{
    "$schema": "http://json-schema.org/schema#",
    "$id": "https://smart-data-models.github.io/data-models.OpenChannelManagement/OpenChannelSystem/schema.json",
    "title": "Open Channel Management - OpenChannelSystem",
    "modelTags": "FIWARE4WATER",
    "$schemaVersion": "0.0.1",
    "description": "This entity contains a harmonised description of a generic system made for Raw-Water (Open Channels) System Management domain. This entity represents either a system composed of different components (e.g., channels, junctions, cross-sections etc.) or just a component (e.g., a SluiceGate).",
    "type": "object",
    "allOf": [
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/Location-Commons"
        },
        {
            "$ref": "https://smart-data-models.github.io/data-models/common-schema.json#/definitions/GSMA-Commons"
        },
        {
            "properties": {
                "type": {
                    "type": "string",
                    "enum": [
                        "OpenChannelSystem"
                    ],
                    "description": "Property. NGSI-LD Entity Type. It has to be OpenChannelSystem"
                },
                "isComposedOf": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "description": "Property. Identifier format of any NGSI entity"
                        },
                        {
                            "type": "string",
                            "format": "uri",
                            "description": "Property. Identifier format of any NGSI entity"
                        }
                    ],
                    "description": "Relationship. Reference to the component entities of the open-channel system, of type Channel, Cross-Section, Junction, Regulation Structure, SluiceGate, Spillway"
                },
                "hasSubSystem": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "description": "Property. Identifier format of any NGSI entity"
                        },
                        {
                            "type": "string",
                            "format": "uri",
                            "description": "Property. Identifier format of any NGSI entity"
                        }
                    ],
                    "description": "Relationship. Reference to an entity of type OpenChannelSystem - an open-channel sub-system"
                },
                "mostUpstreamPoint": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "description": "Property. Identifier format of any NGSI entity"
                        },
                        {
                            "type": "string",
                            "format": "uri",
                            "description": "Property. Identifier format of any NGSI entity"
                        }
                    ],
                    "description": "Relationship. A relationship indicating the ID of the most upstream node (e.g., a Junction or a Cross-section) of the system"
                },
                "mostDownstreamPoint": {
                    "anyOf": [
                        {
                            "type": "string",
                            "minLength": 1,
                            "maxLength": 256,
                            "pattern": "^[\\w\\-\\.\\{\\}\\$\\+\\*\\[\\]`|~^@!,:\\\\]+$",
                            "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 most downstream node (e.g., a Junction or a Cross-section) of the system"
                }
            }
        }
    ],
    "required": [
        "id",
        "type"
    ]
}