whose_ios/NIMDemo/NIMDemo/SocialDetailViewController.m

//
//  SocialDetailViewController.m
//  NIMDemo
//
//  Created by Fenix Wang on 2017/6/28.
//  Copyright © 2017年 Netease. All rights reserved.
//

#import "SocialDetailViewController.h"
#import "SocialItemData.h"
#import "SocialCommentData.h"
#import "HttpRequest.h"
#import "SocialDetailTableViewCell.h"
#import "SocialCommentDetailTableViewCell.h"
#import "UIView+NTES.h"
#import "SVProgressHUD.h"
#import "UIAlertView+NTESBlock.h"
#import "User.h"

@interface SocialDetailViewController ()<UIScrollViewDelegate, UITextFieldDelegate>

@property (nonatomic, strong) NSMutableArray            *likeArr;
@property (nonatomic, strong) NSMutableArray            *commentArr;
@property (nonatomic, strong) SocialItemData            *data;

@property (nonatomic, strong) NSMutableArray            *dataArr;
@property (nonatomic, assign) float                     infoHeight;
@property (nonatomic, assign) BOOL                      isFetching;
@property (nonatomic, assign) BOOL                      flagRefresh;

@property (nonatomic, strong) UIView                    *commentContainer;
@property (nonatomic, strong) UITextField               *commentTextField;
@property (nonatomic, strong) UIButton                  *commentBtn;

@property (nonatomic, strong) NSString                  *replyId;

@end

@implementation SocialDetailViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
//    if ([self respondsToSelector:@selector(edgesForExtendedLayout)])
//        self.edgesForExtendedLayout = UIRectEdgeNone;
    
    [self.view addSubview:[self tableView]];
    
    _flagRefresh = NO;
    
    _commentContainer = [[UIView alloc] initWithFrame:CGRectMake(0, self.view.height - 50, self.view.width, 50)];
    _commentContainer.backgroundColor = UIColor.whiteColor;
    [self.view addSubview:_commentContainer];
    
    _commentBtn = [UIButton buttonWithType:UIButtonTypeCustom];
    _commentBtn.frame = CGRectMake(_commentContainer.width - 50, 0, 50, _commentContainer.height);
    [_commentBtn setImage:[UIImage imageNamed:@"朋友圈详情_07"] forState:UIControlStateNormal];
    [_commentBtn addTarget:self action:@selector(onTouchComment:) forControlEvents:UIControlEventTouchUpInside];
    [_commentContainer addSubview:_commentBtn];
    
    UIView *txtBg = [[UIView alloc] initWithFrame:CGRectMake(10, 8, _commentContainer.width - 50 - 10, _commentContainer.height-16)];
    txtBg.backgroundColor = UIColorFromRGB(0xeeeeee);
    txtBg.layer.cornerRadius = 3;
    [_commentContainer addSubview:txtBg];
    
    _commentTextField = [[UITextField alloc] initWithFrame:CGRectMake(10, 0, txtBg.width - 20, txtBg.height)];
    _commentTextField.font = [UIFont systemFontOfSize:15];
    _commentTextField.placeholder = @"我要评论";
    _commentTextField.delegate = self;
    [txtBg addSubview:_commentTextField];
    
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


- (void)viewWillAppear:(BOOL)animated{
    [super viewWillAppear:animated];
    
    [self.navigationItem setTitle:@"详情"];
}

- (UITableView *)tableView
{
    if (!self.isViewLoaded) {
        return nil;
    }
    if (!_tableView) {
        _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 0, self.view.width, self.view.height) style:UITableViewStylePlain];
        _tableView.contentInset = UIEdgeInsetsMake(0, 0, 50, 0);
        _tableView.backgroundColor  = [UIColor clearColor];
        _tableView.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
        _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
        _tableView.dataSource = self;
        _tableView.delegate   = self;
    }
    return _tableView;
}

- (void)setSocialId:(NSString *)socialId{
    [SVProgressHUD show];
    [[HttpRequest shared] socialData:socialId success:^(SocialItemData * _Nullable socialData) {
        [SVProgressHUD dismiss];
        [self setSocialData:socialData];
    } failure:^{
        [SVProgressHUD dismiss];
    }];
}

- (void)setSocialData:(SocialItemData *)socialData{
    
    _data = socialData;
    
    _dataArr = [[NSMutableArray alloc] init];
    [_dataArr addObject:_data];
    
    [self fetchCommentList];
}



#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if(_dataArr)
        return _dataArr.count;
    return 0;
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    NSObject *dataObj = [_dataArr objectAtIndex:indexPath.row];
    
    UITableViewCell *baseCell = nil;
    
    if([dataObj isKindOfClass:[SocialItemData class]])
    {
        NSString *cellId = @"social";
        SocialDetailTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];
        
        if(!cell)
        {
            cell = [[SocialDetailTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
            [cell initWidth:self.view.frame.size.width];
        }
        
