//
//  ImagePicker.swift
//  HealthyZG
//
//  Created by 林 on 2020/6/17.
//  Copyright © 2020 Lin. All rights reserved.
//

import Foundation
import UIKit

class ImagePicker: NSObject {
    /// 选择回调
    var imageDidPicked: ((UIImage) -> Void)?
    
    /// 拍照相册选择ActionSheet
    func presentImagePickerPopup() {
        let popup = ImagePickerPopup()
        popup.cameraAction = { [weak self] in
            guard let self =  self else { return }
            self.requestCameraAuthorization(delegate: self)
        }
        popup.albumAction = { [weak self] in
            guard let self =  self else { return}
            self.requestAlbumAuthorization()
        }
        
        UIViewController.presentController(popup, animated: true)
    }
    
    /// 显示相册
    func showCamera() {
        requestCameraAuthorization(delegate: self)
    }
    
    /// 显示相机
    func showAlbum() {
        requestAlbumAuthorization()
    }
    
    /// 权限：拍照
    func requestCameraAuthorization(delegate: (UIImagePickerControllerDelegate & UINavigationControllerDelegate)) {
        Permission.cameraAuthorizationStatus { (status) in
            guard status else {
                Permission.openAppSetting(title: "", message: String(format: "PermissionCamera".localizedString, kAppName))
                return
            }
            Permission.photosAuthorizationStatus { (status) in
                guard status else {
                    Permission.openAppSetting(title: "", message: String(format: "PermissionPhotos".localizedString, kAppName))
                    return
                }
                self.presentCameraImagePicker()
            }
        }
    }
    
    /// 拍照
    func presentCameraImagePicker() {
        let imagePickerController = UIImagePickerController()
        imagePickerController.sourceType = .camera
        imagePickerController.delegate = self
        
        UIViewController.presentController(imagePickerController, animated: true)
//        navigator.present(imagePickerController)
    }
    
    /// 权限：图片选择
    func requestAlbumAuthorization() {
        Permission.photosAuthorizationStatus { (status) in
            guard status else {
                Permission.openAppSetting(title: "", message: String(format: "PermissionPhotos".localizedString, kAppName))
                return
            }
            self.presentAlbumImagePicker()
        }
    }
    
    /// 图片选择
    func presentAlbumImagePicker() {
        let imagePickerController = UIImagePickerController()
        imagePickerController.sourceType = .photoLibrary
        imagePickerController.delegate = self
        
//        let nav = BaseNavigationController(rootViewController: imagePickerController)
//        nav.modalPresentationStyle = .overFullScreen
        UIViewController.presentController(imagePickerController, animated: true)
//        navigator.present(imagePickerController)
    }
}

extension ImagePicker: UIImagePickerControllerDelegate, UINavigationControllerDelegate {
    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey: Any]) {
        guard let type = info[.mediaType] as? String, type == "public.image",
            let image = info[.originalImage] as? UIImage else {
                picker.dismiss(animated: true, completion: nil)
                return
        }
        DispatchQueue.global().async {
//            if let newImage = image.resizeTo(CGSize(width: 1024.0, height: 1024.0), scale: false) {
                self.imageDidPicked?(image)
//            }
        }
        picker.dismiss(animated: true, completion: nil)
    }
    
    func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
        picker.dismiss(animated: true, completion: nil)
    }
}