update code level

src/models.rs

@@ -34,7 +34,7 @@ pub struct AlbumWithImages {
     pub image_count: i64,
 }
 
-#[derive(Debug, Serialize, Deserialize)]
+#[derive(Debug, Serialize, Deserialize, Clone)]
 pub struct AlbumInfo {
     pub id: Uuid,
     pub title: String,
@@ -91,4 +91,86 @@ pub struct FavoriteWithImage {
 pub struct FavoriteStatus {
     pub is_favorited: bool,
     pub favorite_id: Option<Uuid>,
+}
+
+// 内存缓存结构
+#[derive(Debug, Clone)]
+pub struct AlbumsCache {
+    pub albums: Vec<AlbumInfo>,
+    pub search_index: std::collections::HashMap<String, Vec<AlbumInfo>>,
+    pub last_updated: chrono::DateTime<chrono::Utc>,
+}
+
+impl AlbumsCache {
+    pub fn new() -> Self {
+        Self {
+            albums: Vec::new(),
+            search_index: std::collections::HashMap::new(),
+            last_updated: chrono::Utc::now(),
+        }
+    }
+
+    pub fn is_expired(&self) -> bool {
+        let now = chrono::Utc::now();
+        let duration = now - self.last_updated;
+        duration.num_minutes() >= 30 // 30分钟过期
+    }
+
+    pub fn update(&mut self, albums: Vec<AlbumInfo>) {
+        self.albums = albums.clone();
+        self.last_updated = chrono::Utc::now();
+        
+        // 构建搜索索引
+        self.search_index.clear();
+        for album in &self.albums {
+            let title_lower = album.title.to_lowercase();
+            
+            // 为每个单词创建索引
+            for word in title_lower.split_whitespace() {
+                if word.len() >= 2 { // 只索引长度>=2的单词
+                    self.search_index
+                        .entry(word.to_string())
+                        .or_insert_with(Vec::new)
+                        .push(album.clone());
+                }
+            }
+            
+            // 为完整标题创建索引
+            self.search_index
+                .entry(title_lower.clone())
+                .or_insert_with(Vec::new)
+                .push(album.clone());
+        }
+        
+        println!("✅ 相册缓存已更新，共 {} 个相册，{} 个搜索索引项", 
+                 self.albums.len(), self.search_index.len());
+    }
+
+    pub fn search(&self, query: &str) -> Vec<AlbumInfo> {
+        let query_lower = query.to_lowercase();
+        let mut results = Vec::new();
+        let mut seen_ids = std::collections::HashSet::new();
+        
+        // 搜索完整匹配
+        if let Some(matches) = self.search_index.get(&query_lower) {
+            for album in matches {
+                if seen_ids.insert(album.id) {
+                    results.push(album.clone());
+                }
+            }
+        }
+        
+        // 搜索单词匹配
+        for word in query_lower.split_whitespace() {
+            if let Some(matches) = self.search_index.get(word) {
+                for album in matches {
+                    if seen_ids.insert(album.id) {
+                        results.push(album.clone());
+                    }
+                }
+            }
+        }
+        
+        results
+    }
 }