ios-chat/wfuikit/WFChatUIKit/Voip/Conference/WFCUConferenceMemberManagerViewController.m

//
//  WFCUConferenceMemberManagerViewController.m
//  WFChatUIKit
//
//  Created by Tom Lee on 2021/2/15.
//  Copyright © 2020 WildFireChat. All rights reserved.
//
#if WFCU_SUPPORT_VOIP
#import "WFCUConferenceMemberManagerViewController.h"
#import "UIColor+YH.h"
#import "WFCUConferenceUnmuteRequestTableViewController.h"
#import "WFCUConferenceHandupTableViewController.h"
#import <WFAVEngineKit/WFAVEngineKit.h>
#import "WFCUUtilities.h"
#import "WFCUConferenceMember.h"
#import "WFCUConferenceManager.h"
#import "WFCUConferenceMemberTableViewCell.h"
#import "WFCUConferenceInviteViewController.h"
#import "WFZConferenceInfo.h"
#import "WFCUPinyinUtility.h"
#import "WFCUProfileTableViewController.h"
#import "WFCUImage.h"


@interface WFCUConferenceMemberManagerViewController () <UITableViewDataSource, UITableViewDelegate, UISearchBarDelegate>
@property (nonatomic, strong)UITableView *tableView;
@property (nonatomic, strong)UISearchBar *searchBar;
@property (nonatomic, strong) NSMutableArray<WFCUConferenceMember *> *participants;

@property(nonatomic, strong)UIButton *muteAllBtn;
@property(nonatomic, strong)UIButton *unmuteAllBtn;

@property(nonatomic, strong)UIView *headerViewContainer;
@property(nonatomic, strong)UIButton *unmuteAudioRequestBtn;
@property(nonatomic, strong)UIButton *unmuteVideoRequestBtn;
@property(nonatomic, strong)UIButton *handupBtn;
@end

@implementation WFCUConferenceMemberManagerViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, 40)];
    self.searchBar.delegate = self;
    self.searchBar.placeholder = @"搜索";
    self.searchBar.barStyle = UIBarStyleDefault;
    
    self.tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.view.bounds.size.width, self.view.bounds.size.height)];
    self.tableView.delegate = self;
    self.tableView.dataSource = self;
    if (@available(iOS 15, *)) {
        self.tableView.sectionHeaderTopPadding = 0;
    }
    self.tableView.sectionIndexColor = [UIColor colorWithHexString:@"0x4e4e4e"];
    self.tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
    [self.tableView registerClass:[WFCUConferenceMemberTableViewCell class] forCellReuseIdentifier:@"cell"];
    
    self.headerViewContainer = [[UIView alloc] initWithFrame:CGRectZero];
    [self.headerViewContainer addSubview:self.searchBar];
    
    self.unmuteAudioRequestBtn = [[UIButton alloc] initWithFrame:CGRectZero];
    [self.unmuteAudioRequestBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    self.unmuteAudioRequestBtn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
    [self.unmuteAudioRequestBtn addTarget:self action:@selector(onUnmuteAudioRequestBtnPressed:) forControlEvents:UIControlEventTouchDown];
    [self.headerViewContainer addSubview:self.unmuteAudioRequestBtn];
    
    self.unmuteVideoRequestBtn = [[UIButton alloc] initWithFrame:CGRectZero];
    [self.unmuteVideoRequestBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    self.unmuteVideoRequestBtn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
    [self.unmuteVideoRequestBtn addTarget:self action:@selector(onUnmuteVideoRequestBtnPressed:) forControlEvents:UIControlEventTouchDown];
    [self.headerViewContainer addSubview:self.unmuteVideoRequestBtn];
    
    self.handupBtn = [[UIButton alloc] initWithFrame:CGRectZero];
    [self.handupBtn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    self.handupBtn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
    [self.handupBtn addTarget:self action:@selector(onHandupBtnPressed:) forControlEvents:UIControlEventTouchDown];
    [self.headerViewContainer addSubview:self.handupBtn];
    
    self.tableView.tableHeaderView = self.headerViewContainer;
    
