{
  "$schema": "http://json-schema.org/schema#",
  "$id": "https://smart-data-models.github.io/data-models.OpenChannelManagement/PhotovoltaicDevice/schema.json",
  "title": "Open Channel Management - Channel",
  "description": "This entity contains a harmonised description of a generic Channel made for Raw-Water (Open Channels) System Management domain.",
  "$schemaVersion": "0.0.1",
  "type": "object",
  "allOf": [
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
    },
    {
      "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
    },
    {
      "properties": {
        "type": {
          "type": "string",
          "enum": [
            "OpenChannel"
          ],
          "description": "Property. NGSI-LD Entity Type. it has to be OpenChannel"
        },
        "downstreamNode": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. A relationship indicating the ID of the downstream node (e.g., Junction, Regulation Structure), where the channel ends."
        },
        "upstreamNode": {
          "anyOf": [
            {
              "type": "string",
              "minLength": 1,
              "maxLength": 256,
              "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
              "description": "Property. Identifier format of any NGSI entity"
            },
            {
              "type": "string",
              "format": "uri",
              "description": "Property. Identifier format of any NGSI entity"
            }
          ],
          "description": "Relationship. A relationship indicating the ID of the upstream node (e.g., Junction, Regulation Structure), where the channel begins."
        },
        "tag": {
          "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/tag"
        },
        "geometryType": {
          "type": "string",
          "description": "Property. The geometry of the channel. Enum:'Trapezoidal, Circular'].",
          "enum": [
            "Circular",
            "Trapezoidal"
          ]
        },
        "bottomSlope": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The bottom slope of the channel. All units are accepted in CEFACT code."
        },
        "leftSideSlope": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The slope of the left bank of the channel (for 'Trapezoidal' geometry). All units are accepted in CEFACT code."
        },
        "rightSideSlope": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The slope of the right bank of the channel (for 'Trapezoidal' geometry). All units are accepted in CEFACT code."
        },
        "bottomWidth": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The bottom width of the channel (for 'Trapezoidal' geometry). All units are accepted in CEFACT code."
        },
        "diameter": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The diameter of a circular channel. All units are accepted in CEFACT code."
        },
        "maxWaterDepth": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The maximum allowable water depth in the channel. All units are accepted in CEFACT code."
        },
        "roughnessCoefficient": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The Manning’s roughness coefficient."
        },
        "flowType": {
          "type": "string",
          "description": "Property. Text defining the type of flow in the channel. Enum:'Free-Surface flow'.",
          "enum": [
            "Free-Surface flow"
          ]
        },
        "celerity": {
          "type": "number",
          "minimum": 0,
          "description": "Property. Velocity of a surge propagated along the channel after the opening or close of a sluice gate."
        },
        "travelDuration": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The duration of the surge travelling from the downstream node (i.e., Regulation Structure) to the upstream node."
        },
        "waterLoss": {
          "type": "object",
          "minimum": 0,
          "description": "Property. Water leakages/losses from the channel - percentage of flow of the channel or a number (flow)."
        },
        "length": {
          "type": "number",
          "minimum": 0,
          "description": "Property. The length of the channel. All units are accepted in CEFACT code."
        }
      }
    }
  ],
  "required": [
    "id",
    "type"
  ]
}