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+// Copyright (C) 2016 Inigo Valentin
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+//
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+// This file is part of the Gasteizko Margolariak IOS app.
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+//
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+// The Gasteizko Margolariak IOS app is free software: you can
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+// redistribute it and/or modify it under the terms of the
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+// GNU General Public License as published by the Free Software
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+// Foundation, either version 3 of the License, or (at your
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+// option) any later version.
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+//
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+// The Gasteizko Margolariak IOS app is distributed in the
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+// hope that it will be useful, but WITHOUT ANY WARRANTY;
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+// without even the implied warranty of MERCHANTABILITY or
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+// FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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+// Public License for more details.
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+//
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+// You should have received a copy of the GNU General Public
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+// License along with the Gasteizko Margolariak IOS app.
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+// If not, see <http://www.gnu.org/licenses/>.
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+
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+import Foundation
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+import CoreData
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+import UIKit
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+import UserNotifications
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+
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+/**
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+Class to handle server sync.
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+*/
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+class Notifications{
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+
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+ /**
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+ Starts the sync process.
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+ Always asynchronously.
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+ */
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+ init(){
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+ let url = buildUrl();
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+ notification(url: url)
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+ }
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+
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+
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+ /**
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+ Builds the URL to perform the sync against.
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+ :returns: The URL.
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+ */
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+ func buildUrl() -> URL{
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+
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+ let url = URL(string: "https://margolariak.com/API/v1/notifications.php")
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+
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+ return url!
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+ }
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+
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+
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+ /**
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+ Performs an asynchronous sync.
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+ It fetches the info from the server and stores as Core Data
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+ :param: url The url to sync.
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+ */
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+ func notification(url: URL){
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+
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+ NSLog(":NOTIFICATION:LOG: Notification fetch started.")
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+
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+ //Synchronously get data
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+ let task = URLSession.shared.dataTask(with: url) { data, response, error in
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+ guard error == nil else {
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+ NSLog(":NOTIFICATION:ERROR: Unknown error.")
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+ return
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+ }
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+ guard let data = data else {
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+ NSLog(":NOTIFICATION:ERROR: Data is empty.")
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+ return
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+ }
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+
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+ let strData: String = String(data:data, encoding: String.Encoding.utf8)!
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+ NSLog(":NOTIFICATION:LOG: Data received: \(strData)")
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+ if strData.length > 0{
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+ let dataNotification: [String] = self.getData(data: strData)
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+ self.saveNotifications(entries: dataNotification)
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+ }
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+
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+ }
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+
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+ task.resume()
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+ }
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+
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+
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+ /**
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+ Extracts notifications from the raw data received.
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+ :param: param Received data in JSON format.
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+ :return: Array of strings containing the notifications.
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+ */
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+ func getData(data: String) -> [String]{
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+
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+ //Separate the entries
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+ var entries : [String] = data.components(separatedBy: "},{")
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+
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+ //Modify the first and the last one to remove bracers
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+ entries[0] = entries[0].subStr(start: 1, end: entries[0].length - 1)
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+ entries[entries.count - 1] = entries[entries.count - 1].subStr(start: 0, end: entries[entries.count - 1].length - 2)
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+
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+
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+ //Return the array
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+ return entries
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+ }
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+
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+
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+ /**
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+ Saves the data in the table.
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+ :param: entries Array of strings containing the rows of the table, in JSON format.
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+ */
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+ func saveNotifications(entries : [String]){
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+
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+ let dateFormatter = DateFormatter()
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+ dateFormatter.timeZone = TimeZone.ReferenceType.local
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+
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+ //Set up context
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+ let appDelegate = UIApplication.shared.delegate as! AppDelegate
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+ let context = NSManagedObjectContext(concurrencyType: .privateQueueConcurrencyType)
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+ context.persistentStoreCoordinator = appDelegate.persistentStoreCoordinator
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+
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+ let entity = NSEntityDescription.entity(forEntityName: "Notification", in: context)
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+
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+ var row: NSManagedObject
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+
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+ //Loop new entries
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+ for entry in entries{
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+
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+ //Get id
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+ var str = entry
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+ let id: Int = Int(str.subStr(start : str.indexOf(target : "\"id\":")! + 6, end : str.indexOf(target : ",\"")! - 2))!
