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//
// ChatViewController.m
// Juick
//
// Created by Vitaly Takmazov on 04/03/2018.
// Copyright © 2018 com.juick. All rights reserved.
//
#import "ChatViewController.h"
#import "BubbleMessageCell.h"
#import "APIClient.h"
@interface ChatViewController ()
@property (nonatomic, readwrite, retain) UIView *inputAccessoryView;
@property (nonatomic, strong) NSString *me;
@end
@implementation ChatViewController
- (void)viewDidLoad {
[super viewDidLoad];
[self.navigationController.visibleViewController setTitle:self.uname];
[self.tableView registerNib:[UINib nibWithNibName:@"BubbleMessageCell" bundle:[NSBundle mainBundle]] forCellReuseIdentifier:@"bubbleMessageCell"];
self.tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
self.tableView.keyboardDismissMode = UIScrollViewKeyboardDismissModeInteractive;
self.tableView.allowsSelection = NO;
self.me = [SAMKeychain passwordForService:[[NSBundle mainBundle] bundleIdentifier] account:@"com.juick.username"];
[self reloadChat];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillChangeFrame:) name:UIKeyboardWillChangeFrameNotification object:nil];
self.refreshControl = [UIRefreshControl new];
[self.refreshControl addTarget:self action:@selector(reloadChat) forControlEvents:UIControlEventValueChanged];
[self addObserver:self forKeyPath:@"uname" options:0 context:nil];
}
-(void) reloadChat {
self.messages = [NSMutableArray array];
[self.tableView reloadData];
[[APIClient sharedClient] fetchChatWithUser:self.uname callback:^(NSArray *messages, NSError *err) {
if (err == nil) {
[self.messages addObjectsFromArray:[[messages reverseObjectEnumerator] allObjects]];
NSMutableArray *indexPaths = [NSMutableArray new];
for (NSUInteger index = 0; index < [messages count]; index++) {
[indexPaths addObject:[NSIndexPath indexPathForRow:index inSection: 0]];
}
[self.tableView beginUpdates];
[self.tableView insertRowsAtIndexPaths:indexPaths withRowAnimation:YES];
[self.tableView endUpdates];
NSInteger messagesCount = [self.messages count];
if (messagesCount > 0) {
[self.tableView scrollToRowAtIndexPath:[NSIndexPath indexPathForRow:[self.messages count]-1 inSection:0] atScrollPosition:UITableViewScrollPositionBottom animated:NO];
}
}
[self.refreshControl endRefreshing];
}];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
return 1;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
return [self.messages count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
BubbleMessageCell *cell = [tableView dequeueReusableCellWithIdentifier:@"bubbleMessageCell" forIndexPath:indexPath];
Message *message = [self.messages objectAtIndex:indexPath.row];
[cell configureWithMessage:message isMe:[self.me isEqualToString:message.user.uname]];
return cell;
}
-(BOOL) canBecomeFirstResponder {
return YES;
}
- (UIView *) inputAccessoryView {
if (!_inputAccessoryView) {
PHFComposeBarView *composeView = [[PHFComposeBarView alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height - PHFComposeBarViewInitialHeight, self.view.bounds.size.width, PHFComposeBarViewInitialHeight)];
composeView.delegate = self;
[composeView.bottomAnchor constraintEqualToSystemSpacingBelowAnchor:self.view.safeAreaLayoutGuide.bottomAnchor multiplier:1.0f];
composeView.maxLinesCount = 4;
_inputAccessoryView = composeView;
}
return _inputAccessoryView;
}
-(void) keyboardWillChangeFrame:(NSNotification *)notification {
NSDictionary *userInfo = [notification userInfo];
if (userInfo) {
CGRect beginFrame = [userInfo [UIKeyboardFrameBeginUserInfoKey] CGRectValue];
CGRect endFrame = [userInfo[UIKeyboardFrameEndUserInfoKey] CGRectValue];
CGFloat delta = endFrame.origin.y - beginFrame.origin.y;
CGFloat duration = [userInfo[UIKeyboardAnimationDurationUserInfoKey] floatValue];
UIViewAnimationCurve animationCurve = [userInfo[UIKeyboardAnimationCurveUserInfoKey] integerValue];
[UIView animateWithDuration:duration delay:0 options:(animationCurve << 16) animations:^{
self.tableView.contentOffset = CGPointMake(0, self.tableView.contentOffset.y - delta);
} completion:nil];
}
}
-(void) composeBarViewDidPressButton:(PHFComposeBarView *)composeBarView {
[[APIClient sharedClient] postPMToUser:self.uname text:composeBarView.text result:^(NSError *err) {
if (!err) {
NSLog(@"Success!");
[composeBarView becomeFirstResponder];
[composeBarView setText:nil animated:NO];
[self reloadChat];
}
}];
}
- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
[self reloadChat];
}
@end
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