Initial commit

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

models/v/vidmod/ranking.go

@@ -0,0 +1,36 @@
+package vidmod
+
+import (
+	"time"
+
+	"91porn-server/common/stderr"
+	"91porn-server/models/commod"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+const rankingQueryMaxTime = 3 * time.Second
+
+// FindCumulativeRanking keeps the ranking usable when the Redis period rank is
+// empty. It reuses persisted popularity counters and the existing compound
+// index for a bounded fallback query.
+func FindCumulativeRanking(newsType string, page commod.Page) ([]*VideoModel, bool, error) {
+	if newsType == "" || page.PageNumber == 0 || page.PageSize == 0 || page.PageSize > 100 {
+		return nil, false, stderr.ErrParamError
+	}
+	filter, sorts := cumulativeRankingQuery(newsType)
+	opts := options.Find().
+		SetSkip(page.Skip64()).
+		SetLimit(page.Limit64()).
+		SetSort(sorts).
+		SetMaxTime(rankingQueryMaxTime)
+	return FindList(filter, opts)
+}
+
+func cumulativeRankingQuery(newsType string) (bson.M, bson.D) {
+	return bson.M{
+		"newsType": newsType,
+		"status":   bson.M{"$in": []int{CheckPass, Free}},
+	}, bson.D{{Key: "likeCount", Value: -1}, {Key: "reviewAt", Value: -1}}
+}