session-ios/Signal/src/view controllers/ShowGroupMembersViewController.m

//
//  ShowGroupMembersViewController.m
//  Signal
//
//  Created by Dylan Bourgeois on 13/11/14.
//  Copyright (c) 2014 Open Whisper Systems. All rights reserved.
//

#import "ShowGroupMembersViewController.h"


#import "SignalsViewController.h"

#import "ContactsManager.h"
#import "GroupContactsResult.h"
#import "Environment.h"

#import "UIUtil.h"

#import <AddressBookUI/AddressBookUI.h>

static NSString* const kUnwindToMessagesViewSegue = @"UnwindToMessagesViewSegue";

@interface ShowGroupMembersViewController ()

@property GroupContactsResult *groupContacts;
@property TSGroupThread* thread;

@end

@implementation ShowGroupMembersViewController

- (void)configWithThread:(TSGroupThread *)gThread{
    _thread = gThread;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    [self.navigationController.navigationBar setTranslucent:NO];

    self.title = _thread.groupModel.groupName;
    
    [self initializeTableView];
    
    self.groupContacts = [[GroupContactsResult alloc] initWithMembersId:self.thread.groupModel.groupMemberIds without:nil];
    
    [[Environment.getCurrent contactsManager].getObservableContacts watchLatestValue:^(id latestValue) {
        self.groupContacts = [[GroupContactsResult alloc] initWithMembersId:self.thread.groupModel.groupMemberIds without:nil];
        [self.tableView reloadData];
    } onThread:[NSThread mainThread] untilCancelled:nil];
}

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

#pragma mark - Initializers


-(void)initializeTableView
{
    self.tableView.tableFooterView = [[UIView alloc]initWithFrame:CGRectZero];
}

#pragma mark - Actions

#pragma mark - Table view data source

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return (NSInteger)[self.groupContacts numberOfMembers]+1;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"SearchCell"];
    
    if (cell == nil) {
        
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier: indexPath.row == 0 ? @"HeaderCell" : @"GroupSearchCell"];
    }
    if (indexPath.row > 0) {
        NSIndexPath *relativeIndexPath = [NSIndexPath indexPathForRow:indexPath.row-1 inSection:indexPath.section];
        if ([self.groupContacts isContactAtIndexPath:relativeIndexPath]) {
            Contact* contact = [self contactForIndexPath:relativeIndexPath];
            cell.textLabel.attributedText = [self attributedStringForContact:contact inCell:cell];
        } else{
            cell.textLabel.text = [self.groupContacts identifierForIndexPath:relativeIndexPath];
        }
    } else {
        cell.textLabel.text = @"Group Members:";
        cell.textLabel.textColor = [UIColor lightGrayColor];
        cell.selectionStyle = UITableViewCellSelectionStyleNone;
    }
    
    tableView.tableFooterView = [[UIView alloc] initWithFrame:CGRectZero];
    
    return cell;
}


-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSIndexPath *relativeIndexPath = [NSIndexPath indexPathForRow:indexPath.row-1 inSection:indexPath.section];
    
    if(indexPath.row >0 && [self.groupContacts isContactAtIndexPath:relativeIndexPath]) {
        ABPersonViewController *view = [[ABPersonViewController alloc] init];
        
        Contact *contact = [self.groupContacts contactForIndexPath:relativeIndexPath];
        ABAddressBookRef addressBookRef = ABAddressBookCreateWithOptions(NULL, nil);
        view.displayedPerson = ABAddressBookGetPersonWithRecordID(addressBookRef, contact.recordID); // Assume person is already defined.
        view.allowsActions   = NO;
        view.allowsEditing   = YES;
        
        [self.navigationController pushViewController:view animated:YES];
    } else {
        ABUnknownPersonViewController *view = [[ABUnknownPersonViewController alloc] init];
    
        ABRecordRef aContact = ABPersonCreate();
        CFErrorRef anError = NULL;
        
        ABMultiValueRef phone = ABMultiValueCreateMutable(kABMultiStringPropertyType);
        ABMultiValueAddValueAndLabel(phone, (__bridge CFTypeRef)[self.tableView cellForRowAtIndexPath:indexPath].textLabel.text, kABPersonPhoneMainLabel, NULL);
        
        ABRecordSetValue(aContact, kABPersonPhoneProperty, phone, &anError);
        CFRelease(phone);
        
        if (!anError && aContact) {
            view.displayedPerson = aContact; // Assume person is already defined.
            view.allowsAddingToAddressBook = YES;
            [self.navigationController pushViewController:view animated:YES];
        }
    }
    
    [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

-(Contact*)contactForIndexPath:(NSIndexPath*)indexPath
{
    Contact *contact = [self.groupContacts contactForIndexPath:indexPath];
    return contact;
}

#pragma mark - Cell Utility

- (NSAttributedString *)attributedStringForContact:(Contact *)contact inCell:(UITableViewCell*)cell {
    NSMutableAttributedString *fullNameAttributedString = [[NSMutableAttributedString alloc] initWithString:contact.fullName];
    
    UIFont *firstNameFont;
    UIFont *lastNameFont;
    
    if (ABPersonGetSortOrdering() == kABPersonCompositeNameFormatFirstNameFirst) {
        firstNameFont = [UIFont ows_mediumFontWithSize:cell.textLabel.font.pointSize];
        lastNameFont  = [UIFont ows_regularFontWithSize:cell.textLabel.font.pointSize];
    } else{
        firstNameFont = [UIFont ows_regularFontWithSize:cell.textLabel.font.pointSize];
        lastNameFont  = [UIFont ows_mediumFontWithSize:cell.textLabel.font.pointSize];
    }
    [fullNameAttributedString addAttribute:NSFontAttributeName value:firstNameFont range:NSMakeRange(0, contact.firstName.length)];
    [fullNameAttributedString addAttribute:NSFontAttributeName value:lastNameFont range:NSMakeRange(contact.firstName.length + 1, contact.lastName.length)];
    
    [fullNameAttributedString addAttribute:NSForegroundColorAttributeName value:[UIColor blackColor] range:NSMakeRange(0, contact.fullName.length)];
    
    if (ABPersonGetSortOrdering() == kABPersonCompositeNameFormatFirstNameFirst) {
        [fullNameAttributedString addAttribute:NSForegroundColorAttributeName value:[UIColor ows_darkGrayColor] range:NSMakeRange(contact.firstName.length + 1, contact.lastName.length)];
    }
    else {
        [fullNameAttributedString addAttribute:NSForegroundColorAttributeName value:[UIColor ows_darkGrayColor] range:NSMakeRange(0, contact.firstName.length)];
    }
    return fullNameAttributedString;
}

@end