text: //
  //  TZImageManager.h
  //  TZImagePickerController
  //
  //  Created by 谭真 on 16/1/4.
  //  Copyright © 2016年 谭真. All rights reserved.
  //  图片资源获取管理类
  
  #import <Foundation/Foundation.h>
  #import <UIKit/UIKit.h>
  #import <AVFoundation/AVFoundation.h>
  #import <Photos/Photos.h>
  #import "TZAssetModel.h"
  
  @class TZAlbumModel,TZAssetModel;
  @protocol TZImagePickerControllerDelegate;
  @interface TZImageManager : NSObject
  
  @property (nonatomic, strong) PHCachingImageManager *cachingImageManager;
  
  + (instancetype)manager NS_SWIFT_NAME(default());
  + (void)deallocManager;
  
  @property (weak, nonatomic) id<TZImagePickerControllerDelegate> pickerDelegate;
  
  @property (nonatomic, assign) BOOL shouldFixOrientation;
  
  /// Default is 600px / 默认600像素宽
  @property (nonatomic, assign) CGFloat photoPreviewMaxWidth;
  /// The pixel width of output image, Default is 828px / 导出图片的宽度，默认828像素宽
  @property (nonatomic, assign) CGFloat photoWidth;
  
  /// Default is 4, Use in photos collectionView in TZPhotoPickerController
  /// 默认4列, TZPhotoPickerController中的照片collectionView
  @property (nonatomic, assign) NSInteger columnNumber;
  
  /// Sort photos ascending by modificationDate，Default is YES
  /// 对照片排序，按修改时间升序，默认是YES。如果设置为NO,最新的照片会显示在最前面，内部的拍照按钮会排在第一个
  @property (nonatomic, assign) BOOL sortAscendingByModificationDate;
  
  /// Minimum selectable photo width, Default is 0
  /// 最小可选中的图片宽度，默认是0，小于这个宽度的图片不可选中
  @property (nonatomic, assign) NSInteger minPhotoWidthSelectable;
  @property (nonatomic, assign) NSInteger minPhotoHeightSelectable;
  @property (nonatomic, assign) BOOL hideWhenCanNotSelect;
  
  /// Return YES if Authorized 返回YES如果得到了授权
  - (BOOL)authorizationStatusAuthorized;
  - (void)requestAuthorizationWithCompletion:(void (^)(void))completion;
  
  /// Get Album 获得相册/相册数组
  - (void)getCameraRollAlbum:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage needFetchAssets:(BOOL)needFetchAssets completion:(void (^)(TZAlbumModel *model))completion;
  - (void)getAllAlbums:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage needFetchAssets:(BOOL)needFetchAssets completion:(void (^)(NSArray<TZAlbumModel *> *models))completion;
  
  /// Get Assets 获得Asset数组
  - (void)getAssetsFromFetchResult:(PHFetchResult *)result completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
  - (void)getAssetsFromFetchResult:(PHFetchResult *)result allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(NSArray<TZAssetModel *> *models))completion;
  - (void)getAssetFromFetchResult:(PHFetchResult *)result atIndex:(NSInteger)index allowPickingVideo:(BOOL)allowPickingVideo allowPickingImage:(BOOL)allowPickingImage completion:(void (^)(TZAssetModel *model))completion;
  
  /// Get photo 获得照片
  - (void)getPostImageWithAlbumModel:(TZAlbumModel *)model completion:(void (^)(UIImage *postImage))completion;
  
  - (int32_t)getPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
  - (int32_t)getPhotoWithAsset:(PHAsset *)asset photoWidth:(CGFloat)photoWidth completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
  - (int32_t)getPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler networkAccessAllowed:(BOOL)networkAccessAllowed;
  - (int32_t)getPhotoWithAsset:(PHAsset *)asset photoWidth:(CGFloat)photoWidth completion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler networkAccessAllowed:(BOOL)networkAccessAllowed;
  - (int32_t)requestImageDataForAsset:(PHAsset *)asset completion:(void (^)(NSData *imageData, NSString *dataUTI, UIImageOrientation orientation, NSDictionary *info))completion progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler;
  
