Kulexiu/KulexiuForStudent/KulexiuForStudent/Module/Chat/Controller/KSChatConversationViewController.m

//
//  KSChatConversationViewController.m
//  KulexiuForTeacher
//
//  Created by Kyle on 2022/3/23.
//

#import "KSChatConversationViewController.h"
#import "GroupSettingViewController.h"
#import "KSTabBarViewController.h"
#import "UIButton+EnlargeEdge.h"
#import "CustomNavViewController.h"
#import <AVFoundation/AVFoundation.h>
#import "KSBaseWKWebViewController.h"
#import "WMPlayer.h"
#import "KSRCloudMediaManager.h"
#import "KSSelectConversationViewController.h"
#import "GroupMemberModel.h"
#define SHARE_MUSIC_TAG (2001)

#import "KSChatLiveMessage.h"
#import "KSChatLiveShareCell.h"
#import "KSChatMusicShareCell.h"
#import "KSChatMusicMessage.h"

#import "KSEnterLiveroomManager.h"
#import "KSAccompanyWebViewController.h"

#import "KSPublicAlertView.h"

@interface RCNaviDataInfo : NSObject

@property (nonatomic, assign) NSTimeInterval uploadVideoDurationLimit;

@end

@interface RCNaviDataManager : NSObject

@property (nonatomic, strong) RCNaviDataInfo *naviData;

+ (instancetype)sharedInstance;

@end

@interface RCSightMessage ()

@property (nonatomic, readonly) AVAsset *asset;

@property (nonatomic, assign) long long size;

+ (instancetype)messageWithAsset:(AVAsset *)asset thumbnail:(UIImage *)image duration:(NSUInteger)duration;
@end


@interface KSChatConversationViewController ()<RCMessageCellDelegate,UIAlertViewDelegate,UIActionSheetDelegate,WMPlayerDelegate>
{
    WMPlayer *_wmPlayer;
    CGRect _playerFrame;
}

@property (nonatomic, strong) UIView *bgView;
@property (nonatomic, assign) BOOL isRatation;

@property (nonatomic, assign) BOOL isFirstLoad;

@property (nonatomic, strong) KSPublicAlertView *alertView;

@end

@implementation KSChatConversationViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    if (self.conversationType == ConversationType_PRIVATE) {
        self.displayUserNameInCell = NO;
    }
    else if (self.conversationType == ConversationType_SYSTEM) {
        self.displayUserNameInCell = NO;
        self.chatSessionInputBarControl.hidden = YES;
        self.conversationMessageCollectionView.frame = CGRectMake(0, kNaviBarHeight, kScreenWidth, kScreenHeight - iPhoneXSafeBottomMargin - kNaviBarHeight);
    }
    
    if (self.conversationType != ConversationType_APPSERVICE &&
        self.conversationType != ConversationType_PUBLICSERVICE) {
        //加号区域增加发送文件功能，Kit中已经默认实现了该功能，但是为了SDK向后兼容性，目前SDK默认不开启该入口，可以参考以下代码在加号区域中增加发送文件功能。
        UIImage *imageFile = [UIImage imageNamed:@"actionbar_file_icon"];
        RCPluginBoardView *pluginBoardView = self.chatSessionInputBarControl.pluginBoardView;
        [pluginBoardView insertItem:imageFile
                   highlightedImage:imageFile
                              title:@"文件"
                            atIndex:3
                                tag:PLUGIN_BOARD_ITEM_FILE_TAG];
    }
    
    // 注册自定义消息
    [self registerClass:[KSChatLiveShareCell class] forMessageClass:[KSChatLiveMessage class]];
    [self registerClass:[KSChatMusicShareCell class] forMessageClass:[KSChatMusicMessage class]];
    
    [self leftRightButton];
    [self refreshUserInfoOrGroupInfo];
    self.isFirstLoad = YES;
//    [self.chatSessionInputBarControl.pluginBoardView removeItemAtIndex:2];
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    if (self.isFirstLoad == NO) {
        [self refreshUserInfoOrGroupInfo];
    }
    [self refreshTitle];
}