    [self.view addSubview:self.tableView];
    
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:WFCString(@"Close") style:UIBarButtonItemStyleDone target:self action:@selector(onClose:)];
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:WFCString(@"Invite") style:UIBarButtonItemStyleDone target:self action:@selector(onInvite:)];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onConferenceMemberChanged:) name:@"kConferenceMemberChanged" object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onConferenceEnded:) name:@"kConferenceEnded" object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onConferenceMutedStateChanged:) name:@"kConferenceMutedStateChanged" object:nil];
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onConferenceCommandStateChanged:) name:@"kConferenceCommandStateChanged" object:nil];
    
    self.title = WFCString(@"ConferenceMembers");
    
    [self loadData];
    [self.tableView reloadData];
}

- (void)onUnmuteAudioRequestBtnPressed:(id)sender {
    WFCUConferenceUnmuteRequestTableViewController *vc = [[WFCUConferenceUnmuteRequestTableViewController alloc] init];
    vc.isAudio = YES;
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
    [self presentViewController:nav animated:YES completion:nil];
}

- (void)onUnmuteVideoRequestBtnPressed:(id)sender {
    WFCUConferenceUnmuteRequestTableViewController *vc = [[WFCUConferenceUnmuteRequestTableViewController alloc] init];
    vc.isAudio = NO;
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
    [self presentViewController:nav animated:YES completion:nil];
}

- (void)onHandupBtnPressed:(id)sender {
    WFCUConferenceHandupTableViewController *vc = [[WFCUConferenceHandupTableViewController alloc] init];
    UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:vc];
    [self presentViewController:nav animated:YES completion:nil];
}

- (void)updateTableViewHeader {
    if([self.searchBar isFirstResponder] || ([WFCUConferenceManager sharedInstance].applyingUnmuteAudioMembers.count == 0 && [WFCUConferenceManager sharedInstance].applyingUnmuteVideoMembers.count == 0 && [WFCUConferenceManager sharedInstance].handupMembers.count == 0)) {
        self.headerViewContainer.frame = CGRectMake(0, 50, self.view.bounds.size.width, 40);
        self.unmuteAudioRequestBtn.frame = CGRectZero;
        self.unmuteVideoRequestBtn.frame = CGRectZero;
        self.handupBtn.frame = CGRectZero;
    } else {
        int height = 40;
        NSMutableArray<NSString *> *applyingUnmuteAudioMembers = [WFCUConferenceManager sharedInstance].applyingUnmuteAudioMembers;
        if(applyingUnmuteAudioMembers.count) {
            self.unmuteAudioRequestBtn.frame = CGRectMake(0, height, self.view.bounds.size.width, 40);
            NSString *name;
            if(applyingUnmuteAudioMembers.count == 1) {
                WFCCUserInfo *userInfo = [[WFCCIMService sharedWFCIMService] getUserInfo:applyingUnmuteAudioMembers[0] refresh:NO];
                name = userInfo.friendAlias.length ? userInfo.friendAlias : userInfo.displayName;
                if(!name.length) {
                    name = @"1名成员";
                }
            } else {
                name = [NSString stringWithFormat:@"%ld名成员", applyingUnmuteAudioMembers.count];
            }
            [self.unmuteAudioRequestBtn setTitle:[NSString stringWithFormat:@" %@正在申请解除静音", name] forState:UIControlStateNormal];
            height += 40;
        } else {
            self.unmuteAudioRequestBtn.frame = CGRectZero;
        }
        
