/*
 * Copyright (c) 2010-2020 Belledonne Communications SARL.
 *
 * This file is part of linphone-iphone
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import Foundation
import Photos
import PhotosUI
import MobileCoreServices
import UniformTypeIdentifiers


class MessageView:  UIView, PHPickerViewControllerDelegate, UIDocumentPickerDelegate {
	
	let side_buttons_margin = 10
	
	var action1 : (() -> Void)? = nil
	var action2 : (() -> Void)? = nil
	var action3 : (() -> Void)? = nil
	
	let pictureButton = CallControlButton(buttonTheme:VoipTheme.nav_button(""))
	let voiceRecordButton = CallControlButton(buttonTheme:VoipTheme.nav_button("vr_off"))
	let sendButton = CallControlButton(buttonTheme:VoipTheme.nav_button(""))
	let messageTextView = UIView()
	let messageText = UITextView()
	
	override init(frame: CGRect) {
		super.init(frame: frame)
		setupView()
  	}
	
  	required init?(coder aDecoder: NSCoder) {
		super.init(coder: aDecoder)
		setupView()
  	}
	
	private func setupView() {
		backgroundColor = VoipTheme.voipToolbarBackgroundColor.get()
		
		addSubview(pictureButton)
		pictureButton.alignParentLeft(withMargin: side_buttons_margin).matchParentHeight().done()
		pictureButton.setImage(UIImage(named:"chat_attachment_default.png"), for: .normal)
		pictureButton.setImage(UIImage(named:"chat_attachment_over.png"), for: .highlighted)
		pictureButton.onClickAction = alertAction
		
		addSubview(voiceRecordButton)
		voiceRecordButton.toRightOf(pictureButton, withLeftMargin: 10).matchParentHeight().done()
		voiceRecordButton.size(w: 30, h: 30).done()
		voiceRecordButton.onClickAction = action3

		addSubview(sendButton)
		sendButton.alignParentRight(withMargin: side_buttons_margin).matchParentHeight().done()
		sendButton.setImage(UIImage(named:"chat_send_default.png"), for: .normal)
		sendButton.setImage(UIImage(named:"chat_send_over.png"), for: .highlighted)
		sendButton.onClickAction = action2
		
		addSubview(messageTextView)
		messageTextView.toRightOf(voiceRecordButton, withLeftMargin: 5).toLeftOf(sendButton).matchParentHeight().done()
		
		messageTextView.addSubview(messageText)
		messageText.matchParentDimmensions(insetedByDx: 10).done()
		messageText.font = UIFont.systemFont(ofSize: 18)
		messageText.backgroundColor = UIColor.white
	}
	
	func alertAction() {

		let alertController = UIAlertController(title: VoipTexts.image_picker_view_alert_action_title, message: nil, preferredStyle: .actionSheet)
		
		let alert_action_camera = UIAlertAction(title: VoipTexts.image_picker_view_alert_action_camera, style: .default, handler: { (action) -> Void in
			self.imageCamera()
		})
		let alert_action_photo_library = UIAlertAction(title: VoipTexts.image_picker_view_alert_action_photo_library, style: .default, handler: { (action) -> Void in
			self.pickPhotos()
		})
		let alert_action_document = UIAlertAction(title: VoipTexts.image_picker_view_alert_action_document, style: .default, handler: { (action) -> Void in
			self.openDocumentPicker()
		})
		
		let cancel = UIAlertAction(title: VoipTexts.cancel, style: .cancel) { (action) -> Void in
		}
		
		
		alertController.addAction(cancel)
		alertController.addAction(alert_action_camera)
		alertController.addAction(alert_action_photo_library)
		alertController.addAction(alert_action_document)
		
		alertController.popoverPresentationController?.sourceView = PhoneMainView.instance().mainViewController.statusBarView
		PhoneMainView.instance().mainViewController.present(alertController, animated: true)
	}
	
	func imageCamera(){
		let vc = UIImagePickerController()
		vc.sourceType = .camera
		vc.allowsEditing = true
		PhoneMainView.instance().mainViewController.present(vc, animated: true)

	}
	
	func pickPhotos()
	{
		if #available(iOS 14.0, *) {
			var config = PHPickerConfiguration()
			let pickerViewController = PHPickerViewController(configuration: config)
			pickerViewController.delegate = self
			PhoneMainView.instance().mainViewController.present(pickerViewController, animated: true)
		} else {
			// Fallback on earlier versions
		}
	}
	
	// MARK: PHPickerViewControllerDelegate
	
	@available(iOS 14.0, *)
	func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
		picker.dismiss(animated: true, completion: nil)
	}
	
	func openDocumentPicker() {
		if #available(iOS 14.0, *) {
			let documentPicker = UIDocumentPickerViewController(forOpeningContentTypes: [.jpeg, .png])
			documentPicker.delegate = self
		 	documentPicker.modalPresentationStyle = .overFullScreen
			PhoneMainView.instance().mainViewController.present(documentPicker, animated: true)
		} else {
			// Fallback on earlier versions
		}
	}
}