Check stopwords

go.mod

@@ -11,13 +11,15 @@ require (
 )
 
 require (
+	github.com/blevesearch/bleve v1.0.14
 	github.com/chai2010/webp v1.4.0
+	github.com/disintegration/imaging v1.6.2
+	github.com/stretchr/testify v1.11.1
 	gorm.io/driver/mysql v1.5.7
 )
 
 require (
 	github.com/RoaringBitmap/roaring v0.4.23 // indirect
-	github.com/blevesearch/bleve v1.0.14 // indirect
 	github.com/blevesearch/go-porterstemmer v1.0.3 // indirect
 	github.com/blevesearch/mmap-go v1.0.2 // indirect
 	github.com/blevesearch/segment v0.9.0 // indirect
@@ -28,15 +30,17 @@ require (
 	github.com/blevesearch/zap/v14 v14.0.5 // indirect
 	github.com/blevesearch/zap/v15 v15.0.3 // indirect
 	github.com/couchbase/vellum v1.0.2 // indirect
-	github.com/disintegration/imaging v1.6.2 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2 // indirect
 	github.com/go-sql-driver/mysql v1.7.0 // indirect
 	github.com/golang/protobuf v1.3.2 // indirect
 	github.com/golang/snappy v0.0.1 // indirect
 	github.com/mschoch/smat v0.2.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/steveyen/gtreap v0.1.0 // indirect
 	github.com/willf/bitset v1.1.10 // indirect
 	go.etcd.io/bbolt v1.3.5 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
 )
 
