{
  "$id": "https://commandlayer.org/schemas/v1.1.0/commercial/checkout/receipts/checkout.receipt.schema.json",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "checkout.receipt",
  "description": "Receipt schema for a completed or failed checkout operation.",
  "allOf": [
    {
      "$ref": "https://commandlayer.org/schemas/v1.1.0/_shared/receipt.base.schema.json"
    },
    {
      "type": "object",
      "properties": {
        "result": {
          "description": "Checkout outcome payload.",
          "type": "object",
          "additionalProperties": false,
          "required": ["order_id", "status"],
          "properties": {
            "order_id": {
              "description": "Provider-assigned canonical order identifier.",
              "type": "string",
              "minLength": 1,
              "maxLength": 128
            },
            "status": {
              "description": "Order/checkout status.",
              "type": "string",
              "enum": ["created", "authorized", "captured", "failed", "canceled"]
            },
            "amount": {
              "description": "Canonical settled or authorized amount.",
              "allOf": [
                {
                  "$ref": "https://commandlayer.org/schemas/v1.1.0/commercial/_shared/payment.amount.schema.json"
                }
              ]
            },
            "settlement": {
              "description": "Canonical settlement target.",
              "allOf": [
                {
                  "$ref": "https://commandlayer.org/schemas/v1.1.0/commercial/_shared/payment.settlement.schema.json"
                }
              ]
            },
            "line_items": {
              "description": "Resolved line items used in this order.",
              "type": "array",
              "items": {
                "type": "object",
                "additionalProperties": true
              }
            },
            "reason": {
              "description": "Optional explanation for failure or cancellation.",
              "type": "string",
              "maxLength": 1024
            },
            "metadata": {
              "description": "Provider-specific non-normative metadata.",
              "type": "object",
              "additionalProperties": true
            }
          }
        },
        "usage": {
          "description": "Optional resource usage metrics.",
          "type": "object",
          "additionalProperties": true
        }
      },
      "required": ["result"]
    }
  ]
}