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//
// GetCompletionStatusOperation.m
// Mobile Buy SDK Advanced Sample
//
// Created by Shopify.
// Copyright (c) 2015 Shopify Inc. All rights reserved.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#import "GetCompletionStatusOperation.h"
@interface GetCompletionStatusOperation ()
@property (nonatomic, strong) BUYCheckout *checkout;
@property (nonatomic, strong) BUYClient *client;
@property (nonatomic, assign) BOOL done;
@property (nonatomic, strong) NSURLSessionDataTask *task;
@property (nonatomic) BUYStatus completionStatus;
@end
@implementation GetCompletionStatusOperation
- (instancetype)initWithClient:(BUYClient *)client withCheckout:(BUYCheckout *)checkout;
{
NSParameterAssert(client);
NSParameterAssert(checkout);
self = [super init];
if (self) {
self.checkout = checkout;
self.client = client;
}
return self;
}
- (BOOL)isFinished
{
return [super isFinished] && self.done;
}
- (void)cancel
{
[self.task cancel];
[super cancel];
}
- (void)main
{
[self pollForCompletionStatus];
}
- (void)pollForCompletionStatus
{
__block BUYStatus completionStatus = BUYStatusUnknown;
if (self.isCancelled) {
return;
}
self.task = [self.client getCompletionStatusOfCheckout:self.checkout completion:^(BUYStatus status, NSError *error) {
completionStatus = status;
if (status == BUYStatusProcessing) {
dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(0.5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
[self pollForCompletionStatus];
});
}
else {
self.completionStatus = status;
[self willChangeValueForKey:@"isFinished"];
self.done = YES;
[self didChangeValueForKey:@"isFinished"];
if (error) {
[self.delegate operation:self failedToReceiveCompletionStatus:error];
}
else {
[self.delegate operation:self didReceiveCompletionStatus:status];
}
}
}];
}
@end