47 lines
1.3 KiB
Swift
47 lines
1.3 KiB
Swift
//
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// EmployeeCacheService.swift
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// EmployeeDirectory
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//
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// Created by Matt Bruce on 2/6/25.
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//
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import Foundation
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import UIKit
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/// A service that handles image caching using memory, disk, and network in priority order.
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public class EmployeeCacheService {
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private lazy var fileURL = cacheDirectory.appendingPathComponent("employees.json")
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// MARK: - Properties
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public static let shared = EmployeeCacheService() // Default shared instance
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/// Memory cache for storing images in RAM.
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private let emplyoees: Employees? = nil
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/// File manager for handling disk operations.
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private let fileManager = FileManager.default
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/// Directory where cached images are stored on disk.
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private let cacheDirectory: URL = {
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FileManager.default.urls(for: .cachesDirectory, in: .userDomainMask)[0]
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}()
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// MARK: - Initializer
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public init() {}
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public func save(from employees: Employees) throws {
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let data = try JSONEncoder().encode(employees)
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try data.write(to: fileURL)
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}
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public func load() throws -> Employees {
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let data = try Data(contentsOf: fileURL)
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return try JSONDecoder().decode(Employees.self, from: data)
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}
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public func clear() {
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try? FileManager.default.removeItem(at: fileURL)
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}
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}
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