238 lines
8.1 KiB
Swift
238 lines
8.1 KiB
Swift
//
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// SubscriptionConverter.swift
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// StoreKit2Manager
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//
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// Created by xiaopin on 2025/12/6.
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//
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import Foundation
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import StoreKit
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/// 订阅相关转换器
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/// 将订阅相关的对象转换为可序列化的基础数据类型（Dictionary/JSON）
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public struct SubscriptionConverter {
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// MARK: - SubscriptionInfo
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/// 将 SubscriptionInfo 转换为 Dictionary（同步版本，不包含异步属性）
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/// - Parameters:
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/// - subscription: SubscriptionInfo 对象
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/// - product: 关联的 Product 对象（可选）
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/// - Returns: Dictionary 对象
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public static func subscriptionInfoToDictionary(_ subscription: Product.SubscriptionInfo, product: Product? = nil) -> [String: Any] {
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var dict: [String: Any] = [:]
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// 订阅组ID
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dict["subscriptionGroupID"] = subscription.subscriptionGroupID
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// 订阅周期
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dict["subscriptionPeriodCount"] = subscription.subscriptionPeriod.value
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dict["subscriptionPeriodUnit"] = subscriptionPeriodUnitToString(subscription.subscriptionPeriod.unit)
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// 介绍性优惠（如果有）
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if let introOffer = subscription.introductoryOffer {
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dict["introductoryOffer"] = subscriptionOfferToDictionary(introOffer)
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} else {
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dict["introductoryOffer"] = NSNull()
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}
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// 促销优惠列表
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dict["promotionalOffers"] = subscription.promotionalOffers.map { subscriptionOfferToDictionary($0) }
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// 赢回优惠列表（iOS 18.0+）
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if #available(iOS 18.0, macOS 15.0, tvOS 18.0, watchOS 11.0, visionOS 2.0, *) {
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dict["winBackOffers"] = subscription.winBackOffers.map { subscriptionOfferToDictionary($0) }
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} else {
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dict["winBackOffers"] = []
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}
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return dict
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}
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// MARK: - RenewalInfo
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/// 将 RenewalInfo 转换为 Dictionary
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/// - Parameter renewalInfo: RenewalInfo 对象
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/// - Returns: Dictionary 对象
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public static func renewalInfoToDictionary(_ renewalInfo: Product.SubscriptionInfo.RenewalInfo) -> [String: Any] {
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var dict: [String: Any] = [:]
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// 是否自动续订
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dict["willAutoRenew"] = renewalInfo.willAutoRenew
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// 续订日期（如果有）
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if let renewalDate = renewalInfo.renewalDate {
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dict["renewalDate"] = dateToTimestamp(renewalDate)
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} else {
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dict["renewalDate"] = NSNull()
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}
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// 过期原因（如果有）
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if let expirationReason = renewalInfo.expirationReason {
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dict["expirationReason"] = expirationReasonToString(expirationReason)
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} else {
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dict["expirationReason"] = NSNull()
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}
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// 注意：过期日期（expirationDate）不在 RenewalInfo 中，需要从 Transaction 中获取
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return dict
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}
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/// 将 RenewalInfo 转换为 JSON 字符串
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/// - Parameter renewalInfo: RenewalInfo 对象
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/// - Returns: JSON 字符串
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public static func renewalInfoToJSONString(_ renewalInfo: Product.SubscriptionInfo.RenewalInfo) -> String? {
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let dict = renewalInfoToDictionary(renewalInfo)
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return dictionaryToJSONString(dict)
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}
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// MARK: - RenewalState
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/// 将 RenewalState 转换为字符串
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/// - Parameter state: RenewalState 对象
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/// - Returns: 字符串
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public static func renewalStateToString(_ state: Product.SubscriptionInfo.RenewalState) -> String {
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switch state {
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case .subscribed:
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return "subscribed"
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case .expired:
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return "expired"
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case .inBillingRetryPeriod:
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return "inBillingRetryPeriod"
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case .inGracePeriod:
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return "inGracePeriod"
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case .revoked:
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return "revoked"
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default:
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return "unknown"
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}
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}
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// MARK: - SubscriptionPeriod
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/// 将 SubscriptionPeriod 转换为 Dictionary
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/// - Parameter period: SubscriptionPeriod 对象
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/// - Returns: Dictionary 对象
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public static func subscriptionPeriodToDictionary(_ period: Product.SubscriptionPeriod) -> [String: Any] {
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var dict: [String: Any] = [:]