- (void)viewDidAppear:(BOOL)animated {
    [super viewDidAppear:animated];
    self.isFirstLoad = NO;
    [IQKeyboardManager sharedManager].enableAutoToolbar = NO;
}

- (void)viewWillDisappear:(BOOL)animated {
    [super viewWillDisappear:animated];
    int unreadMsgCount = [[RCIMClient sharedRCIMClient] getUnreadCount:@[
        @(ConversationType_PRIVATE), @(ConversationType_APPSERVICE), @(ConversationType_GROUP),@(ConversationType_SYSTEM)
    ]];
    if (unreadMsgCount >= 1) {
        [(KSTabBarViewController *)self.tabBarController noteNewsWithIndex:2 count:unreadMsgCount];
    } else {
        [(KSTabBarViewController *)self.tabBarController clearNewsWithIndex:2];
    }

    [IQKeyboardManager sharedManager].enableAutoToolbar = YES;
}

- (void)notifyUpdateUnreadMessageCount {
    if (self.allowsMessageCellSelection) {
        [super notifyUpdateUnreadMessageCount];
        return;
    }
    [self leftRightButton];
}

- (void)leftRightButton {
    dispatch_main_async_safe(^{
        UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"back_black"] style:UIBarButtonItemStylePlain target:self action:@selector(backAction)];
        leftButton.imageInsets = UIEdgeInsetsMake(0, -5, 0, 0);
        leftButton.tintColor = [UIColor blackColor];
        self.navigationItem.leftBarButtonItem = leftButton;
        if (self.conversationType == ConversationType_GROUP) {
            [self rightButtonWithImage:@"group_setting"];
        }
        else if (self.conversationType == ConversationType_SYSTEM || self.conversationType == ConversationType_PRIVATE) {
            self.navigationItem.rightBarButtonItem = nil;
        }
    });
}

- (void)rightButtonWithImage:(NSString *)imageName {
    UIButton *rightBt = [UIButton buttonWithType:UIButtonTypeCustom];
    rightBt.frame =CGRectMake(0, 0, 80, 40);
    rightBt.contentEdgeInsets = UIEdgeInsetsMake(0, 0, 0, -40);
    [rightBt setEnlargeEdgeWithTop:10 right:10 bottom:10 left:10];
    rightBt.titleLabel.font = [UIFont systemFontOfSize:16];
    [rightBt setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    [rightBt setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];
    [rightBt addTarget:self action:@selector(rightBtnClick) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *rightItem = [[UIBarButtonItem alloc]initWithCustomView:rightBt];
    self.navigationItem.rightBarButtonItem = rightItem;
}

- (void)backAction {
    [self.navigationController popViewControllerAnimated:YES];
}
- (void)rightBtnClick {
    GroupSettingViewController *groupVC = [[GroupSettingViewController alloc] init];
    groupVC.groupId = self.targetId;
    [self.navigationController pushViewController:groupVC animated:YES];
}

- (NSArray<UIMenuItem *> *)getLongTouchMessageCellMenuList:(RCMessageModel *)model {
    if (self.conversationType == ConversationType_SYSTEM) {
        return [NSArray array];
    }
    return [super getLongTouchMessageCellMenuList:model];
}

// 转发
- (void)forwardMessage:(NSInteger)index
             completed:(void (^)(NSArray<RCConversation *> *conversationList))completedBlock {
    KSSelectConversationViewController *forwardSelectedVC = [[KSSelectConversationViewController alloc]
        initSelectConversationViewControllerCompleted:^(NSArray<RCConversation *> *conversationList) {
            completedBlock(conversationList);
        }];
    [self.navigationController pushViewController:forwardSelectedVC animated:NO];
}

