{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://raw.githubusercontent.com/api-evangelist/cryptomus/refs/heads/main/json-schema/recurring.json",
  "title": "Cryptomus Recurring Payment Object",
  "description": "Schema for a Cryptomus recurring payment subscription object",
  "type": "object",
  "properties": {
    "uuid": {
      "type": "string",
      "format": "uuid",
      "description": "Recurring payment unique identifier"
    },
    "name": {
      "type": "string",
      "minLength": 3,
      "maxLength": 60,
      "description": "Subscription name"
    },
    "order_id": {
      "type": ["string", "null"],
      "minLength": 1,
      "maxLength": 100,
      "description": "Merchant order identifier"
    },
    "amount": {
      "type": "string",
      "description": "Payment amount"
    },
    "currency": {
      "type": "string",
      "description": "Currency code"
    },
    "payer_currency": {
      "type": "string",
      "description": "Currency the customer pays in"
    },
    "payer_amount": {
      "type": "string",
      "description": "Amount in payer currency"
    },
    "payer_amount_usd": {
      "type": "string",
      "description": "Amount in USD equivalent"
    },
    "url_callback": {
      "type": ["string", "null"],
      "format": "uri",
      "description": "Webhook endpoint for status updates"
    },
    "discount_days": {
      "type": "string",
      "description": "Introductory discount period in days"
    },
    "discount_amount": {
      "type": "string",
      "description": "Discount amount in specified currency"
    },
    "end_of_discount": {
      "type": ["string", "null"],
      "description": "Date when discount period ends"
    },
    "period": {
      "type": "string",
      "enum": ["weekly", "monthly", "three_month"],
      "description": "Billing period"
    },
    "status": {
      "type": "string",
      "enum": ["wait_accept", "active", "cancel_by_merchant", "cancel_by_user"],
      "description": "Recurring payment status"
    },
    "url": {
      "type": "string",
      "format": "uri",
      "description": "Payment page URL"
    },
    "last_pay_off": {
      "type": ["string", "null"],
      "description": "Timestamp of last payment (UTC+3)"
    }
  },
  "required": ["uuid", "name", "amount", "currency", "period", "status", "url"]
}