refactor(ui): 用复制助手替代手写重写，并让单测文件真正进入 CI

GdeiAssistant-iOS/Features/Express/Models/ExpressModels.swift

@@ -58,3 +58,32 @@ struct ExpressDraft: Codable {
     let content: String
     let targetGender: ExpressGender
 }
+
+extension ExpressPost {
+    /// A copy with only the given counters changed. Both the mock repository and the view
+    /// model apply the same optimistic updates, so adding a field must not require editing
+    /// six full memberwise constructions.
+    func with(
+        likeCount: Int? = nil,
+        commentCount: Int? = nil,
+        guessCount: Int? = nil,
+        correctGuessCount: Int? = nil,
+        isLiked: Bool? = nil
+    ) -> ExpressPost {
+        ExpressPost(
+            id: id,
+            nickname: nickname,
+            targetName: targetName,
+            contentPreview: contentPreview,
+            publishTime: publishTime,
+            likeCount: likeCount ?? self.likeCount,
+            commentCount: commentCount ?? self.commentCount,
+            guessCount: guessCount ?? self.guessCount,
+            correctGuessCount: correctGuessCount ?? self.correctGuessCount,
+            isLiked: isLiked ?? self.isLiked,
+            canGuess: canGuess,
+            selfGender: selfGender,
+            targetGender: targetGender
+        )
+    }
+}

GdeiAssistant-iOS/Features/Express/Repositories/MockExpressRepository.swift

@@ -102,63 +102,22 @@ final class MockExpressRepository: ExpressRepository {
         comments[postID, default: []].insert(item, at: 0)
         if let index = posts.firstIndex(where: { $0.id == postID }) {
             let post = posts[index]
-            posts[index] = ExpressPost(
-                id: post.id,
-                nickname: post.nickname,
-                targetName: post.targetName,
-                contentPreview: post.contentPreview,
-                publishTime: post.publishTime,
-                likeCount: post.likeCount,
-                commentCount: post.commentCount + 1,
-                guessCount: post.guessCount,
-                correctGuessCount: post.correctGuessCount,
-                isLiked: post.isLiked,
-                canGuess: post.canGuess,
-                selfGender: post.selfGender,
-                targetGender: post.targetGender
-            )
+            posts[index] = post.with(commentCount: post.commentCount + 1)
         }
     }
 
     func like(postID: String) async throws {
         guard let index = posts.firstIndex(where: { $0.id == postID }) else { return }
         let post = posts[index]
-        posts[index] = ExpressPost(
-            id: post.id,
-            nickname: post.nickname,
-            targetName: post.targetName,
-            contentPreview: post.contentPreview,
-            publishTime: post.publishTime,
-            likeCount: post.likeCount + (post.isLiked ? 0 : 1),
-            commentCount: post.commentCount,
-            guessCount: post.guessCount,
-            correctGuessCount: post.correctGuessCount,
-            isLiked: true,
-            canGuess: post.canGuess,
-            selfGender: post.selfGender,
-            targetGender: post.targetGender
-        )
+        posts[index] = post.with(likeCount: post.likeCount + (post.isLiked ? 0 : 1), isLiked: true)
     }
 
     func guess(postID: String, name: String) async throws -> Bool {
         let matched = name.trimmingCharacters(in: .whitespacesAndNewlines) == localizedString("mock.express.detail.realName")
         if let index = posts.firstIndex(where: { $0.id == postID }) {
             let post = posts[index]
-            posts[index] = ExpressPost(
-                id: post.id,
-                nickname: post.nickname,
-                targetName: post.targetName,
-                contentPreview: post.contentPreview,
-                publishTime: post.publishTime,
-                likeCount: post.likeCount,
-                commentCount: post.commentCount,
-                guessCount: post.guessCount + 1,
-                correctGuessCount: post.correctGuessCount + (matched ? 1 : 0),
-                isLiked: post.isLiked,
-                canGuess: post.canGuess,
-                selfGender: post.selfGender,
-                targetGender: post.targetGender
-            )
+            posts[index] = post.with(guessCount: post.guessCount + 1,
+                correctGuessCount: post.correctGuessCount + (matched ? 1 : 0))
         }
         return matched
     }

