//
//  ChatViewController.swift
//  Pure Rally
//
//  Created by Mohamed Farouk Chedly on 2017-10-22.
//  Copyright © 2017 Mohamed Farouk Chedly. All rights reserved.
//

import UIKit
import JSQMessagesViewController
import MobileCoreServices
import AVKit
import FirebaseDatabase
import FirebaseStorage
import FirebaseAuth

class ChatViewController: JSQMessagesViewController {

    var messages = [JSQMessage]()
    var messagesRef = DatabaseReference()
    var storageRef = StorageReference()



    override func viewDidLoad() {
        super.viewDidLoad()
        let currentUser = Auth.auth().currentUser

        self.senderId = currentUser?.uid
        self.senderDisplayName = "User"

        /*messagesRef.observeSingleEvent(of: .value, with: { (snapshot) in
           print(snapshot)
        })*/

        messagesRef = Database.database().reference().child("messages")
        storageRef = Storage.storage().reference().child("images")

        observeMessages()

        // Do any additional setup after loading the view.
    }

    func sendMedia(picture: UIImage?, video: NSURL?) {
        if let picture = picture {
            print(picture)
            print("*****")
            let filePath = "\(Auth.auth().currentUser!.uid)/\(NSDate.timeIntervalSinceReferenceDate)"
            let data = UIImageJPEGRepresentation(picture, 1)
            let metaData = StorageMetadata()
            metaData.contentType = "image/jpeg"

            storageRef.child(filePath).putData(data!, metadata: metaData) { (metaData,error ) in
                if error != nil {
                    print("ettrrror")
                    print(error?.localizedDescription)
                    return
                }
                let fileUrl = metaData!.downloadURLs![0].absoluteString

                let newMessage = self.messagesRef.childByAutoId()
                let messageData = ["fileUrl": fileUrl, "senderId": self.senderId, "senderDisplayName": self.senderDisplayName, "mediaType": "PHOTO"]
                newMessage.setValue(messageData)


            }
            print("*****")
        } else if let video = video {
            let filePath = "\(Auth.auth().currentUser!.uid)/\(NSDate.timeIntervalSinceReferenceDate)"
            let data = NSData(contentsOf: video as URL)
            let metaData = StorageMetadata()
            metaData.contentType = "video/mp4"

            storageRef.child(filePath).putData(data! as Data, metadata: metaData) { (metaData,error ) in
                if error != nil {
                    print("ettrrror")
                    print(error?.localizedDescription)
                    return
                }
                let fileUrl = metaData!.downloadURLs![0].absoluteString

                let newMessage = self.messagesRef.childByAutoId()
                let messageData = ["fileUrl": fileUrl, "senderId": self.senderId, "senderDisplayName": self.senderDisplayName, "mediaType": "VIDEO"]
                newMessage.setValue(messageData)


            }
        }


    }

    func observeMessages(){
        messagesRef.observe(DataEventType.childAdded) { (snapshot) in
            if let dict = snapshot.value as? [String: AnyObject] {
                let mediaType = dict["mediaType"] as! String
                let senderId = dict["senderId"] as! String
                let senderDisplayName = dict["senderDisplayName"] as! String

                if mediaType == "TEXT" {
                    let text = dict["text"] as! String
                    self.messages.append(JSQMessage(senderId: senderId, displayName: senderDisplayName, text: text))

                } else if mediaType == "PHOTO" {
                    print("founde photo")

                    let fileUrl = dict["fileUrl"] as! String
                    print(fileUrl)
                    let data = NSData(contentsOf: URL(string: fileUrl)!)
                    print(data)
                    let image = UIImage(data: data as! Data)
                    let photo = JSQPhotoMediaItem(image: image)

                    if self.senderId == senderId {
                        photo?.appliesMediaViewMaskAsOutgoing = true
                    } else {
                        photo?.appliesMediaViewMaskAsOutgoing = false

                    }
                    self.messages.append(JSQMessage(senderId: self.senderId, displayName: self.senderDisplayName, media: photo))
                    print("self.senderID")
                    print(self.senderId)
                    print("senderID")
                    print(senderId)

                } else if mediaType == "VIDEO" {
                      let fileUrlString = dict["fileUrl"] as! String
                    let fileUrl = NSURL(string: fileUrlString)
                    let videoItem = JSQVideoMediaItem(fileURL: fileUrl as! URL, isReadyToPlay: true)

                    if self.senderId == senderId {

                        videoItem?.appliesMediaViewMaskAsOutgoing = true
                    } else {
                        videoItem?.appliesMediaViewMaskAsOutgoing = false
                    }

                      self.messages.append(JSQMessage(senderId: self.senderId, displayName: self.senderDisplayName, media: videoItem))

