76 lines
2.1 KiB
Swift
76 lines
2.1 KiB
Swift
//
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// LocalData.swift
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// Reader
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//
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// Created by Shadowfacts on 11/25/21.
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//
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import Foundation
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import Fervor
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import CryptoKit
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struct LocalData {
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private init() {}
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private static let encoder = JSONEncoder()
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private static let decoder = JSONDecoder()
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static var accounts: [Account] {
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get {
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guard let data = UserDefaults.standard.data(forKey: "accounts"),
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let accounts = try? decoder.decode([Account].self, from: data) else {
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return []
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}
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return accounts
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}
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set {
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let data = try! encoder.encode(newValue)
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UserDefaults.standard.set(data, forKey: "accounts")
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}
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}
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static var mostRecentAccountID: Data? {
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get {
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return UserDefaults.standard.data(forKey: "mostRecentAccountID")
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}
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set {
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UserDefaults.standard.set(newValue, forKey: "mostRecentAccountID")
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}
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}
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static func mostRecentAccount() -> Account? {
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guard let id = mostRecentAccountID else {
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return nil
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}
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return account(with: id)
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}
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static func account(with id: Data) -> Account? {
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return accounts.first(where: { $0.id == id })
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}
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struct Account: Codable {
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let id: Data
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let instanceURL: URL
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let clientID: String
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let clientSecret: String
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let token: Token
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init(instanceURL: URL, clientID: String, clientSecret: String, token: Token) {
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// we use a hash of instance host and account id rather than random ids so that
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// user activites can uniquely identify accounts across devices
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var hasher = SHA256()
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hasher.update(data: instanceURL.host!.data(using: .utf8)!)
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hasher.update(data: token.owner!.data(using: .utf8)!)
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self.id = Data(hasher.finalize())
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self.instanceURL = instanceURL
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self.clientID = clientID
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self.clientSecret = clientSecret
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self.token = token
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}
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}
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}
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