// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

[JavaPackage="org.chromium.mojom.payments"]
module blink.mojom;

// The shipping address that the browser process provides to the renderer
// process. Built either by the browser or a payment app.
struct ShippingAddress {
  // ISO 3166 country code. Two upper case ASCII letters.
  string region_code;

  array<string> address_line;
  string administrative_area;
  string locality;
  string dependent_locality;
  string postal_code;
  string sorting_code;

  // Optional shortest ISO 639 language code. Two or three lower case ASCII
  // letters.
  string language_code;

  // Optional ISO 15924 script code. Four ASCII letters. The first letter is
  // upper case; the rest are lower case.
  string script_code;

  string organization;
  string recipient;
};

struct PaymentResponse {
  string method_name;

  // Payment method specific JSON string that is built either by the browser or
  // a payment app, for example Android Pay. Browser ensures that the string can
  // be successfully parsed into base::JSONParser. Renderer parses this string
  // via v8::JSON::Parse() and hands off the result to the merchant website.
  // There's no one format for this object, so richer types cannot be used. A
  // simple example:
  //
  // {"nameOnCard": "Jon Doe", "pan": "4111 1111 1111 1111"}
  string stringified_details;
};

interface PaymentRequestClient {
  OnShippingAddressChange(ShippingAddress address);
  OnShippingOptionChange(string shipping_option_id);
  OnPaymentResponse(PaymentResponse response);
  OnError();
  OnComplete();
};

// The currency amount that the renderer provides to the browser process. The
// browser shows the amount in UI and forwards it on to the payment app, if it
// requires the amount.
struct CurrencyAmount {
  // ISO 4217 currency code. Three upper case ASCII letters.
  string currency_code;

  // ISO 20022 CurrencyAnd30Amount. Up to 30 total digits. Up to 10 fraction
  // digits. Separated by a dot.
  string value;
};

struct PaymentItem {
  string id;
  string label;
  CurrencyAmount amount;
};

struct ShippingOption {
  string id;
  string label;
  CurrencyAmount amount;
};

struct PaymentDetails {
  array<PaymentItem> items;
  array<ShippingOption> shipping_options;
};

struct PaymentOptions {
  bool request_shipping;
};

interface PaymentRequest {
  SetClient(PaymentRequestClient client);
  Show(array<string> supported_methods,
       PaymentDetails details,
       PaymentOptions options,
       // A JSON string built by the renderer from a JavaScript object that the
       // merchant website provides. The renderer uses
       // blink::JSONObject::toJSONString() to generate this string. The browser
       // parses the string via base::JSONParser and passes a part of the JSON
       // object to the payment app, for example Android Pay. There's no one
       // format for this object, so richer types cannot be used. A simple
       // example:
       //
       // {"https://android.com/pay": {"gateway": "stripe"}}
       string stringified_data);
  Abort();
  Complete(bool success);
};