 require (

go.sum

@@ -6,6 +6,7 @@ github.com/andybalholm/brotli v1.1.1/go.mod h1:05ib4cKhjx3OQYUY22hTVd34Bc8upXjOL
 github.com/armon/consul-api v0.0.0-20180202201655-eb2c6b5be1b6/go.mod h1:grANhF5doyWs3UAsr3K4I6qtAmlQcZDesFNEHPZAzj8=
 github.com/blevesearch/bleve v1.0.14 h1:Q8r+fHTt35jtGXJUM0ULwM3Tzg+MRfyai4ZkWDy2xO4=
 github.com/blevesearch/bleve v1.0.14/go.mod h1:e/LJTr+E7EaoVdkQZTfoz7dt4KoDNvDbLb8MSKuNTLQ=
+github.com/blevesearch/blevex v1.0.0 h1:pnilj2Qi3YSEGdWgLj1Pn9Io7ukfXPoQcpAI1Bv8n/o=
 github.com/blevesearch/blevex v1.0.0/go.mod h1:2rNVqoG2BZI8t1/P1awgTKnGlx5MP9ZbtEciQaNhswc=
 github.com/blevesearch/cld2 v0.0.0-20200327141045-8b5f551d37f5/go.mod h1:PN0QNTLs9+j1bKy3d/GB/59wsNBFC4sWLWG3k69lWbc=
 github.com/blevesearch/go-porterstemmer v1.0.3 h1:GtmsqID0aZdCSNiY8SkuPJ12pD4jI+DdXTAn4YRcHCo=
@@ -36,6 +37,7 @@ github.com/couchbase/moss v0.1.0/go.mod h1:9MaHIaRuy9pvLPUJxB8sh8OrLfyDczECVL37g
 github.com/couchbase/vellum v1.0.2 h1:BrbP0NKiyDdndMPec8Jjhy0U47CZ0Lgx3xUC2r9rZqw=
 github.com/couchbase/vellum v1.0.2/go.mod h1:FcwrEivFpNi24R3jLOs3n+fs5RnuQnQqCLBJ1uAg1W4=
 github.com/cpuguy83/go-md2man v1.0.10/go.mod h1:SmD6nW6nTyfqj6ABTjUi3V3JVMnlJmwcJI5acqYI6dE=
+github.com/cznic/b v0.0.0-20181122101859-a26611c4d92d h1:SwD98825d6bdB+pEuTxWOXiSjBrHdOl/UVp75eI7JT8=
 github.com/cznic/b v0.0.0-20181122101859-a26611c4d92d/go.mod h1:URriBxXwVq5ijiJ12C7iIZqlA69nTlI+LgI6/pwftG8=
 github.com/cznic/mathutil v0.0.0-20181122101859-297441e03548/go.mod h1:e6NPNENfs9mPDVNRekM7lKScauxd5kXTr1Mfyig6TDM=
 github.com/cznic/strutil v0.0.0-20181122101858-275e90344537/go.mod h1:AHHPPPXTw0h6pVabbcbyGRK1DckRn7r/STdZEeIDzZc=
@@ -54,6 +56,7 @@ github.com/fxamacker/cbor/v2 v2.8.0 h1:fFtUGXUzXPHTIUdne5+zzMPTfffl3RD5qYnkY40vt
 github.com/fxamacker/cbor/v2 v2.8.0/go.mod h1:vM4b+DJCtHn+zz7h3FFp/hDAI9WNWCsZj23V5ytsSxQ=
 github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2 h1:Ujru1hufTHVb++eG6OuNDKMxZnGIvF6o/u8q/8h2+I4=
 github.com/glycerine/go-unsnap-stream v0.0.0-20181221182339-f9677308dec2/go.mod h1:/20jfyN9Y5QPEAprSgKAUr+glWDY39ZiUEAYOEv5dsE=
+github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31 h1:gclg6gY70GLy3PbkQ1AERPfmLMMagS60DKF78eWwLn8=
 github.com/glycerine/goconvey v0.0.0-20190410193231-58a59202ab31/go.mod h1:Ogl1Tioa0aV7gstGFO7KhffUsb9M4ydbEbbxpcEDc24=
 github.com/go-ini/ini v1.67.0 h1:z6ZrTEZqSWOTyH2FlglNbNgARyHG8oLW9gMELqKr06A=
 github.com/go-ini/ini v1.67.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
@@ -79,7 +82,6 @@ github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b h1:EY/KpStFl60
 github.com/gomarkdown/markdown v0.0.0-20250311123330-531bef5e742b/go.mod h1:JDGcbDT52eL4fju3sZ4TeHGsQwhG9nbDV21aMyhwPoA=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
-github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1 h1:EGx4pi6eqNxGaHF6qqu48+N2wcFQ5qg5FXgOdqsJ5d8=
 github.com/gopherjs/gopherjs v0.0.0-20181017120253-0766667cb4d1/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
