/*
Copyright 2024 New Vector Ltd.
Copyright 2015 OpenMarket Ltd

SPDX-License-Identifier: AGPL-3.0-only
Please see LICENSE in the repository root for full details.
 */

#import "MXKContactDetailsViewController.h"

#import "MXKTableViewCellWithLabelAndButton.h"

#import "NSBundle+MatrixKit.h"
#import "MXKSwiftHeader.h"

@interface MXKContactDetailsViewController ()
{
    NSArray* matrixIDs;
}

@end

@implementation MXKContactDetailsViewController

+ (UINib *)nib
{
    return [UINib nibWithNibName:NSStringFromClass([MXKContactDetailsViewController class])
                          bundle:[NSBundle bundleForClass:[MXKContactDetailsViewController class]]];
}

+ (instancetype)contactDetailsViewController
{
    return [[[self class] alloc] initWithNibName:NSStringFromClass([MXKContactDetailsViewController class])
                                          bundle:[NSBundle bundleForClass:[MXKContactDetailsViewController class]]];
}

- (void)finalizeInit
{
    [super finalizeInit];
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    // Check whether the view controller has been pushed via storyboard
    if (!_contactThumbnail)
    {
        // Instantiate view controller objects
        [[[self class] nib] instantiateWithOwner:self options:nil];
    }
    
    [self updatePictureButton:self.picturePlaceholder];
}

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onThumbnailUpdate:) name:kMXKContactThumbnailUpdateNotification object:nil];
    
    // Force refresh
    self.contact = _contact;
}

- (void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)destroy
{
    matrixIDs = nil;
    
    self.delegate = nil;
    
    [super destroy];
}

#pragma mark -

- (void)setContact:(MXKContact *)contact
{
    _contact = contact;
    
    self.contactDisplayName.text = _contact.displayName;
    
    // set the thumbnail info
    [self.contactThumbnail.imageView setContentMode: UIViewContentModeScaleAspectFill];
    [self.contactThumbnail.imageView setClipsToBounds:YES];
    
    if (_contact.thumbnail)
    {
        [self updatePictureButton:_contact.thumbnail];
    }
    else
    {
        [self updatePictureButton:self.picturePlaceholder];
    }
}

- (UIImage*)picturePlaceholder
{
    return [NSBundle mxk_imageFromMXKAssetsBundleWithName:@"default-profile"];
}

- (IBAction)onContactThumbnailPressed:(id)sender
{
    // Do nothing by default
}

#pragma mark - UITableView datasource

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    matrixIDs = _contact.matrixIdentifiers;
    return matrixIDs.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSInteger row = indexPath.row;
    
    MXKTableViewCellWithLabelAndButton *cell = [tableView dequeueReusableCellWithIdentifier:[MXKTableViewCellWithLabelAndButton defaultReuseIdentifier]];
    if (!cell)
    {
        cell = [[MXKTableViewCellWithLabelAndButton alloc] init];
    }
    
    if (row < matrixIDs.count)
    {
        cell.mxkLabel.text = [matrixIDs objectAtIndex:row];
    }
    else
    {
        // should never happen
        cell.mxkLabel.text = @"";
    }
    
    [cell.mxkButton setTitle:[VectorL10n startChat] forState:UIControlStateNormal];
    [cell.mxkButton setTitle:[VectorL10n startChat] forState:UIControlStateHighlighted];
    cell.mxkButton.tag = row;
    [cell.mxkButton addTarget:self action:@selector(startChat:) forControlEvents:UIControlEventTouchUpInside];
    
    return cell;
}

#pragma mark - Internals

- (void)updatePictureButton:(UIImage*)image
{
    [self.contactThumbnail setImage:image forState:UIControlStateNormal];
    [self.contactThumbnail setImage:image forState:UIControlStateHighlighted];
    [self.contactThumbnail setImage:image forState:UIControlStateDisabled];
}

- (void)startChat:(UIButton*)sender
{
    if (self.delegate && sender.tag < matrixIDs.count)
    {
        sender.enabled = NO;
        
        [self.delegate contactDetailsViewController:self startChatWithMatrixId:[matrixIDs objectAtIndex:sender.tag] completion:^{
            
            sender.enabled = YES;
            
        }];
    }
}

- (void)onThumbnailUpdate:(NSNotification *)notif
{
    // sanity check
    if ([notif.object isKindOfClass:[NSString class]])
    {
        NSString* contactID = notif.object;
        
        if ([contactID isEqualToString:self.contact.contactID])
        {
            if (_contact.thumbnail)
            {
                [self updatePictureButton:_contact.thumbnail];
            }
            else
            {
                [self updatePictureButton:self.picturePlaceholder];
            }
        }
    }
}

@end