platform-ios/RainbowPlanet/RainbowPlanet/Modules/PublishModule/PublishTakePhoto/PublishConfirmPhotoController.swift

//
//  PublishConfirmPhotoController.swift
//  RainbowPlanet
//
//  Created by Christopher on 2019/6/20.
//  Copyright © 2019 RainbowPlanet. All rights reserved.
//

import UIKit
import RxSwift
import Photos

class PublishConfirmPhotoController: BaseViewController {
    
    var photoImg: UIImage? {
        didSet {
            photoImageView.image = self.photoImg
        }
    }
    
    typealias PubImgClosure = (_ selectedAssetArray: Array<UIImage>) -> Void
    var pubImgClosure: PubImgClosure?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        setupViews()
        setupLayouts()
    }
    
    override func setupViews() {
        navigationBar.isHidden = true
        
        view.addSubview(photoImageView)
        view.addSubview(retakeBtn)
        view.addSubview(usePhotoBtn)
    }
    
    override func setupLayouts() {        
        photoImageView.snp.makeConstraints { (make) in
            make.edges.equalToSuperview()
        }
        retakeBtn.snp.makeConstraints { (make) in
            make.left.equalTo(photoImageView.snp_left)
            make.bottom.equalTo(-kSafeTabBarHeight)
            make.width.equalTo(125)
            make.height.equalTo(48)
        }
        usePhotoBtn.snp.makeConstraints { (make) in
            make.right.equalTo(photoImageView.snp_right)
            make.bottom.equalTo(-kSafeTabBarHeight)
            make.width.equalTo(125)
            make.height.equalTo(48)
        }
    }
    
    private lazy var photoImageView: UIImageView = {
        let photoImageView = UIImageView()
        return photoImageView
    }()
    
    private lazy var retakeBtn: UIButton = {
        let retakeBtn = UIButton(type: UIButton.ButtonType.custom)
        retakeBtn.setTitle("重拍", for: .normal)
        retakeBtn.setTitleColor(kffffffColor, for: .normal)
        retakeBtn.titleLabel?.font = kMediumFont15
        retakeBtn.rx.tap.subscribe(onNext: { [weak self] (data) in
            self?.dismiss(animated: true, completion: nil)
        }).disposed(by: disposeBag)
        return retakeBtn
    }()
    
    private lazy var usePhotoBtn: UIButton = {
        let usePhotoBtn = UIButton(type: UIButton.ButtonType.custom)
        usePhotoBtn.setTitle("使用照片", for: .normal)
        usePhotoBtn.setTitleColor(kffffffColor, for: .normal)
        usePhotoBtn.titleLabel?.font = kMediumFont15
        usePhotoBtn.rx.tap.subscribe(onNext: { [weak self] (data) in
        PHPhotoLibrary.shared().performChanges({
            
        }, completionHandler: { (success, error) in
                // 写入相册成功后，回到主线程进行流程
                DispatchQueue.main.async {
                    if success != true{
                        SwiftProgressHUD.shared().showText("保存失败")
                        return
                    }
                    
                    // 保存成功，跳转至发布
                    self?.dismiss(animated: false, completion: nil)
                    let imageArr: Array<UIImage> = [self!.photoImg!]
                    if let pubImgClosure = self?.pubImgClosure {
                        pubImgClosure(imageArr)
                    }
                }
        })
            
        }).disposed(by: disposeBag)
        return usePhotoBtn
    }()
    
}