 github.com/gopherjs/gopherjs v0.0.0-20190910122728-9d188e94fb99 h1:twflg0XRTjwKpxb/jFExr4HGq6on2dEOmnL6FV+fgPw=
 github.com/gopherjs/gopherjs v0.0.0-20190910122728-9d188e94fb99/go.mod h1:wJfORRmW1u3UXTncJ5qlYoELFm8eSnnEO6hX4iZ3EWY=
@@ -91,6 +93,7 @@ github.com/jinzhu/inflection v1.0.0 h1:K317FqzuhWc8YvSVlFMCCUb36O/S9MCKRDI7QkRKD
 github.com/jinzhu/inflection v1.0.0/go.mod h1:h+uFLlag+Qp1Va5pdKtLDYj+kHp5pxUVkryuEj+Srlc=
 github.com/jinzhu/now v1.1.5 h1:/o9tlHleP7gOFmsnYNz3RGnqzefHA47wQpKrrdTIwXQ=
 github.com/jinzhu/now v1.1.5/go.mod h1:d3SSVoowX0Lcu0IBviAWJpolVfI5UJVZZ7cO71lE/z8=
+github.com/jmhodges/levigo v1.0.0 h1:q5EC36kV79HWeTBWsod3mG11EgStG3qArTKcvlksN1U=
 github.com/jmhodges/levigo v1.0.0/go.mod h1:Q6Qx+uH3RAqyK4rFQroq9RL7mdkABMcfhEI+nNuzMJQ=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
@@ -149,10 +152,12 @@ github.com/steveyen/gtreap v0.1.0/go.mod h1:kl/5J7XbrOmlIbYIXdRHDDE5QxHqpk0cmkT7
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
+github.com/syndtr/goleveldb v1.0.0 h1:fBdIW9lB4Iz0n9khmH8w27SJ3QEJ7+IgjPEwGSZiFdE=
 github.com/syndtr/goleveldb v1.0.0/go.mod h1:ZVVdQEZoIme9iO1Ch2Jdy24qqXrMMOU6lpPAyBWyWuQ=
 github.com/tebeka/snowball v0.4.2/go.mod h1:4IfL14h1lvwZcp1sfXuuc7/7yCsvVffTWxWxCLfFpYg=
+github.com/tecbot/gorocksdb v0.0.0-20191217155057-f0fad39f321c h1:g+WoO5jjkqGAzHWCjJB1zZfXPIAaDpzXIEJ0eS6B5Ok=
 github.com/tecbot/gorocksdb v0.0.0-20191217155057-f0fad39f321c/go.mod h1:ahpPrc7HpcfEWDQRZEmnXMzHY03mLDYMCxeDzy46i+8=
 github.com/tinylib/msgp v1.1.0/go.mod h1:+d+yLhGm8mzTaHzB+wgMYrodPfmZrzkirds8fDWklFE=
 github.com/tinylib/msgp v1.2.5 h1:WeQg1whrXRFiZusidTQqzETkRpGjFjcIhW6uqWH09po=
@@ -176,8 +181,6 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.37.0 h1:kJNSjF/Xp7kU0iB2Z+9viTPMW4EqqsrywMXLJOOsXSE=
 golang.org/x/crypto v0.37.0/go.mod h1:vg+k43peMZ0pUMhYmVAWysMK35e6ioLh3wB8ZCAfbVc=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
-golang.org/x/image v0.27.0 h1:C8gA4oWU/tKkdCfYT6T2u4faJu3MeNS5O8UPWlPF61w=
-golang.org/x/image v0.27.0/go.mod h1:xbdrClrAUway1MUTEZDq9mz/UpRwYAkFFNUslZtcB+g=
 golang.org/x/image v0.28.0 h1:gdem5JW1OLS4FbkWgLO+7ZeFzYtL3xClb97GaUzYMFE=
 golang.org/x/image v0.28.0/go.mod h1:GUJYXtnGKEUgggyzh+Vxt+AviiCcyiwpsl8iQ8MvwGY=
 golang.org/x/net v0.0.0-20180906233101-161cd47e91fd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -195,11 +198,10 @@ golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.32.0 h1:s77OFDvIQeibCmezSnk/q6iAfkdiQaJi4VzroCFrN20=
 golang.org/x/sys v0.32.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.25.0 h1:qVyWApTSYLk/drJRO5mDlNYskwQznZmkpV2c8q9zls4=
-golang.org/x/text v0.25.0/go.mod h1:WEdwpYrmk1qmdHvhkSTNPm3app7v4rsT8F2UD6+VHIA=
 golang.org/x/text v0.26.0 h1:P42AVeLghgTYr4+xUnTRKDMqpar+PtX7KWuNQL21L8M=
 golang.org/x/text v0.26.0/go.mod h1:QK15LZJUUQVJxhz7wXgxSy/CJaTFjd0G+YLonydOVQA=
 golang.org/x/tools v0.0.0-20190328211700-ab21143f2384/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
 gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=

