eqn.ios/Sources/Earthquake Network/Controllers/Settings/SettingsRealTimeAlertsViewController.m

//
//  AletaSismiTableViewController.m
//  Earthquake Network
//
//  Refactored by Andrea Busi 25/08/2020.
//  Copyright © 2020 Earthquake Network. All rights reserved.
//

#import "SettingsRealTimeAlertsViewController.h"
#import "EQNAllertaSismica.h"
@import UserNotifications;

@interface SettingsRealTimeAlertsViewController () <UITextFieldDelegate>

@property (nonatomic, strong) NSArray<SettingItem *> *settings;

@property (nonatomic, strong) NSDateFormatter *dateFormatter;

@property (nonatomic, assign) BOOL notificationEnabled;
@property (nonatomic, assign) BOOL criticalAlertsEnabled;
@end

@implementation SettingsRealTimeAlertsViewController

typedef NS_ENUM(NSInteger, RowIdentifier) {
    RowIdentifierAbilitaNotifiche = 0,
    RowIdentifierAbilitaCriticalAlerts
};

#pragma mark - Accessories

- (NSDateFormatter *)dateFormatter
{
    if (!_dateFormatter) {
        _dateFormatter = [[NSDateFormatter alloc] init];
        [_dateFormatter setDateFormat:@"HH:mm"];
    }
    return _dateFormatter;
}

#pragma mark - View Lifecycle

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    [self setupUI];
        
    self.settings = @[
        [[SettingItem alloc] initWithType:SettingTypeEnable title:NSLocalizedString(@"options_notification_enable_alarm", @"")],
        [[SettingItem alloc] initWithType:SettingTypeEnable title:NSLocalizedString(@"critical_alerts_setting", @"")]
    ];
    
    [self loadDataSource];
    [self.tableView reloadData];
}

#pragma mark - Private

- (void)setupUI
{
    self.navigationItem.largeTitleDisplayMode = UINavigationItemLargeTitleDisplayModeNever;
    
    self.tableView.estimatedRowHeight = 200.0;
    self.tableView.rowHeight = UITableViewAutomaticDimension;
    [self.tableView registerClass:[SettingSectionHeaderView class] forHeaderFooterViewReuseIdentifier:SettingSectionHeaderView.Identifier];
    [self.tableView registerClass:[SettingEnableTableViewCell class] forCellReuseIdentifier:SettingEnableTableViewCell.Identifier];
    [self.tableView registerClass:[SettingSliderTableViewCell class] forCellReuseIdentifier:SettingSliderTableViewCell.Identifier];
    [self.tableView registerClass:[SettingMultivaluesTableViewCell class] forCellReuseIdentifier:SettingMultivaluesTableViewCell.Identifier];
    [self.tableView registerClass:[SettingSegmentedTableViewCell class] forCellReuseIdentifier:SettingSegmentedTableViewCell.Identifier];
    [self.tableView registerClass:[SettingDateTableViewCell class] forCellReuseIdentifier:SettingDateTableViewCell.Identifier];
}

- (void)loadDataSource
{
    self.notificationEnabled = [EQNAllertaSismica sharedInstance].isAbilitato;
    self.criticalAlertsEnabled = [EQNAllertaSismica sharedInstance].isCriticalAlertsEnabled;

    [[EQNAllertaSismica sharedInstance] saveUserInfo];
}


#pragma mark - Table view data source

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

- (UIView *)tableView:(UITableView *)tableView viewForHeaderInSection:(NSInteger)section
{
    SettingSectionHeaderView *headerView = [tableView dequeueReusableHeaderFooterViewWithIdentifier:SettingSectionHeaderView.Identifier];
    headerView.titleLabel.text = NSLocalizedString(@"options_alarms", @"");
    return headerView;
}

- (CGFloat)tableView:(UITableView *)tableView heightForHeaderInSection:(NSInteger)section
{
    return SettingSectionHeaderView.Height;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    SettingItem *setting = self.settings[indexPath.row];

    if (setting.type == SettingTypeEnable) {
        SettingEnableTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SettingEnableTableViewCell.Identifier forIndexPath:indexPath];
        cell.titleLabel.text = setting.displayTitle;
        cell.descriptionLabel.text = setting.subtitle;
        
        if (indexPath.row == RowIdentifierAbilitaNotifiche) {
            cell.toggleSwitch.on = self.notificationEnabled;
            cell.valueChanged = ^(BOOL enabled) {
                self.notificationEnabled = enabled;
                [EQNAllertaSismica sharedInstance].isAbilitato = self.notificationEnabled;
                [[EQNAllertaSismica sharedInstance] saveUserInfo];
                [self.tableView reloadData];
            };
        } else if (indexPath.row == RowIdentifierAbilitaCriticalAlerts) {
            cell.toggleSwitch.on = self.criticalAlertsEnabled;
            cell.valueChanged = ^(BOOL enabled) {
                if (enabled) {
                    [self askForCriticalAlertsPermission];
                }
                
                self.criticalAlertsEnabled = enabled;
                [EQNAllertaSismica sharedInstance].isCriticalAlertsEnabled = self.criticalAlertsEnabled;
                [[EQNAllertaSismica sharedInstance] saveUserInfo];
                [self.tableView reloadData];
            };
        }
        
        return cell;
    } else if (setting.type == SettingTypeSegmented) {
        SettingSegmentedTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SettingSegmentedTableViewCell.Identifier forIndexPath:indexPath];
        cell.titleLabel.text = setting.displayTitle;
        return cell;
    } else if (setting.type == SettingTypeSlider) {
        SettingSliderTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:SettingSliderTableViewCell.Identifier forIndexPath:indexPath];
        cell.titleLabel.text = setting.displayTitle;
        return cell;
    }
    
    return nil;
}

#pragma mark - Private

- (void)updateSismicToNotify:(EQNGenericValue *)seismic
{
    [EQNAllertaSismica sharedInstance].sismiDaNotificare = seismic.value;
    [[EQNAllertaSismica sharedInstance] saveUserInfo];
    
    [self loadDataSource];
}

- (void)askForCriticalAlertsPermission
{
    UNAuthorizationOptions authOptions = UNAuthorizationOptionCriticalAlert;
    [[UNUserNotificationCenter currentNotificationCenter] requestAuthorizationWithOptions:authOptions completionHandler:^(BOOL granted, NSError *error) {
        // nope
    }];
}

@end