231 lines
8.9 KiB
Swift
231 lines
8.9 KiB
Swift
//
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// RealNameAuthViewModel.swift
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// suixinkan
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//
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// Created by Codex on 2026/6/22.
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//
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import Foundation
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@MainActor
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/// 实名认证 ViewModel，管理认证资料表单、审核状态、短信验证码和提交状态。
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final class RealNameAuthViewModel {
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var onChange: (() -> Void)?
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private(set) var info: RealNameInfo? { didSet { onChange?() } }
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var realName = "" { didSet { onChange?() } }
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var idCardNo = "" { didSet { onChange?() } }
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var smsCode = "" { didSet { onChange?() } }
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var startDate = Date() { didSet { onChange?() } }
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var endDate = Calendar.current.date(byAdding: .year, value: 10, to: Date()) ?? Date() { didSet { onChange?() } }
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var isLongValid = false { didSet { onChange?() } }
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var frontUrl = "" { didSet { onChange?() } }
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var backUrl = "" { didSet { onChange?() } }
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private(set) var pendingFrontImageData: Data? { didSet { onChange?() } }
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private(set) var pendingBackImageData: Data? { didSet { onChange?() } }
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private(set) var frontUploadProgress: Int? { didSet { onChange?() } }
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private(set) var backUploadProgress: Int? { didSet { onChange?() } }
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private var pendingFrontFileName: String?
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private var pendingBackFileName: String?
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private(set) var loading = false { didSet { onChange?() } }
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private(set) var sendingCode = false { didSet { onChange?() } }
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private(set) var submitting = false { didSet { onChange?() } }
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var statusMessage: String? { didSet { onChange?() } }
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/// 拉取实名认证信息，并回填表单。
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func load(api: ProfileAPI) async throws {
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guard !loading else { return }
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loading = true
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defer { loading = false }
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let response = try await api.realNameInfo()
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apply(response.realNameInfo)
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}
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/// 发送短信验证码。
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func sendCode(api: ProfileAPI) async throws {
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guard !sendingCode else { return }
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sendingCode = true
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defer { sendingCode = false }
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try await api.realNameSmsVerifyCode()
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statusMessage = "验证码已发送"
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}
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/// 准备待上传证件图片，并更新对应面的本地预览。
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func prepareIdentityImage(data: Data, side: RealNameImageSide, timestamp: TimeInterval = Date().timeIntervalSince1970) throws {
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let processed = try RealNameImageProcessor.process(data: data, side: side, timestamp: timestamp)
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switch side {
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case .front:
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pendingFrontImageData = processed.data
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pendingFrontFileName = processed.fileName
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frontUrl = ""
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case .back:
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pendingBackImageData = processed.data
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pendingBackFileName = processed.fileName
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backUrl = ""
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}
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}
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/// 提交实名认证资料，成功后刷新审核状态。
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func submit(api: ProfileAPI, uploader: any OSSUploadServing, scenicId: Int) async throws {
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if info?.verified == true {
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statusMessage = "已完成实名认证"
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return
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}
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if let validationMessage {
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throw RealNameValidationError.message(validationMessage)
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}
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submitting = true
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defer { submitting = false }
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try await uploadPendingIdentityImages(uploader: uploader, scenicId: scenicId)
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try await api.realNameSubmit(makeRequest())
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statusMessage = "已提交审核"
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try await load(api: api)
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}
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/// 根据审核状态生成展示文案。
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func auditStatusText(_ status: Int) -> String {
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switch status {
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case 1: "待审核"
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case 2: "审核通过"
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case 3: "审核不通过"
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default: "未认证"
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}
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}
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/// 当前表单校验错误，nil 表示可以提交。
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var validationMessage: String? {
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if realName.trimmed.isEmpty { return "请输入真实姓名" }
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if idCardNo.trimmed.isEmpty { return "请输入身份证号" }
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if !Self.isValidMainlandIDCardNumber(idCardNo) { return "请输入有效的身份证号" }
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if info?.verified != true {
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if smsCode.trimmed.isEmpty { return "请输入短信验证码" }
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if frontUrl.trimmed.isEmpty && pendingFrontImageData == nil { return "请选择身份证人像面图片" }
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if backUrl.trimmed.isEmpty && pendingBackImageData == nil { return "请选择身份证国徽面图片" }
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}
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if !isLongValid && endDate < startDate { return "证件结束日期不能早于起始日期" }
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return nil
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}
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/// 应用接口返回的实名认证信息。
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private func apply(_ info: RealNameInfo?) {
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self.info = info
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guard let info else { return }
