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smuellnersmuellner
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Added property list impl.
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7 files changed

+271
-62
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7 files changed

+271
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‎Sources/MultiUser/Model/User.swift‎

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//
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// User.swift
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//
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//
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// Created by Sascha Müllner on 29.02.20.
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//
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import Foundation
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struct User : Codable {
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private var uuid:UUID
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var username: String?
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var firstname: String?
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var lastname: String?
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var birthday: Date?
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var emails: [String]?
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var attributes: [String: String]?
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var icon: Data?
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var data: [Data]?
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init() {
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self.uuid = UUID()
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}
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init(from decoder: Decoder) throws {
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let values = try decoder.container(keyedBy: CodingKeys.self)
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self.uuid = try values.decode(UUID.self, forKey: .uuid)
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self.username = try values.decode(String.self, forKey: .username)
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self.firstname = try values.decode(String.self, forKey: .firstname)
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self.lastname = try values.decode(String.self, forKey: .lastname)
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self.birthday = try values.decode(Date.self, forKey: .birthday)
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self.emails = try values.decode([String].self, forKey: .emails)
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self.attributes = try values.decode([String: String].self, forKey: .attributes)
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self.icon = try values.decode(Data.self, forKey: .icon)
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self.data = try values.decode([Data].self, forKey: .data)
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}
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func encode(to encoder: Encoder) throws {
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var container = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(self.uuid, forKey: .uuid)
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try container.encode(self.username, forKey: .username)
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try container.encode(self.firstname, forKey: .firstname)
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try container.encode(self.lastname, forKey: .lastname)
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try container.encode(self.birthday, forKey: .birthday)
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try container.encode(self.emails, forKey: .emails)
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try container.encode(self.attributes, forKey: .attributes)
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try container.encode(self.icon, forKey: .icon)
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try container.encode(self.data, forKey: .data)
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}
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var id: UUID {
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get {
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return self.uuid
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}
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}
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private enum CodingKeys: String, CodingKey {
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case uuid, username, firstname, lastname, birthday, emails, attributes, icon, data
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}
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}

‎Sources/MultiUser/Model/UserIndex.swift‎

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//
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// UserIndex.swift
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//
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//
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// Created by Sascha Müllner on 02.03.20.
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//
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import Foundation
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struct UserIndex : Codable {
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var currentUserUUID: UUID?
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init() {
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}
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init(from decoder: Decoder) throws {
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let values = try decoder.container(keyedBy: CodingKeys.self)
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self.currentUserUUID = try values.decode(UUID.self, forKey: .currentUserUUID)
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}
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func encode(to encoder: Encoder) throws {
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var container = encoder.container(keyedBy: CodingKeys.self)
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try container.encode(self.currentUserUUID, forKey: .currentUserUUID)
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}
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private enum CodingKeys: String, CodingKey {
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case currentUserUUID
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}
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}

