Files

76 lines
2.4 KiB
Swift

//
// KeychainMock.swift
//
//
// Created by NUT.TECH on 16.02.2023.
//
import Foundation
import WalletFoundation
final class KeychainMock: KeychainProtocol {
private enum KeychainMockLocals {
static let password = "PWD"
static let biometric = "BIO"
}
typealias Value = (value: String, password: String)
private var storage: [String: Value]
init(storage: [String: Value]? = nil) {
self.storage = storage ?? [:]
}
func exist(_ key: Key) -> Bool {
let commonKey = key.with(KeychainMockLocals.password)
return self.storage[commonKey.rawValue].isExist
}
func bioExist(_ key: Key) -> Bool {
let commonKey = key.with(KeychainMockLocals.biometric)
return self.storage[commonKey.rawValue] != nil
}
subscript(biometric key: Key) -> String? {
let commonKey = key.with(KeychainMockLocals.biometric).rawValue
let object = self.storage[commonKey]
return object?.value
}
subscript(key: Key, password password: String) -> String? {
get {
let commonKey = key.with(KeychainMockLocals.password).rawValue
let object = self.storage[commonKey]
return object?.password == password ? object?.value : nil
}
set {
self.update(key, password: password, newValue: newValue)
}
}
private func update(_ key: Key, password: String, newValue: String?) {
if let value = newValue {
self.updateStorage(key: key.with(KeychainMockLocals.password), password: password, value: value)
self.updateStorage(key: key.with(KeychainMockLocals.biometric), password: password, value: value)
} else {
self.updateStorage(key: key.with(KeychainMockLocals.password), password: password, value: nil)
self.updateStorage(key: key.with(KeychainMockLocals.biometric), password: password, value: nil)
}
}
private func updateStorage(key: Key, password: String, value: String?) {
let stringKey = key.rawValue
if self.storage[stringKey] != nil, self.storage[stringKey]?.password == password {
if let value {
self.storage[stringKey]?.value = value
} else {
self.storage.removeValue(forKey: stringKey)
}
} else if let value {
self.storage[stringKey] = Value(value: value, password: password)
}
}
}