GdeiAssistant-iOS/Features/Express/ViewModels/ExpressViewModel.swift

@@ -46,64 +46,23 @@ final class ExpressViewModel: ObservableObject {
     func submitComment(postID: String, content: String) async throws {
         try await repository.submitComment(postID: postID, content: content)
         updatePost(postID: postID) { post in
-            ExpressPost(
-                id: post.id,
-                nickname: post.nickname,
-                targetName: post.targetName,
-                contentPreview: post.contentPreview,
-                publishTime: post.publishTime,
-                likeCount: post.likeCount,
-                commentCount: post.commentCount + 1,
-                guessCount: post.guessCount,
-                correctGuessCount: post.correctGuessCount,
-                isLiked: post.isLiked,
-                canGuess: post.canGuess,
-                selfGender: post.selfGender,
-                targetGender: post.targetGender
-            )
+            post.with(commentCount: post.commentCount + 1)
         }
     }
 
     func like(postID: String) async throws {
         try await repository.like(postID: postID)
         if let index = posts.firstIndex(where: { $0.id == postID }) {
             let post = posts[index]
-            posts[index] = ExpressPost(
-                id: post.id,
-                nickname: post.nickname,
-                targetName: post.targetName,
-                contentPreview: post.contentPreview,
-                publishTime: post.publishTime,
-                likeCount: post.likeCount + (post.isLiked ? 0 : 1),
-                commentCount: post.commentCount,
-                guessCount: post.guessCount,
-                correctGuessCount: post.correctGuessCount,
-                isLiked: true,
-                canGuess: post.canGuess,
-                selfGender: post.selfGender,
-                targetGender: post.targetGender
-            )
+            posts[index] = post.with(likeCount: post.likeCount + (post.isLiked ? 0 : 1), isLiked: true)
         }
     }
 
     func guess(postID: String, name: String) async throws -> Bool {
         let matched = try await repository.guess(postID: postID, name: name)
         updatePost(postID: postID) { post in
-            ExpressPost(
-                id: post.id,
-                nickname: post.nickname,
-                targetName: post.targetName,
-                contentPreview: post.contentPreview,
-                publishTime: post.publishTime,
-                likeCount: post.likeCount,
-                commentCount: post.commentCount,
-                guessCount: post.guessCount + 1,
-                correctGuessCount: post.correctGuessCount + (matched ? 1 : 0),
-                isLiked: post.isLiked,
-                canGuess: post.canGuess,
-                selfGender: post.selfGender,
-                targetGender: post.targetGender
-            )
+            post.with(guessCount: post.guessCount + 1,
+                correctGuessCount: post.correctGuessCount + (matched ? 1 : 0))
         }
         return matched
     }

GdeiAssistant-iOS/Features/Marketplace/Models/MarketplaceModels.swift

@@ -101,3 +101,68 @@ struct MarketplaceUpdateDraft: Codable {
     let qq: String
     let phone: String?
 }
+
+extension MarketplaceItem {
+    /// The single place that enumerates every stored field when copying an item.
+    /// `nil` means "keep the current value"; optional fields can only be replaced with a
+    /// non-nil value here. Reconstructing the struct by hand silently dropped `typeID`,
+    /// so an edited item kept showing its old category.
+    func with(
+        title: String? = nil,
+        price: Double? = nil,
+        summary: String? = nil,
+        sellerName: String? = nil,
+        sellerAvatarURL: String? = nil,
+        authorId: String? = nil,
+        postedAt: String? = nil,
+        location: String? = nil,
+        state: MarketplaceItemState? = nil,
+        tags: [String]? = nil,
+        previewImageURL: String? = nil,
+        typeID: Int? = nil
+    ) -> MarketplaceItem {
+        MarketplaceItem(
+            id: id,
+            title: title ?? self.title,
+            price: price ?? self.price,
+            summary: summary ?? self.summary,
+            sellerName: sellerName ?? self.sellerName,
+            sellerAvatarURL: sellerAvatarURL ?? self.sellerAvatarURL,
+            authorId: authorId ?? self.authorId,
+            postedAt: postedAt ?? self.postedAt,
+            location: location ?? self.location,
+            state: state ?? self.state,
+            tags: tags ?? self.tags,
+            previewImageURL: previewImageURL ?? self.previewImageURL,
+            typeID: typeID ?? self.typeID
+        )
+    }
+}
+
+extension MarketplaceDetail {
+    /// The single place that enumerates every stored field when copying a detail.
+    /// `nil` means "keep the current value". Reconstructing by hand silently reset
+    /// `ownedByCurrentUser`, which controls whether the owner sees the edit actions.
+    func with(
+        item: MarketplaceItem? = nil,
+        condition: String? = nil,
+        description: String? = nil,
+        contactHint: String? = nil,
+        imageURLs: [String]? = nil,
+        ownedByCurrentUser: Bool? = nil
+    ) -> MarketplaceDetail {
+        MarketplaceDetail(
+            item: item ?? self.item,
+            condition: condition ?? self.condition,
+            description: description ?? self.description,
+            contactHint: contactHint ?? self.contactHint,
+            sellerUsername: sellerUsername,
+            sellerNickname: sellerNickname,
+            sellerCollege: sellerCollege,
+            sellerMajor: sellerMajor,
+            sellerGrade: sellerGrade,
+            imageURLs: imageURLs ?? self.imageURLs,
+            ownedByCurrentUser: ownedByCurrentUser ?? self.ownedByCurrentUser
+        )
+    }
+}

