feat: add AI retouch task center

suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumAIJobViewModels.swift

@@ -0,0 +1,144 @@
+import Foundation
+
+/// AI 修图任务列表状态，负责筛选、游标分页、去重和静默刷新。
+final class TravelAlbumAIJobListViewModel {
+    private(set) var items: [TravelAlbumAIJobSummary] = []
+    private(set) var selectedFilter: TravelAlbumAIJobFilter = .all
+    private(set) var isLoading = false
+    private(set) var isRefreshing = false
+    private(set) var isLoadingMore = false
+    private(set) var errorMessage: String?
+    private var nextCursor: String?
+    private var hasMore = false
+
+    var onStateChange: (() -> Void)?
+    var onShowMessage: ((String) -> Void)?
+
+    var containsInProgressJobs: Bool { items.contains { $0.status.isInProgress } }
+    var canLoadMore: Bool { hasMore && !isLoadingMore }
+
+    /// 选择筛选项并重新加载第一页。
+    func selectFilter(_ filter: TravelAlbumAIJobFilter, api: any TravelAlbumServing) async {
+        guard selectedFilter != filter else { return }
+        selectedFilter = filter
+        items = []
+        notify()
+        await loadFirstPage(api: api)
+    }
+
+    /// 首次加载或下拉刷新第一页。
+    func loadFirstPage(api: any TravelAlbumServing, refreshing: Bool = false, silent: Bool = false) async {
+        guard !isLoading && !isRefreshing else { return }
+        if refreshing { isRefreshing = true } else if !silent { isLoading = true }
+        errorMessage = nil
+        notify()
+        defer {
+            isLoading = false
+            isRefreshing = false
+            notify()
+        }
+        await request(cursor: nil, reset: true, api: api, allowCursorRecovery: false, silent: silent)
+    }
+
+    /// 加载下一页。
+    func loadMore(api: any TravelAlbumServing) async {
+        guard canLoadMore, let cursor = nextCursor else { return }
+        isLoadingMore = true
+        notify()
+        defer { isLoadingMore = false; notify() }
+        await request(cursor: cursor, reset: false, api: api, allowCursorRecovery: true, silent: false)
+    }
+
+    private func request(
+        cursor: String?,
+        reset: Bool,
+        api: any TravelAlbumServing,
+        allowCursorRecovery: Bool,
+        silent: Bool
+    ) async {
+        do {
+            let response = try await api.aiRetouchJobList(
+                statusGroup: selectedFilter,
+                limit: 20,
+                cursor: cursor
+            )
+            if reset {
+                items = response.items
+            } else {
+                var known = Set(items.map(\.id))
+                items += response.items.filter { known.insert($0.id).inserted }
+            }
+            nextCursor = response.nextCursor
+            hasMore = response.hasMore && response.nextCursor?.isEmpty == false
+            errorMessage = nil
+        } catch is CancellationError {
+            return
+        } catch {
+            let message = error.localizedDescription
+            if allowCursorRecovery && message.localizedCaseInsensitiveContains("cursor") {
+                nextCursor = nil
+                hasMore = false
+                await request(cursor: nil, reset: true, api: api, allowCursorRecovery: false, silent: silent)
+                return
+            }
+            if items.isEmpty { errorMessage = message.isEmpty ? "任务加载失败" : message }
+            if !silent { onShowMessage?(message.isEmpty ? "任务加载失败" : message) }
+        }
+    }
+
+    private func notify() { onStateChange?() }
+}
+
+/// AI 修图任务详情状态，负责刷新、404 识别和终态判断。
+final class TravelAlbumAIJobDetailViewModel {
+    private(set) var detail: TravelAlbumAIJobDetail?
+    private(set) var isLoading = false
+    private(set) var isRefreshing = false
+    private(set) var errorMessage: String?
+    private(set) var isNotFound = false
+
+    let batchId: Int
+    var onStateChange: (() -> Void)?
+    var onShowMessage: ((String) -> Void)?
+    var onNotFound: (() -> Void)?
+
+    init(batchId: Int) { self.batchId = batchId }
+
+    var shouldPoll: Bool { detail?.status.isInProgress == true }
+
+    /// 拉取任务详情；静默刷新失败时保留现有内容。
+    func load(api: any TravelAlbumServing, refreshing: Bool = false, silent: Bool = false) async {
+        guard batchId > 0, !isLoading && !isRefreshing else {
+            if batchId <= 0 { markNotFound() }
+            return
+        }
+        if refreshing { isRefreshing = true } else if detail == nil && !silent { isLoading = true }
+        errorMessage = nil
+        notify()
+        defer {
+            isLoading = false
+            isRefreshing = false
+            notify()
+        }
+        do {
+            detail = try await api.aiRetouchJobInfo(batchId: batchId)
+            isNotFound = false
+        } catch is CancellationError {
+            return
+        } catch APIError.httpStatus(let status, _) where status == 404 {
+            markNotFound()
+        } catch {
+            let message = error.localizedDescription.isEmpty ? "任务详情加载失败" : error.localizedDescription
+            if detail == nil { errorMessage = message }
+            if !silent { onShowMessage?(message) }
+        }
+    }
+
+    private func markNotFound() {
+        guard !isNotFound else { return }
+        isNotFound = true
+        onNotFound?()
+    }
+
+    private func notify() { onStateChange?() }
+}

suixinkan/Features/TravelAlbum/ViewModels/TravelAlbumAIRetouchTemplateViewModel.swift

@@ -23,7 +23,7 @@ final class TravelAlbumAIRetouchTemplateViewModel {
 
     var onStateChange: (() -> Void)?
     var onShowMessage: ((String) -> Void)?
-    var onSubmitted: (() -> Void)?
+    var onSubmitted: ((TravelAlbumAIJobSubmission) -> Void)?
 
     /// 创建首次 AI 修图模板状态；素材 ID 会排序并去重，确保提交稳定。
     convenience init(albumId: Int, scenicId: Int, materialIds: [Int]) {
@@ -217,13 +217,14 @@ final class TravelAlbumAIRetouchTemplateViewModel {
         }
 
         do {
+            let submission: TravelAlbumAIJobSubmission
             switch workflow {
             case .initial(let albumId, let materialIds):
                 guard let refinedTemplateId = selectedRefinedTemplateId else {
                     onShowMessage?("请选择原图精修模板")
                     return
                 }
-                try await api.submitAIRetouch(
+                submission = try await api.submitAIRetouch(
                     TravelAlbumAIRetouchRequest(
                         userEquityTravelId: albumId,
                         materialIds: materialIds,
@@ -233,7 +234,7 @@ final class TravelAlbumAIRetouchTemplateViewModel {
                     )
                 )
             case .reretouch(let materialId, let batchId, let type):
-                try await api.submitAIReretouch(
+                submission = try await api.submitAIReretouch(
                     TravelAlbumAIReretouchRequest(
                         id: materialId,
                         aiRetouchBatchId: batchId,
@@ -243,7 +244,7 @@ final class TravelAlbumAIRetouchTemplateViewModel {
                     )
                 )
             }
-            onSubmitted?()
+            onSubmitted?(submission)
         } catch is CancellationError {
             return
         } catch {