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dict["value"] = period.value
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dict["unit"] = subscriptionPeriodUnitToString(period.unit)
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return dict
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}
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// MARK: - SubscriptionOffer
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/// 将 SubscriptionOffer 转换为 Dictionary
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/// - Parameter offer: SubscriptionOffer 对象
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/// - Returns: Dictionary 对象
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private static func subscriptionOfferToDictionary(_ offer: Product.SubscriptionOffer) -> [String: Any] {
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var dict: [String: Any] = [:]
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// 优惠ID（介绍性优惠为 nil，确保是字符串类型）
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if let offerID = offer.id {
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dict["id"] = offerID
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} else {
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dict["id"] = NSNull()
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}
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// 优惠类型
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dict["type"] = subscriptionOfferTypeToString(offer.type)
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// 价格信息（确保是字符串类型）
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dict["displayPrice"] = String(describing: offer.displayPrice)
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dict["price"] = Double(String(format: "%.2f", NSDecimalNumber(decimal: offer.price).doubleValue)) ?? NSDecimalNumber(decimal: offer.price).doubleValue
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// 支付模式
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dict["paymentMode"] = paymentModeToString(offer.paymentMode)
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// 优惠周期
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dict["periodCount"] = offer.period.value
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dict["periodUnit"] = subscriptionPeriodUnitToString(offer.period.unit)
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// 周期数量
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dict["offerPeriodCount"] = offer.periodCount
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return dict
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}
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// MARK: - 私有方法
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/// 日期转时间戳（毫秒）
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private static func dateToTimestamp(_ date: Date) -> Int64 {
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return Int64(date.timeIntervalSince1970 * 1000)
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}
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/// 订阅周期单位转字符串
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private static func subscriptionPeriodUnitToString(_ unit: Product.SubscriptionPeriod.Unit) -> String {
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switch unit {
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case .day:
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return "day"
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case .week:
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return "week"
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case .month:
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return "month"
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case .year:
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return "year"
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@unknown default:
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return "unknown"
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}
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}
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/// 优惠类型转字符串
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private static func subscriptionOfferTypeToString(_ type: Product.SubscriptionOffer.OfferType) -> String {
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switch type {
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case .introductory:
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return "introductory"
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case .promotional:
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return "promotional"
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default:
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if #available(iOS 18.0, macOS 15.0, tvOS 18.0, watchOS 11.0, visionOS 2.0, *) {
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if type == .winBack {
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return "winBack"
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}
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}
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return "unknown"
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}
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}
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/// 支付模式转字符串
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private static func paymentModeToString(_ mode: Product.SubscriptionOffer.PaymentMode) -> String {
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switch mode {
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case .freeTrial:
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return "freeTrial"
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case .payAsYouGo:
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return "payAsYouGo"
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case .payUpFront:
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return "payUpFront"
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default:
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return "unknown"
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}
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}
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/// 过期原因转字符串
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private static func expirationReasonToString(_ reason: Product.SubscriptionInfo.RenewalInfo.ExpirationReason) -> String {
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// ExpirationReason 的具体枚举值可能因 iOS 版本而异
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// 使用 String(describing:) 作为后备方案
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let reasonString = String(describing: reason)
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// 移除命名空间前缀，只保留枚举值名称
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if let lastDot = reasonString.lastIndex(of: ".") {
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let value = String(reasonString[reasonString.index(after: lastDot)...])
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return value
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}
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return reasonString
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}
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/// Dictionary 转 JSON 字符串
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private static func dictionaryToJSONString(_ dict: [String: Any]) -> String? {
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guard let jsonData = try? JSONSerialization.data(withJSONObject: dict, options: .prettyPrinted),
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let jsonString = String(data: jsonData, encoding: .utf8) else {
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return nil
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}
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return jsonString
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}
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}
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