JSJP_Student/jiaPei/Modules/BaseModule/BaseClass/ViewController/RQNavigationControllerStack.m

//
//  RQNavigationControllerStack.m
//  RQCommon
//
//  Created by 张嵘 on 2018/11/14.
//  Copyright © 2018 张嵘. All rights reserved.
//

#import "RQNavigationControllerStack.h"

@interface RQNavigationControllerStack ()
@property (nonatomic, strong) id<RQViewModelServices> services;
@property (nonatomic, strong) NSMutableArray *navigationControllers;
@end


@implementation RQNavigationControllerStack
- (instancetype)initWithServices:(id<RQViewModelServices>)services {
	self = [super init];
	if (self) {
		self.services = services;
		self.navigationControllers = [[NSMutableArray alloc] init];
		[self registerNavigationHooks];
	}
	return self;
}

- (void)pushNavigationController:(UINavigationController *)navigationController {
	
	if ([self.navigationControllers containsObject:navigationController]) return;
	
	[self.navigationControllers addObject:navigationController];
}

- (UINavigationController *)popNavigationController {
	UINavigationController *navigationController = self.navigationControllers.lastObject;
	[self.navigationControllers removeLastObject];
	return navigationController;
}

- (UINavigationController *)topNavigationController {
	return self.navigationControllers.lastObject;
}

- (void)registerNavigationHooks {
	@weakify(self)
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(pushViewModel:animated:)]
	 subscribeNext:^(RACTuple *tuple) {
		 @strongify(self)
		 RQBaseViewController *topViewController = (RQBaseViewController *)[self.navigationControllers.lastObject topViewController];
		 if (topViewController.tabBarController) {
			 topViewController.snapshot = [topViewController.tabBarController.view snapshotViewAfterScreenUpdates:NO];
		 } else {
			 topViewController.snapshot = [[self.navigationControllers.lastObject view] snapshotViewAfterScreenUpdates:NO];
		 }
		 UIViewController *viewController = (UIViewController *)[RQRouter.sharedInstance viewControllerForViewModel:tuple.first];
		 [self.navigationControllers.lastObject pushViewController:viewController animated:[tuple.second boolValue]];
	 }];
	
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(popViewModelAnimated:)]
	 subscribeNext:^(RACTuple *tuple) {
		 @strongify(self)
		 [self.navigationControllers.lastObject popViewControllerAnimated:[tuple.first boolValue]];
	 }];
	
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(popToRootViewModelAnimated:)]
	 subscribeNext:^(RACTuple *tuple) {
		 @strongify(self)
		 [self.navigationControllers.lastObject popToRootViewControllerAnimated:[tuple.first boolValue]];
	 }];
	
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(presentViewModel:animated:completion:)]
	 subscribeNext:^(RACTuple *tuple) {
        @strongify(self)
        UIViewController *viewController = (UIViewController *)[RQRouter.sharedInstance viewControllerForViewModel:tuple.first];
        
        UINavigationController *presentingViewController = self.navigationControllers.lastObject;
        if (![viewController isKindOfClass:UINavigationController.class]) {
            viewController = [[RQBaseNavigationController alloc] initWithRootViewController:viewController];
        }
        [self pushNavigationController:(UINavigationController *)viewController];
        
        viewController.modalPresentationStyle = UIModalPresentationFullScreen;
        
        [presentingViewController presentViewController:viewController animated:[tuple.second boolValue] completion:tuple.third];
	 }];
	
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(dismissViewModelAnimated:completion:)]
	 subscribeNext:^(RACTuple *tuple) {
		 @strongify(self)
		 [self popNavigationController];
		 [self.navigationControllers.lastObject dismissViewControllerAnimated:[tuple.first boolValue] completion:tuple.second];
	 }];
	
	[[(NSObject *)self.services
	  rac_signalForSelector:@selector(resetRootViewModel:)]
	 subscribeNext:^(RACTuple *tuple) {
		 @strongify(self)
		 [self.navigationControllers removeAllObjects];
		 /// VM映射VC
		 UIViewController *viewController = (UIViewController *)[RQRouter.sharedInstance viewControllerForViewModel:tuple.first];
		 if (![viewController isKindOfClass:[UINavigationController class]] &&
			 ![viewController isKindOfClass:[RQTabBarController class]]) {
			 viewController = [[RQBaseNavigationController alloc] initWithRootViewController:viewController];
			 [self pushNavigationController:(UINavigationController *)viewController];
		 }
		 RQSharedAppDelegate.window.rootViewController = viewController;
	 }];
}

@end