server/dao/db.go

@@ -70,3 +70,11 @@ func GetDB() *gorm.DB {
 func IsReady() bool {
 	return ready
 }
+
+func Close() error {
+	sqlDB, err := db.DB()
+	if err != nil {
+		return err
+	}
+	return sqlDB.Close()
+}

server/dao/tag.go

@@ -19,7 +19,7 @@ func CreateTag(tag string) (model.Tag, error) {
 	if err := db.Create(&t).Error; err != nil {
 		return model.Tag{}, err
 	}
-	return t, nil
+	return GetTagByID(t.ID)
 }
 
 func CreateTagWithType(tag string, tagType string) (model.Tag, error) {
@@ -82,13 +82,34 @@ func GetTagByName(name string) (model.Tag, error) {
 }
 
 func SetTagInfo(id uint, description string, aliasOf *uint, tagType string) error {
+	// Get the tag information
 	old, err := GetTagByID(id)
 	if err != nil {
 		return err
 	}
-	if aliasOf != nil && len(old.Aliases) > 0 {
+
-		return model.NewRequestError("Tag already has aliases, cannot set alias_of")
+	// If the alias tag is an alias itself, we need to find its root tag
+	if aliasOf != nil {
+		tag, err := GetTagByID(*aliasOf)
+		if err != nil {
+			return err
+		}
+		if tag.AliasOf != nil {
+			aliasOf = tag.AliasOf
+		}
 	}
+
+	// If the tag has aliases, we need to update their alias_of field
+	if aliasOf != nil && len(old.Aliases) > 0 {
+		for _, alias := range old.Aliases {
+			err := db.Model(&alias).Update("alias_of", *aliasOf).Error
+			if err != nil {
+				return err
+			}
+		}
+	}
+
+	// Update the tag information
 	t := model.Tag{Model: gorm.Model{
 		ID: id,
 	}, Description: description, Type: tagType, AliasOf: aliasOf}
@@ -113,24 +134,51 @@ func ListTags() ([]model.Tag, error) {
 
 // SetTagAlias sets a tag with the given ID having the given alias.
 func SetTagAlias(tagID uint, alias string) error {
-	// Set a tag as an alias of another tag
+	exists, err := ExistsTagByID(tagID)
-	var t model.Tag
+	if err != nil {
-	if err := db.Where("name = ?", alias).First(&t).Error; err != nil {
+		return err
-		if errors.Is(err, gorm.ErrRecordNotFound) {
+	}
-			// create
+	if !exists {
-			newTag, err := CreateTag(alias)
+		return model.NewNotFoundError("Tag not found")
-			if err != nil {
+	}
-				return err
+
-			}
+	exists, err = ExistsTag(alias)
-			t = newTag
+	if err != nil {
-		} else {
+		return err
+	}
+	if !exists {
+		// Create the alias tag if it does not exist
+		_, err := CreateTag(alias)
+		if err != nil {
 			return err
 		}
 	}
-	if t.ID == tagID {
+	// Get the alias tag
-		return model.NewRequestError("Tag cannot be an alias of itself")
+	tag, err := GetTagByName(alias)
+	if err != nil {
+		return err
 	}
-	return db.Model(&t).Update("alias_of", tagID).Error
+	// If the alias tag is an alias itself, we need to find its root tag
+	if tag.AliasOf != nil {
+		tag, err = GetTagByID(*tag.AliasOf)
+		if err != nil {
+			return err
+		}
+	}
+	// If the tag has aliases, we need to update their alias_of field
+	for _, alias := range tag.Aliases {
+		err := db.Model(&alias).Update("alias_of", tagID).Error
+		if err != nil {
+			return err
+		}
+	}
+	tag.Aliases = nil
+	// A tag cannot be an alias of itself
+	if tag.ID == tagID {
+		return model.NewRequestError("A tag cannot be an alias of itself")
+	}
+	// Set the alias_of field of the tag
+	return db.Model(&tag).Update("alias_of", tagID).Error
 }
 
 // RemoveTagAliasOf sets a tag is an independent tag, removing its alias relationship.
@@ -180,3 +228,11 @@ func ExistsTag(name string) (bool, error) {
 	}
 	return count > 0, nil
 }
+
+func ExistsTagByID(id uint) (bool, error) {
+	var count int64
+	if err := db.Model(&model.Tag{}).Where("id = ?", id).Count(&count).Error; err != nil {
+		return false, err
+	}
+	return count > 0, nil
+}