#pragma mark override
// 点击消息的处理
- (void)didTapMessageCell:(RCMessageModel *)model {
    if ([model.objectName isEqualToString:@"RC:CHATSHARE:LIVE"]) { // 直播消息
        KSChatLiveMessage *liveShareMsg = (KSChatLiveMessage *)model.content;
        [KSEnterLiveroomManager joinLiveWithRoomId:liveShareMsg.roomUID inController:(CustomNavViewController *)self.navigationController callback:^{
            
        }];
    }
    else if ([model.objectName isEqualToString:@"RC:CHATSHARE:MUSIC"]) { // 曲谱消息
        KSChatMusicMessage *musicShareMsg = (KSChatMusicMessage *)model.content;
        KSAccompanyWebViewController *detailCtrl = [[KSAccompanyWebViewController alloc] init];
        detailCtrl.url = [NSString stringWithFormat:@"%@/accompany?id=%@",hostURL, musicShareMsg.songId];
        detailCtrl.hiddenNavBar = YES;
        detailCtrl.parmDic = @{@"isOpenLight" : @(YES), @"orientation" : @(0),@"isHideTitle" : @(YES)};
        [self.navigationController pushViewController:detailCtrl animated:YES];
    }
    else {
        [super didTapMessageCell:model];
    }
}


- (void)playVideoWithUrl:(NSString *)fileUrl {
    fileUrl = [fileUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];
    _playerFrame = CGRectMake(0, iPhoneXSafeTopMargin, kScreenWidth, kScreenHeight - iPhoneXSafeTopMargin - iPhoneXSafeBottomMargin);
    _wmPlayer = [[WMPlayer alloc] initWithFrame:_playerFrame];
    WMPlayerModel *playModel = [[WMPlayerModel alloc] init];
    playModel.videoURL = [NSURL URLWithString:fileUrl];
    _wmPlayer.playerModel = playModel;
    _wmPlayer.delegate = self;
    _bgView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreenWidth, kScreenHeight)];
    _bgView.backgroundColor = [UIColor blackColor];
    [[UIApplication sharedApplication].keyWindow addSubview:_bgView];
    [[UIApplication sharedApplication].keyWindow addSubview:_wmPlayer];
    [[UIApplication sharedApplication].keyWindow bringSubviewToFront:_wmPlayer];
    
    [_wmPlayer play];
}



- (void)wmplayer:(WMPlayer *)wmplayer clickedCloseButton:(UIButton *)backBtn {
    [wmplayer removePlayer];
    [_bgView removeFromSuperview];
    [self setNeedsStatusBarAppearanceUpdate];
}

- (void)wmplayer:(WMPlayer *)wmplayer clickedFullScreenButton:(UIButton *)fullScreenBtn {
    self.isRatation = !self.isRatation;
    
    if (self.isRatation) {
        [wmplayer removeFromSuperview];
        [UIView animateWithDuration:1.0f animations:^{
            wmplayer.transform = CGAffineTransformMakeRotation(M_PI_2);
            
        } completion:^(BOOL finished) {
            wmplayer.frame = CGRectMake(0, iPhoneXSafeTopMargin, kScreenWidth, kScreenHeight - iPhoneXSafeTopMargin - iPhoneXSafeBottomMargin);
            [[UIApplication sharedApplication].keyWindow addSubview:wmplayer];
            [[UIApplication sharedApplication].keyWindow bringSubviewToFront:wmplayer];
        }];
    }
    else {
        [wmplayer removeFromSuperview];
        
        [UIView animateWithDuration:1.0f animations:^{
            //        复原
            wmplayer.transform = CGAffineTransformIdentity;
            
        } completion:^(BOOL finished) {
            wmplayer.frame = CGRectMake(0, iPhoneXSafeTopMargin, kScreenWidth, kScreenHeight - iPhoneXSafeTopMargin - iPhoneXSafeBottomMargin);
            [[UIApplication sharedApplication].keyWindow addSubview:wmplayer];
            [[UIApplication sharedApplication].keyWindow bringSubviewToFront:wmplayer];
        }];
    }
}


