{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://api.chargedesk.com/v1/schema/charge",
  "title": "Charge",
  "description": "A payment charge record in ChargeDesk",
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Unique charge identifier"
    },
    "object": {
      "type": "string",
      "const": "charge"
    },
    "status": {
      "type": "string",
      "description": "Current status of the charge",
      "enum": [
        "pending",
        "paid",
        "partially refunded",
        "refunded",
        "failed",
        "authorized",
        "void",
        "invoiced",
        "invoice canceled",
        "unpaid",
        "past due",
        "subscription pending",
        "disputed",
        "trial",
        "credit",
        "uncollectible",
        "open",
        "draft",
        "unclaimed"
      ]
    },
    "amount": {
      "type": "number",
      "description": "Charge amount in the specified currency"
    },
    "currency": {
      "type": "string",
      "description": "3-letter ISO 4217 currency code",
      "minLength": 3,
      "maxLength": 3
    },
    "amount_refunded": {
      "type": "number",
      "description": "Total amount that has been refunded",
      "minimum": 0
    },
    "description": {
      "type": "string",
      "description": "Human-readable description of the charge"
    },
    "transaction_id": {
      "type": "string",
      "description": "Transaction ID from the payment gateway"
    },
    "last_4_digits": {
      "type": "string",
      "description": "Last 4 digits of the payment card",
      "pattern": "^[0-9]{4}$"
    },
    "customer": {
      "type": "object",
      "description": "Customer associated with this charge",
      "properties": {
        "id": { "type": "string" },
        "email": { "type": "string", "format": "email" },
        "name": { "type": "string" }
      }
    },
    "product": {
      "type": "object",
      "description": "Product associated with this charge",
      "properties": {
        "id": { "type": "string" },
        "name": { "type": "string" }
      }
    },
    "subscription": {
      "type": "object",
      "description": "Subscription this charge belongs to",
      "properties": {
        "id": { "type": "string" }
      }
    },
    "lines": {
      "type": "array",
      "description": "Line items included in the charge",
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "string" },
          "description": { "type": "string" },
          "amount": { "type": "number" },
          "quantity": { "type": "integer", "minimum": 1 },
          "currency": { "type": "string" }
        }
      }
    },
    "metadata": {
      "type": "object",
      "description": "Arbitrary key-value metadata",
      "additionalProperties": { "type": "string" }
    },
    "occurred": {
      "type": "string",
      "format": "date-time",
      "description": "When the charge occurred"
    },
    "pay_link": {
      "type": "string",
      "format": "uri",
      "description": "Payment link URL for payment requests"
    }
  },
  "required": ["amount", "currency"]
}