{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "OpenAirframes Community Submission (v1)",
  "type": "object",
  "additionalProperties": false,
  "properties": {
    "registration_number": {
      "type": "string",
      "minLength": 1
    },
    "transponder_code_hex": {
      "type": "string",
      "pattern": "^[0-9A-F]{6}$"
    },
    "openairframes_id": {
      "type": "string",
      "minLength": 1
    },
    "contributor_uuid": {
      "type": "string",
      "format": "uuid"
    },
    "contributor_name": {
      "type": "string",
      "minLength": 0,
      "maxLength": 150,
      "description": "Display name (may be blank)"
    },
    "creation_timestamp": {
      "type": "string",
      "format": "date-time",
      "description": "Set by the system when the submission is persisted/approved.",
      "readOnly": true
    },
    "start_date": {
      "type": "string",
      "format": "date",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "Optional start date for when this submission's tags are valid (ISO 8601, e.g., 2025-05-01)."
    },
    "end_date": {
      "type": "string",
      "format": "date",
      "pattern": "^\\d{4}-\\d{2}-\\d{2}$",
      "description": "Optional end date for when this submission's tags are valid (ISO 8601, e.g., 2025-07-03)."
    },
    "tags": {
      "type": "object",
      "description": "Additional community-defined tags as key/value pairs (values may be scalar, array, or object).",
      "propertyNames": {
        "type": "string",
        "pattern": "^[a-z][a-z0-9_]{0,63}$"
      },
      "additionalProperties": {
        "$ref": "#/$defs/tagValue"
      },
      "properties": {
        "citation_0": {
          "type": "string"
        },
        "icao_aircraft_type": {
          "type": "string"
        },
        "manufacturer_icao": {
          "type": "string"
        },
        "manufacturer_name": {
          "type": "string"
        },
        "model": {
          "type": "string"
        },
        "operator": {
          "type": "string"
        },
        "operator_callsign": {
          "type": "string"
        },
        "operator_icao": {
          "type": "string"
        },
        "serial_number": {
          "type": "string"
        },
        "type_code": {
          "type": "string"
        }
      }
    }
  },
  "allOf": [
    {
      "anyOf": [
        {
          "required": [
            "registration_number"
          ]
        },
        {
          "required": [
            "transponder_code_hex"
          ]
        },
        {
          "required": [
            "openairframes_id"
          ]
        }
      ]
    }
  ],
  "$defs": {
    "tagScalar": {
      "type": [
        "string",
        "number",
        "integer",
        "boolean",
        "null"
      ]
    },
    "tagValue": {
      "anyOf": [
        {
          "$ref": "#/$defs/tagScalar"
        },
        {
          "type": "array",
          "maxItems": 50,
          "items": {
            "$ref": "#/$defs/tagScalar"
          }
        },
        {
          "type": "object",
          "maxProperties": 50,
          "additionalProperties": {
            "$ref": "#/$defs/tagScalar"
          }
        }
      ]
    }
  }
}