{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://json-schema.org/openstudio-urban-modeling/district_system_properties.json#",
  "title": "URBANopt District System",
  "description": "Schema for an URBANopt District System object",
  "type": "object",
  "properties": {
    "id": {
      "description": "Unique id used to refer to this feature within this dataset.",
      "type": "string"
    },
    "project_id": {
      "description": "Project which this feature belongs to.",
      "type": "string"
    },
    "type": {
      "description": "Type of feature.",
      "type": "string",
      "enum": [
        "District System"
      ]
    },
    "source_name": {
      "description": "Name of the original data source.",
      "type": "string"
    },
    "source_id": {
      "description": "Id of the feature in original data source.",
      "type": "string"
    },
    "name": {
      "description": "Feature name",
      "type": "string"
    },
    "legal_name": {
      "description": "Legal name used to identify this feature.",
      "type": "string"
    },
    "address": {
      "description": "Street address",
      "type": "string"
    },
    "district_system_type": {
      "$ref": "#/definitions/districtSystemType"
    },
    "footprint_area": {
      "description": "Area of the footprint (ft^2).  Calculated on export.",
      "type": "number"
    },
    "detailed_model_filename": {
      "description": "Name of a detailed model which can be loaded from disk as a seed model or complete model. Mapper class decides which measures to disable if this is present.",
      "type": "string"
    },
    "weather_filename": {
      "description": "Name of EPW weather file for this district system. Defaults to site's weather_filename.",
      "type": "string"
    },
    "tariff_filename": {
      "description": "Name of the tariff file for this district system. Defaults to site's tariff_filename.",
      "type": "string"
    },
    "equipment": {
      "description": "List of equipment in this plant. This is no longer used for Electrical workflow; use electrical_catalog_name field istead.",
      "type": "array",
      "items": {
          "$ref": "#/definitions/equipmentType",
          "type": "string"
      }
    },
    "associated_building_id": {
      "description": "ID of the building associated with the Ground-Mount PV System",
      "type": "string"
    },
    "electrical_catalog_name": {
      "description": "Name of the equipment as specified in the OpenDSS/RNM electrical catalog (extended_catalog.json)",
      "type": "string"
    },
    "phases": {
      "description": "Equipment Phases information. Required by the OpenDSS workflow. Example: ['A', 'B', 'C']",
      "type": "array"
    },
    "user_data": {
      "description": "Arbitrary user data"
    }
  },
  "required": [
    "type",
    "district_system_type"
  ],
  "additionalProperties": false,
  "definitions": {
    "districtSystemType": {
      "description": "Type of district system.",
      "type": "string",
      "enum": [
        "Central Chilled Water",
        "Central Hot Water",
        "Central Hot and Chilled Water",
		    "Central Ambient Water",
		    "Central Hot and Cold Water", 
		    "Community Photovoltaic", 
        "Ground Mount Photovoltaic",
        "Transformer",
        "Transformer with Storage",
		    "Capacitor",
		    "Electrical Substation" 
      ]
    },
    "equipmentType": {
      "description": "Type of districct energy system equipment, listed in order of load served.",
      "type": "string",
      "enum": [
        "Air-Cooled Chiller--Cold Water",
        "Air-Cooled Chiller--Ambient Water",
        "Water-Cooled Chiller--Cold Water",
        "Water-Cooled Chiller---Ambient Water",
        "Cooling Tower--Heat Rejection from Chiller, Cold Water",
        "Cooling Tower--Heat Rejection from Chiller, Ambient Water",
        "Cooling Tower--Direct--Chilled Water",
        "Cooling Tower--Direct--Ambient Water",
        "Boiler--Hot Water",
        "Boiler--Ambient Water",
        "Boiler--Combined Heat and Power--Hot Water",
        "Boiler--Combined Heat and Power--Ambient Water",
        "Water to Water Heat Pump--Ambient Water",
        "Water to Water Heat Pump--Cold Water",
        "Water to Water Heat Pump--Hot Water",
        "Air to Water Heat Pump--Ambient Water",
        "Air to Water Heat Pump--Cold Water",
        "Air to Water Heat Pump--Hot Water",
        "Ground Source Heat Pump--Ambient Water",
        "Ground Source Heat Pump--Cold Water",
        "Ground Source Heat Pump--Hot Water",
        "Solar Thermal Array--Ambient Water",
        "Solar Thermal Array--Hot Water",
        "Storage--Hot Water",
        "Storage--Cold Water",
        "Storage--Ambient Water",
        "Waste Heat Source--Hot Water",
        "Waste Heat Source--Ambient Water"
      ]
    }
  }
}