        NSMutableArray<NSString *> *applyingUnmuteVideoMembers = [WFCUConferenceManager sharedInstance].applyingUnmuteVideoMembers;
        if(applyingUnmuteVideoMembers.count) {
            self.unmuteVideoRequestBtn.frame = CGRectMake(0, height, self.view.bounds.size.width, 40);
            NSString *name;
            if(applyingUnmuteVideoMembers.count == 1) {
                WFCCUserInfo *userInfo = [[WFCCIMService sharedWFCIMService] getUserInfo:applyingUnmuteVideoMembers[0] refresh:NO];
                name = userInfo.friendAlias.length ? userInfo.friendAlias : userInfo.displayName;
                if(!name.length) {
                    name = @"1名成员";
                }
            } else {
                name = [NSString stringWithFormat:@"%ld名成员", applyingUnmuteVideoMembers.count];
            }
            [self.unmuteVideoRequestBtn setTitle:[NSString stringWithFormat:@" %@正在申请打开摄像头", name] forState:UIControlStateNormal];
            height += 40;
        } else {
            self.unmuteVideoRequestBtn.frame = CGRectZero;
        }
        
        NSMutableArray<NSString *> *handupMembers = [WFCUConferenceManager sharedInstance].handupMembers;
        if([WFCUConferenceManager sharedInstance].handupMembers.count) {
            self.handupBtn.frame = CGRectMake(0, height, self.view.bounds.size.width, 40);
            NSString *name;
            if(handupMembers.count == 1) {
                WFCCUserInfo *userInfo = [[WFCCIMService sharedWFCIMService] getUserInfo:handupMembers[0] refresh:NO];
                name = userInfo.friendAlias.length ? userInfo.friendAlias : userInfo.displayName;
                if(!name.length) {
                    name = @"1名成员";
                }
            } else {
                name = [NSString stringWithFormat:@"%ld名成员", handupMembers.count];
            }
            [self.handupBtn setTitle:[NSString stringWithFormat:@" %@正在举手", name] forState:UIControlStateNormal];
            height += 40;
        } else {
            self.handupBtn.frame = CGRectZero;
        }
        self.headerViewContainer.frame = CGRectMake(0, 50, self.view.bounds.size.width, height);
    }
}

- (void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];
    if(!self.muteAllBtn && [[WFCUConferenceManager sharedInstance] isOwner]) {
        CGRect bounds = self.view.bounds;
        CGFloat buttonHeight = 48;
        CGFloat buttonWidth = bounds.size.width/2 - 16 - 8;
        
        self.muteAllBtn = [self createBtn:CGRectMake(16, bounds.size.height - [WFCUUtilities wf_safeDistanceBottom] - buttonHeight - 16, buttonWidth, buttonHeight) title:WFCString(@"MuteAll") action:@selector(onMuteAllBtnPressed:)];
        self.unmuteAllBtn = [self createBtn:CGRectMake(bounds.size.width - 16 - buttonWidth, bounds.size.height - [WFCUUtilities wf_safeDistanceBottom] - buttonHeight - 16, buttonWidth, buttonHeight) title:WFCString(@"UnmuteAll") action:@selector(onUnmuteAllBtnPressed:)];
    }
    [self updateTableViewHeader];
}

- (UIButton *)createBtn:(CGRect)frame title:(NSString *)title action:(SEL)action {
    UIButton *btn = [[UIButton alloc] initWithFrame:frame];
    [btn setTitle:title forState:UIControlStateNormal];
    btn.titleLabel.font = [UIFont systemFontOfSize:14];
    [btn setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
    btn.layer.borderWidth = 1;
    btn.layer.borderColor = [UIColor grayColor].CGColor;
    btn.layer.masksToBounds = YES;
    btn.layer.cornerRadius = 5.f;
    [btn addTarget:self action:action forControlEvents:UIControlEventTouchDown];
    [self.view addSubview:btn];
    
    return btn;
}

- (void)onMuteAllBtnPressed:(id)sender {
    [[WFCUConferenceManager sharedInstance] presentCommandAlertView:self message:@"所有成员将被静音" actionTitle:@"全体静音" cancelTitle:nil contentText:@"允许成员自主解除静音" checkBox:YES actionHandler:^(BOOL checked) {
        [[WFCUConferenceManager sharedInstance] requestMuteAll:checked];
    } cancelHandler:nil];
}