server/dao/tag_test.go

@@ -0,0 +1,109 @@
+package dao
+
+import (
+	"os"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTag(t *testing.T) {
+	// Create tags
+	tag1, err := CreateTag("test1")
+	assert.Nil(t, err)
+	tag2, err := CreateTag("test2")
+	assert.Nil(t, err)
+	tag3, err := CreateTagWithType("test3", "type1")
+	assert.Nil(t, err)
+
+	// Get tag by ID
+	fetchedTag, err := GetTagByID(tag1.ID)
+	assert.Nil(t, err)
+	assert.Equal(t, tag1.Name, fetchedTag.Name)
+
+	// Get tag by Name
+	fetchedTag, err = GetTagByName(tag2.Name)
+	assert.Nil(t, err)
+	assert.Equal(t, tag2.ID, fetchedTag.ID)
+
+	// Search tags
+	tags, err := SearchTag("test", true)
+	assert.Nil(t, err)
+	assert.GreaterOrEqual(t, len(tags), 3)
+
+	// Update tag
+	err = SetTagInfo(tag1.ID, "updated description", nil, "updated type")
+	assert.Nil(t, err)
+	updatedTag, err := GetTagByID(tag1.ID)
+	assert.Nil(t, err)
+	assert.Equal(t, "updated description", updatedTag.Description)
+	assert.Equal(t, "updated type", updatedTag.Type)
+
+	// Set tag alias
+	err = SetTagAlias(tag1.ID, tag2.Name)
+	assert.Nil(t, err)
+	err = SetTagAlias(tag1.ID, tag3.Name)
+	assert.Nil(t, err)
+	err = SetTagAlias(tag1.ID, "test4")
+	assert.Nil(t, err)
+	tag4, err := GetTagByName("test4")
+	assert.Nil(t, err)
+	tag1, err = GetTagByID(tag1.ID)
+	assert.Nil(t, err)
+	aliasesIDs := []uint{}
+	for _, alias := range tag1.Aliases {
+		aliasesIDs = append(aliasesIDs, alias.ID)
+	}
+	assert.Equal(t, []uint{tag2.ID, tag3.ID, tag4.ID}, aliasesIDs)
+
+	// let a tag which has alias point to another tag
+	tag5, err := CreateTag("test5")
+	assert.Nil(t, err)
+	err = SetTagAlias(tag5.ID, tag1.Name)
+	assert.Nil(t, err)
+	tag1, err = GetTagByID(tag1.ID)
+	assert.Nil(t, err)
+	tag2, err = GetTagByID(tag2.ID)
+	assert.Nil(t, err)
+	tag3, err = GetTagByID(tag3.ID)
+	assert.Nil(t, err)
+	tag4, err = GetTagByID(tag4.ID)
+	assert.Nil(t, err)
+	tag5, err = GetTagByID(tag5.ID)
+	assert.Nil(t, err)
+	assert.Empty(t, tag1.Aliases)
+	assert.Equal(t, &tag5.ID, tag1.AliasOf)
+	assert.Equal(t, &tag5.ID, tag2.AliasOf)
+	assert.Equal(t, &tag5.ID, tag3.AliasOf)
+	assert.Equal(t, &tag5.ID, tag4.AliasOf)
+	assert.Nil(t, tag5.AliasOf)
+
+	// Same operation as above, but using `SetTagInfo`
+	tag6, err := CreateTag("test6")
+	assert.Nil(t, err)
+	err = SetTagInfo(tag5.ID, "", &tag6.ID, "")
+	assert.Nil(t, err)
+	tag1, err = GetTagByID(tag1.ID)
+	assert.Nil(t, err)
+	tag2, err = GetTagByID(tag2.ID)
+	assert.Nil(t, err)
+	tag3, err = GetTagByID(tag3.ID)
+	assert.Nil(t, err)
+	tag4, err = GetTagByID(tag4.ID)
+	assert.Nil(t, err)
+	tag5, err = GetTagByID(tag5.ID)
+	assert.Nil(t, err)
+	tag6, err = GetTagByID(tag6.ID)
+	assert.Nil(t, err)
+	assert.Equal(t, &tag6.ID, tag1.AliasOf)
+	assert.Equal(t, &tag6.ID, tag2.AliasOf)
+	assert.Equal(t, &tag6.ID, tag3.AliasOf)
+	assert.Equal(t, &tag6.ID, tag4.AliasOf)
+	assert.Equal(t, &tag6.ID, tag5.AliasOf)
+	assert.Empty(t, tag5.Aliases)
+	assert.Nil(t, tag6.AliasOf)
+
+	// cleanup
+	_ = Close()
+	_ = os.Remove("test.db")
+}