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+
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+ //Get title_es
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let title_es: String = str.subStr(start : str.indexOf(target : "\"title_es\":")! + 12, end : str.indexOf(target : ",\"")! - 2)
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+
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+ //Get title_en
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let title_en: String = str.subStr(start : str.indexOf(target : "\"title_en\":")! + 12, end : str.indexOf(target : ",\"")! - 2)
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+
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+ //Get title_eu
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let title_eu: String = str.subStr(start : str.indexOf(target : "\"title_eu\":")! + 12, end : str.indexOf(target : ",\"")! - 2)
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+
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+ //Get text_es
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let text_es: String = str.subStr(start : str.indexOf(target : "\"text_es\":")! + 11, end : str.indexOf(target : ",\"")! - 2)
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+
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+ //Get text_en
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let text_en: String = str.subStr(start : str.indexOf(target : "\"text_en\":")! + 11, end : str.indexOf(target : ",\"")! - 2)
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+
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+ //Get text_eu
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let text_eu: String = str.subStr(start : str.indexOf(target : "\"text_eu\":")! + 11, end: str.indexOf(target : ",\"")! - 2)
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+
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+ //Get dtime
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ dateFormatter.dateFormat = "yyyy-MM-dd HH:mm:ss"
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+ let dtime = dateFormatter.date(from : str.subStr(start : str.indexOf(target : "\"dtime\":")! + 9, end : str.indexOf(target : ",\"")! - 2))!
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+
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+ //Get GM
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+ str = str.subStr(start : str.indexOf(target : ",\"")! + 1, end : str.length - 1)
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+ let gm: Int = Int(str.subStr(start : str.indexOf(target : "\"gm\":")! + 6, end : str.indexOf(target : ",\"")! - 2))!
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+
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+ // Not getting seen
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+
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+ // Save & show
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+ let fetchRequest: NSFetchRequest<Notification> = Notification.fetchRequest()
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+ fetchRequest.predicate = NSPredicate(format: "id == %i", id)
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+ fetchRequest.fetchLimit = 1
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+ do{
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+ let searchResults = try context.fetch(fetchRequest)
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+ if (searchResults.count == 0){
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+ row = NSManagedObject(entity: entity!, insertInto: context)
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+ row.setValue(id, forKey: "id")
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+ row.setValue(title_es, forKey: "title_es")
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+ row.setValue(title_en, forKey: "title_en")
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+ row.setValue(title_eu, forKey: "title_eu")
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+ row.setValue(text_es, forKey: "text_es")
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+ row.setValue(text_en, forKey: "text_en")
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+ row.setValue(text_eu, forKey: "text_eu")
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+ row.setValue(dtime, forKey: "dtime")
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+ row.setValue(gm, forKey: "gm")
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+ do {
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+ try context.save()
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+
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+ if #available(iOS 10.0, *) {
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+ let content = UNMutableNotificationContent()
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+
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+ // TODO Select language.
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+ content.title = title_es
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+ content.body = text_es
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+ content.sound = UNNotificationSound.default()
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+ let trigger = UNTimeIntervalNotificationTrigger.init(timeInterval: 1, repeats: false)
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+ let request = UNNotificationRequest.init(identifier: "Not", content: content, trigger: trigger)
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+
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+ // Schedule the notification.
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+ let center = UNUserNotificationCenter.current()
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+ center.add(request) {
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+ (error) in
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+ NSLog(":NOTIFICATION:ERROR: Error showing notification \(String(describing: error))")
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+ }
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+ } else {
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+ // Fallback on earlier versions
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+ }
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+ // TODO Get language
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+
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+ }
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+ catch let error as NSError {
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+ NSLog(":NOTIFICATION:ERROR: Could not save notification with id \(id): \(error), \(error.userInfo).")
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+ }
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+ catch {
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+ NSLog(":NOTIFICATION:ERROR: Could not save notification with id \(id).")
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+ }
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+ }
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+ }
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+ catch {
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+ NSLog(":NOTIFICATION:ERROR: Error getting notifications: \(error)")
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+ }
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+ }
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+ }
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+
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+
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+}
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Iñigo Valentin