  /// Get full Image 获取原图
  /// 如下两个方法completion一般会调多次，一般会先返回缩略图，再返回原图(详见方法内部使用的系统API的说明)，如果info[PHImageResultIsDegradedKey] 为 YES，则表明当前返回的是缩略图，否则是原图。
  - (void)getOriginalPhotoWithAsset:(PHAsset *)asset completion:(void (^)(UIImage *photo,NSDictionary *info))completion;
  - (void)getOriginalPhotoWithAsset:(PHAsset *)asset newCompletion:(void (^)(UIImage *photo,NSDictionary *info,BOOL isDegraded))completion;
  // 该方法中，completion只会走一次
  - (void)getOriginalPhotoDataWithAsset:(PHAsset *)asset completion:(void (^)(NSData *data,NSDictionary *info,BOOL isDegraded))completion;
  - (void)getOriginalPhotoDataWithAsset:(PHAsset *)asset progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler completion:(void (^)(NSData *data,NSDictionary *info,BOOL isDegraded))completion;
  
  /// Save photo 保存照片
  - (void)savePhotoWithImage:(UIImage *)image completion:(void (^)(PHAsset *asset, NSError *error))completion;
  - (void)savePhotoWithImage:(UIImage *)image location:(CLLocation *)location completion:(void (^)(PHAsset *asset, NSError *error))completion;
  
  /// Save video 保存视频
  - (void)saveVideoWithUrl:(NSURL *)url completion:(void (^)(PHAsset *asset, NSError *error))completion;
  - (void)saveVideoWithUrl:(NSURL *)url location:(CLLocation *)location completion:(void (^)(PHAsset *asset, NSError *error))completion;
  
  /// Get video 获得视频
  - (void)getVideoWithAsset:(PHAsset *)asset completion:(void (^)(AVPlayerItem * playerItem, NSDictionary * info))completion;
  - (void)getVideoWithAsset:(PHAsset *)asset progressHandler:(void (^)(double progress, NSError *error, BOOL *stop, NSDictionary *info))progressHandler completion:(void (^)(AVPlayerItem *, NSDictionary *))completion;
  
  /// Export video 导出视频 presetName: 预设名字，默认值是AVAssetExportPreset640x480
  - (void)getVideoOutputPathWithAsset:(PHAsset *)asset success:(void (^)(NSString *outputPath))success failure:(void (^)(NSString *errorMessage, NSError *error))failure;
  - (void)getVideoOutputPathWithAsset:(PHAsset *)asset presetName:(NSString *)presetName success:(void (^)(NSString *outputPath))success failure:(void (^)(NSString *errorMessage, NSError *error))failure;
  /// Deprecated, Use -getVideoOutputPathWithAsset:failure:success:
  - (void)getVideoOutputPathWithAsset:(PHAsset *)asset completion:(void (^)(NSString *outputPath))completion __attribute__((deprecated("Use -getVideoOutputPathWithAsset:failure:success:")));
  
  /// Get photo bytes 获得一组照片的大小
  - (void)getPhotosBytesWithArray:(NSArray *)photos completion:(void (^)(NSString *totalBytes))completion;
  /**
   根据图片数组获取每个图片大小
   maxByte 如果maxByte <=0 默认20MB = 1024*1024*20
   @param photos TZAssetModel 对象数组
   @param maxByte 每张图片最大字节 例如20MB 1024*1024*20
   @param completion 成功 返回数组总共多少兆
   @param faile 失败提示
   */
  - (void)dy_getPhotosBytesWithArray:(NSArray *)photos maxByte:(NSInteger)maxByte completion:(void (^)(NSString *totalBytes))completion faile:(void (^)(void))faile ;
  - (BOOL)isCameraRollAlbum:(PHAssetCollection *)metadata;
  
  /// 检查照片大小是否满足最小要求
  - (BOOL)isPhotoSelectableWithAsset:(PHAsset *)asset;
  
  /// 修正图片转向
  - (UIImage *)fixOrientation:(UIImage *)aImage;
  
  /// 获取asset的资源类型
  - (TZAssetModelMediaType)getAssetType:(PHAsset *)asset;
  /// 缩放图片至新尺寸
  - (UIImage *)scaleImage:(UIImage *)image toSize:(CGSize)size;
  
  /// 判断asset是否是视频
  - (BOOL)isVideo:(PHAsset *)asset;
  
  /// for TZImagePreviewController
  - (NSString *)getNewTimeFromDurationSecond:(NSInteger)duration;
  
  - (TZAssetModel *)createModelWithAsset:(PHAsset *)asset;
  
  @end
  
  //@interface TZSortDescriptor : NSSortDescriptor
  //
  //@end
  