server/search/resource.go

@@ -101,3 +101,14 @@ func SearchResource(keyword string) ([]uint, error) {
 
 	return results, nil
 }
+
+func IsStopWord(word string) bool {
+	mapping := bleve.NewIndexMapping()
+	analyzerName := mapping.DefaultAnalyzer
+	analyzer := mapping.AnalyzerNamed(analyzerName)
+	if analyzer == nil {
+		return false
+	}
+	tokens := analyzer.Analyze([]byte(word))
+	return len(tokens) == 0
+}

server/search/search_test.go

@@ -0,0 +1,185 @@
+package search
+
+import (
+	"nysoure/server/dao"
+	"nysoure/server/model"
+	"os"
+	"testing"
+
+	"github.com/blevesearch/bleve"
+	"gorm.io/gorm"
+)
+
+func Init() {
+	err := index.Close()
+	if err != nil {
+		panic(err)
+	}
+	_ = os.RemoveAll("search_test.bleve")
+	mapper := bleve.NewIndexMapping()
+	index, err = bleve.New("search_test.bleve", mapper)
+	if err != nil {
+		panic(err)
+	}
+}
+
+func TearDown() {
+	err := index.Close()
+	if err != nil {
+		panic(err)
+	}
+	dao.Close()
+	os.RemoveAll("search_test.bleve")
+	os.Remove("test.db")
+}
+
+func TestSearchResource(t *testing.T) {
+	Init()
+	defer TearDown()
+
+	resources := []model.Resource{
+		// normal cases
+		{Model: gorm.Model{ID: 1}, Title: "The Great Adventure", AlternativeTitles: []string{"Adventure Time", "The Big Adventure"}},
+		{Model: gorm.Model{ID: 2}, Title: "Mystery of the Lost City", AlternativeTitles: []string{"Lost City Chronicles"}},
+		{Model: gorm.Model{ID: 3}, Title: "Romance in Paris", AlternativeTitles: []string{"Love in Paris", "Parisian Romance"}},
+		{Model: gorm.Model{ID: 4}, Title: "Sci-Fi Extravaganza", AlternativeTitles: []string{"Future World", "Sci-Fi Saga"}},
+		{Model: gorm.Model{ID: 5}, Title: "Comedy Nights", AlternativeTitles: []string{"Laugh Out Loud", "Comedy Central"}},
+		// With special characters
+		{Model: gorm.Model{ID: 6}, Title: "Action & Adventure", AlternativeTitles: []string{"Action-Packed", "Adventure Time!"}},
+		{Model: gorm.Model{ID: 7}, Title: "Horror: The Awakening", AlternativeTitles: []string{"Scary Movie", "Horror Nights"}},
+		{Model: gorm.Model{ID: 8}, Title: "Drama @ Home", AlternativeTitles: []string{"Home Stories", "Dramatic Tales"}},
+		{Model: gorm.Model{ID: 9}, Title: "Fantasy #1", AlternativeTitles: []string{"Fantasy World", "Magical Tales"}},
+		{Model: gorm.Model{ID: 10}, Title: "Thriller ~Uncut~"},
+		{Model: gorm.Model{ID: 11}, Title: "Epic ~ Saga ~"},
+		{Model: gorm.Model{ID: 12}, Title: "Journey - Dawn -", AlternativeTitles: []string{"Dawn Adventures", "Journey Chronicles"}},
+		{Model: gorm.Model{ID: 13}, Title: "Legends -Rise-", AlternativeTitles: []string{"Rise of Legends", "Legendary Tales"}},
+		{Model: gorm.Model{ID: 14}, Title: "Chronicles: Time", AlternativeTitles: []string{"Time Chronicles", "Chronicles of Ages"}},
+	}
+
+	// Add resources to index
+	for _, r := range resources {
+		err := AddResourceToIndex(r)
+		if err != nil {
+			t.Fatalf("Failed to add resource ID %d to index: %v", r.ID, err)
+		}
+	}
+
+	tests := []struct {
+		query        string
+		expectedIDs  []uint
+		unexpectedID uint
+	}{
+		// Basic searches
+		{query: "Adventure", expectedIDs: []uint{1, 6}},
+		{query: "Mystery", expectedIDs: []uint{2}},
+		{query: "Romance", expectedIDs: []uint{3}},
+		{query: "Sci-Fi", expectedIDs: []uint{4}},
+		{query: "Comedy", expectedIDs: []uint{5}},
+		// Exact matches
+		{query: "The Great Adventure", expectedIDs: []uint{1}},
+		{query: "Mystery of the Lost City", expectedIDs: []uint{2}},
+		{query: "Romance in Paris", expectedIDs: []uint{3}},
+		{query: "Sci-Fi Extravaganza", expectedIDs: []uint{4}},
+		{query: "Comedy Nights", expectedIDs: []uint{5}},
+		{query: "Action & Adventure", expectedIDs: []uint{6}},
+		{query: "Horror: The Awakening", expectedIDs: []uint{7}},