                }

        self.collectionView.reloadData()
            }
        }
    }

    override func didPressSend(_ button: UIButton!, withMessageText text: String!, senderId: String!, senderDisplayName: String!, date: Date!) {

        print("didPressSend")
        print(text)
         /*
        messages.append(JSQMessage(senderId: senderId!, displayName: senderDisplayName, text: text))
        collectionView.reloadData()
        print(messages)*/

        let newMessage = messagesRef.childByAutoId()
        let messageData = ["text": text, "senderId": senderId, "senderDisplayName": senderDisplayName, "mediaType": "TEXT"]
        newMessage.setValue(messageData)
        self.finishSendingMessage()

        //self.scrollToBottom(animated: true) not working
        //let indexPath = IndexPath(row: , section: 0)
        //self.scroll(to: indexPath, animated: true)
        /*
        if self.collectionView.contentSize.height > self.collectionView.frame.height {
            self.collectionView.setContentOffset(
                CGPoint(x: 0, y: self.collectionView.contentSize.height
                    - self.collectionView.frame.height + self.inputToolbar.bounds.height),
                animated: true)
        }*/

    }



    override func didPressAccessoryButton(_ sender: UIButton!) {
        print("didPressAccessoryButton")
        let sheet = UIAlertController(title: "Media Messages", message: "Please select a media", preferredStyle: UIAlertControllerStyle.actionSheet)

        let cancel = UIAlertAction(title: "Cancel", style: UIAlertActionStyle.cancel) { (alert:UIAlertAction) in
        }

        let photoLibrary = UIAlertAction(title: "Photo Library", style: UIAlertActionStyle.default) { (alert: UIAlertAction) in
            self.getMediaFrom(type: kUTTypeImage)
        }

        let videoLibrary = UIAlertAction(title: "Video Library", style: UIAlertActionStyle.default) { (alert: UIAlertAction) in
            self.getMediaFrom(type: kUTTypeMovie)
        }

        sheet.addAction(photoLibrary)
        sheet.addAction(videoLibrary)
        sheet.addAction(cancel)

        self.present(sheet, animated: true, completion: nil)

        // let imagePicker = UIImagePickerController()
        // imagePicker.delegate = self
        // self.present(imagePicker, animated: true, completion: nil)
    }


    func getMediaFrom(type: CFString){
        let mediaPicker = UIImagePickerController()
        mediaPicker.delegate = self
        mediaPicker.mediaTypes = [type as String]
        self.present(mediaPicker, animated: true, completion: nil)
    }

    override func collectionView(_ collectionView: UICollectionView, numberOfItemsInSection section: Int) -> Int {
        return messages.count
    }

    override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
        let cell = super.collectionView(collectionView, cellForItemAt: indexPath) as! JSQMessagesCollectionViewCell
        return cell
    }

    override func collectionView(_ collectionView: JSQMessagesCollectionView!, avatarImageDataForItemAt indexPath: IndexPath!) -> JSQMessageAvatarImageDataSource! {
        return nil
    }
    override func collectionView(_ collectionView: JSQMessagesCollectionView!, messageDataForItemAt indexPath: IndexPath!) -> JSQMessageData! {
        return messages[indexPath.item]
    }

    override func collectionView(_ collectionView: JSQMessagesCollectionView!, messageBubbleImageDataForItemAt indexPath: IndexPath!) -> JSQMessageBubbleImageDataSource! {
        let message = messages[indexPath.item]
        let bubbleFactory = JSQMessagesBubbleImageFactory()
        print("aaaaazzeazeazeazeazeazeazeaz");

        if message.senderId == self.senderId {
            return bubbleFactory?.outgoingMessagesBubbleImage(with: UIColor.black)
        } else {

            return bubbleFactory?.incomingMessagesBubbleImage(with: UIColor.purple)
        }

    }

    override func collectionView(_ collectionView: JSQMessagesCollectionView!, didTapMessageBubbleAt indexPath: IndexPath!) {
        print("didTapMessageBubbleAt \(indexPath.item)")
        let message = messages[indexPath.item]
        if message.isMediaMessage {
            if let mediaItem = message.media as? JSQVideoMediaItem {
                let player = AVPlayer(url: mediaItem.fileURL)
                let playerViewController = AVPlayerViewController()
                playerViewController.player = player
                self.present(playerViewController, animated: true, completion: nil)
            }
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}


extension ChatViewController: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [String : Any]) {
        print("Did finish picking media file")
        print(info)
        if let picture = info[UIImagePickerControllerOriginalImage] as? UIImage {
            let photo = JSQPhotoMediaItem(image: picture)
            messages.append(JSQMessage(senderId: senderId, senderDisplayName: senderDisplayName, date: Date(), media: photo))
            sendMedia(picture: picture, video: nil)
        } else if let video = info[UIImagePickerControllerMediaURL] as? NSURL {
            let videoMedia = JSQVideoMediaItem(fileURL: video as URL!, isReadyToPlay: true)
            messages.append(JSQMessage(senderId: senderId, senderDisplayName: senderDisplayName, date: Date(), media: videoMedia))
            sendMedia(picture: nil, video: video)
        }

        self.dismiss(animated: true, completion: nil)
        collectionView.reloadData()

