#import "FlutterPaystackPlugin.h"

#import <sys/utsname.h>

#import "PSTCKRSA.h"

#import "PSTCKAuthViewController.h"

@implementation FlutterPaystackPlugin {

UIViewController *_viewController;

}

+ (void)registerWithRegistrar:(NSObject<FlutterPluginRegistrar>*)registrar {

FlutterMethodChannel* channel = [FlutterMethodChannel

methodChannelWithName:@"flutter_paystack"

binaryMessenger:[registrar messenger]];

UIViewController *viewController =

[UIApplication sharedApplication].delegate.window.rootViewController;

FlutterPaystackPlugin* instance = [[FlutterPaystackPlugin alloc] initWithViewController: viewController];

[registrar addMethodCallDelegate:instance channel:channel];

}

- (instancetype)initWithViewController:(UIViewController *)viewController {

self = [super init];

if (self) {

_viewController = viewController;

}

return self;

}

- (void)handleMethodCall:(FlutterMethodCall*)call result:(FlutterResult)result {

if ([@"getDeviceId" isEqualToString:call.method]) {

result([@"iossdk_" stringByAppendingString:[[[UIDevice currentDevice] identifierForVendor] UUIDString]]);

} else if([@"getUserAgent" isEqualToString:call.method]) {

result([self.class paystackUserAgentDetails]);

} else if([@"getVersionCode" isEqualToString:call.method]) {

result(PSTCKSDKBuild);

} else if([@"getAuthorization" isEqualToString:call.method]) {

NSDictionary *arguments = [call arguments];

NSString *url = arguments[@"authUrl"];

[self requestAuth:url result: result];

} else if([@"getEncryptedData" isEqualToString:call.method]) {

NSDictionary *arguments = [call arguments];

NSString *data = arguments[@"stringData"];

result([PSTCKRSA encryptRSA:data]);

} else {

result(FlutterMethodNotImplemented);

}

}

- (void) requestAuth:(NSString * _Nonnull) url result:(FlutterResult)result {

PSTCKAuthViewController* authorizer = [[[PSTCKAuthViewController alloc] init]

initWithURL:[NSURL URLWithString:url]

handler:^{

[self->_viewController dismissViewControllerAnimated:YES completion:nil];

NSDictionary *response = @{ @"status": @"requery", @"message": @"Reaffirm Transaction Status on Server"};

result([[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:[response copy] options:0 error:NULL] encoding:NSUTF8StringEncoding]);

}];

UINavigationController *nc = [[UINavigationController alloc] initWithRootViewController:authorizer];

if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {

nc.modalPresentationStyle = UIModalPresentationFormSheet;

}

[self->_viewController presentViewController:nc animated:YES completion:nil];

}

+ (NSString *)paystackUserAgentDetails {

NSMutableDictionary *details = [@{

@"lang": @"objective-c",

@"bindings_version": PSTCKSDKVersion,

} mutableCopy];

#if TARGET_OS_IPHONE

NSString *version = [UIDevice currentDevice].systemVersion;

if (version) {

details[@"os_version"] = version;

}

struct utsname systemInfo;

uname(&systemInfo);

NSString *deviceType = @(systemInfo.machine);

if (deviceType) {

details[@"type"] = deviceType;

}

NSString *model = [UIDevice currentDevice].localizedModel;

if (model) {

details[@"model"] = model;

}

if ([[UIDevice currentDevice] respondsToSelector:@selector(identifierForVendor)]) {

NSString *vendorIdentifier = [[[UIDevice currentDevice] performSelector:@selector(identifierForVendor)] performSelector:@selector(UUIDString)];

if (vendorIdentifier) {

details[@"vendor_identifier"] = vendorIdentifier;

}

}

#endif

return [[NSString alloc] initWithData:[NSJSONSerialization dataWithJSONObject:[details copy] options:0 error:NULL] encoding:NSUTF8StringEncoding];

}