#import "RNNControllerFactory.h"
#import "RNNLayoutNode.h"
#import "RNNRootViewController.h"
#import "RNNSideMenuController.h"
#import "RNNSideMenuChildVC.h"
#import "RNNNavigationOptions.h"
#import "RNNNavigationController.h"
#import "RNNTabBarController.h"

@implementation RNNControllerFactory {
	id<RNNRootViewCreator> _creator;
	RNNStore *_store;
	RNNEventEmitter *_eventEmitter;
}

# pragma mark public


- (instancetype)initWithRootViewCreator:(id <RNNRootViewCreator>)creator
								  store:(RNNStore *)store
						   eventEmitter:(RNNEventEmitter*)eventEmitter {
	
	self = [super init];
	_creator = creator;
	_store = store;
	_eventEmitter = eventEmitter;
	
	return self;
}

- (UIViewController<RNNRootViewProtocol> *)createLayoutAndSaveToStore:(NSDictionary*)layout {
	return [self fromTree:layout];
}

# pragma mark private

- (UIViewController<RNNRootViewProtocol> *)fromTree:(NSDictionary*)json {
	RNNLayoutNode* node = [RNNLayoutNode create:json];
	
	UIViewController<RNNRootViewProtocol> *result;
	
	if ( node.isContainer) {
		result = [self createContainer:node];
	}
	
	else if (node.isContainerStack)	{
		result = [self createContainerStack:node];
	}
	
	else if (node.isTabs) {
		result = [self createTabs:node];
	}
	
	else if (node.isSideMenuRoot) {
		result = [self createSideMenu:node];
	}
	
	else if (node.isSideMenuCenter) {
		result = [self createSideMenuChild:node type:RNNSideMenuChildTypeCenter];
	}
	
	else if (node.isSideMenuLeft) {
		result = [self createSideMenuChild:node type:RNNSideMenuChildTypeLeft];
	}
	else if (node.isSideMenuRight) {
		result = [self createSideMenuChild:node type:RNNSideMenuChildTypeRight];
	}
	
	if (!result) {
		@throw [NSException exceptionWithName:@"UnknownControllerType" reason:[@"Unknown controller type " stringByAppendingString:node.type] userInfo:nil];
	}

	[_store setContainer:result containerId:node.nodeId];
	
	return result;
}

- (UIViewController<RNNRootViewProtocol> *)createContainer:(RNNLayoutNode*)node {
	NSString* name = node.data[@"name"];
	NSDictionary* customTransition = node.data[@"customTransition"];
	RNNAnimator* animator = [[RNNAnimator alloc] initWithAnimationsDictionary:customTransition];
	RNNNavigationOptions* options = [[RNNNavigationOptions alloc] initWithDict:node.data[@"navigationOptions"]];
	NSString* containerId = node.nodeId;
	return [[RNNRootViewController alloc] initWithName:name withOptions:options withContainerId:containerId rootViewCreator:_creator eventEmitter:_eventEmitter animator:animator];
}

- (UIViewController<RNNRootViewProtocol> *)createContainerStack:(RNNLayoutNode*)node {
	RNNNavigationController* vc = [[RNNNavigationController alloc] init];
	
	NSMutableArray* controllers = [NSMutableArray new];
	for (NSDictionary* child in node.children) {
		[controllers addObject:[self fromTree:child]];
	}
	[vc setViewControllers:controllers];
	
	return vc;
}

-(UIViewController<RNNRootViewProtocol> *)createTabs:(RNNLayoutNode*)node {
	RNNTabBarController* vc = [[RNNTabBarController alloc] init];
	
	NSMutableArray* controllers = [NSMutableArray new];
	for (NSDictionary *child in node.children) {
		UIViewController* childVc = (UIViewController*)[self fromTree:child];
		RNNRootViewController* rootView = (RNNRootViewController *)childVc.childViewControllers.firstObject;
		[rootView applyTabBarItem];
		
		[controllers addObject:childVc];
	}
	[vc setViewControllers:controllers];
	
	return vc;
}

- (UIViewController<RNNRootViewProtocol> *)createSideMenu:(RNNLayoutNode*)node {
	NSMutableArray* childrenVCs = [NSMutableArray new];
	
	
	for (NSDictionary *child in node.children) {
		UIViewController *vc = [self fromTree:child];
		[childrenVCs addObject:vc];
	}
	RNNSideMenuController *sideMenu = [[RNNSideMenuController alloc] initWithControllers:childrenVCs];
	return sideMenu;
}


- (UIViewController<RNNRootViewProtocol> *)createSideMenuChild:(RNNLayoutNode*)node type:(RNNSideMenuChildType)type {
	UIViewController* child = (UIViewController*)[self fromTree:node.children[0]];
	RNNSideMenuChildVC *sideMenuChild = [[RNNSideMenuChildVC alloc] initWithChild: child type:type];
	
	return sideMenuChild;
}



@end