    }
}


#####
###Login
####

//
//  LogInViewController.swift
//  Pure Rally
//
//  Created by Mohamed Farouk Chedly on 2017-10-22.
//  Copyright © 2017 Mohamed Farouk Chedly. All rights reserved.
//

import UIKit
import FirebaseAuth
import SVProgressHUD

class LogInViewController: UIViewController {

    @IBOutlet weak var emailTextField: UITextField!
    @IBOutlet weak var passwordTextField: UITextField!
    @IBOutlet weak var logInButtton: UIButton!

    override func viewDidLoad() {
        super.viewDidLoad()
        logInButtton.isEnabled = false
        handleTextFields()
        // Do any additional setup after loading the view.
    }

    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        // refactor add loading auth adn redirecting
        Auth.auth().addStateDidChangeListener { (auth, user) in
            if user != nil {
                print("already auth \(auth)")
                // redirect user to home (main chat + future feature maps)
                // Create a main stroyboard instance
                let storyboard = UIStoryboard(name: "Main", bundle: nil)

                // From main storyboard instaniate a navigation controller
                let navigationVC = storyboard.instantiateViewController(withIdentifier: "NavigationVC") as! UINavigationController

                // Get the app delegate
                let appDelegate = UIApplication.shared.delegate as! AppDelegate

                // Set navigation controller as root view controller
                appDelegate.window?.rootViewController = navigationVC
            } else {
                print("not auth")
            }
        }
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func logInDidTapped(_ sender: Any) {
        print("Log In tapped")

        // TODO: Check email && password fields

        //
        SVProgressHUD.show(withStatus: "Loading...")
        // Firebase auth

        Auth.auth().signIn(withEmail: emailTextField.text!, password: passwordTextField.text!) { (user, error) in
            if (error != nil) {
                // Error
                print(error!.localizedDescription)
                return
            }
            // Sign in successfully
            print("User Id: \(user!.uid)")

            // Create a main stroyboard instance
            let storyboard = UIStoryboard(name: "Main", bundle: nil)

            // From main storyboard instaniate a navigation controller
            let navigationVC = storyboard.instantiateViewController(withIdentifier: "NavigationVC") as! UINavigationController

            // Get the app delegate
            let appDelegate = UIApplication.shared.delegate as! AppDelegate

            // Set navigation controller as root view controller
            appDelegate.window?.rootViewController = navigationVC


        }

    }

    func handleTextFields() {
        emailTextField.addTarget(self, action: #selector(LogInViewController.textFieldsDidChange), for: UIControlEvents.editingChanged)
        passwordTextField.addTarget(self, action: #selector(LogInViewController.textFieldsDidChange), for: UIControlEvents.editingChanged)
    }

    @objc func textFieldsDidChange() {
        guard let email = emailTextField.text, !email.isEmpty, let password = passwordTextField.text, !password.isEmpty else {
            logInButtton.setTitleColor(UIColor.red, for: UIControlState.normal)
            logInButtton.isEnabled = false
            return
        }
        logInButtton.setTitleColor(UIColor.blue, for: UIControlState.normal)
        logInButtton.isEnabled = true
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}


#####
####Home#
####
//
//  HomeViewController.swift
//  Pure Rally
//
//  Created by Mohamed Farouk Chedly on 2017-10-22.
//  Copyright © 2017 Mohamed Farouk Chedly. All rights reserved.
//

import UIKit
import FirebaseAuth

class HomeViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        // Do any additional setup after loading the view.
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

    @IBAction func logOutTapped(_ sender: Any) {
        print("Log Out tapped")


        let firebaseAuth = Auth.auth()
        do {
            try firebaseAuth.signOut()
        } catch let signOutError as NSError {
            print ("Error signing out: %@", signOutError)
        }

        // Create a main stroyboard instance
        let storyboard = UIStoryboard(name: "Main", bundle: nil)

        // From main storyboard instaniate a tab bar controller
        let mainTabBarController = storyboard.instantiateViewController(withIdentifier: "MainTabBarController") as! UITabBarController

        // Get the app delegate
        let appDelegate = UIApplication.shared.delegate as! AppDelegate

        // Set navigation controller as root view controller
        appDelegate.window?.rootViewController = mainTabBarController
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */

}