//
//  Coordinator.swift
//  PaiAi
//
//  Created by ffib on 2018/12/6.
//  Copyright © 2018 yb. All rights reserved.
//

import Foundation
import PaiaiDataKit
import PaiaiUIKit

let kScreenWidth = UIScreen.main.bounds.size.width
let kScreenHeight = UIScreen.main.bounds.size.height

protocol Coordinator {}

public final class AppCoordinator {
    
    fileprivate enum CoordinatorKey: String {
        case home = "home"
        case message = "message"
        case mine = "mine"
    }
    
    var shareUserInfoViewModel = UserInfoViewModel()
    var containerViewController: ContainerViewController
    
    fileprivate var coordinators = [CoordinatorKey: Coordinator]()
    
    public init(_ containerVC: ContainerViewController) {
        containerViewController = containerVC
        containerViewController.delegate = self
        containerViewController.userInfo = shareUserInfoViewModel
        
        self.containerViewController.loadViewIfNeeded()
        
        
        let homeVC = makeHomeViewController()
        let messageVC = makeMessageViewController()
        containerViewController.pageItems = [PageItem(title: "首页",
                                                      viewController: homeVC),
                                             PageItem(title: "消息",
                                                      viewController: messageVC)]
        
        let homeCoordinator = HomeCoordinator(homeVC, userInfoViewModel: shareUserInfoViewModel)
        let messageCoordinator = MessageCoordinator(messageVC, userInfoViewModel: shareUserInfoViewModel)
        
        coordinators[.home] = homeCoordinator
        coordinators[.message] = messageCoordinator
    }
    func start() {
        
    }
}

extension AppCoordinator: ContainerViewControllerDelegate {
    func presentLogin() {
        let loginVC = makeLoginViewController()
        containerViewController.navigationController?.addFullScreen(childViewController: loginVC)
    }
    
    func presentMine() {
        let mineCoordinator = makeMineCoordinator()
        coordinators[.mine] = mineCoordinator
        
        containerViewController.presentController(mineCoordinator.mineViewController)
    }
}

fileprivate extension AppCoordinator {
    func makeMineCoordinator() -> MineCoordinator {
        let mineVC = makeMineViewController()
        mineVC.userInfoViewModel = shareUserInfoViewModel
        let mineCoordinator = MineCoordinator(mineVC, containerViewController: containerViewController)
        
        return mineCoordinator
    }
}

fileprivate extension AppCoordinator {
    func makeHomeViewController() -> HomeViewController {
        let vc = UIStoryboard.main.instantiateController(HomeViewController.self)
        vc.viewModel = HomeViewModel()
        vc.userInfoViewModel = shareUserInfoViewModel
        return vc
    }
    
    func makeMessageViewController() -> MessageViewController {
        let vc = UIStoryboard.message.instantiateController(MessageViewController.self)
        vc.viewModel = MessageViewModel()
        vc.userInfoViewModel = shareUserInfoViewModel
        return vc
    }
    
    func makeMineViewController() -> MineViewController {
        let vc = UIStoryboard.mine.instantiateController(MineViewController.self)
        return vc
    }
    
    func makeLoginViewController() -> LoginViewController {
        let vc = UIStoryboard.main.instantiateController(LoginViewController.self)
        vc.userInfoViewModel = shareUserInfoViewModel
        return vc
    }
}