{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/cargosmart/refs/heads/main/json-schema/cargosmart-container-schema.json",
  "title": "CargoSmart Container Tracking",
  "description": "JSON Schema for a CargoSmart container tracking record including event history and vessel information.",
  "type": "object",
  "required": ["containerId", "currentStatus"],
  "properties": {
    "containerId": {
      "type": "string",
      "description": "ISO 6346 container number (e.g., MSCU1234567)",
      "pattern": "^[A-Z]{4}\\d{7}$"
    },
    "containerType": {
      "type": "string",
      "description": "ISO container type code",
      "enum": ["20GP", "40GP", "40HC", "20RF", "40RF", "45HC"]
    },
    "carrierCode": {
      "type": "string",
      "description": "Ocean carrier SCAC code"
    },
    "vesselName": {
      "type": "string"
    },
    "voyageNumber": {
      "type": "string"
    },
    "currentStatus": {
      "type": "string",
      "enum": ["Empty", "Loaded", "OnVessel", "AtPort", "InTransit", "Delivered"]
    },
    "originPort": {
      "$ref": "#/$defs/Port"
    },
    "destinationPort": {
      "$ref": "#/$defs/Port"
    },
    "estimatedArrival": {
      "type": "string",
      "format": "date-time",
      "description": "Estimated arrival at destination port"
    },
    "actualArrival": {
      "type": "string",
      "format": "date-time",
      "description": "Actual arrival at destination port"
    },
    "events": {
      "type": "array",
      "description": "Chronological list of tracking events",
      "items": {
        "$ref": "#/$defs/TrackingEvent"
      }
    },
    "lastUpdated": {
      "type": "string",
      "format": "date-time"
    }
  },
  "$defs": {
    "Port": {
      "type": "object",
      "properties": {
        "locode": {
          "type": "string",
          "description": "UN/LOCODE (e.g., USNYC, CNSHA)",
          "pattern": "^[A-Z]{5}$"
        },
        "portName": {
          "type": "string"
        },
        "countryCode": {
          "type": "string",
          "pattern": "^[A-Z]{2}$"
        },
        "terminalName": {
          "type": "string"
        }
      }
    },
    "TrackingEvent": {
      "type": "object",
      "required": ["eventType", "eventTime"],
      "properties": {
        "eventId": {
          "type": "string"
        },
        "eventType": {
          "type": "string",
          "enum": ["GateIn", "GateOut", "Load", "Discharge", "Departure", "Arrival", "Customs", "Delivery", "EmptyReturn"]
        },
        "description": {
          "type": "string"
        },
        "location": {
          "$ref": "#/$defs/Port"
        },
        "vesselName": {
          "type": "string"
        },
        "voyageNumber": {
          "type": "string"
        },
        "eventTime": {
          "type": "string",
          "format": "date-time"
        },
        "isActual": {
          "type": "boolean",
          "description": "true = actual event, false = estimated event"
        }
      }
    }
  }
}