//

// ASVideoPlayerNode.h

// AsyncDisplayKit

//

// Created by Erekle on 5/6/16.

// Copyright © 2016 Facebook. All rights reserved.

//

#if TARGET_OS_IOS

#import <AsyncDisplayKit/AsyncDisplayKit.h>

//#import <AsyncDisplayKit/ASThread.h>

//#import <AsyncDisplayKit/ASVideoNode.h>

//#import <AsyncDisplayKit/ASDisplayNode+Subclasses.h>

@class AVAsset;

@protocol ASVideoPlayerNodeDelegate;

typedef enum {

ASVideoPlayerNodeControlTypePlaybackButton,

ASVideoPlayerNodeControlTypeElapsedText,

ASVideoPlayerNodeControlTypeDurationText,

ASVideoPlayerNodeControlTypeScrubber,

ASVideoPlayerNodeControlTypeFlexGrowSpacer,

} ASVideoPlayerNodeControlType;

NS_ASSUME_NONNULL_BEGIN

@interface ASVideoPlayerNode : ASDisplayNode

@property (nullable, atomic, weak) id<ASVideoPlayerNodeDelegate> delegate;

@property (nonatomic, assign, readonly) CMTime duration;

@property (nonatomic, assign) BOOL controlsDisabled;

@property (nonatomic, assign, readonly) BOOL loadAssetWhenNodeBecomesVisible;

#pragma mark - ASVideoNode property proxy

/**

* When shouldAutoplay is set to true, a video node will play when it has both loaded and entered the "visible" interfaceState.

* If it leaves the visible interfaceState it will pause but will resume once it has returned.

*/

@property (nonatomic, assign, readwrite) BOOL shouldAutoPlay;

@property (nonatomic, assign, readwrite) BOOL shouldAutoRepeat;

@property (nonatomic, assign, readwrite) BOOL muted;

@property (nonatomic, assign, readonly) ASVideoNodePlayerState playerState;

@property (nonatomic, assign, readwrite) BOOL shouldAggressivelyRecoverFromStall;

//! Defaults to 100

@property (nonatomic, assign) int32_t periodicTimeObserverTimescale;

//! Defaults to AVLayerVideoGravityResizeAspect

@property (atomic) NSString *gravity;

- (instancetype)initWithUrl:(NSURL*)url;

- (instancetype)initWithAsset:(AVAsset*)asset;

- (instancetype)initWithUrl:(NSURL *)url loadAssetWhenNodeBecomesVisible:(BOOL)loadAssetWhenNodeBecomesVisible;

- (instancetype)initWithAsset:(AVAsset *)asset loadAssetWhenNodeBecomesVisible:(BOOL)loadAssetWhenNodeBecomesVisible;

#pragma mark - Public API

- (void)seekToTime:(CGFloat)percentComplete;

- (void)play;

- (void)pause;

- (BOOL)isPlaying;

@end

#pragma mark - ASVideoPlayerNodeDelegate -

@protocol ASVideoPlayerNodeDelegate <NSObject>

@optional

/**

* @abstract Delegate method invoked before creating controlbar controls

* @param videoPlayer

*/

- (NSArray *)videoPlayerNodeNeededDefaultControls:(ASVideoPlayerNode*)videoPlayer;

/**

* @abstract Delegate method invoked before creating default controls, asks delegate for custom controls dictionary.

* This dictionary must constain only ASDisplayNode subclass objects.

* @param videoPlayer

* @discussion - This method is invoked only when developer implements videoPlayerNodeLayoutSpec:forControls:forMaximumSize:

* and gives ability to add custom constrols to ASVideoPlayerNode, for example mute button.

