MessagesViewController.swift

//
//  MessagesViewController.swift
//  MessagesExtension
//
//  Created by Thang Le Tan on 10/24/16.
//  Copyright © 2016 Thang Le Tan. All rights reserved.
//

import UIKit
import Messages
import SpriteKit
import GameplayKit

class MessagesViewController: MSMessagesAppViewController {
    
    override func viewDidLoad() {
        super.viewDidLoad()
       
    }
    
   
    @IBAction func playTapped(_ sender: AnyObject) {
        requestPresentationStyle(.expanded)
    }
    
    
    // MARK: - Conversation Handling
    
    override func willBecomeActive(with conversation: MSConversation) {
        if presentationStyle == .expanded {
            displayGameController(conversation: conversation, identifier: "CaroGame")
        }
    }
    
    func displayGameController(conversation: MSConversation?, identifier: String) {
        guard let vc = storyboard?.instantiateViewController(withIdentifier: identifier) as? GameViewController else {
            return
        }
        
        vc.load(message: conversation?.selectedMessage)
        vc.delegate = self
        
        addChildViewController(vc)
        // make child vc fill our view
        vc.view.frame = view.bounds
        vc.view.translatesAutoresizingMaskIntoConstraints = false
        view.addSubview(vc.view)
        
        vc.view.leftAnchor.constraint(equalTo: view.leftAnchor).isActive = true
        vc.view.rightAnchor.constraint(equalTo: view.rightAnchor).isActive = true
        vc.view.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
        vc.view.bottomAnchor.constraint(equalTo: view.bottomAnchor).isActive = true
        
        //tell the child it has moved to a new parent controller
        vc.didMove(toParentViewController: self)
        
    }
    
   
    func createMessage(rowsString: String, player: Int, row: Int, col: Int) {
        // return the extension to compact mode
        requestPresentationStyle(.compact)
        
        //make sure we have a conversation to work with
        guard let conversation = activeConversation else { return }
        
        var component = URLComponents()
        var items = [URLQueryItem]()
            
        var item = URLQueryItem(name: "rows", value: rowsString)
        items.append(item)
        
        item = URLQueryItem(name: "player", value: String(player))
        items.append(item)
        
        item = URLQueryItem(name: "row", value: String(row))
        items.append(item)
        
        item = URLQueryItem(name: "col", value: String(col))
        items.append(item)
            
            
            
        component.queryItems = items
        
        //use existing session or create new one
        let session = conversation.selectedMessage?.session ?? MSSession()
        
        //create new message from session and url
        let message = MSMessage(session: session)
        message.url = component.url
        
        //create a blank, default message layout
        let layout = MSMessageTemplateLayout()
        message.layout = layout
        
        conversation.insert(message) { (error) in
            if let error = error {
                print("There was an error inserting message into conversation: \(error)")
            }
        }
        
    }
    override func didResignActive(with conversation: MSConversation) {
        // Called when the extension is about to move from the active to inactive state.
        // This will happen when the user dissmises the extension, changes to a different
        // conversation or quits Messages.
        
        // Use this method to release shared resources, save user data, invalidate timers,
        // and store enough state information to restore your extension to its current state
        // in case it is terminated later.
    }
   
    override func didReceive(_ message: MSMessage, conversation: MSConversation) {
        // Called when a message arrives that was generated by another instance of this
        // extension on a remote device.
        
        // Use this method to trigger UI updates in response to the message.
    }
    
    override func didStartSending(_ message: MSMessage, conversation: MSConversation) {
        // Called when the user taps the send button.
    }
    
    override func didCancelSending(_ message: MSMessage, conversation: MSConversation) {
        // Called when the user deletes the message without sending it.
    
        // Use this to clean up state related to the deleted message.
    }
    
    override func willTransition(to presentationStyle: MSMessagesAppPresentationStyle) {
        for child in childViewControllers {
            child.willMove(toParentViewController: nil)
            child.view.removeFromSuperview()
            child.removeFromParentViewController()
            
        }
        
        if presentationStyle == .expanded {
            displayGameController(conversation: activeConversation, identifier: "CaroGame")
        }
    }
    
    override func didTransition(to presentationStyle: MSMessagesAppPresentationStyle) {
        // Called after the extension transitions to a new presentation style.
    
        // Use this method to finalize any behaviors associated with the change in presentation style.
    }

}