fix cache

dimensionhub/Core/API.swift

@@ -118,8 +118,8 @@ struct API {
             }
             
             print("request url: \(request.url!.absoluteString)")
-//            let x = String(data: data, encoding: .utf8)!
+            let x = String(data: data, encoding: .utf8)!
-//            print("url: \(request.url!.path()), data is: \(x)")
+            print("url: \(request.url!.path()), data is: \(x)")
             do {
                 let result = try JSONDecoder().decode(APISuccessResponse<T>.self, from: data)
                 return .result(result.result)

dimensionhub/Core/CacheManager.swift

@@ -23,6 +23,10 @@ final class CacheManager {
     func preloadImages(urls: [String]) async throws {
         let preloadUrls =  urls.filter { url in !self.fileExists(urlString: url)}
         
+        guard preloadUrls.count > 0 else {
+            return
+        }
+        
         // 批量异步加载
         try await withThrowingTaskGroup(of: Void.self) { group in
             for url in preloadUrls {

dimensionhub/Views/Index/IndexMainView.swift

@@ -142,22 +142,6 @@ struct IndexMainView: View {
         .onPreferenceChange(DramaGroupElementPreferenceKey.self) { frames in
             indexModel.visiblePublisher.send(frames)
         }
-        .onAppear {
-            Task {
-                let imageUrl = "https://lain.bgm.tv/pic/cover/l/ea/c4/479788_3pcsw.jpg"
-                let cacheManager = CacheManager.shared
-                
-                try await cacheManager.preloadImages(urls: [imageUrl])
-                
-                let result = cacheManager.fileExists(urlString: imageUrl)
-                print("cache file exists: \(result)")
-                
-                print("data: ")
-                print(cacheManager.readFileContents(urlString: imageUrl))
-                
-            }
-            
-        }
     }
     
 }

dimensionhub/Views/Index/IndexModel.swift

@@ -129,6 +129,8 @@ final class IndexModel {
         case .error(let code, let message):
             print("index load data get error_code: \(code), message: \(message)")
         case .result(let result):
+            preloadGroupImages(groups: result.update_dramas)
+            
             await MainActor.run {
                 self.updateDramaGroups = result.update_dramas
                 self.fixedDramaGroup = result.update_dramas.first
@@ -162,6 +164,7 @@ final class IndexModel {
                 let response = await API.loadMoreUpdateDramas(userId: userId, mode: mode, id: firstId, as: [UpdateDramaGroup].self)
                 if case let .result(groups) = response {
                     if groups.count > 0 {
+                        preloadGroupImages(groups: groups)
                         
                         displayDramaGroups(self.updateDramaGroups, label: "before")
                         await MainActor.run {
@@ -178,6 +181,8 @@ final class IndexModel {
                 let response = await API.loadMoreUpdateDramas(userId: userId, mode: mode, id: lastId, as: [UpdateDramaGroup].self)
                 if case let .result(groups) = response {
                     if groups.count > 0 {
+                        preloadGroupImages(groups: groups)
+                        
                         displayDramaGroups(self.updateDramaGroups, label: "before")
                         await MainActor.run {
                             self.updateDramaGroups = appendMergeDramaGroups(groups: self.updateDramaGroups, mergeGroups: groups)
@@ -197,6 +202,8 @@ final class IndexModel {
         self.updateDramaGroups.removeAll()
         let response = await API.loadDateUpdateDramas(userId: userId, date: date, as: [UpdateDramaGroup].self)
         if case let .result(groups) = response {
+            preloadGroupImages(groups: groups)
+            
             await MainActor.run {
                 self.updateDramaGroups = groups
                 self.fixedDramaGroup = groups.first
@@ -239,6 +246,21 @@ final class IndexModel {
         return sortDramaGroups(groups: targetGroups)
     }
     
+    // 预加载图片信息
+    private func preloadGroupImages(groups: [UpdateDramaGroup]) {
+        let urls = groups.flatMap { group in
+            return group.items.map {item in item.thumb}
+        }
+        
+        guard urls.count > 0 else {
+            return
+        }
+        
+        Task.detached {
+            try? await CacheManager.shared.preloadImages(urls: urls)
+        }
+    }
+    
     // 按照日期进行排序
     private func sortDramaGroups(groups: [UpdateDramaGroup]) -> [UpdateDramaGroup] {
         return groups.sorted { g0, g1 in