*/

- (NSDictionary *)videoPlayerNodeCustomControls:(ASVideoPlayerNode*)videoPlayer;

/**

* @abstract Delegate method invoked in layoutSpecThatFits:

* @param videoPlayer

* @param controls - Dictionary of controls which are used in videoPlayer; Dictionary keys are ASVideoPlayerNodeControlType

* @param maxSize - Maximum size for ASVideoPlayerNode

* @discussion - Developer can layout whole ASVideoPlayerNode as he wants. ASVideoNode is locked and it can't be changed

*/

- (ASLayoutSpec *)videoPlayerNodeLayoutSpec:(ASVideoPlayerNode *)videoPlayer

forControls:(NSDictionary *)controls

forMaximumSize:(CGSize)maxSize;

#pragma mark Text delegate methods

/**

* @abstract Delegate method invoked before creating ASVideoPlayerNodeControlTypeElapsedText and ASVideoPlayerNodeControlTypeDurationText

* @param videoPlayer

* @param timeLabelType

*/

- (NSDictionary *)videoPlayerNodeTimeLabelAttributes:(ASVideoPlayerNode *)videoPlayerNode timeLabelType:(ASVideoPlayerNodeControlType)timeLabelType;

- (NSString *)videoPlayerNode:(ASVideoPlayerNode *)videoPlayerNode

timeStringForTimeLabelType:(ASVideoPlayerNodeControlType)timeLabelType

forTime:(CMTime)time;

#pragma mark Scrubber delegate methods

- (UIColor *)videoPlayerNodeScrubberMaximumTrackTint:(ASVideoPlayerNode *)videoPlayer;

- (UIColor *)videoPlayerNodeScrubberMinimumTrackTint:(ASVideoPlayerNode *)videoPlayer;

- (UIColor *)videoPlayerNodeScrubberThumbTint:(ASVideoPlayerNode *)videoPlayer;

- (UIImage *)videoPlayerNodeScrubberThumbImage:(ASVideoPlayerNode *)videoPlayer;

#pragma mark - Spinner delegate methods

- (UIColor *)videoPlayerNodeSpinnerTint:(ASVideoPlayerNode *)videoPlayer;

#pragma mark - Playback button delegate methods

- (UIColor *)videoPlayerNodePlaybackButtonTint:(ASVideoPlayerNode *)videoPlayer;

#pragma mark ASVideoNodeDelegate proxy methods

/**

* @abstract Delegate method invoked when ASVideoPlayerNode is taped.

* @param videoPlayerNode The ASVideoPlayerNode that was tapped.

*/

- (void)didTapVideoPlayerNode:(ASVideoPlayerNode *)videoPlayer;

/**

* @abstract Delegate method invoked when ASVideoNode playback time is updated.

* @param videoPlayerNode The video player node

* @param second current playback time.

*/

- (void)videoPlayerNode:(ASVideoPlayerNode *)videoPlayer didPlayToTime:(CMTime)time;

/**

* @abstract Delegate method invoked when ASVideoNode changes state.

* @param videoPlayerNode The ASVideoPlayerNode whose ASVideoNode is changing state.

* @param state ASVideoNode state before this change.

* @param toSate ASVideoNode new state.

* @discussion This method is called after each state change

*/

- (void)videoPlayerNode:(ASVideoPlayerNode *)videoPlayer willChangeVideoNodeState:(ASVideoNodePlayerState)state toVideoNodeState:(ASVideoNodePlayerState)toState;

/**

* @abstract Delegate method is invoked when ASVideoNode decides to change state.

* @param videoPlayerNode The ASVideoPlayerNode whose ASVideoNode is changing state.

* @param state ASVideoNode that is going to be set.

* @discussion Delegate method invoked when player changes it's state to

* ASVideoNodePlayerStatePlaying or ASVideoNodePlayerStatePaused

* and asks delegate if state change is valid

*/

- (BOOL)videoPlayerNode:(ASVideoPlayerNode*)videoPlayer shouldChangeVideoNodeStateTo:(ASVideoNodePlayerState)state;

/**

* @abstract Delegate method invoked when the ASVideoNode has played to its end time.

* @param videoPlayerNode The video node has played to its end time.

*/

- (void)videoPlayerNodeDidPlayToEnd:(ASVideoPlayerNode *)videoPlayer;

@end

NS_ASSUME_NONNULL_END

#endif