- (void)didTapUrlInMessageCell:(NSString *)url model:(RCMessageModel *)model {
    if ([url containsString:@"dayaedu"]) {
        
        KSBaseWKWebViewController *ctrl = [[KSBaseWKWebViewController alloc] init];
        ctrl.url = url;
        [self.navigationController pushViewController:ctrl animated:YES];
    }
    else if ([url containsString:@"daya"] && [url hasSuffix:@".mp4"]) {
        [self playVideoWithUrl:url];
    }
    else {
        [super didTapUrlInMessageCell:url model:model];
    }
}



- (RCMessageContent *)willSendMessage:(RCMessageContent *)messageContent {
    //可以在这里修改将要发送的消息
    if ([messageContent isMemberOfClass:[RCTextMessage class]]) {
        // RCTextMessage *textMsg = (RCTextMessage *)messageContent;
        // textMsg.extra = @"";
    }
    return messageContent;
}

- (void)resendMessage:(RCMessageContent *)messageContent {
    if ([messageContent isKindOfClass:[RCSightMessage class]]) {
        RCSightMessage *sightMsg = (RCSightMessage *)messageContent;
        [self sendMediaMessage:sightMsg pushContent:nil appUpload:YES];
    }
    else {
        [super resendMessage:messageContent];
    }
}

#pragma mark  --- refresh
- (void)refreshUserInfoOrGroupInfo {
    
    if (self.conversationType == ConversationType_PRIVATE) {
        if (![self.targetId isEqualToString:[RCIM sharedRCIM].currentUserInfo.userId]) {
            [KSNetworkingManager imUserFriendQueryDetail:KS_POST userId:self.targetId success:^(NSDictionary * _Nonnull dic) {
                if ([dic integerValueForKey:@"code"] == 200 && [dic boolValueForKey:@"status"]) {
                    NSDictionary *userDic = [dic dictionaryValueForKey:@"data"];
                    RCUserInfo *user = [[RCUserInfo alloc] initWithUserId:self.targetId name:[userDic stringValueForKey:@"friendNickname"] portrait:[userDic stringValueForKey:@"friendAvatar"]];
                    [[RCIM sharedRCIM] refreshUserInfoCache:user withUserId:self.targetId];
                    [self refreshTitle];
                }
                else {
                    
                }
            } faliure:^(NSError * _Nonnull error) {
                
            }];
        }
    }
    else if (self.conversationType == ConversationType_GROUP) {
        // 获取群成员
        [KSNetworkingManager imGroupMemberAllRequest:KS_POST groupId:self.targetId success:^(NSDictionary * _Nonnull dic) {
            
            if ([dic integerValueForKey:@"code"] == 200 && [dic boolValueForKey:@"status"]) {
                NSArray *sourceArray = [dic arrayValueForKey:@"data"];
                for (NSDictionary *parm in sourceArray) {
                    if ([parm isKindOfClass:[NSNull class]]) {
                        continue;
                    }
                    GroupMemberModel *model = [[GroupMemberModel alloc] initWithDictionary:parm];
                    // 刷新缓存
                    RCUserInfo *user = [[RCUserInfo alloc] initWithUserId:model.userId name:model.nickname portrait:model.avatar];
                    [[RCIM sharedRCIM] refreshGroupUserInfoCache:user withUserId:model.userId withGroupId:self.targetId];
                }
            }
            else {
                
            }
        } faliure:^(NSError * _Nonnull error) {
            
        }];
        
