KCD/ApplicationDirecrories.swift

   1 //
   2 //  ApplicationDirecrories.swift
   3 //  KCD
   4 //
   5 //  Created by Hori,Masaki on 2017/02/08.
   6 //  Copyright © 2017年 Hori,Masaki. All rights reserved.
   7 //
   8
   9 import Foundation
  10
  11 private func supportDirName() -> String {
  12
  13     let main = Bundle.main
  14
  15     return main.bundleIdentifier
  16         ?? main.infoDictionary?["CFBundleName"] as? String
  17         ?? main.infoDictionary?["CFBundleExecutable"] as? String
  18         ?? "UnknownAppliation"
  19 }
  20
  21 func localizedAppName() -> String {
  22
  23     guard let name = Bundle.main.localizedInfoDictionary?["CFBundleName"] as? String,
  24         !name.isEmpty else {
  25
  26             return supportDirName()
  27     }
  28
  29     return name
  30 }
  31
  32 struct ApplicationDirecrories {
  33
  34     static let support = searchedURL(for: .applicationSupportDirectory)
  35         .appendingPathComponent(supportDirName())
  36
  37     static let documents = searchedURL(for: .documentDirectory)
  38
  39     static let pictures = searchedURL(for: .picturesDirectory)
  40
  41     private static func searchedURL(for directory: FileManager.SearchPathDirectory) -> URL {
  42
  43         return FileManager.default.urls(for: directory, in: .userDomainMask)
  44             .last
  45             ?? URL(fileURLWithPath: NSHomeDirectory())
  46     }
  47 }
  48
  49 extension ApplicationDirecrories {
  50
  51     static let screenshotSaveDirectoryURL: URL = {
  52
  53         let parentURL = URL(fileURLWithPath: AppDelegate.shared.screenShotSaveDirectory)
  54         let url = parentURL.appendingPathComponent(localizedAppName())
  55         let fm = FileManager.default
  56         var isDir: ObjCBool = false
  57
  58         do {
  59
  60             if !fm.fileExists(atPath: url.path, isDirectory: &isDir) {
  61
  62                 try fm.createDirectory(at: url, withIntermediateDirectories: false)
  63
  64             } else if !isDir.boolValue {
  65
  66                 print("\(url) is regular file, not direcory.")
  67                 return parentURL
  68             }
  69
  70         } catch {
  71
  72             print("Can not create screenshot save directory.")
  73             return parentURL
  74         }
  75
  76         return url
  77     }()
  78 }
  79
  80
  81 func createDirectory(_ url: URL) -> Bool {
  82
  83     do {
  84
  85         try FileManager.default.createDirectory(at: url,
  86                                                 withIntermediateDirectories: false,
  87                                                 attributes: nil)
  88
  89         return true
  90
  91     } catch {
  92
  93         return false
  94     }
  95 }
  96
  97 func checkDirectory(_ url: URL, create: Bool) -> Bool {
  98
  99     do {
 100
 101         let resourceValue = try url.resourceValues(forKeys: [.isDirectoryKey])
 102         if !resourceValue.isDirectory! {
 103
 104             print("Expected a folder to store application data, found a file \(url.path).")
 105
 106             return false
 107         }
 108
 109         return true
 110
 111     } catch let error as NSError {
 112
 113         if create, error.code == NSFileReadNoSuchFileError {
 114
 115             return createDirectory(url)
 116         }
 117
 118         return false
 119     }
 120 }