/**
* Copyright (c) 2015-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/

#import "RCTPropsAnimatedNode.h"

#import <React/RCTLog.h>
#import <React/RCTUIManager.h>

#import "RCTAnimationUtils.h"
#import "RCTStyleAnimatedNode.h"
#import "RCTValueAnimatedNode.h"

@implementation RCTPropsAnimatedNode
{
NSNumber *_connectedViewTag;
NSString *_connectedViewName;
__weak RCTUIManager *_uiManager;
NSMutableDictionary<NSString *, NSObject *> *_propsDictionary;
}

- (instancetype)initWithTag:(NSNumber *)tag
config:(NSDictionary<NSString *, id> *)config;
{
if (self = [super initWithTag:tag config:config]) {
_propsDictionary = [NSMutableDictionary new];
}
return self;
}

- (void)connectToView:(NSNumber *)viewTag
viewName:(NSString *)viewName
uiManager:(RCTUIManager *)uiManager
{
_connectedViewTag = viewTag;
_connectedViewName = viewName;
_uiManager = uiManager;
}

- (void)disconnectFromView:(NSNumber *)viewTag
{
_connectedViewTag = nil;
_connectedViewName = nil;
_uiManager = nil;
}

- (void)restoreDefaultValues
{
// Restore the default value for all props that were modified by this node.
for (NSString *key in _propsDictionary.allKeys) {
_propsDictionary[key] = [NSNull null];
}

if (_propsDictionary.count) {
[_uiManager synchronouslyUpdateViewOnUIThread:_connectedViewTag
viewName:_connectedViewName
props:_propsDictionary];
}
}

- (NSString *)propertyNameForParentTag:(NSNumber *)parentTag
{
__block NSString *propertyName;
[self.config[@"props"] enumerateKeysAndObjectsUsingBlock:^(NSString *_Nonnull property, NSNumber *_Nonnull tag, BOOL *_Nonnull stop) {
if ([tag isEqualToNumber:parentTag]) {
propertyName = property;
*stop = YES;
}
}];
return propertyName;
}

- (void)performUpdate
{
[super performUpdate];

// Since we are updating nodes after detaching them from views there is a time where it's
// possible that the view was disconnected and still receive an update, this is normal and we can
// simply skip that update.
if (!_connectedViewTag) {
return;
}

for (NSNumber *parentTag in self.parentNodes.keyEnumerator) {
RCTAnimatedNode *parentNode = [self.parentNodes objectForKey:parentTag];
if ([parentNode isKindOfClass:[RCTStyleAnimatedNode class]]) {
[self->_propsDictionary addEntriesFromDictionary:[(RCTStyleAnimatedNode *)parentNode propsDictionary]];

} else if ([parentNode isKindOfClass:[RCTValueAnimatedNode class]]) {
NSString *property = [self propertyNameForParentTag:parentTag];
CGFloat value = [(RCTValueAnimatedNode *)parentNode value];
self->_propsDictionary[property] = @(value);
}
}

if (_propsDictionary.count) {
[_uiManager synchronouslyUpdateViewOnUIThread:_connectedViewTag
viewName:_connectedViewName
props:_propsDictionary];
}
}

@end