- (void)onUnmuteAllBtnPressed:(id)sender {
    [[WFCUConferenceManager sharedInstance] presentCommandAlertView:self message:@"允许全体成员开麦" actionTitle:@"取消全体静音" cancelTitle:nil contentText:@"是否要求成员开麦" checkBox:YES actionHandler:^(BOOL checked) {
        [[WFCUConferenceManager sharedInstance] requestUnmuteAll:checked];
    } cancelHandler:nil];
}

- (void)loadData {
    self.participants = [[NSMutableArray alloc] init];
    
    WFAVCallSession *callSession = [WFAVEngineKit sharedEngineKit].currentSession;
    NSArray<WFAVParticipantProfile *> *ps =  [WFAVEngineKit sharedEngineKit].currentSession.participants;
    
    NSMutableArray *audiences = [[NSMutableArray alloc] init];
    for (WFAVParticipantProfile *p in ps) {
        WFCUConferenceMember *member = [[WFCUConferenceMember alloc] init];
        member.userId = p.userId;
        member.isHost = [p.userId isEqualToString:[WFCUConferenceManager sharedInstance].currentConferenceInfo.owner];
        member.isVideoEnabled = !p.videoMuted;
        member.isAudioEnabled = !p.audioMuted;
        member.isMe = NO;
        member.isAudience = p.audience;
        member.isAudioOnly = callSession.audioOnly;
        
        if(self.searchBar.isFirstResponder && ![self isMatchSearchText:member.userId]) {
            continue;
        }
        
        if (p.audience) {
            [audiences addObject:member];
        } else {
            if(member.isHost) {
                [self.participants insertObject:member atIndex:0];
            } else {
                [self.participants addObject:member];
            }
        }
    }
    
    
    WFCUConferenceMember *member = [[WFCUConferenceMember alloc] init];
    member.userId = [WFCCNetworkService sharedInstance].userId;
    member.isHost = [member.userId isEqualToString:[WFCUConferenceManager sharedInstance].currentConferenceInfo.owner];
    member.isVideoEnabled = !callSession.isVideoMuted;
    member.isAudioEnabled = !callSession.isAudioMuted;
    member.isMe = YES;
    member.isAudience = callSession.isAudience;
    member.isAudioOnly = callSession.audioOnly;
    if(!self.searchBar.isFirstResponder || [self isMatchSearchText:member.userId]) {
        if(self.participants.count && self.participants[0].isHost) {
            [self.participants insertObject:member atIndex:1];
        } else {
            [self.participants insertObject:member atIndex:0];
        }
    }
    [self.participants addObjectsFromArray:audiences];
}

- (BOOL)isMatchSearchText:(NSString *)userId {
    WFCCUserInfo *userInfo = [[WFCCIMService sharedWFCIMService] getUserInfo:userId refresh:NO];
    NSString *searchString = self.searchBar.text;
    BOOL matched = NO;
    if([userInfo.displayName containsString:searchString] || [userInfo.friendAlias containsString:searchString]) {
        matched = YES;
    } else {
        WFCUPinyinUtility *pu = [[WFCUPinyinUtility alloc] init];
        if(![pu isChinese:searchString]) {
            if([pu isMatch:userInfo.displayName ofPinYin:searchString] || [pu isMatch:userInfo.friendAlias ofPinYin:searchString]) {
                matched = YES;
            }
        }
    }
    return matched;;
}

- (void)onResetKeyboard:(id)sender {
    [self.searchBar resignFirstResponder];
}

- (void)onConferenceMemberChanged:(id)sender {
    [self loadData];
    [self.tableView reloadData];
}