        // 获取群组信息
        [KSNetworkingManager queryGroupDetail:KS_POST groupId:self.targetId success:^(NSDictionary * _Nonnull dic) {
            if ([dic integerValueForKey:@"code"] == 200 && [dic boolValueForKey:@"status"]) {
                NSDictionary *result = [dic dictionaryValueForKey:@"data"];
                RCGroup *groupInfo = [[RCGroup alloc] initWithGroupId:self.targetId groupName:[result stringValueForKey:@"name"] portraitUri:[result stringValueForKey:@"img"]];
                [[RCIM sharedRCIM] refreshGroupInfoCache:groupInfo withGroupId:self.targetId];
                [self refreshTitle];
            }
            else if ([dic integerValueForKey:@"code"] == 204) {
                // 弹窗提示是否删除群组
                MJWeakSelf;
                self.alertView = [KSPublicAlertView shareInstanceWithTitle:@"提示" descMessage:@"当前群组已被解散，是否删除聊天记录？" leftTitle:@"取消" rightTitle:@"确定" cancelAction:^{
                    
                } sureAction:^{
                    [weakSelf removeNoExistGroup];
                }];
            }
        } faliure:^(NSError * _Nonnull error) {
            
        }];
    }
}

- (void)removeNoExistGroup {
    [[RCIMClient sharedRCIMClient] removeConversation:ConversationType_GROUP targetId:self.targetId];
    [self.navigationController popToRootViewControllerAnimated:YES];
}


- (void)refreshTitle {
    if (self.conversationType == ConversationType_GROUP) {
        RCGroup *group = [[RCIM sharedRCIM] getGroupInfoCache:self.targetId];
        if (![NSString isEmptyString:group.groupName]) {
            self.title = group.groupName;
        }
    }
    else {
        RCUserInfo *userInfo = [[RCIM sharedRCIM] getUserInfoCache:self.targetId];
        if (![NSString isEmptyString:userInfo.name]) {
            self.title = userInfo.name;
        }
    }
}



- (void)pluginBoardView:(RCPluginBoardView *)pluginBoardView clickedItemWithTag:(NSInteger)tag {
    switch (tag) {
        case SHARE_MUSIC_TAG: // 曲谱分享
        {
            
        }
            break;
            
        default:
        {
            [RCNaviDataManager sharedInstance].naviData.uploadVideoDurationLimit = 480.0f;
            [super pluginBoardView:pluginBoardView clickedItemWithTag:tag];
        }
            
            break;
    }
}

- (void)willDisplayMessageCell:(RCMessageBaseCell *)cell atIndexPath:(NSIndexPath *)indexPath {
    if ([cell isKindOfClass:[RCMessageCell class]]) {
        UIImageView *imageView = (UIImageView *)((RCMessageCell *)cell).portraitImageView;
        imageView.contentMode = UIViewContentModeScaleAspectFill;
        imageView.layer.masksToBounds = YES;
    }
}


#pragma mark ----- chatSessionInputBarControl delegate
- (void)sightDidFinishRecord:(NSString *)url thumbnail:(UIImage *)image duration:(NSUInteger)duration {
    RCSightMessage *sightMessage = [RCSightMessage messageWithLocalPath:url thumbnail:image duration:duration];
    
    [self sendMediaMessage:sightMessage pushContent:nil appUpload:YES];
}

- (void)imageDataDidSelect:(NSArray *)selectedImages fullImageRequired:(BOOL)full {
    
    [self becomeFirstResponder];
    __weak KSChatConversationViewController *weakSelf = self;
    dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{
        for (int i = 0; i < selectedImages.count; i++) {
            @autoreleasepool {
                id item = [selectedImages objectAtIndex:i];
                if ([item isKindOfClass:NSData.class]) {
                    NSData *imageData = (NSData *)item;
                    UIImage *image = [UIImage imageWithData:imageData];
                    image = [RCKitUtility fixOrientation:image];
                    // 保留原有逻辑并添加大图缩小的功能
                    [[KSRCloudMediaManager sharedManager] downsizeImage:image completionBlock:^(UIImage * _Nullable outimage, BOOL doNothing) {
                        RCImageMessage *imagemsg;
                        if (doNothing || !outimage) {
                            imagemsg = [RCImageMessage messageWithImage:image];
                            imagemsg.full = full;
                        } else if (outimage) {
                            NSData *newImageData = UIImageJPEGRepresentation(outimage, 1);
                            imagemsg = [RCImageMessage messageWithImageData:newImageData];
                            imagemsg.full = full;
                        }
                        [weakSelf sendMessage:imagemsg pushContent:nil];
                    } progressBlock:^(UIImage * _Nullable outimage, BOOL doNothing) {
                        