        [cell setSocialData:(SocialItemData *)dataObj];
        _infoHeight = cell.cellHeight;
        
        baseCell = cell;
    }
    else if([dataObj isKindOfClass:[SocialCommentData class]])
    {
        NSString *cellId = @"comment";
        SocialCommentDetailTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:cellId];
        
        if(!cell)
        {
            cell = [[SocialCommentDetailTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:cellId];
            [cell initWidth:self.view.frame.size.width];
        }
        
        [cell setSocialCommentData:(SocialCommentData *)dataObj];
        baseCell = cell;
    }

    return baseCell;
}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    NSObject *dataObj = [_dataArr objectAtIndex:indexPath.row];
    
    if([dataObj isKindOfClass:[SocialCommentData class]])
    {
        SocialCommentData *commentData = (SocialCommentData *)dataObj;
        return commentData.cellHeight;
    }
    
    return _infoHeight;
}




- (void)fetchCommentList{
    
    if(_isFetching)
        return;
    
    _isFetching = YES;
    
    NSString *lastId = nil;
    if(self.commentArr && self.commentArr.count){
        SocialCommentData *lastData = [self.commentArr lastObject];
        lastId = lastData.commentId;
    }
    
    
    [[HttpRequest shared] socialCommentList:_data.socialId lastId:lastId success:^(NSMutableArray * _Nullable dataList) {
        if(!self.commentArr)
            self.commentArr = dataList;
        else
            [self.commentArr addObjectsFromArray:dataList];
        
        [self.dataArr addObjectsFromArray:dataList];
        
        [self.tableView reloadData];
        
        _isFetching = NO;
    } failure:^{
        _isFetching = NO;
    }];
}



- (void)deleteSocial:(NSString *)socialId{
    
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:nil message:@"是否删除该动态？" delegate:nil cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
    [alert showAlertWithCompletionHandler:^(NSInteger index) {
        if(index == 1)
        {
            [SVProgressHUD show];
            [[HttpRequest shared] deleteSocialData:socialId success:^(NSString * _Nullable socialId) {
                [SVProgressHUD dismiss];
                
                [self.navigationController popViewControllerAnimated:YES];
            } failure:^{
                [SVProgressHUD dismiss];
            }];
        }
    }];
    
}



- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
    //康海涛测试Ok的
    CGPoint offset1 = scrollView.contentOffset;
    CGRect bounds1 = scrollView.bounds;
    CGSize size1 = scrollView.contentSize;
    UIEdgeInsets inset1 = scrollView.contentInset;
    float y1 = offset1.y + bounds1.size.height - inset1.bottom;
    float h1 = size1.height;
    
    //NSLog(@"%f %f %i %f", y1, h1, _flagRefresh, bounds1.size.height);
    
    if(h1 < bounds1.size.height)
        return;
    
    if (y1 > h1 + 50) {
        _flagRefresh = YES;
    }
    else if (y1 == h1) {
        if(_flagRefresh)
        {
            _flagRefresh = NO;
            NSLog(@"下拉刷新");
            [self fetchCommentList];
        }
    }
}

- (void)onTouchComment:(int)sender{
    
    if([_commentTextField.text isEqualToString:@""])
    {
        if(_commentContainer.bottom == self.view.bottom)
        {
            [self beginComment:nil];
        }
        else
        {
            [_commentTextField resignFirstResponder];
        }
    }
    else
    {
        [self sendComment:_commentTextField.text replyId:_replyId];
    }
    
}

- (void)beginComment:(NSString *)replyId{
    
    _replyId = replyId;
    _commentTextField.text = @"";
    if(_replyId && _replyId.length > 0)
    {
        NSString *nick = [[User sharedInfo] getUserNameById:replyId];
        _commentTextField.placeholder = [NSString stringWithFormat:@"回复%@", nick];
    }
    else
    {
        _commentTextField.placeholder = @"我要评论";
    }
    [_commentTextField becomeFirstResponder];
    
}

- (BOOL)textField:(UITextField *)textField shouldChangeCharactersInRange:(NSRange)range replacementString:(NSString *)string;
{
    if ([string isEqualToString:@"\n"]) {
        [self sendComment:textField.text replyId:_replyId];
        return NO;
    }
    return YES;
}

- (void)sendComment:(NSString *)comment replyId:(NSString *)replyId{
    
    NSLog(@"sender %@", comment);
    
    if(comment && ![comment isEqualToString:@""])
    {
        [[HttpRequest shared] socialComment:_data.socialId replyId:replyId comment:comment success:^(SocialCommentData * _Nullable commentData, int commentCount) {
            
            _data.comments = commentCount;
            [self fetchCommentList];
            
        } failure:^{
            
        }];
    }
    
    _commentTextField.text = @"";
    [_commentTextField resignFirstResponder];
}


- (void)keyboardWillChangeFrame:(NSNotification *)notification
{

    NSDictionary *userInfo = notification.userInfo;
    CGRect endFrame   = [userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
    //CGRect beginFrame = [userInfo[UIKeyboardFrameBeginUserInfoKey] CGRectValue];
    
    float keyBoardFrameTop = endFrame.origin.y;
    _commentContainer.bottom = keyBoardFrameTop;
}

@end