init: web_hgdjc_server

2026-11-07 10:44:09 +08:00
commit 71a4f4e175
713 changed files with 147749 additions and 0 deletions
@@ -0,0 +1,81 @@
+package playletser
+
+import (
+	"context"
+	"time"
+	"videoweb/pub/common/srvdef"
+	"videoweb/pub/models/playletmod"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+const operateRandomModulus int64 = 2147483647
+
+func operateListFilter(typ int64) bson.M {
+	filter := homeUpPlayletFilter(nil)
+	if typ == operateListOriginal {
+		filter[playletmod.FN.Playlet.IsRecommend] = true
+	}
+	return filter
+}
+
+func operateListSort(typ int64) bson.D {
+	if typ == operateListHot {
+		return bson.D{{Key: playletmod.FN.Playlet.HeatValue, Value: -1}, {Key: playletmod.FN.Playlet.Id, Value: -1}}
+	}
+	return playletRecentlyUpdatedSort()
+}
+
+// findRandomOperatePlaylets 按每日固定的伪随机顺序分页查询短剧
+func findRandomOperatePlaylets(ctx context.Context, filter bson.M, skip, limit int64, now time.Time) (playletmod.PlayletList, *srvdef.SrvErr) {
+	var rows []struct {
+		Id int64 `bson:"_id"`
+	}
+	if err := playletmod.AggregatePlaylet(ctx, &rows, operateRandomPipeline(filter, skip, limit, now)); err != nil {
+		return nil, err
+	}
+	ids := make([]int64, 0, len(rows))
+	for _, row := range rows {
+		ids = append(ids, row.Id)
+	}
+	if len(ids) == 0 {
+		return make(playletmod.PlayletList, 0), nil
+	}
+	queryFilter := bson.M{playletmod.FN.Playlet.Id: bson.M{"$in": ids}}
+	for key, value := range filter {
+		queryFilter[key] = value
+	}
+	list, err := playletmod.FindManyPlaylet(ctx, queryFilter, options.Find().SetProjection(playletHomeProjection))
+	if err != nil {
+		return nil, err
+	}
+	byID := make(map[int64]*playletmod.Playlet, len(list))
+	for _, item := range list {
+		if item != nil {
+			byID[item.Id] = item
+		}
+	}
+	ordered := make(playletmod.PlayletList, 0, len(ids))
+	for _, id := range ids {
+		if item := byID[id]; item != nil {
+			ordered = append(ordered, item)
+		}
+	}
+	return ordered, nil
+}
+
+func operateRandomPipeline(filter bson.M, skip, limit int64, now time.Time) []bson.M {
+	day := (now.Unix() + 8*60*60) / (24 * 60 * 60)
+	factor := int64(48271) + day%997*2767
+	idMod := bson.M{"$mod": bson.A{"$_id", operateRandomModulus}}
+	score := bson.M{"$mod": bson.A{bson.M{"$multiply": bson.A{idMod, factor}}, operateRandomModulus}}
+	return []bson.M{
+		{"$match": filter},
+		{"$project": bson.M{"_id": 1}},
+		{"$addFields": bson.M{"randomScore": score}},
+		{"$sort": bson.D{{Key: "randomScore", Value: 1}, {Key: "_id", Value: 1}}},
+		{"$skip": skip},
+		{"$limit": limit},
+	}
+}