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realName = info.realName
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idCardNo = info.idCardNo
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frontUrl = info.frontUrl ?? ""
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backUrl = info.backUrl ?? ""
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pendingFrontImageData = nil
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pendingBackImageData = nil
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pendingFrontFileName = nil
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pendingBackFileName = nil
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isLongValid = info.isLongValid
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startDate = Self.date(from: info.startDate) ?? startDate
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endDate = Self.date(from: info.endDate) ?? endDate
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}
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/// 生成提交请求。
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private func makeRequest() -> RealNameAuthRequest {
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RealNameAuthRequest(
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realName: realName.trimmed,
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idCardNo: Self.normalizedIDCardNumber(idCardNo),
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smsVerifyCode: smsCode.trimmed,
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startDate: Self.dateFormatter.string(from: startDate),
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endDate: isLongValid ? "" : Self.dateFormatter.string(from: endDate),
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isLongValid: isLongValid ? 1 : 0,
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frontUrl: frontUrl.trimmed,
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backUrl: backUrl.trimmed
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)
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}
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/// 规范化身份证号，去除空白并大写末位 X。
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nonisolated static func normalizedIDCardNumber(_ value: String) -> String {
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value.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
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}
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/// 校验大陆身份证号基础格式和校验位。
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nonisolated static func isValidMainlandIDCardNumber(_ value: String) -> Bool {
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let number = normalizedIDCardNumber(value)
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guard number.count == 18 else { return false }
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let chars = Array(number)
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guard chars.prefix(17).allSatisfy(\.isNumber) else { return false }
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guard chars[17].isNumber || chars[17] == "X" else { return false }
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let weights = [7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2]
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let checkCodes = Array("10X98765432")
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let sum = zip(chars.prefix(17), weights).reduce(0) { partial, pair in
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partial + (pair.0.wholeNumberValue ?? 0) * pair.1
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}
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return chars[17] == checkCodes[sum % 11]
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}
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private static let dateFormatter: DateFormatter = {
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let formatter = DateFormatter()
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formatter.calendar = Calendar(identifier: .gregorian)
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formatter.locale = Locale(identifier: "en_US_POSIX")
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formatter.dateFormat = "yyyy-MM-dd"
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return formatter
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}()
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/// 将 yyyy-MM-dd 文本解析为日期。
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private static func date(from value: String?) -> Date? {
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guard let value, !value.isEmpty else { return nil }
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return dateFormatter.date(from: value)
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}
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/// 上传待提交证件图片，并把返回 URL 写回表单字段。
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private func uploadPendingIdentityImages(uploader: any OSSUploadServing, scenicId: Int) async throws {
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if let pendingFrontImageData {
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frontUploadProgress = 1
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defer { frontUploadProgress = nil }
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frontUrl = try await uploader.uploadRealNameImage(
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data: pendingFrontImageData,
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fileName: pendingFrontFileName ?? "real_name_front_\(Int(Date().timeIntervalSince1970)).jpg",
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scenicId: scenicId
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) { [weak self] progress in
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Task { @MainActor in
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self?.frontUploadProgress = progress
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}
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}
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self.pendingFrontImageData = nil
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pendingFrontFileName = nil
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}
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if let pendingBackImageData {
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backUploadProgress = 1
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defer { backUploadProgress = nil }
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backUrl = try await uploader.uploadRealNameImage(
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data: pendingBackImageData,
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fileName: pendingBackFileName ?? "real_name_back_\(Int(Date().timeIntervalSince1970)).jpg",
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scenicId: scenicId
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) { [weak self] progress in
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Task { @MainActor in
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self?.backUploadProgress = progress
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}
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}
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self.pendingBackImageData = nil
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pendingBackFileName = nil
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}
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}
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}
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/// 实名认证校验错误实体，用于把表单错误统一抛给页面展示。
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enum RealNameValidationError: LocalizedError, Equatable {
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case message(String)
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var errorDescription: String? {
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switch self {
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case .message(let message):
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message
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}
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}
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}
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private extension String {
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/// 去除首尾空白后的文本。
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var trimmed: String {
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trimmingCharacters(in: .whitespacesAndNewlines)
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}
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}
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