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//
// SDLRPCRequestOperation.m
// SmartDeviceLink
//
// Created by Joel Fischer on 1/30/18.
// Copyright © 2018 smartdevicelink. All rights reserved.
//
#import "SDLAsynchronousRPCRequestOperation.h"
#import "SDLConnectionManagerType.h"
#import "SDLError.h"
#import "SDLGlobals.h"
NS_ASSUME_NONNULL_BEGIN
@interface SDLAsynchronousRPCRequestOperation ()
@property (weak, nonatomic) id<SDLConnectionManagerType> connectionManager;
@property (copy, nonatomic, nullable) SDLMultipleAsyncRequestProgressHandler progressHandler;
@property (copy, nonatomic, nullable) SDLMultipleRequestCompletionHandler completionHandler;
@property (copy, nonatomic, nullable) SDLResponseHandler responseHandler;
@property (strong, nonatomic) NSUUID *operationId;
@property (assign, nonatomic) NSUInteger requestsComplete;
@property (assign, nonatomic) NSUInteger requestsStarted;
@property (assign, nonatomic, readonly) float percentComplete;
@property (assign, nonatomic) BOOL requestFailed;
@end
@implementation SDLAsynchronousRPCRequestOperation {
BOOL executing;
BOOL finished;
}
- (instancetype)init {
self = [super init];
if (!self) { return nil; }
executing = NO;
finished = NO;
_operationId = [NSUUID UUID];
_requestsComplete = 0;
_requestsStarted = 0;
_requestFailed = NO;
return self;
}
- (instancetype)initWithConnectionManager:(id<SDLConnectionManagerType>)connectionManager requests:(NSArray<SDLRPCRequest *> *)requests progressHandler:(nullable SDLMultipleAsyncRequestProgressHandler)progressHandler completionHandler:(nullable SDLMultipleRequestCompletionHandler)completionHandler {
self = [self init];
_connectionManager = connectionManager;
_requests = requests;
_progressHandler = progressHandler;
_completionHandler = completionHandler;
return self;
}
- (instancetype)initWithConnectionManager:(id<SDLConnectionManagerType>)connectionManager request:(SDLRPCRequest *)request responseHandler:(nullable SDLResponseHandler)responseHandler {
self = [self init];
_connectionManager = connectionManager;
_requests = @[request];
_responseHandler = responseHandler;
return self;
}
- (void)start {
[super start];
[self sdl_sendRequests];
}
- (void)sdl_sendRequests {
for (SDLRPCRequest *request in self.requests) {
if (self.isCancelled) {
[self sdl_abortOperationWithRequest:request];
break;
}
[self sdl_sendRequest:request];
self.requestsStarted++;
}
}
- (void)sdl_sendRequest:(SDLRPCRequest *)request {
__weak typeof(self) weakSelf = self;
[self.connectionManager sendConnectionRequest:request withResponseHandler:^(__kindof SDLRPCRequest * _Nullable request, __kindof SDLRPCResponse * _Nullable response, NSError * _Nullable error) {
__strong typeof(self) strongSelf = weakSelf;
if (strongSelf.isCancelled) {
[self sdl_abortOperationWithRequest:request];
BLOCK_RETURN;
}
strongSelf.requestsComplete++;
// If this request failed set our internal request failed to YES
if (error != nil) {
strongSelf.requestFailed = YES;
}
if (strongSelf.progressHandler != NULL) {
strongSelf.progressHandler(request, response, error, strongSelf.percentComplete);
} else if (strongSelf.responseHandler != NULL) {
strongSelf.responseHandler(request, response, error);
}
// If we've received responses for all requests, call the completion handler.
if (strongSelf.requestsComplete >= strongSelf.requests.count) {
[strongSelf finishOperation];
}
}];
}
- (void)sdl_abortOperationWithRequest:(SDLRPCRequest *)request {
if (self.isFinished) { return; }
self.requestFailed = YES;
for (NSUInteger i = self.requestsComplete; i <= self.requests.count; i++) {
if (self.progressHandler != NULL) {
self.progressHandler(self.requests[i], nil, [NSError sdl_lifecycle_multipleRequestsCancelled], self.percentComplete);
}
if (self.responseHandler != NULL) {
self.responseHandler(request, nil, [NSError sdl_lifecycle_multipleRequestsCancelled]);
}
}
[self finishOperation];
}
#pragma mark - Getters
- (float)percentComplete {
return (float)self.requestsComplete / (float)self.requests.count;
}
#pragma mark - Property Overrides
- (void)finishOperation {
if (self.completionHandler != NULL) {
self.completionHandler(!self.requestFailed);
}
[super finishOperation];
}
- (nullable NSString *)name {
return [NSString stringWithFormat:@"%@ - %@", self.class, self.operationId];
}
- (NSOperationQueuePriority)queuePriority {
return NSOperationQueuePriorityNormal;
}
- (NSString *)description {
return [NSString stringWithFormat:@"%@, request count=%lu, requests started=%lu, finished=%lu, failed=%@", self.name, (unsigned long)self.requests.count, (unsigned long)self.requestsStarted, (unsigned long)self.requestsComplete, (self.requestFailed ? @"YES": @"NO")];
}
- (NSString *)debugDescription {
return [NSString stringWithFormat:@"%@, request count=%lu, requests started=%lu, finished=%lu, failed=%@, requests=%@", self.name, (unsigned long)self.requests.count, (unsigned long)self.requestsStarted, (unsigned long)self.requestsComplete, (self.requestFailed ? @"YES": @"NO"), self.requests];
}
@end
NS_ASSUME_NONNULL_END
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