iOS/WolneLektury/Utils/DatabaseManager.swift

   1 //
   2 //  DatabaseManager.swift
   3 //  WolneLektury
   4 //
   5 //  Created by Pawel Dabrowski on 11/09/2018.
   6 //  Copyright © 2018 Fundacja Nowoczesna Polska. All rights reserved.
   7 //
   8
   9 import UIKit
  10 import RealmSwift
  11
  12 class DatabaseManager: NSObject {
  13     static let shared = DatabaseManager()
  14
  15     override init() {
  16         super.init()
  17         realmConfiguration()
  18     }
  19
  20     var rlmApplication:RLMApplication?
  21
  22     func realmConfiguration()
  23     {
  24         Realm.Configuration.defaultConfiguration = Realm.Configuration(
  25             schemaVersion: 1,
  26             migrationBlock: { migration, oldSchemaVersion in
  27                 /*
  28                  if (oldSchemaVersion < 1) {
  29
  30                  } */
  31         })
  32
  33         let realm = try! Realm()
  34         self.rlmApplication = realm.objects(RLMApplication.self).last
  35
  36         print(realm.configuration.fileURL)
  37
  38         if  self.rlmApplication  == nil
  39         {
  40             self.rlmApplication  = RLMApplication()
  41             try! realm.write {
  42                 realm.add(self.rlmApplication!)
  43             }
  44         }
  45     }
  46
  47     /// removing database
  48     func purgeData(){
  49         let realm = try! Realm()
  50         self.rlmApplication = nil
  51         try! realm.write {
  52             realm.deleteAll()
  53         }
  54
  55         self.rlmApplication  = RLMApplication()
  56         try! realm.write {
  57             realm.add(self.rlmApplication!)
  58         }
  59     }
  60
  61     func isUserPremium()-> Bool{
  62         if let premium = rlmApplication?.user?.premium, premium == true{
  63             return true
  64         }
  65         return false
  66     }
  67
  68     func updateUser(usernameModel: UsernameModel?){
  69         self.rlmApplication?.updateUser(usernameModel: usernameModel)
  70     }
  71
  72     func addBookToDownloaded(bookDetailsModel: BookDetailsModel) {
  73         rlmApplication?.addBookToDownloaded(bookDetailsModel: bookDetailsModel)
  74     }
  75
  76     func removeAllBooksFromDownloaded() {
  77         guard let application = rlmApplication else { return }
  78         for book in application.downloadedBooks {
  79             DownloadManager.sharedInstance.deleteEbook(bookSlug: book.slug)
  80             DownloadManager.sharedInstance.deleteAudiobook(bookSlug: book.slug)
  81         }
  82
  83         application.removeAllBooksFromDownloaded()
  84     }
  85
  86     func removeBookFromDownloaded(bookSlug: String) -> Bool{
  87         guard let application = rlmApplication else {
  88             return false
  89         }
  90
  91         DownloadManager.sharedInstance.deleteEbook(bookSlug: bookSlug)
  92         DownloadManager.sharedInstance.deleteAudiobook(bookSlug: bookSlug)
  93         return application.removeBookFromDownloaded(bookSlug: bookSlug)
  94     }
  95
  96     func getBookFromDownloaded(bookSlug: String) -> BookDetailsModel? {
  97         return rlmApplication?.getBookFromDownloaded(bookSlug: bookSlug)
  98     }
  99
 100     func updateCurrentChapters(bookDetailsModel: BookDetailsModel, currentChapter: Int?, totalChapters: Int?, currentAudioChapter: Int?, totalAudioChapters: Int?)
 101     {
 102         let realm = try! Realm()
 103         realm.beginWrite()
 104
 105         if let currentChapter = currentChapter{
 106             bookDetailsModel.currentChapter = currentChapter
 107         }
 108
 109         if let totalChapters = totalChapters{
 110             bookDetailsModel.totalChapters = totalChapters
 111         }
 112
 113         if let currentAudioChapter = currentAudioChapter{
 114             bookDetailsModel.currentAudioChapter = currentAudioChapter
 115         }
 116
 117         if let totalAudioChapters = totalAudioChapters{
 118             bookDetailsModel.totalAudioChapters = totalAudioChapters
 119         }
 120
 121         try! realm.commitWrite()
 122     }
 123
 124     func removeBookFromDownloadedIfNoFiles(bookSlug: String) {
 125
 126         if FileManager.default.fileExists(atPath: FileType.ebook.destinationPathWithSlug(bookSlug: bookSlug)) {
 127             return
 128         }
 129
 130         let fileNames = try! FileManager.default.contentsOfDirectory(atPath: FileType.audiobook.destinationPathWithSlug(bookSlug: bookSlug))
 131
 132         if fileNames.count > 0 {
 133             return
 134         }
 135
 136         let _ = rlmApplication?.removeBookFromDownloaded(bookSlug: bookSlug)
 137     }
 138
 139     func refresh(){
 140         rlmApplication?.realm?.refresh()
 141     }
 142
 143     func setUserPremium() {
 144         rlmApplication?.setUserPermium()
 145     }
 146 }