ShopifyCheckoutKit.mm

#import <React/RCTBridgeModule.h>
#import <React/RCTViewManager.h>
#import <RNShopifyCheckoutKitSpec/RNShopifyCheckoutKitSpec.h>
#import <objc/runtime.h>

// Registers the Swift module class (ShopifyCheckoutKit.swift) with the RN
// runtime under the name 'RCTShopifyCheckoutKit', extending the codegen
// base class so TurboModule dispatch can find it.
//
// Method declarations (`RCT_EXTERN_METHOD`) are intentionally absent for most
// methods: the codegen-generated `NativeShopifyCheckoutKitSpecJSI` invokes
// each method via its `@objc` selector directly (see ShopifyCheckoutKit.swift).
// `setConfig` is declared so ObjCTurboModule sees the Swift selector's
// NSDictionary argument and does not apply codegen's C++ struct conversion before
// invoking Swift.
@interface RCT_EXTERN_MODULE (RCTShopifyCheckoutKit, NativeShopifyCheckoutKitSpecBase)

RCT_EXTERN_METHOD(setConfig:(NSDictionary *)configuration)

RCT_EXTERN_METHOD(present:(NSString *)checkoutURL
                  subscribedMethods:(NSArray *)subscribedMethods)

@end

static const void *RCTShopifyCheckoutKitEventEmitterCallbackKey =
    &RCTShopifyCheckoutKitEventEmitterCallbackKey;

// Swift cannot directly subclass/import the codegen-generated
// NativeShopifyCheckoutKitSpecBase in this CocoaPods setup. The TurboModule
// runtime still calls `setEventEmitterCallback:` on the module instance, so this
// Objective-C++ category stores that generated callback and exposes a small
// selector Swift can call to emit the typed `onDispatch` event.
@implementation RCTShopifyCheckoutKit (DispatchEmitter)

- (void)setEventEmitterCallback:(EventEmitterCallbackWrapper *)eventEmitterCallbackWrapper
{
  objc_setAssociatedObject(
      self,
      RCTShopifyCheckoutKitEventEmitterCallbackKey,
      eventEmitterCallbackWrapper,
      OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (void)emitOnDispatchFromSwift:(NSString *)value
{
  EventEmitterCallbackWrapper *eventEmitterCallbackWrapper =
      (EventEmitterCallbackWrapper *)objc_getAssociatedObject(
          self, RCTShopifyCheckoutKitEventEmitterCallbackKey);

  if (eventEmitterCallbackWrapper == nil) {
    return;
  }

  eventEmitterCallbackWrapper->_eventEmitterCallback("onDispatch", value);
}

@end

// TurboModule registration. `RCTModuleProviders` (generated by codegen from
// `package.json → codegenConfig.ios.modulesProvider`) looks up classes that
// `respondsToSelector:@selector(getTurboModule:)`. Without this category,
// our Swift class would not appear in the providers map and JS calls would
// fall back to the legacy bridge — which has no methods declared here and
// no sync support.
@interface RCTShopifyCheckoutKit (TurboModule) <RCTTurboModule>
- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:
    (const facebook::react::ObjCTurboModule::InitParams &)params;
@end

@implementation RCTShopifyCheckoutKit (TurboModule)
- (std::shared_ptr<facebook::react::TurboModule>)getTurboModule:
    (const facebook::react::ObjCTurboModule::InitParams &)params
{
  return std::make_shared<facebook::react::NativeShopifyCheckoutKitSpecJSI>(
      params);
}
@end

/**
 * AcceleratedCheckoutButtons View Manager
 */
@interface RCT_EXTERN_MODULE (RCTAcceleratedCheckoutButtonsManager, RCTViewManager)

/**
 * Unified checkout identifier payload.
 * Accepts either { cartId } or { variantId, quantity }.
 */
RCT_EXPORT_VIEW_PROPERTY(checkoutIdentifier, NSDictionary*)

/**
 * Corner radius for rendered buttons, in points. Defaults to 8.
 */
RCT_EXPORT_VIEW_PROPERTY(cornerRadius, NSNumber*)

/**
 * Wallets to render. Accepts an array of identifiers such as "shopPay" and "applePay".
 * If omitted, native defaults are used.
 */
RCT_EXPORT_VIEW_PROPERTY(wallets, NSArray*)

/**
 * Label variant for the Apple Pay button (e.g., "plain", "buy", "checkout").
 */
RCT_EXPORT_VIEW_PROPERTY(applePayLabel, NSString*)

/**
 * Style variant for the Apple Pay button (e.g., "automatic", "black", "white", "whiteOutline").
 */
RCT_EXPORT_VIEW_PROPERTY(applePayStyle, NSString*)

/**
 * Emitted when checkout fails. Payload contains a CheckoutException-like shape.
 */
RCT_EXPORT_VIEW_PROPERTY(onFail, RCTBubblingEventBlock)

/**
 * Emitted when checkout is cancelled by the buyer.
 */
RCT_EXPORT_VIEW_PROPERTY(onCancel, RCTBubblingEventBlock)

/**
 * Emitted when the native render state changes. Values: "loading", "rendered", "error".
 */
RCT_EXPORT_VIEW_PROPERTY(onRenderStateChange, RCTBubblingEventBlock)

/**
 * Emitted when a link is clicked within the checkout experience. Payload contains the URL.
 */
RCT_EXPORT_VIEW_PROPERTY(onClickLink, RCTBubblingEventBlock)

/**
 * Emitted when a subscribed Checkout Protocol event fires. Payload contains { value } where value is a JSON envelope.
 */
RCT_EXPORT_VIEW_PROPERTY(onDispatch, RCTDirectEventBlock)

/**
 * Emitted when the intrinsic height of the native view changes. Payload contains { height }.
 */
RCT_EXPORT_VIEW_PROPERTY(onSizeChange, RCTDirectEventBlock)

@end