GdeiAssistant-iOS/Features/Marketplace/Repositories/MockMarketplaceRepository.swift

@@ -107,67 +107,32 @@ final class MockMarketplaceRepository: MarketplaceRepository {
             throw NetworkError.server(code: 404, message: localizedString("marketplace.itemNotFound"))
         }
         let contactHintParts = contactHintParts(qq: draft.qq, phone: draft.phone)
-        let updatedItem = MarketplaceItem(
-            id: detail.item.id,
+        let category = MarketplaceRemoteMapper.displayName(forType: draft.typeID)
+        let updatedItem = detail.item.with(
             title: draft.title,
             price: draft.price,
             summary: RemoteMapperSupport.truncated(draft.description, limit: 28),
-            sellerName: detail.item.sellerName,
-            sellerAvatarURL: detail.item.sellerAvatarURL,
-            authorId: detail.item.authorId,
             postedAt: "刚刚修改",
             location: draft.location,
-            state: detail.item.state,
-            tags: [MarketplaceRemoteMapper.displayName(forType: draft.typeID)],
-            previewImageURL: detail.item.previewImageURL
+            tags: [category],
+            typeID: draft.typeID
         )
-        detailsByID[itemID] = MarketplaceDetail(
+        detailsByID[itemID] = detail.with(
             item: updatedItem,
-            condition: MarketplaceRemoteMapper.displayName(forType: draft.typeID),
+            condition: category,
             description: draft.description,
-            contactHint: contactHintParts.joined(separator: " / "),
-            sellerUsername: detail.sellerUsername,
-            sellerNickname: detail.sellerNickname,
-            sellerCollege: detail.sellerCollege,
-            sellerMajor: detail.sellerMajor,
-            sellerGrade: detail.sellerGrade,
-            imageURLs: detail.imageURLs
+            contactHint: contactHintParts.joined(separator: " / ")
         )
         syncItem(updatedItem)
     }
 
     func updateItemState(itemID: String, state: MarketplaceItemState) async throws {
-        guard var detail = detailsByID[itemID] else {
+        guard let detail = detailsByID[itemID] else {
             throw NetworkError.server(code: 404, message: localizedString("marketplace.itemNotFound"))
         }
 
-        let updatedItem = MarketplaceItem(
-            id: detail.item.id,
-            title: detail.item.title,
-            price: detail.item.price,
-            summary: detail.item.summary,
-            sellerName: detail.item.sellerName,
-            sellerAvatarURL: detail.item.sellerAvatarURL,
-            authorId: detail.item.authorId,
-            postedAt: detail.item.postedAt,
-            location: detail.item.location,
-            state: state,
-            tags: detail.item.tags,
-            previewImageURL: detail.item.previewImageURL
-        )
-        detail = MarketplaceDetail(
-            item: updatedItem,
-            condition: detail.condition,
-            description: detail.description,
-            contactHint: detail.contactHint,
-            sellerUsername: detail.sellerUsername,
-            sellerNickname: detail.sellerNickname,
-            sellerCollege: detail.sellerCollege,
-            sellerMajor: detail.sellerMajor,
-            sellerGrade: detail.sellerGrade,
-            imageURLs: detail.imageURLs
-        )
-        detailsByID[itemID] = detail
+        let updatedItem = detail.item.with(state: state)
+        detailsByID[itemID] = detail.with(item: updatedItem)
         syncItem(updatedItem)
     }
 

GdeiAssistant-iOS/Features/Marketplace/Repositories/RemoteMarketplaceRepository.swift

@@ -38,32 +38,9 @@ final class RemoteMarketplaceRepository: MarketplaceRepository {
             return detail
         }
 
-        return MarketplaceDetail(
-            item: MarketplaceItem(
-                id: detail.item.id,
-                title: detail.item.title,
-                price: detail.item.price,
-                summary: detail.item.summary,
-                sellerName: detail.item.sellerName,
-                sellerAvatarURL: detail.item.sellerAvatarURL,
-                authorId: detail.item.authorId,
-                postedAt: detail.item.postedAt,
-                location: detail.item.location,
-                state: detail.item.state,
-                tags: detail.item.tags,
-                previewImageURL: detail.item.previewImageURL ?? previewURL,
-                typeID: detail.item.typeID
-            ),
-            condition: detail.condition,
-            description: detail.description,
-            contactHint: detail.contactHint,
-            sellerUsername: detail.sellerUsername,
-            sellerNickname: detail.sellerNickname,
-            sellerCollege: detail.sellerCollege,
-            sellerMajor: detail.sellerMajor,
-            sellerGrade: detail.sellerGrade,
-            imageURLs: [previewURL],
-            ownedByCurrentUser: detail.ownedByCurrentUser
+        return detail.with(
+            item: detail.item.with(previewImageURL: detail.item.previewImageURL ?? previewURL),
+            imageURLs: [previewURL]
         )
     }