//
//  NotificationsBellModulePresenter.swift
//  PrivadoVPN
//
//  Created by Zhandos Bolatbekov on 12.01.2021.
//  Copyright © 2021 Privado LLC. All rights reserved.
//

import Foundation

class NotificationsBellModulePresenter: NotificationsBellModuleOutput {
    
    var serversModuleOutput: ServersModuleOutput?
    weak var viewInput: NotificationsBellViewInput?
    
    init(session: Session, output: ServersModuleOutput?) {
        self.serversModuleOutput = output
        
        SerenityService.shared.localNotificationsEmitter.addReaction { [weak self] notifications -> ShouldContinueReceiveNotifications in
            
            let notifications = NotificationsFilter.shared.handleEmpty(of: notifications)
            
            DispatchQueue.main.async { [weak self] in
                self?.viewInput?.showBadge(!notifications.isEmpty)
            }
            return self.isExist
        }
        
        session.vpnConnectionStateEmitter.addReaction { [weak self] state, _ -> ShouldContinueReceiveNotifications in
            
            DispatchQueue.main.async { [weak self] in
                self?.viewInput?.set(highlighted: state == .connected)
            }
            return self.isExist
        }
    }
    
    func openNotificationsList() {
        self.viewInput?.showBadge(false)
        self.serversModuleOutput?.navigate(to: .notifications)
        LocalNotificationsManager.shared().resetAppBadgeCount()
    }
    
    func viewIsReady() {
        if VPNConnectionState(rawValue: UserSettings.shared.lastConnectionState) == .connected {
            self.viewInput?.set(highlighted: true)
        }
    }
}