+		{query: "Drama @ Home", expectedIDs: []uint{8}},
+		{query: "Fantasy #1", expectedIDs: []uint{9}},
+		{query: "Thriller ~Uncut~", expectedIDs: []uint{10}},
+		{query: "Epic ~ Saga ~", expectedIDs: []uint{11}},
+		{query: "Journey - Dawn -", expectedIDs: []uint{12}},
+		{query: "Legends -Rise-", expectedIDs: []uint{13}},
+		{query: "Chronicles: Time", expectedIDs: []uint{14}},
+		// Searches with special characters
+		{query: "Action & Adventure", expectedIDs: []uint{6}},
+		{query: "Horror: The Awakening", expectedIDs: []uint{7}},
+		{query: "Drama @ Home", expectedIDs: []uint{8}},
+		{query: "Fantasy #1", expectedIDs: []uint{9}},
+		{query: "Thriller ~Uncut~", expectedIDs: []uint{10}},
+		{query: "Epic ~ Saga ~", expectedIDs: []uint{11}},
+		{query: "Journey - Dawn -", expectedIDs: []uint{12}},
+		{query: "Legends -Rise-", expectedIDs: []uint{13}},
+		{query: "Chronicles: Time", expectedIDs: []uint{14}},
+		// Case insensitivity
+		{query: "adventure", expectedIDs: []uint{1, 6}},
+		{query: "MYSTERY", expectedIDs: []uint{2}},
+		{query: "rOmAnCe", expectedIDs: []uint{3}},
+		// Searches using alternative titles
+		{query: "Adventure Time", expectedIDs: []uint{1, 6}},
+		{query: "Lost City Chronicles", expectedIDs: []uint{2}},
+		{query: "Love in Paris", expectedIDs: []uint{3}},
+		{query: "Future World", expectedIDs: []uint{4}},
+		{query: "Laugh Out Loud", expectedIDs: []uint{5}},
+		// Searches with special characters in alternative titles
+		{query: "Action-Packed", expectedIDs: []uint{6}},
+		{query: "Scary Movie", expectedIDs: []uint{7}},
+		{query: "Home Stories", expectedIDs: []uint{8}},
+		{query: "Fantasy World", expectedIDs: []uint{9}},
+		{query: "Epic Tales", expectedIDs: []uint{11}},
+		{query: "Dawn Adventures", expectedIDs: []uint{12}},
+		{query: "Rise of Legends", expectedIDs: []uint{13}},
+		{query: "Time Chronicles", expectedIDs: []uint{14}},
+		// Searches with special characters in queries
+		{query: "Horror:", expectedIDs: []uint{7}},
+		{query: "@ Home", expectedIDs: []uint{8}},
+		{query: "#1", expectedIDs: []uint{9}},
+		{query: "~Uncut~", expectedIDs: []uint{10}},
+		{query: "Uncut", expectedIDs: []uint{10}},
+		{query: "~ Saga ~", expectedIDs: []uint{11}},
+		{query: "Saga", expectedIDs: []uint{11}},
+		{query: "- Dawn -", expectedIDs: []uint{12}},
+		{query: "-Rise-", expectedIDs: []uint{13}},
+	}
+
+	for _, test := range tests {
+		t.Run(test.query, func(t *testing.T) {
+			resultIDs, err := SearchResource(test.query)
+			if err != nil {
+				t.Fatalf("Search failed for query '%s': %v", test.query, err)
+			}
+
+			// Check for expected IDs
+			for _, expectedID := range test.expectedIDs {
+				found := false
+				for _, resultID := range resultIDs {
+					if resultID == expectedID {
+						found = true
+						break
+					}
+				}
+				if !found {
+					t.Errorf("Expected ID %d not found in results for query '%s'", expectedID, test.query)
+				}
+			}
+
+			// Check for unexpected ID
+			if test.unexpectedID != 0 {
+				for _, resultID := range resultIDs {
+					if resultID == test.unexpectedID {
+						t.Errorf("Unexpected ID %d found in results for query '%s'", test.unexpectedID, test.query)
+					}
+				}
+			}
+		})
+	}
+}
+
+func TestIsStopWord(t *testing.T) {
+	Init()
+	defer TearDown()
+
+	stopWords := []string{"the", "is", "at", "which", "on", "and", "a", "an", "in", "to", "of"}
+	nonStopWords := []string{"adventure", "mystery", "romance", "sci-fi", "comedy", "action", "horror"}
+
+	for _, word := range stopWords {
+		if !IsStopWord(word) {
+			t.Errorf("Expected '%s' to be identified as a stop word", word)
+		}
+	}
+
+	for _, word := range nonStopWords {
+		if IsStopWord(word) {
+			t.Errorf("Expected '%s' to not be identified as a stop word", word)
+		}
+	}
+}