- (void)onConferenceEnded:(id)sender {
    [self onClose:nil];
}

- (void)onConferenceCommandStateChanged:(id)sender {
    [self loadData];
    [self.tableView reloadData];
    [self updateTableViewHeader];
}

- (void)onConferenceMutedStateChanged:(id)sender {
    [self loadData];
    [self.tableView reloadData];
}

- (void)onClose:(id)sender {
    [self dismissViewControllerAnimated:YES completion:nil];
}

- (void)onInvite:(id)sender {
    WFCUConferenceInviteViewController *pvc = [[WFCUConferenceInviteViewController alloc] init];
    
    WFCCConferenceInviteMessageContent *invite = [[WFCCConferenceInviteMessageContent alloc] init];
    WFAVCallSession *currentSession = [WFAVEngineKit sharedEngineKit].currentSession;
    invite.callId = currentSession.callId;
    invite.pin = currentSession.pin;
    invite.audioOnly = currentSession.audioOnly;
    invite.host = currentSession.host;
    invite.title = currentSession.title;
    invite.desc = currentSession.desc;
    invite.audience = currentSession.defaultAudience;
    invite.advanced = currentSession.isAdvanced;
    invite.password = [WFCUConferenceManager sharedInstance].currentConferenceInfo.password;
    
    pvc.invite = invite;
    
    UINavigationController *navi = [[UINavigationController alloc] initWithRootViewController:pvc];

    [self presentViewController:navi animated:YES completion:nil];
}

- (nonnull UITableViewCell *)tableView:(nonnull UITableView *)tableView cellForRowAtIndexPath:(nonnull NSIndexPath *)indexPath {
    WFCUConferenceMemberTableViewCell *cell = (WFCUConferenceMemberTableViewCell *)[tableView dequeueReusableCellWithIdentifier:@"cell"];
    cell.member = self.participants[indexPath.row];
    return cell;
}

-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    return 56;
}

- (NSInteger)tableView:(nonnull UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.participants.count;
}

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
    WFCUConferenceMember *member;
    member = self.participants[indexPath.row];
    __weak typeof(self)ws = self;
    
    UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"成员管理" message:nil preferredStyle:UIAlertControllerStyleActionSheet];
    
    UIAlertAction *actionCancel = [UIAlertAction actionWithTitle:WFCString(@"Cancel") style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
        
    }];
    
    UIAlertAction *showProfile = [UIAlertAction actionWithTitle:@"查看用户信息" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        WFCUProfileTableViewController *vc = [[WFCUProfileTableViewController alloc] init];
        vc.userId = member.userId;
        vc.hidesBottomBarWhenPushed = YES;
        [ws.navigationController pushViewController:vc animated:YES];
    }];
    
    UIAlertAction *requestPublish = [UIAlertAction actionWithTitle:@"邀请发言" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
//        [[WFCUConferenceManager sharedInstance] request:member.userId changeModel:NO inConference:[WFAVEngineKit sharedEngineKit].currentSession.callId];
        [[WFCUConferenceManager sharedInstance] requestMember:member.userId Mute:NO];
    }];
    
    UIAlertAction *requestUnpublish = [UIAlertAction actionWithTitle:@"取消发言" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] requestMember:member.userId Mute:YES];
    }];
    
    UIAlertAction *requestQuit = [UIAlertAction actionWithTitle:@"移除成员" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        WFAVCallSession *currentSession = [WFAVEngineKit sharedEngineKit].currentSession;
        [currentSession kickoffParticipant:member.userId success:^{
            NSLog(@"kickoff success");
        } error:^(int error_code) {
            NSLog(@"kickoff error");
        }];
    }];
    
    UIAlertAction *enableAudio = [UIAlertAction actionWithTitle:@"开启音频" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteAudio:member.isAudioEnabled];
    }];
    UIAlertAction *enableVideo = [UIAlertAction actionWithTitle:@"开启视频" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteVideo:member.isVideoEnabled];
    }];
    UIAlertAction *enableAudioVideo = [UIAlertAction actionWithTitle:@"开启音视频" style:UIAlertActionStyleDefault handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteAudioVideo:member.isVideoEnabled];
    }];
    
