//
//  EditCommentViewController.swift
//  GMERemittance
//
//  Created by FMI-12 on 1/21/18.
//  Copyright © 2018 Gobal Money Express Co. Ltd. All rights reserved.
//

import UIKit

class EditCommentViewController: UIViewController, UITextViewDelegate {
    
    @IBOutlet weak var labelInitial: UILabel!
    
    @IBOutlet weak var imageViewUserImage: UIImageView!
    
    @IBOutlet weak var textViewEditComment: UITextView!

    @IBOutlet weak var viewEdit: UIView!
    
    @IBOutlet weak var textViewEditCommentConstraint: NSLayoutConstraint!
    
    var feedIndex: Int?
    var commentIndex: Int?
    var socialfeedviewmodel: SocialFeedViewModel?
    
    var commentInputText: String?
    
    private var commentToEdit: Comment?
    
    private var activityIndicator: UIActivityIndicatorView = UIActivityIndicatorView()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        hideKeyboardWhenTappedAround()
        setUpNavBar(id: 5, title: "")

        labelInitial.isHidden = false
        labelInitial.backgroundColor = UIColor(hex: 0x2e3192)
        labelInitial.layer.cornerRadius = labelInitial.frame.height / 2
        labelInitial.text = getFirstName().prefix(1).uppercased()
        
        
        let userDpString = UserDefaults.standard.object(forKey: "com.gmeremit.dpUrl") as? String
        if let userDpUrl = URL(string: userDpString!) {
            
            imageViewUserImage.isHidden = false
            
            imageViewUserImage.sd_setImage(with: userDpUrl, placeholderImage: nil, options: [.progressiveDownload,.scaleDownLargeImages], completed: nil)
            
            imageViewUserImage.layer.cornerRadius = imageViewUserImage.frame.height/2
            
            labelInitial.isHidden = true
        }
        
        guard socialfeedviewmodel != nil, commentIndex != nil else {
            return
        }
        
        socialfeedviewmodel?.socialFeedConnectionTimeOut.value = nil
        /**
         connection timeout
         */
        socialfeedviewmodel?.socialFeedConnectionTimeOut.bind { [unowned self] in
            guard $0 != nil else {
                return
            }
            self.enableUserInteractions()
            self.dismissActivityIndicator(activityIndicator: self.activityIndicator)
            self.popUpMessage(value: 20)
        }
        
        
        setUpListener()
        setUpAnotherLoginListener(genericviewmodel: socialfeedviewmodel!)
        
        commentToEdit = socialfeedviewmodel!.getCommentAt(index: commentIndex!)
        
        textViewEditComment.delegate = self
        imageViewUserImage.layer.cornerRadius = imageViewUserImage.frame.height / 2
        
        if let userDpString = commentToEdit!.userDpUrl {
            if let userDpUrl = URL(string: userDpString) {
                imageViewUserImage.sd_setImage(with: userDpUrl, placeholderImage: #imageLiteral(resourceName: "gme-logo"), options: [.progressiveDownload,.scaleDownLargeImages], completed: nil)
            }
        }
        
        if commentToEdit!.userComment != nil {
            socialfeedviewmodel!.updateCommentText(text: commentToEdit!.userComment)
            textViewEditComment.text = commentToEdit!.userComment
        }
        
        
        
     
        textViewEditComment.translatesAutoresizingMaskIntoConstraints = true
//        textViewEditComment.sizeToFit()
//        textViewEditComment.contentMode = .scaleToFill
        
        var frame = self.textViewEditComment.frame
        frame.size.height = self.textViewEditComment.contentSize.height
        self.textViewEditComment.frame = frame
        
        
        textViewEditComment.isScrollEnabled = true
    }
    
    func setUpListener() {
        
        socialfeedviewmodel!.socialFeedsRxValue.bind { [weak self] in
            guard $0 != nil else {
                return
            }
            
            self?.enableUserInteractions()
            
            if self?.activityIndicator != nil {
                self?.dismissActivityIndicator(activityIndicator: (self?.activityIndicator)!)
            }
            
            guard $0 != 0 else {
                self?.popUpMessageError(value: 10, message: (self?.socialfeedviewmodel!.getErrorMessage())!)
                self?.socialfeedviewmodel!.socialFeedsRxValue.value = nil
                return
            }
            
            switch $0 {
                
            case socialWallCode.createUpdateComment.rawValue?:
               self?.navigationController?.popViewController(animated: true)
                
            default:
                return
            }
            
            self?.socialfeedviewmodel!.socialFeedsRxValue.value = nil
        }
    }
  
    @IBAction func updateCommentButton(_ sender: Any) {
        
        disableUserInteractions()
        showActivityIndicator(activityIndicator: activityIndicator)
        
        if feedIndex != nil {
            let feed = socialfeedviewmodel!.getSocialFeedAt(index: feedIndex!)
            socialfeedviewmodel!.updateCommentFor(feedId: feed.id, commentId: commentToEdit!.commentId, commentIndex: commentIndex!)
        } else {
            let feed = socialfeedviewmodel!.getParticularFeed()
            socialfeedviewmodel!.updateCommentFor(feedId: feed.id, commentId: commentToEdit!.commentId, commentIndex: commentIndex!)
        }
        
    }
    
    @IBAction func cancelButton(_ sender: Any) {
        navigationController?.popViewController(animated: true)
    }
    
    func textViewDidBeginEditing(_ textFieldPost: UITextView) {

    }
    
    func textViewDidEndEditing(_ textFieldPost: UITextView) {

    }
    
//    func textViewDidChange(_ textView: UITextView) {
//
//        let size = textView.sizeThatFits(CGSize(width: textView.frame.size.width, height: CGFloat.greatestFiniteMagnitude))
//        if size.height != textViewEditCommentConstraint.constant && size.height > textView.frame.size.height || size.height < textView.frame.size.height{
//            textViewEditCommentConstraint.constant = size.height + 8
//            textView.setContentOffset(CGPoint.zero, animated: false)
//        }
//    }

    func textView(_ textView: UITextView, shouldChangeTextIn range: NSRange, replacementText text: String) -> Bool {
        commentInputText = (textView.text! as NSString).replacingCharacters(in: range, with: text)
        socialfeedviewmodel?.updateCommentText(text: commentInputText!)
        return true
    }
    
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }

}



//    func textViewDidChangeSelection(_ textView: UITextView) {
//        let minLocation  = 3
//        let currentRange = textView.selectedRange
//        if (currentRange.location < minLocation) {
//            let lengthDelta = (minLocation - currentRange.location)
//            //Minus the number of characters moved so the end point of the selection does not change.
//            let newRange = NSMakeRange(minLocation, currentRange.length - lengthDelta);
//            //Should use UITextInput protocol
//            textView.selectedRange = newRange;
//        }
//    }