//
//  ContainerViewController.swift
//  librx
//
//  Created by Yunlong Zheng on 15/10/12.
//  Copyright © 2015年 librx. All rights reserved.
//

import UIKit

class ContainerViewController: UIPageViewController {

    var isMe:Bool = true
    var userId:Int?
    
    lazy var _controllers: [UIViewController] = {
        
        let myPostStoriesTableViewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoriesTableViewController") as! StorysTableViewController
        let faviroteProfileTableViewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoriesTableViewController") as! StorysTableViewController
        let likeProfileTableViewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoriesTableViewController") as! StorysTableViewController
        let staticProfileTableViewController = self.storyboard?.instantiateViewControllerWithIdentifier("GraphsUIViewController") as! GraphsUIViewController
        
        
        if self.isMe {
            likeProfileTableViewController.postSection = .Liked
            myPostStoriesTableViewController.postSection = .MyPostTimeLine
            faviroteProfileTableViewController.postSection = .BookMark
            staticProfileTableViewController.userId = LocalStore.accessUserId()!
        } else {
            myPostStoriesTableViewController.postSection = .UserPosts(userId: self.userId!)
            likeProfileTableViewController.postSection = .UserLiked(userId: self.userId!)
            faviroteProfileTableViewController.postSection = .UserBookMark(userId: self.userId!)
            staticProfileTableViewController.userId = self.userId!
        }
        
        return [myPostStoriesTableViewController, likeProfileTableViewController, faviroteProfileTableViewController, staticProfileTableViewController]
        
    }()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        turnToPage(0)
    }
    
    func turnToPage(index: Int) {
        let controller = _controllers[index]
        let direction = UIPageViewControllerNavigationDirection.Forward
        
        setViewControllers([controller],
            direction: direction,
            animated: false) { (completion) -> Void in
                
        }
    }

    
    func configureForDisplayingViewController(controller: UITableViewController) {
        
    }
    
}

extension ContainerViewController : UIPageViewControllerDataSource {
    
    func pageViewController(pageViewController: UIPageViewController, viewControllerBeforeViewController viewController: UIViewController) -> UIViewController? {
        
        let index = (_controllers as NSArray).indexOfObject(viewController)
        
        if index > 0 {
            return _controllers[index - 1]
        }
        
        return nil
    }
    
    func pageViewController(pageViewController: UIPageViewController, viewControllerAfterViewController viewController: UIViewController) -> UIViewController? {
        
        let index = (_controllers as NSArray).indexOfObject(viewController)
        
        if index < _controllers.count - 1 {
            return _controllers[index + 1]
        }
        
        return nil
    }
    
}

extension ContainerViewController : UIPageViewControllerDelegate {

    func pageViewController(pageViewController: UIPageViewController, willTransitionToViewControllers pendingViewControllers: [UIViewController]) {
        
    }
    
}