/*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*/

#import "RCTSurfaceRootShadowView.h"

#import "RCTI18nUtil.h"
#import "RCTShadowView+Layout.h"
#import "RCTUIManagerUtils.h"

@implementation RCTSurfaceRootShadowView {
CGSize _intrinsicSize;
BOOL _isRendered;
BOOL _isLaidOut;
}

- (instancetype)init
{
if (self = [super init]) {
self.viewName = @"RCTSurfaceRootView";
_baseDirection = [[RCTI18nUtil sharedInstance] isRTL] ? YGDirectionRTL : YGDirectionLTR;
_minimumSize = CGSizeZero;
_maximumSize = CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX);

self.alignSelf = YGAlignStretch;
self.flex = 1;
}

return self;
}

- (void)insertReactSubview:(RCTShadowView *)subview atIndex:(NSInteger)atIndex
{
[super insertReactSubview:subview atIndex:atIndex];
if (!_isRendered) {
[_delegate rootShadowViewDidStartRendering:self];
_isRendered = YES;
}
}

- (void)layoutWithAffectedShadowViews:(NSHashTable<RCTShadowView *> *)affectedShadowViews
{
NSHashTable<NSString *> *other = [NSHashTable new];

RCTLayoutContext layoutContext = {};
layoutContext.absolutePosition = CGPointZero;
layoutContext.affectedShadowViews = affectedShadowViews;
layoutContext.other = other;

[self layoutWithMinimumSize:_minimumSize
maximumSize:_maximumSize
layoutDirection:RCTUIKitLayoutDirectionFromYogaLayoutDirection(_baseDirection)
layoutContext:layoutContext];

self.intrinsicSize = self.layoutMetrics.frame.size;

if (_isRendered && !_isLaidOut) {
[_delegate rootShadowViewDidStartLayingOut:self];
_isLaidOut = YES;
}
}

- (void)setMinimumSize:(CGSize)minimumSize maximumSize:(CGSize)maximumSize
{
if (CGSizeEqualToSize(minimumSize, _minimumSize) && CGSizeEqualToSize(maximumSize, _maximumSize)) {
return;
}

_maximumSize = maximumSize;
_minimumSize = minimumSize;
}

- (void)setIntrinsicSize:(CGSize)intrinsicSize
{
if (CGSizeEqualToSize(_intrinsicSize, intrinsicSize)) {
return;
}

_intrinsicSize = intrinsicSize;

[_delegate rootShadowView:self didChangeIntrinsicSize:intrinsicSize];
}

- (CGSize)intrinsicSize
{
return _intrinsicSize;
}

@end