//
//  PhotoDetailCoordinator.swift
//  Paiai_iOS
//
//  Created by FFIB on 2018/12/19.
//  Copyright © 2018 FFIB. All rights reserved.
//

import UIKit
import RxSwift
import PaiaiDataKit

final class PhotoDetailCoordinator: BaseCoordinator<Void> {
    let photoDetailViewController: PhotoDetailViewController
    let shareViewModel: PhotoDetailViewModel

    init(_ viewController: PhotoDetailViewController,
         nav: UINavigationController,
         viewModel: PhotoDetailViewModel) {
        self.photoDetailViewController = viewController
        self.shareViewModel = viewModel
        photoDetailViewController.viewModel = viewModel

        super.init(navigationController: nav, viewController: viewController)
    }

    override func start() -> Observable<Void> {
        photoDetailViewController.viewModel.delegate = self
        return didCancel
    }
}

extension PhotoDetailCoordinator: PhotoDetailViewModelDelegate {
    func navigateToGroup(_ item: GroupItem, photoItems: [PhotoItem]) {
        let vc = GroupViewController.instantiate()
        vc.viewModel = GroupViewModel(groupItem: item, items: photoItems)
        let coordinator = GroupCoordinator(vc,
                                           navigationController: navigationController,
                                           navigationSource: .photoDetail)

        coordinate(to: coordinator).subscribe().disposed(by: disposeBag)
        navigationController.pushViewController(vc)
    }

    func didSelected() {
        let vc = PhotoPreviewViewController.instantiate()
        vc.viewModel = shareViewModel
        photoDetailViewController.presentController(vc)
    }
}

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