//
//  ComposeAttachmentView.swift
//  Tusker
//
//  Created by Shadowfacts on 1/10/19.
//  Copyright © 2019 Shadowfacts. All rights reserved.
//

import UIKit
import Photos

protocol ComposeMediaViewDelegate {
    func didRemoveMedia(_ mediaView: ComposeMediaView)
}

class ComposeMediaView: UIView {

    var delegate: ComposeMediaViewDelegate?
    
    @IBOutlet weak var imageView: UIImageView!
    @IBOutlet weak var descriptionTextView: UITextView!
    @IBOutlet weak var placeholderLabel: UILabel!
    
    static func create() -> ComposeMediaView {
        return UINib(nibName: "ComposeMediaView", bundle: nil).instantiate(withOwner: nil, options: nil).first as! ComposeMediaView
    }
    
    override func awakeFromNib() {
        super.awakeFromNib()
        
        imageView.layer.masksToBounds = true
        imageView.layer.cornerRadius = 10 // 0.1 * imageView.frame.width
        
        descriptionTextView.delegate = self
    }
    
    func update(asset: PHAsset) {
//        let size = imageView.frame.size // is this initialized yet?
        let size = CGSize(width: 80, height: 80)
        PHImageManager.default().requestImage(for: asset, targetSize: size, contentMode: .aspectFill, options: nil) { (image, _) in
            self.imageView.image = image
        }
    }
    
    // MARK: - Interaction
    
    @IBAction func removePressed(_ sender: Any) {
        delegate?.didRemoveMedia(self)
    }
    
}

extension ComposeMediaView: UITextViewDelegate {
    func textViewDidChange(_ textView: UITextView) {
        placeholderLabel.isHidden = !descriptionTextView.text.isEmpty
    }
}