                    }];
                    
                }
                else if ([item isKindOfClass:NSDictionary.class]) {
                    NSDictionary *assertInfo = item;
                    if ([assertInfo objectForKey:@"avAsset"]) {
                        AVAsset *model = assertInfo[@"avAsset"];
                        UIImage *image = assertInfo[@"thumbnail"];
                        NSString *localPath = assertInfo[@"localPath"];
                        if (![localPath isKindOfClass:[NSString class]]) {
                            localPath = @"";
                        }
                        dispatch_sync(dispatch_get_main_queue(), ^{
                            NSUInteger duration = round(CMTimeGetSeconds(model.duration));
                            RCSightMessage *sightMsg =
                            [RCSightMessage messageWithAsset:model thumbnail:image duration:duration];
                            sightMsg.localPath = localPath;
                            [weakSelf sendMediaMessage:sightMsg pushContent:nil appUpload:YES];
                        });
                    }
                }
                [NSThread sleepForTimeInterval:0.5];
            }
        }
    });
}

- (void)uploadMedia:(RCMessage *)message uploadListener:(RCUploadMediaStatusListener *)uploadListener {
    // 获取 asset
    if ([message.content isKindOfClass:[RCSightMessage class]]) {
        RCSightMessage *sightMessage = (RCSightMessage *)message.content;
        NSString *fileName = [NSString stringWithFormat:@"sight_%@", [[sightMessage.name componentsSeparatedByString:@"_"] lastObject]];
        NSString *savePath =  [[self getSightSavePath] stringByAppendingPathComponent:fileName];
        // 判断文件是否存在于该文件夹
        if ([[NSFileManager defaultManager] fileExistsAtPath:savePath]) {
            sightMessage.localPath = savePath;
            [self submitFileWithMessage:sightMessage uploadListener:uploadListener];
        }
        else {
            if (([sightMessage.localPath containsString:@"var/mobile/Media/"])) {
                NSURL *fileUrl = [NSURL fileURLWithPath:sightMessage.localPath];
                AVURLAsset *avAsset = [AVURLAsset URLAssetWithURL:fileUrl options:nil];
                [self startExportVideoWithVideoAsset:avAsset presetName:AVAssetExportPreset960x540 savePath:savePath success:^(NSString *outputPath) {
                    sightMessage.localPath = savePath;
                    
                    [self submitFileWithMessage:sightMessage uploadListener:uploadListener];
                } failure:^(NSString *errorMessage, NSError *error) {
                    // 导出失败 直接拷贝上传
                    [self copyFileToPath:savePath uploadListener:uploadListener];
                }];
                
            }
            else {
                // 复制文件到指定文件夹
                [self copyFileToPath:savePath uploadListener:uploadListener];
            }
        }
    }
    else {
        uploadListener.errorBlock(INVALID_PARAMETER);
    }
}

- (void)copyFileToPath:(NSString *)savePath uploadListener:(RCUploadMediaStatusListener *)uploadListener {
    RCMessage *message = uploadListener.currentMessage;
    if ([message.content isKindOfClass:[RCSightMessage class]]) {
        RCSightMessage *sightMessage = (RCSightMessage *)message.content;
        // 复制文件到指定文件夹
        BOOL isSuccess = [self copyMediaFile:sightMessage.localPath toPath:savePath];
        if (isSuccess) {
            sightMessage.localPath = savePath;
            [self submitFileWithMessage:sightMessage uploadListener:uploadListener];
        }
        else {
            uploadListener.errorBlock(INVALID_PARAMETER);
        }
    }
}

