WIMY - Gloss PB

Book.swift

//
//  Book.swift
//  WIMB
//
//  Created by Gil Felot on 10/01/16.
//  Copyright © 2016 gfelot. All rights reserved.
//

import Foundation
import UIKit
import Gloss

struct imageLinks: Decodable {
    
    let coverString: String!
    
    init?(json: JSON) {
        if let _medium: String = "medium" <~~ json {
            coverString = _medium
        } else if let _small: String! = "small" <~~ json {
            coverString = _small
        } else if let _thumbnail: String! = "thumbnail" <~~ json {
            coverString = _thumbnail
        } else if let _smallThumbnail: String! = "smallThumbnail" <~~ json {
            coverString = _smallThumbnail
        } else {
            coverString = nil
        }
    }
    
}

struct Book: Decodable {
    let selfLink:String!
    let coverURL:imageLinks!
    let title:String!
    let authors:[String]!
//    let ISBN13:String!
    let ID:String!
    let desc:String!
    let publisher:String!
    let publishedDate:String!
    let pageCount:Int!
    let language:String!
    let categories:[String]!
    let averageRating:Double! //min 1 to max 5
    let previewLink:String!


    init?(json: JSON) {
        guard let data: JSON = "items" <~~ json else {
            print("Error no JSON data available")
            return nil
        }
        
        guard let _selfLink: String = "selfLink" <~~ data else {
            return nil
        }
        selfLink = _selfLink
        
        guard let _coverURL: imageLinks = "imageLinks" <~~ data else {
            return nil
        }
        coverURL = _coverURL
        
        guard let _title: String = "volumeInfo.title" <~~ data else {
            return nil
        }
        title = _title
        
        guard let _authors: [String] = "volumeInfo.authors" <~~ data else {
            return nil
        }
        authors = _authors
        
//        guard let _ISNB13: String = "volumeInfo.industryIdentifiers" <~~ data else {
//            return nil
//        }
//        ISBN13 = _ISNB13
        
        guard let _id: String = "id" <~~ data else {
            return nil
        }
        ID = _id
        
        guard let _desc: String = "volumeInfo.description" <~~ data else {
            return nil
        }
        desc = _desc
        
        guard let _publisher: String = "volumeInfo.publisher" <~~ data else {
            return nil
        }
        publisher = _publisher
        
        guard let _publishedDate: String = "volumeInfo.publishedDate" <~~ data else {
            return nil
        }
        publishedDate = _publishedDate
        
        guard let _pageCount: Int = "volumeInfo.pageCount" <~~ data else {
            return nil
        }
        pageCount = _pageCount
        
        guard let _language: String = "volumeInfo.language" <~~ data else {
            return nil
        }
        language = _language
        
        guard let _categories: [String] = "volumeInfo.categories" <~~ data else {
            return nil
        }
        categories = _categories
        
        guard let _averageRating: Double = "volumeInfo.averageRating" <~~ data else {
            return nil
        }
        averageRating = _averageRating
        
        guard let _previewLink: String = "volumeInfo.previewLink" <~~ data else {
            return nil
        }
        previewLink = _previewLink
        
    }
    
}

ScanBookViewController.swift

//
//  BookViewController.swift
//  WIMB
//
//  Created by Gil Felot on 09/01/16.
//  Copyright © 2016 gfelot. All rights reserved.
//

import UIKit
import AVFoundation
import Alamofire


protocol ScanBookDelegate{

    func didScanBook(scannedBook: Book)
}

class ScanBookViewController: UIViewController, AVCaptureMetadataOutputObjectsDelegate {

    var book:Book!
    var delegate: ScanBookDelegate?
    var captureSession: AVCaptureSession!
    var previewLayer: AVCaptureVideoPreviewLayer!

    override func viewDidLoad() {
        super.viewDidLoad()

        view.backgroundColor = UIColor.blackColor()
        captureSession = AVCaptureSession()

        let videoCaptureDevice = AVCaptureDevice.defaultDeviceWithMediaType(AVMediaTypeVideo)
        let videoInput: AVCaptureDeviceInput

        do {
            videoInput = try AVCaptureDeviceInput(device: videoCaptureDevice)
        } catch {
            return
        }

        guard captureSession.canAddInput(videoInput) else {
            alertPopUp("Scanning not supported", message: "Your device does not support scanning a code from an item. Please use a device with a camera.")
            captureSession = nil
            return
        }
        captureSession.addInput(videoInput)

        let metadataOutput = AVCaptureMetadataOutput()

        guard captureSession.canAddOutput(metadataOutput) else {
            alertPopUp("Scanning not supported", message: "Your device does not support scanning a code from an item. Please use a device with a camera.")
            captureSession = nil
            return
        }
        captureSession.addOutput(metadataOutput)
        metadataOutput.setMetadataObjectsDelegate(self, queue: dispatch_get_main_queue())
        metadataOutput.metadataObjectTypes = [AVMetadataObjectTypeEAN8Code, AVMetadataObjectTypeEAN13Code]