server/service/resource.go

@@ -291,34 +291,57 @@ func SearchResource(query string, page int) ([]model.ResourceView, int, error) {
 	// split query to search
 	keywords := splitQuery(query)
 	var temp []uint
-	first := true
+	haveTag := false
 	for _, keyword := range keywords {
-		if keyword == "" {
+		if len([]rune(keyword)) <= maxTagLength {
-			continue
+			exists, err := dao.ExistsTag(keyword)
-		}
+			if err != nil {
-		if utils.OnlyPunctuation(keyword) {
+				return nil, 0, err
-			continue
+			}
+			if exists {
+				haveTag = true
+			}
 		}
+	}
+	if haveTag {
+		first := true
+		for _, keyword := range keywords {
+			if keyword == "" {
+				continue
+			}
+			if utils.OnlyPunctuation(keyword) {
+				continue
+			}
 
-		res, err := searchWithKeyword(keyword)
+			res, err := searchWithKeyword(keyword)
+			if err != nil {
+				return nil, 0, err
+			}
+			if len(res) == 0 && search.IsStopWord(keyword) {
+				continue
+			}
+			if first {
+				temp = utils.RemoveDuplicate(res)
+				first = false
+			} else {
+				temp1 := make([]uint, 0)
+				for _, id := range temp {
+					for _, id2 := range res {
+						if id == id2 {
+							temp1 = append(temp1, id)
+							break
+						}
+					}
+				}
+				temp = temp1
+			}
+		}
+	} else {
+		res, err := searchWithKeyword(query)
 		if err != nil {
 			return nil, 0, err
 		}
-		if first {
+		temp = res
-			temp = utils.RemoveDuplicate(res)
-			first = false
-		} else {
-			temp1 := make([]uint, 0)
-			for _, id := range temp {
-				for _, id2 := range res {
-					if id == id2 {
-						temp1 = append(temp1, id)
-						break
-					}
-				}
-			}
-			temp = temp1
-		}
 	}
 	resources = append(resources, temp...)
 	resources = utils.RemoveDuplicate(resources)