//

// PaystackError.m

// Paystack

//

#import "PaystackError.h"

#import "PSTCKFormEncoder.h"

NSString *const PaystackDomain = @"com.paystack.lib";

NSString *const PSTCKCardErrorCodeKey = @"com.paystack.lib:CardErrorCodeKey";

NSString *const PSTCKErrorMessageKey = @"com.paystack.lib:ErrorMessageKey";

NSString *const PSTCKErrorParameterKey = @"com.paystack.lib:ErrorParameterKey";

NSString *const PSTCKInvalidNumber = @"com.paystack.lib:InvalidNumber";

NSString *const PSTCKInvalidExpMonth = @"com.paystack.lib:InvalidExpiryMonth";

NSString *const PSTCKInvalidExpYear = @"com.paystack.lib:InvalidExpiryYear";

NSString *const PSTCKInvalidCVC = @"com.paystack.lib:InvalidCVC";

NSString *const PSTCKIncorrectNumber = @"com.paystack.lib:IncorrectNumber";

NSString *const PSTCKExpiredCard = @"com.paystack.lib:ExpiredCard";

NSString *const PSTCKCardDeclined = @"com.paystack.lib:CardDeclined";

NSString *const PSTCKProcessingError = @"com.paystack.lib:ProcessingError";

NSString *const PSTCKIncorrectCVC = @"com.paystack.lib:IncorrectCVC";

@implementation NSError(Paystack)

+ (NSError *)pstck_errorFromPaystackResponse:(NSDictionary *)jsonDictionary {

NSString *status = [jsonDictionary[@"status"] description];

if (![status isEqual: @"0"]) {

return nil;

}

NSString *devMessage = jsonDictionary[@"message"];

// There should always be a message for the error

if (devMessage == nil) {

NSDictionary *userInfo = @{

NSLocalizedDescriptionKey: @"Could not interpret the error response that was returned from Paystack.",

PSTCKErrorMessageKey: @"Could not interpret the error response that was returned from Paystack."

};

return [[NSError alloc] initWithDomain:PaystackDomain code:PSTCKAPIError userInfo:userInfo];

}

NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];

userInfo[PSTCKErrorMessageKey] = devMessage;

return [[NSError alloc] initWithDomain:PaystackDomain code:0 userInfo:userInfo];

}

- (NSError *)pstck_errorFromPaystackResponseOld:(NSDictionary *)jsonDictionary {

NSDictionary *errorDictionary = jsonDictionary[@"error"];

if (!errorDictionary) {

return nil;

}

NSString *type = errorDictionary[@"type"];

NSString *devMessage = errorDictionary[@"message"];

NSString *parameter = errorDictionary[@"param"];

NSInteger code = 0;

// There should always be a message and type for the error

if (devMessage == nil || type == nil) {

NSDictionary *userInfo = @{

NSLocalizedDescriptionKey: @"Could not interpret the error response that was returned from Paystack.",

PSTCKErrorMessageKey: @"Could not interpret the error response that was returned from Paystack."

};

return [[NSError alloc] initWithDomain:PaystackDomain code:PSTCKAPIError userInfo:userInfo];

}

NSMutableDictionary *userInfo = [NSMutableDictionary dictionary];

userInfo[PSTCKErrorMessageKey] = devMessage;

if (parameter) {

userInfo[PSTCKErrorParameterKey] = [PSTCKFormEncoder stringByReplacingSnakeCaseWithCamelCase:parameter];

}

if ([type isEqualToString:@"api_error"]) {

code = PSTCKAPIError;

userInfo[NSLocalizedDescriptionKey] = PSTCKUnexpectedError;

} else if ([type isEqualToString:@"invalid_request_error"]) {

code = PSTCKInvalidRequestError;

userInfo[NSLocalizedDescriptionKey] = devMessage;

} else if ([type isEqualToString:@"card_error"]) {

code = PSTCKCardError;

NSDictionary *errorCodes = @{

@"incorrect_number": @{@"code": PSTCKIncorrectNumber, @"message": PSTCKCardErrorInvalidNumberUserMessage},

@"invalid_number": @{@"code": PSTCKInvalidNumber, @"message": PSTCKCardErrorInvalidNumberUserMessage},

@"invalid_expiry_month": @{@"code": PSTCKInvalidExpMonth, @"message": PSTCKCardErrorInvalidExpMonthUserMessage},

@"invalid_expiry_year": @{@"code": PSTCKInvalidExpYear, @"message": PSTCKCardErrorInvalidExpYearUserMessage},

@"invalid_cvc": @{@"code": PSTCKInvalidCVC, @"message": PSTCKCardErrorInvalidCVCUserMessage},

@"expired_card": @{@"code": PSTCKExpiredCard, @"message": PSTCKCardErrorExpiredCardUserMessage},

@"incorrect_cvc": @{@"code": PSTCKIncorrectCVC, @"message": PSTCKCardErrorInvalidCVCUserMessage},

@"card_declined": @{@"code": PSTCKCardDeclined, @"message": PSTCKCardErrorDeclinedUserMessage},

@"processing_error": @{@"code": PSTCKProcessingError, @"message": PSTCKCardErrorProcessingErrorUserMessage},

};

NSDictionary *codeMapEntry = errorCodes[errorDictionary[@"code"]];

if (codeMapEntry) {

userInfo[PSTCKCardErrorCodeKey] = codeMapEntry[@"code"];

userInfo[NSLocalizedDescriptionKey] = codeMapEntry[@"message"];

} else {

userInfo[PSTCKCardErrorCodeKey] = errorDictionary[@"code"];

userInfo[NSLocalizedDescriptionKey] = devMessage;

}

}

return [[NSError alloc] initWithDomain:PaystackDomain code:code userInfo:userInfo];

}

@end