    UIAlertAction *muteAudio = [UIAlertAction actionWithTitle:@"关闭音频" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteAudio:member.isAudioEnabled];
    }];
    
    UIAlertAction *muteVideo = [UIAlertAction actionWithTitle:@"关闭视频" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteVideo:member.isVideoEnabled];
    }];
    
    UIAlertAction *muteAudioVideo = [UIAlertAction actionWithTitle:@"关闭音视频" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] muteAudioVideo:member.isVideoEnabled];
    }];
    
    UIAlertAction *focusMember = [UIAlertAction actionWithTitle:@"设置为焦点用户" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] requestFocus:member.userId];
    }];
    
    UIAlertAction *cancelFocusMember = [UIAlertAction actionWithTitle:@"取消焦点用户" style:UIAlertActionStyleDestructive handler:^(UIAlertAction *action) {
        [[WFCUConferenceManager sharedInstance] requestCancelFocus];
    }];
    
    [alertController addAction:actionCancel];
    [alertController addAction:showProfile];
    
    if([[WFCUConferenceManager sharedInstance].currentConferenceInfo.owner isEqualToString:[WFCCNetworkService sharedInstance].userId] && !member.isMe) {
        if(!member.isAudience) {
            [alertController addAction:requestUnpublish];
        } else {
            [alertController addAction:requestPublish];
        }
        [alertController addAction:requestQuit];
    } else if(member.isMe) {
        if(member.isAudience) {
            if([[WFCUConferenceManager sharedInstance].currentConferenceInfo.owner isEqualToString:[WFCCNetworkService sharedInstance].userId] || [WFCUConferenceManager sharedInstance].currentConferenceInfo.allowTurnOnMic) {
                [alertController addAction:enableAudio];
                [alertController addAction:enableVideo];
                [alertController addAction:enableAudioVideo];
            } else {
                [alertController addAction:enableVideo];
                //Todo 举手请求发言
            }
        } else {
            if(member.isAudioEnabled) {
                [alertController addAction:muteAudio];
            } else {
                [alertController addAction:enableAudio];
            }
            
            if(member.isVideoEnabled) {
                [alertController addAction:muteVideo];
            } else {
                [alertController addAction:enableVideo];
            }
            
            if(member.isAudioEnabled && member.isVideoEnabled) {
                [alertController addAction:muteAudioVideo];
            } else if(!member.isAudioEnabled && !member.isVideoEnabled) {
                [alertController addAction:enableAudioVideo];
            }
        }
    }
    
    if([[WFCUConferenceManager sharedInstance].currentConferenceInfo.owner isEqualToString:[WFCCNetworkService sharedInstance].userId]) {
        if([member.userId isEqualToString:[WFCUConferenceManager sharedInstance].currentConferenceInfo.focus]) {
            [alertController addAction:cancelFocusMember];
        } else {
            [alertController addAction:focusMember];
        }
    }
    
    [self presentViewController:alertController animated:YES completion:nil];
}
#pragma mark - UISearchBarDelegate
- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
    return YES;
}

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar {
    [self loadData];
    [self.tableView reloadData];
    self.searchBar.showsCancelButton = YES;
    [self updateTableViewHeader];
}

- (BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar {
    return YES;
}

- (void)searchBarTextDidEndEditing:(UISearchBar *)searchBar {
    [self loadData];
    [self.tableView reloadData];
    self.searchBar.showsCancelButton = NO;
    self.searchBar.text = nil;
    [self updateTableViewHeader];
}

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
    [self loadData];
    [self.tableView reloadData];
}

- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
    
}

- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
    [self.searchBar resignFirstResponder];
}
@end
#endif