‎Sources/MultiUser/PropertyListUserRepository.swift‎

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//
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// PropertyListUserRepository.swift
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//
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//
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// Created by Sascha Müllner on 02.03.20.
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//
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import Foundation
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class PropertyListUserRepository : UserRepositoryProtocol {
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init() {
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do
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{
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try FileManager.default.createDirectory(atPath: usersDirectory.path, withIntermediateDirectories: true, attributes: nil)
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}
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catch let error as NSError
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{
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print("Unable to create directory \(error.debugDescription)")
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}
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}
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func save(user: User) {
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let encoder = PropertyListEncoder()
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encoder.outputFormat = .xml
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do {
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guard let url = self.getURL(user: user) else {
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return
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}
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let data = try encoder.encode(user)
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try data.write(to: url)
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} catch {
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print(error)
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}
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}
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func delete(user: User) {
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do
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{
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guard let url = self.getURL(user: user) else {
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return
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}
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try FileManager.default.removeItem(at: url)
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}
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catch let error as NSError
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{
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print("Unable to delete file \(error.debugDescription)")
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}
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}
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var all: [User] {
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var users = [User]()
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for userURL in self.userURLs {
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guard let user = self.read(url: userURL) else {
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continue
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}
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users.append(user)
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}
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return users
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}
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var current: User? {
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get {
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guard let currentUserUUID = self.userIndex?.currentUserUUID else {
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return nil
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}
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return self.read(userUUID: currentUserUUID)
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}
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set(user) {
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guard let userId = user?.id else {
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return
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}
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var userIndex = self.userIndex ?? UserIndex()
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userIndex.currentUserUUID = userId
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self.userIndex = userIndex
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}
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}
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private func read(userUUID: UUID) -> User? {
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let userId = userUUID.uuidString
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let url = self.usersDirectory.appendingPathComponent(userId, isDirectory: false)
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return self.read(url: url)
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}
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private func read(url: URL) -> User? {
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let path = url.path
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if FileManager.default.isReadableFile(atPath: path),
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let xml = FileManager.default.contents(atPath: path),
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let user = try? PropertyListDecoder().decode(User.self, from: xml)
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{
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return user
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}
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return nil
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}
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private var usersDirectory :URL {
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get {
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let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
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let usersDirectory = paths[0].appendingPathComponent("users", isDirectory: true)
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return usersDirectory
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}
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}
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private var userURLs :[URL] {
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get {
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do {
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return try FileManager.default.contentsOfDirectory(at: self.usersDirectory, includingPropertiesForKeys: nil, options: .skipsHiddenFiles)
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} catch {
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print("Error while enumerating files \(self.usersDirectory.path): \(error.localizedDescription)")
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}
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return []
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}
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}
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private func getURL(user: User) -> URL? {
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let userId = user.id
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return self.usersDirectory.appendingPathComponent(userId.uuidString, isDirectory: false)
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}
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private var usersIndexURL :URL {
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return self.usersDirectory.appendingPathComponent("users.idx", isDirectory: false)
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}
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private var userIndex: UserIndex? {
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get {
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let path = self.usersIndexURL.path
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if FileManager.default.isReadableFile(atPath: path),
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let xml = FileManager.default.contents(atPath: path),
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let userIndex = try? PropertyListDecoder().decode(UserIndex.self, from: xml)
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{
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return userIndex
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}
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return nil
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}
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set(userIndex) {
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let encoder = PropertyListEncoder()
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encoder.outputFormat = .xml
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do {
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let url = self.usersIndexURL
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let data = try encoder.encode(userIndex)
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try data.write(to: url)
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} catch {
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print(error)
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}
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}
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}
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}

‎Sources/MultiUser/Protocol/UserRepositoryProtocol.swift‎

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//
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// UserRepositoryProtocol.swift
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//
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//
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// Created by Sascha Müllner on 02.03.20.
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//
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import Foundation
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protocol UserRepositoryProtocol {
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func save(user: User)
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func delete(user: User)
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var all: [User] { get }
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var current: User? { get set }
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}

Sources/MultiUser/UserServiceProtocol.swift renamed to Sources/MultiUser/Protocol/UserServiceProtocol.swift

File renamed without changes.

‎Sources/MultiUser/User.swift‎

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This file was deleted.

‎Sources/MultiUser/UserService.swift‎

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class UserService : UserServiceProtocol {
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private var _currentUser :User?
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private var userRepository :UserRepositoryProtocol
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public init(userRepository :UserRepositoryProtocol) {
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self.userRepository = userRepository
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}
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public init() {
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self.userRepository = PropertyListUserRepository()
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}
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func create() -> User {
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let user = User()
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self.userRepository.save(user: user)
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return user
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}
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func save(user: User) {
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self.userRepository.save(user: user)
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}
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func delete(user: User) {
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if(current?.id == user.id) {
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current = nil
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}
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self.userRepository.delete(user: user)
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}
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var all: [User] {
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get {
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return []
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}
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return self.userRepository.all
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}
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var hasUsers: Bool {
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get {
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return self.all.count > 0
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}
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return self.all.count > 0
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}
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var current: User? {
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get {
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return _currentUser
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return self.userRepository.current
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}
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set(user) {
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_currentUser = user
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self.userRepository.current = user
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}
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}
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}

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