压缩历史至 95081aff

internal/apps/leaderboard/utils.go

@@ -0,0 +1,56 @@
+/*
+Copyright 2025 linux.do
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package leaderboard
+
+import (
+	"context"
+	"time"
+
+	"github.com/linux-do/credit/internal/db"
+	"github.com/linux-do/credit/internal/model"
+)
+
+func getCacheTTL(ctx context.Context) time.Duration {
+	ttl, err := model.GetIntByKey(ctx, model.ConfigKeyLeaderboardCacheTTLSeconds)
+	if err != nil || ttl <= 0 {
+		ttl = 30
+	}
+	return time.Duration(ttl) * time.Second
+}
+
+func queryLeaderboard(ctx context.Context, req *ListRequest) ([]LeaderboardEntry, int64, error) {
+	offset := (req.Page - 1) * req.PageSize
+
+	baseQuery := db.DB(ctx).Model(&model.User{}).Where("is_active = ?", true)
+
+	var total int64
+	if err := baseQuery.Count(&total).Error; err != nil {
+		return nil, 0, err
+	}
+
+	var items []LeaderboardEntry
+	if err := baseQuery.
+		Select("id as user_id, username, avatar_url, available_balance").
+		Order("available_balance DESC, id ASC").
+		Offset(offset).
+		Limit(req.PageSize).
+		Scan(&items).Error; err != nil {
+		return nil, 0, err
+	}
+
+	return items, total, nil
+}