- (void)startExportVideoWithVideoAsset:(AVURLAsset *)videoAsset presetName:(NSString *)presetName savePath:(NSString *)savePath success:(void (^)(NSString *outputPath))success failure:(void (^)(NSString *errorMessage, NSError *error))failure {
    NSArray *presets = [AVAssetExportSession exportPresetsCompatibleWithAsset:videoAsset];
    if ([presets containsObject:presetName]) {
        
        NSError *error = nil;
        AVAssetTrack *assetVideoTrack = nil;
        AVAssetTrack *assetAudioTrack = nil;
        CMTime start = CMTimeMakeWithSeconds(0, videoAsset.duration.timescale);
        
        CMTimeRange range = CMTimeRangeMake(start, videoAsset.duration);
        // Check if the asset contains video and audio tracks
        if ([[videoAsset tracksWithMediaType:AVMediaTypeVideo] count] != 0) {
            assetVideoTrack = [videoAsset tracksWithMediaType:AVMediaTypeVideo][0];
        }
        
        if ([[videoAsset tracksWithMediaType:AVMediaTypeAudio] count] != 0) {
            assetAudioTrack = [videoAsset tracksWithMediaType:AVMediaTypeAudio][0];
        }
        
        CMTime insertionPoint = kCMTimeZero;
        
        AVMutableComposition *composition = [[AVMutableComposition alloc] init];
        
        // Insert the video and audio tracks from AVAsset
        if (assetVideoTrack != nil) {
            // 视频通道  工程文件中的轨道，有音频轨、视频轨等，里面可以插入各种对应的素材
            AVMutableCompositionTrack *compositionVideoTrack = [composition addMutableTrackWithMediaType:AVMediaTypeVideo preferredTrackID:kCMPersistentTrackID_Invalid];
            // 视频方向
            [compositionVideoTrack setPreferredTransform:assetVideoTrack.preferredTransform];
            // 把视频轨道数据加入到可变轨道中 这部分可以做视频裁剪TimeRange
            [compositionVideoTrack insertTimeRange:range ofTrack:assetVideoTrack atTime:insertionPoint error:&error];
        }
        
        
        if (assetAudioTrack != nil) {
            AVMutableCompositionTrack *compositionAudioTrack = [composition addMutableTrackWithMediaType:AVMediaTypeAudio preferredTrackID:kCMPersistentTrackID_Invalid];
            compositionAudioTrack.preferredTransform = assetAudioTrack.preferredTransform;
            [compositionAudioTrack insertTimeRange:range ofTrack:assetAudioTrack atTime:insertionPoint error:&error];
        }
        
        AVAssetExportSession *session = [[AVAssetExportSession alloc] initWithAsset:composition presetName:presetName];
        // Optimize for network use.
        session.shouldOptimizeForNetworkUse = YES;
        NSArray *supportedTypeArray = session.supportedFileTypes;
        if ([supportedTypeArray containsObject:AVFileTypeMPEG4]) {
            session.outputFileType = AVFileTypeMPEG4;
        } else if (supportedTypeArray.count == 0) {
            if (failure) {
                failure(@"该视频类型暂不支持导出", nil);
            }
            NSLog(@"No supported file types 视频类型暂不支持导出");
            return;
        } else {
            session.outputFileType = [supportedTypeArray objectAtIndex:0];
            if (videoAsset.URL && videoAsset.URL.lastPathComponent) {
                savePath = [savePath stringByReplacingOccurrencesOfString:@".mp4" withString:[NSString stringWithFormat:@"-%@", videoAsset.URL.lastPathComponent]];
            }
        }
        session.outputURL = [NSURL fileURLWithPath:savePath];
        [session exportAsynchronouslyWithCompletionHandler:^{
            dispatch_async(dispatch_get_main_queue(), ^{
                switch (session.status) {
                    case AVAssetExportSessionStatusUnknown: {
                        NSLog(@"AVAssetExportSessionStatusUnknown");
                    }  break;
                    case AVAssetExportSessionStatusWaiting: {
                        NSLog(@"AVAssetExportSessionStatusWaiting");
                    }  break;
                    case AVAssetExportSessionStatusExporting: {
                        NSLog(@"AVAssetExportSessionStatusExporting");
                    }  break;
                    case AVAssetExportSessionStatusCompleted: {
                        NSLog(@"AVAssetExportSessionStatusCompleted");
                        if (success) {
                            success(savePath);
                        }
                    }  break;
                    case AVAssetExportSessionStatusFailed: {
                        NSLog(@"AVAssetExportSessionStatusFailed");
                        if (failure) {
                            failure(@"视频导出失败", session.error);
                        }
                    }  break;
                    case AVAssetExportSessionStatusCancelled: {
                        NSLog(@"AVAssetExportSessionStatusCancelled");
                        if (failure) {
                            failure(@"导出任务已被取消", nil);
                        }
                    }  break;
                    default: break;
                }
            });
        }];
        
