#import <React/RCTBridgeModule.h>
#import <React/RCTEventEmitter.h>

@interface XuqmPushModule : RCTEventEmitter <RCTBridgeModule>
@end

@implementation XuqmPushModule

RCT_EXPORT_MODULE(XuqmPushModule);

- (NSArray<NSString *> *)supportedEvents {
    return @[@"XuqmPushToken"];
}

+ (BOOL)requiresMainQueueSetup {
    return NO;
}

RCT_EXPORT_METHOD(detectVendor:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    NSString *vendor = @"APNS";
    #if TARGET_OS_SIMULATOR
        vendor = @"FCM";
    #endif
    resolve(vendor);
}

RCT_EXPORT_METHOD(registerPush:(RCTPromiseResolveBlock)resolve
                  rejecter:(RCTPromiseRejectBlock)reject) {
    dispatch_async(dispatch_get_main_queue(), ^{
        [[UIApplication sharedApplication] registerForRemoteNotifications];
        resolve(@(YES));
    });
}

// Called by the AppDelegate to report the device token
- (void)didRegisterForRemoteNotificationsWithDeviceToken:(NSData *)deviceToken {
    const unsigned char *dataBuffer = (const unsigned char *)[deviceToken bytes];
    NSUInteger dataLength = [deviceToken length];
    NSMutableString *hexString = [NSMutableString stringWithCapacity:(dataLength * 2)];
    for (NSUInteger i = 0; i < dataLength; ++i) {
        [hexString appendFormat:@"%02x", dataBuffer[i]];
    }
    NSString *token = [hexString copy];
    [self sendEventWithName:@"XuqmPushToken" body:@{@"token": token, @"vendor": @"APNS"}];
}

@end