//
//  GroupCoordinator.swift
//  Paiai_iOS
//
//  Created by ffib on 2019/1/29.
//  Copyright © 2019 yb. All rights reserved.
//

import UIKit
import PaiaiDataKit

class GroupCoordinator: Coordinator {
    
    let navigationController: UINavigationController
    let groupViewController: GroupViewController
    
    var coordinators: [CoordinatorKey: Coordinator] = [:]
    
    init(_ groupVC: GroupViewController, navigationController: UINavigationController) {
        self.groupViewController = groupVC
        self.navigationController = navigationController
        
        groupViewController.viewModel.delegate = self
        
    }
}

extension GroupCoordinator: GroupViewModelDelegate {
    func navigateToGroupDetail(_ item: GroupItem) {
        let coordinator = GroupDetailCoordinator(makeGroupDetailViewController(item), navigationController: navigationController)
        coordinators[.groupDetail] = coordinator
        
        navigationController.pushViewController(coordinator.groupDetailViewController)
    }
    
    func didSelect(_ items: [PhotoItem], currIndex: Int) {
        let ctl = UIStoryboard.photoDetail.instantiateController(PhotoDetailViewController.self)
        let viewModel = PhotoDetailViewModel(item: items[currIndex])
        viewModel.isHiddenEnterGroupBtn.accept(true)
        let coordinator = PhotoDetailCoordinator(ctl, nav: navigationController,
                                                 viewModel: viewModel,
                                                 listViewModel: PhotoDetailListViewModel(items: items, currIndex: currIndex))
        coordinators[.photoDetail] = coordinator
        coordinator.start()
        navigationController.pushViewController(coordinator.photoDetailViewController)
    }
}

fileprivate extension GroupCoordinator {
    func makeGroupDetailViewController(_ item: GroupItem) -> GroupDetailViewController
    {
        let vc = UIStoryboard.groupDetail.instantiateController(GroupDetailViewController.self)
        vc.viewModel = GroupDetailViewModel(item: item)
        
        return vc
    }
}

extension UIStoryboard {
    static var group: UIStoryboard {
        return UIStoryboard(name: "Group", bundle: Bundle(identifier: "com.Paiai-iOS"))
    }
}