    }
    else {
        if (failure) {
            NSString *errorMessage = [NSString stringWithFormat:@"当前设备不支持该预设:%@", presetName];
            failure(errorMessage, nil);
        }
    }
}


- (void)submitFileWithMessage:(RCSightMessage *)sightMessage uploadListener:(RCUploadMediaStatusListener *)uploadListener {
    NSURL *fileUrl = [NSURL fileURLWithPath:sightMessage.localPath];
    NSData *fileData = [NSData dataWithContentsOfURL:fileUrl];
    
    if (fileData.length) {
        NSString *suffix = [NSString stringWithFormat:@".%@",[fileUrl pathExtension]];
        [[KSUploadManager shareInstance] configBucketName:@"i-m"];
        [[KSUploadManager shareInstance] videoUpload:fileData fileName:@"sightVideo" fileSuffix:suffix progress:^(int64_t bytesWritten, int64_t totalBytes) {
            int progress = (int)(bytesWritten / totalBytes * 100);
            uploadListener.updateBlock(progress);
        } successCallback:^(NSMutableArray * _Nonnull fileUrlArray) {
            NSString *videoUrl = [fileUrlArray lastObject];
            sightMessage.remoteUrl = videoUrl;
            sightMessage.size = fileData.length;
            uploadListener.successBlock(sightMessage);
        } faliure:^(NSError * _Nullable error, NSString * _Nullable descMessaeg) {
            uploadListener.errorBlock(ERRORCODE_TIMEOUT);
        }];
    }
    else {
        uploadListener.errorBlock(INVALID_PARAMETER);
    }
}


- (BOOL)copyMediaFile:(NSString *)sourcePath toPath:(NSString *)toPath
{
    BOOL retVal = YES;
    if ([[NSFileManager defaultManager] fileExistsAtPath:sourcePath]) { // 如果原文件存在

        if (![[NSFileManager defaultManager] fileExistsAtPath:toPath])
        {
            retVal = [[NSFileManager defaultManager] copyItemAtPath:sourcePath toPath:toPath error:NULL];
        }
    }
    else {
        retVal = NO;
    }
    
    return retVal;
}

- (NSString *)getSightSavePath {
    NSString *componentString = [NSString stringWithFormat:@"RongCloud/%@/RCSightCache", self.targetId];
    NSString *path = [[NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES)lastObject] stringByAppendingPathComponent:componentString];
    NSFileManager *fileManager = [NSFileManager defaultManager];
    BOOL isDir = FALSE;
    BOOL isDirExist = [fileManager fileExistsAtPath:path isDirectory:&isDir];
    if(!(isDirExist && isDir)) {
        BOOL bCreateDir = [fileManager createDirectoryAtPath:path withIntermediateDirectories:YES attributes:nil error:nil];
        if(!bCreateDir){
            NSLog(@"创建文件夹失败！");
        }
        NSLog(@"创建文件夹成功，文件路径%@",path);
    }
    NSLog(@"文件路径%@",path);
    return path;
}

/*
#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
}
*/

@end