
      "properties": {
        "name": {
          "$ref": "#/$defs/machineId"
        },
        "kind": {
          "enum": [
            "physical",
            "signal"
          ]
        },
        "domain": {
          "$ref": "#/$defs/machineId"
        },
        "nominalRole": {
          "enum": [
            "inlet",
            "outlet",
            "bidirectional",
            "input",
            "output"
          ]
        },
        "positiveFlowDirection": {
          "enum": [
            "intoComponent",
            null
          ]
        },
        "variables": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/portVariable"
          }
        },
        "side": {
          "enum": [
            "left",
            "right"
          ]
        },
        "order": {
          "type": "integer"
        }
      }
    },
    "parameter": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "name",
        "label",
        "quantity",
        "unit",
        "default",
        "minimumExclusive"
      ],
      "properties": {
        "name": {
          "type": "string",
          "pattern": "^[A-Za-z][A-Za-z0-9_]*$"
        },
        "label": {
          "type": "string",
          "minLength": 1
        },
        "quantity": {
          "type": "string",
          "minLength": 1
        },
        "unit": {
          "type": "string"
        },
        "default": {
          "type": "number"
        },
        "minimum": {
          "type": "number"
        },
        "maximum": {
          "type": "number"
        },
        "minimumExclusive": {
          "type": "boolean"
        }
      }
    },
    "component": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "type",
        "modelType",
        "modelVersion",
        "label",
        "symbol",
        "order",
        "category",
        "ports",
        "parameters"
      ],
      "properties": {
        "type": {
          "$ref": "#/$defs/machineId"
        },
        "modelType": {
          "$ref": "#/$defs/machineId"
        },
        "modelVersion": {
          "$ref": "#/$defs/version"
        },
        "label": {
          "type": "string",
          "minLength": 1
        },
        "symbol": {
          "$ref": "#/$defs/machineId"
        },
        "order": {
          "type": "integer"
        },
        "category": {
          "$ref": "#/$defs/category"
        },
        "ports": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/port"
          }
        },
        "parameters": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/parameter"
          }
        }
      }
    },
    "library": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "id",
        "label",
        "version",
        "sourcePackage",
        "temporary",
        "order",
        "categories",
        "components"
      ],
      "properties": {
        "id": {
          "$ref": "#/$defs/machineId"
        },
        "label": {
          "type": "string",
          "minLength": 1
        },
        "version": {
          "$ref": "#/$defs/version"
        },
        "sourcePackage": {
          "type": "string",
          "minLength": 1
        },
        "temporary": {
          "type": "boolean"
        },
        "order": {
          "type": "integer"
        },
        "categories": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/category"
          }
        },
        "components": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/component"
          }
        }
      }
    }
  }
}