        previewLayer = AVCaptureVideoPreviewLayer(session: captureSession)
        previewLayer.frame = view.layer.bounds
        previewLayer.videoGravity = AVLayerVideoGravityResizeAspectFill
        view.layer.addSublayer(previewLayer)

        captureSession.startRunning()
    }

    func alertPopUp(title:String, message:String) {
        let alert = UIAlertController(title: title, message: message, preferredStyle: UIAlertControllerStyle.Alert)
        alert.addAction(UIAlertAction(title: "OK", style: .Default, handler: { (action) -> Void in
            self.dismissViewControllerAnimated(true, completion: nil)
        }))
        self.presentViewController(alert, animated: true, completion: nil)
    }

    override func viewWillAppear(animated: Bool) {
        super.viewWillAppear(animated)

        if (captureSession?.running == false) {
            captureSession.startRunning()
        }
    }

    override func viewWillDisappear(animated: Bool) {
        super.viewWillDisappear(animated)

        if (captureSession?.running == true) {
            captureSession.stopRunning()
        }
    }

    func captureOutput(captureOutput: AVCaptureOutput!, didOutputMetadataObjects metadataObjects: [AnyObject]!, fromConnection connection: AVCaptureConnection!) {
        captureSession.stopRunning()

        if let metadataObject = metadataObjects.first {
            let readableObject = metadataObject as! AVMetadataMachineReadableCodeObject

            AudioServicesPlaySystemSound(SystemSoundID(kSystemSoundID_Vibrate))
            foundCode(readableObject.stringValue)
        }

        dismissViewControllerAnimated(true, completion: nil)
    }


    func foundCode(code: String) {
        let baseURL = "https://www.googleapis.com/books/v1/volumes?q=isbn="
        let APIKey = "&key=AIzaSyAFZQ2C65U-wkrX64UK48Q5WbGWXFZ-fKY"
        let options = "&maxResults=1"
        let myRequest = baseURL + "\(code)" + options + APIKey
//        let requestTest = "https://www.googleapis.com/books/v1/volumes?q=isbn=2226319298&maxResults=1&key=AIzaSyCYXCU5syIlrZ9YyLMOrj-b1x6qylR7aQ4"
        Alamofire.request(.GET, myRequest).responseJSON() {
            (data) in
            print("My JSON")
            print(data)

            self.book(data)
//            let bookData = BookFromJSON(json: data)

//            self.book.fillBook(bookData)
        }

        print("URL : \(myRequest)")

        self.delegate?.didScanBook(book) //Call the delegate method
        self.navigationController?.popViewControllerAnimated(true)
    }

    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {

        if segue.identifier == "infoFinded" {
            let bookVC: BookViewController = segue.destinationViewController as! BookViewController
            bookVC.book = book
        }
    }

    override func prefersStatusBarHidden() -> Bool {
        return true
    }

    override func supportedInterfaceOrientations() -> UIInterfaceOrientationMask {
        return .Portrait
    }
}

🐒

Remplace la déclaration de la variable ?

var book:Book?

TIP : Ensuite pour la requête 🐚
Test la valeur d'erreur, et laisse Alamofire déterminer les erreur en fonction du code avec validate:
C'est avec Result

Alamofire.request(.GET, myRequest).validate().responseJSON(completionHandler: { (response: Response<AnyObject, NSError>) -> Void in
            switch response.result {
            case .Success(let value):
             if let json = value as? [String: AnyObject] {
               //Parse icic
             }
            case .Failure(let err):
                //Erreur
            }
        })

📟 📦 Parser ton objet:

self.book = Book(json: json)
//check si ton book et pas nil => bind tes datas

func foundCode(code: String) {
        let baseURL = "https://www.googleapis.com/books/v1/volumes?q=isbn="
        let APIKey = "&key=AIzaSyAFZQ2C65U-wkrX64UK48Q5WbGWXFZ-fKY"
        let options = "&maxResults=1"
        let myRequest = baseURL + "\(code)" + options + APIKey
//        let requestTest = "https://www.googleapis.com/books/v1/volumes?q=isbn=2226319298&maxResults=1&key=AIzaSyCYXCU5syIlrZ9YyLMOrj-b1x6qylR7aQ4"
        Alamofire.request(.GET, myRequest).validate().responseJSON(completionHandler: { (response: Response<AnyObject, NSError>) -> Void in
            switch response.result {
            case .Success(let value):
                if let json = value as? [String: AnyObject] {
                    //Parse ici
                    print("JSON: \(json)")
                    self.book = Book(json: json)
                    guard let _book = self.book else {

                        print("Error : book = nil")
                    }

                    self.delegate?.didScanBook(self.book!) //Call the delegate method
                    self.navigationController?.popViewControllerAnimated(true)
                }
            case .Failure(let err):
                print("Error: \(err)")

            }
        })


    }