//
//  Route.swift
//  PaiAi
//
//  Created by FFIB on 2017/9/1.
//  Copyright © 2017年 yb. All rights reserved.
//

import UIKit

enum NavigationMode {
    case push
    case present
}

struct RouteModel {
    var ctl: UIViewController.Type
    var storyboard: (name: String, identifier: String)?
}

struct Route {
    var share: Route {
        return Route()
    }
    init() { }
    var routeScheme = [String: RouteModel]()
    mutating func register(url: String, model: RouteModel) {
        routeScheme[url] = model
    }
    mutating func remove(url: String) {
        routeScheme.removeValue(forKey: url)
    }
    mutating func removeAll() {
        routeScheme.removeAll()
    }

    func canOpen(url: String) -> Bool {
        return routeScheme[url] != nil
    }

    func open(url: String, mode: NavigationMode) {
        guard let model = routeScheme[url], let visibleController = UIApplication.shared.keyWindow?.rootViewController else {
            return
        }
        var ctl: UIViewController {
            if let storyboard = model.storyboard {
                return UIStoryboard(name: storyboard.name, bundle: nil).instantiateViewController(withIdentifier: storyboard.identifier)
            } else {
                return model.ctl.init()
            }
        }
        switch mode {
        case .present:
            visibleController.present(ctl, animated: true, completion: nil)
        case .push:
            visibleController.show(ctl, sender: nil)
        }
    }
}