添加提交任务流程并抽取资料编辑页

suixinkan/Features/Profile/ViewModels/ProfileEditViewModel.swift

@@ -0,0 +1,102 @@
+//
+//  ProfileEditViewModel.swift
+//  suixinkan
+//
+
+import Foundation
+
+/// 资料编辑页 ViewModel，负责头像与昵称的本地编辑与提交保存。
+final class ProfileEditViewModel {
+
+    private let initialNickname: String
+    private let initialAvatarURL: String
+
+    private(set) var editingNickname = ""
+    private(set) var pendingAvatarData: Data?
+    private(set) var pendingAvatarFileName: String?
+    private(set) var isSaving = false
+    private(set) var avatarUploadProgress: Int?
+
+    var onStateChange: (() -> Void)?
+
+    /// 当前展示用的远程头像 URL（未选择新图时使用初始值）。
+    var displayAvatarURL: String {
+        initialAvatarURL
+    }
+
+    /// 使用「我的」页当前展示的快照初始化编辑态。
+    init(nickname: String, avatarURL: String) {
+        initialNickname = nickname
+        initialAvatarURL = avatarURL
+        editingNickname = nickname == "未设置昵称" ? "" : nickname
+    }
+
+    func updateEditingNickname(_ value: String) {
+        editingNickname = value
+        notifyStateChange()
+    }
+
+    func prepareAvatarImage(data: Data, timestamp: TimeInterval = Date().timeIntervalSince1970) throws {
+        let processed = try AvatarImageProcessor.process(data: data, timestamp: timestamp)
+        pendingAvatarData = processed.data
+        pendingAvatarFileName = processed.fileName
+        notifyStateChange()
+    }
+
+    /// 提交昵称与头像变更；无变更时不请求网络。
+    func saveProfile(api: ProfileAPI, uploader: any OSSUploadServing, scenicId: Int) async throws {
+        let nextNickname = editingNickname.trimmingCharacters(in: .whitespacesAndNewlines)
+        guard !nextNickname.isEmpty else {
+            throw ProfileValidationError.emptyNickname
+        }
+
+        let nicknameChanged = nextNickname != initialNickname
+        let avatarChanged = pendingAvatarData != nil
+        guard nicknameChanged || avatarChanged else { return }
+
+        guard !isSaving else { return }
+        isSaving = true
+        avatarUploadProgress = avatarChanged ? 1 : nil
+        notifyStateChange()
+        defer {
+            isSaving = false
+            avatarUploadProgress = nil
+            notifyStateChange()
+        }
+
+        let uploadedAvatarURL = try await uploadPendingAvatarIfNeeded(uploader: uploader, scenicId: scenicId)
+        if let uploadedAvatarURL {
+            try await api.updateUserAvatarURL(uploadedAvatarURL)
+        }
+        if nicknameChanged {
+            try await api.updateUserInfo(nickname: nextNickname)
+        }
+
+        AppStore.shared.userName = nextNickname
+        if let uploadedAvatarURL {
+            AppStore.shared.avatar = uploadedAvatarURL
+        }
+
+        clearPendingAvatar()
+        NotificationCenter.default.post(name: NotificationName.userProfileDidUpdate, object: nil)
+    }
+
+    private func uploadPendingAvatarIfNeeded(uploader: any OSSUploadServing, scenicId: Int) async throws -> String? {
+        guard let pendingAvatarData else { return nil }
+        let fileName = pendingAvatarFileName ?? "avatar_\(Int(Date().timeIntervalSince1970)).jpg"
+        return try await uploader.uploadUserAvatar(data: pendingAvatarData, fileName: fileName, scenicId: scenicId) { [weak self] progress in
+            self?.avatarUploadProgress = progress
+            self?.notifyStateChange()
+        }
+    }
+
+    private func clearPendingAvatar() {
+        pendingAvatarData = nil
+        pendingAvatarFileName = nil
+        avatarUploadProgress = nil
+    }
+
+    private func notifyStateChange() {
+        onStateChange?()
+    }
+}