52 lines
1.6 KiB
Swift
52 lines
1.6 KiB
Swift
//
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// PayPageConfigCache.swift
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// suixinkan
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//
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import Foundation
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/// 收款页品牌配置缓存协议，供 ViewModel 注入持久化实现或测试替身。
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protocol PayPageConfigCaching {
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/// 读取指定景区的品牌配置。
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func config(scenicId: Int) -> PayPageConfig?
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/// 保存指定景区的完整品牌配置。
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func save(_ config: PayPageConfig, scenicId: Int)
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}
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/// 使用 UserDefaults 按接口环境与景区隔离的收款页品牌配置缓存。
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final class PayPageConfigCache: PayPageConfigCaching {
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private static let version = "v1"
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private let defaults: UserDefaults
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private let environmentNamespace: String
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private let encoder = JSONEncoder()
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private let decoder = JSONDecoder()
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/// 使用指定持久化容器和 API 环境创建缓存。
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init(
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defaults: UserDefaults = .standard,
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environment: APIEnvironment = .current
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) {
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self.defaults = defaults
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environmentNamespace = environment.baseURL.host ?? environment.baseURL.absoluteString
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}
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func config(scenicId: Int) -> PayPageConfig? {
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guard scenicId > 0,
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let data = defaults.data(forKey: key(scenicId: scenicId)) else {
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return nil
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}
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return try? decoder.decode(PayPageConfig.self, from: data)
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}
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func save(_ config: PayPageConfig, scenicId: Int) {
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guard scenicId > 0, let data = try? encoder.encode(config) else { return }
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defaults.set(data, forKey: key(scenicId: scenicId))
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}
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private func key(scenicId: Int) -> String {
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"payment.pay_page_config.\(Self.version).\(environmentNamespace).\(scenicId)"
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}
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}
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