Initial commit

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

pub/models/hotsearchmod/hotsearch.go

@@ -0,0 +1,105 @@
+package hotsearchmod
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+	"unicode"
+	"unicode/utf8"
+	"videoweb/pub/common/log"
+	"videoweb/pub/common/srvdef"
+	"videoweb/pub/mongos"
+
+	"go.mongodb.org/mongo-driver/bson"
+	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
+)
+
+var db *mongos.Collection
+
+func Init(ctx context.Context) {
+	db = mongos.Shop.Coll(TN.HotSearch)
+	indexes := []mongo.IndexModel{
+		{
+			Keys:    bson.D{{Key: FN.HotSearch.Keyword, Value: 1}},
+			Options: options.Index().SetUnique(true),
+		},
+		{
+			Keys: bson.D{
+				{Key: FN.HotSearch.Count, Value: -1},
+				{Key: FN.HotSearch.UpdatedAt, Value: -1},
+			},
+		},
+	}
+	if _, err := db.CreateIndex(ctx, indexes); err != nil {
+		panic(fmt.Sprintf("(hotsearchmod:Init) Create HotSearch Index failed! err:%+v:", err))
+	}
+}
+
+// NormalizeKeyword 去掉首尾空白、压缩中间空格，并限制长度。
+func NormalizeKeyword(raw string) string {
+	raw = strings.TrimSpace(raw)
+	if raw == "" {
+		return ""
+	}
+	fields := strings.FieldsFunc(raw, unicode.IsSpace)
+	raw = strings.Join(fields, " ")
+	if utf8.RuneCountInString(raw) > MaxKeywordRunes {
+		raw = string([]rune(raw)[:MaxKeywordRunes])
+	}
+	return raw
+}
+
+// IncrByKeyword 按搜索词累加次数，不存在则插入。
+func IncrByKeyword(ctx context.Context, keyword string) *srvdef.SrvErr {
+	keyword = NormalizeKeyword(keyword)
+	if keyword == "" {
+		return nil
+	}
+	now := time.Now()
+	filter := bson.M{FN.HotSearch.Keyword: keyword}
+	update := bson.M{
+		"$inc": bson.M{FN.HotSearch.Count: 1},
+		"$set": bson.M{FN.HotSearch.UpdatedAt: now},
+		"$setOnInsert": bson.M{
+			FN.HotSearch.Id:        mongos.Lid.HotSearch.Get(),
+			FN.HotSearch.Keyword:   keyword,
+			FN.HotSearch.CreatedAt: now,
+		},
+	}
+	if _, err := db.UpsertOne(ctx, filter, update); err != nil {
+		if _, retryErr := db.UpdateOne(ctx, filter, bson.M{
+			"$inc": bson.M{FN.HotSearch.Count: 1},
+			"$set": bson.M{FN.HotSearch.UpdatedAt: now},
+		}); retryErr != nil {
+			log.Warn("hotsearchmod:IncrByKeyword failed", log.E(err), log.E(retryErr), log.Any("keyword", keyword))
+			return srvdef.New(srvdef.ErrDbUpdateError, "", "")
+		}
+	}
+	return nil
+}
+
+func FindTopHotSearch(ctx context.Context, limit int64) (HotSearchList, *srvdef.SrvErr) {
+	if limit <= 0 {
+		limit = TopLimit
+	}
+	opts := options.Find().
+		SetSort(bson.D{
+			{Key: FN.HotSearch.Count, Value: -1},
+			{Key: FN.HotSearch.UpdatedAt, Value: -1},
+			{Key: FN.HotSearch.Id, Value: -1},
+		}).
+		SetLimit(limit).
+		SetProjection(bson.D{
+			{Key: FN.HotSearch.Id, Value: 1},
+			{Key: FN.HotSearch.Keyword, Value: 1},
+			{Key: FN.HotSearch.Count, Value: 1},
+		})
+	data := make(HotSearchList, 0)
+	if err := db.Find(ctx, &data, bson.M{}, opts); err != nil {
+		log.Warn("hotsearchmod:FindTopHotSearch db.Find failed", log.E(err))
+		return nil, srvdef.New(srvdef.ErrDbQueryError, "", "")
+	}
+	return data, nil
+}

pub/models/hotsearchmod/hotsearch_test.go

@@ -0,0 +1,31 @@
+package hotsearchmod
+
+import "testing"
+
+func TestNormalizeKeyword(t *testing.T) {
+	tests := []struct {
+		name string
+		raw  string
+		want string
+	}{
+		{name: "空串", raw: "   ", want: ""},
+		{name: "压缩空白", raw: "  霸道  总裁\t ", want: "霸道 总裁"},
+		{name: "截断长度", raw: stringsRepeat("测", 60), want: stringsRepeat("测", MaxKeywordRunes)},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := NormalizeKeyword(tt.raw); got != tt.want {
+				t.Fatalf("NormalizeKeyword() = %q, want %q", got, tt.want)
+			}
+		})
+	}
+}
+
+func stringsRepeat(s string, n int) string {
+	out := make([]rune, 0, n)
+	r := []rune(s)[0]
+	for i := 0; i < n; i++ {
+		out = append(out, r)
+	}
+	return string(out)
+}

pub/models/hotsearchmod/tag.go

@@ -0,0 +1,26 @@
+package hotsearchmod
+
+type TagHotSearch struct {
+	Id        string
+	Keyword   string
+	Count     string
+	CreatedAt string
+	UpdatedAt string
+}
+
+var FN struct {
+	HotSearch TagHotSearch
+}
+
+var TN struct {
+	HotSearch string
+}
+
+func init() {
+	FN.HotSearch.Id = "_id"
+	FN.HotSearch.Keyword = "keyword"
+	FN.HotSearch.Count = "count"
+	FN.HotSearch.CreatedAt = "createdAt"
+	FN.HotSearch.UpdatedAt = "updatedAt"
+	TN.HotSearch = "hot_search"
+}

pub/models/hotsearchmod/type.go

@@ -0,0 +1,20 @@
+package hotsearchmod
+
+import "time"
+
+const (
+	MaxKeywordRunes = 50
+	TopLimit        = 10
+)
+
+// HotSearch 热搜词
+// @table:hot_search
+type HotSearch struct {
+	Id        int64     `json:"id" bson:"_id,omitempty"`
+	Keyword   string    `json:"keyword" bson:"keyword"`     // 搜索词
+	Count     int64     `json:"count" bson:"count"`         // 搜索次数
+	CreatedAt time.Time `json:"createdAt" bson:"createdAt"` // 首次记录时间
+	UpdatedAt time.Time `json:"updatedAt" bson:"updatedAt"` // 最近搜索时间
+}
+
+type HotSearchList []*HotSearch