Refactor: all plugin subdirectories use option patterncopilot/modify-plugin-files-subdirectories

Apply the same functional options pattern from plugin/singbox to:
- plugin/mihomo (mrs_in.go, mrs_out.go)
- plugin/plaintext (text_in.go, common_in.go, common_out.go, text_out.go, clash_in.go, clash_out.go, json_in.go, surge_in.go, surge_out.go)
- plugin/maxmind (all input/output files)
- plugin/v2ray (dat_in.go, dat_out.go)
- plugin/special (cutter.go, lookup.go, private.go, stdin.go, stdout.go)
- lookup.go and merge.go updated to use new constructors

Co-authored-by: Loyalsoldier <[email protected]>

2 files changed, 166 insertions, 81 deletions

diff --git a/plugin/v2ray/dat_in.go b/plugin/v2ray/dat_in.go
index 33a24061..93c52a51 100644
--- a/plugin/v2ray/dat_in.go
+++ b/plugin/v2ray/dat_in.go
@@ -4,6 +4,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log"
 	"net"
 	"net/http"
 	"os"
@@ -20,70 +21,102 @@ const (
 
 func init() {
 	lib.RegisterInputConfigCreator(TypeGeoIPDatIn, func(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-		return newGeoIPDatIn(action, data)
+		return NewGeoIPDatInFromBytes(action, data)
 	})
-	lib.RegisterInputConverter(TypeGeoIPDatIn, &GeoIPDatIn{
+	lib.RegisterInputConverter(TypeGeoIPDatIn, &geoIPDatIn{
 		Description: DescGeoIPDatIn,
 	})
 }
 
-func newGeoIPDatIn(action lib.Action, data json.RawMessage) (lib.InputConverter, error) {
-	var tmp struct {
-		URI        string     `json:"uri"`
-		Want       []string   `json:"wantedList"`
-		OnlyIPType lib.IPType `json:"onlyIPType"`
+type geoIPDatIn struct {
+	Type        string
+	Action      lib.Action
+	Description string
+	URI         string
+	Want        map[string]bool
+	OnlyIPType  lib.IPType
+}
+
+func NewGeoIPDatIn(action lib.Action, opts ...lib.InputOption) lib.InputConverter {
+	g := &geoIPDatIn{
+		Type:        TypeGeoIPDatIn,
+		Action:      action,
+		Description: DescGeoIPDatIn,
 	}
 
-	if len(data) > 0 {
-		if err := json.Unmarshal(data, &tmp); err != nil {
-			return nil, err
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
 		}
 	}
 
-	if tmp.URI == "" {
-		return nil, fmt.Errorf("❌ [type %s | action %s] uri must be specified in config", TypeGeoIPDatIn, action)
+	return g
+}
+
+func WithURI(uri string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		uri = strings.TrimSpace(uri)
+		if uri == "" {
+			log.Fatalf("❌ [type %s | action %s] uri must be specified", TypeGeoIPDatIn, g.(*geoIPDatIn).Action)
+		}
+
+		g.(*geoIPDatIn).URI = uri
 	}
+}
 
-	// Filter want list
-	wantList := make(map[string]bool)
-	for _, want := range tmp.Want {
-		if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
-			wantList[want] = true
+func WithInputWantedList(lists []string) lib.InputOption {
+	return func(g lib.InputConverter) {
+		wantList := make(map[string]bool)
+		for _, want := range lists {
+			if want = strings.ToUpper(strings.TrimSpace(want)); want != "" {
+				wantList[want] = true
+			}
 		}
+
+		g.(*geoIPDatIn).Want = wantList
 	}
+}
 
-	return &GeoIPDatIn{
-		Type:        TypeGeoIPDatIn,
-		Action:      action,
-		Description: DescGeoIPDatIn,
-		URI:         tmp.URI,
-		Want:        wantList,
-		OnlyIPType:  tmp.OnlyIPType,
-	}, nil
+func WithInputOnlyIPType(onlyIPType lib.IPType) lib.InputOption {
+	return func(g lib.InputConverter) {
+		g.(*geoIPDatIn).OnlyIPType = onlyIPType
+	}
 }
 
-type GeoIPDatIn struct {
-	Type        string
-	Action      lib.Action
-	Description string
-	URI         string
-	Want        map[string]bool
-	OnlyIPType  lib.IPType
+func NewGeoIPDatInFromBytes(action lib.Action, data []byte) (lib.InputConverter, error) {
+	var tmp struct {
+		URI        string     `json:"uri"`
+		Want       []string   `json:"wantedList"`
+		OnlyIPType lib.IPType `json:"onlyIPType"`
+	}
+
+	if len(data) > 0 {
+		if err := json.Unmarshal(data, &tmp); err != nil {
+			return nil, err
+		}
+	}
+
+	return NewGeoIPDatIn(
+		action,
+		WithURI(tmp.URI),
+		WithInputWantedList(tmp.Want),
+		WithInputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoIPDatIn) GetType() string {
+func (g *geoIPDatIn) GetType() string {
 	return g.Type
 }
 
-func (g *GeoIPDatIn) GetAction() lib.Action {
+func (g *geoIPDatIn) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoIPDatIn) GetDescription() string {
+func (g *geoIPDatIn) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoIPDatIn) Input(container lib.Container) (lib.Container, error) {
+func (g *geoIPDatIn) Input(container lib.Container) (lib.Container, error) {
 	entries := make(map[string]*lib.Entry)
 	var err error
 
@@ -122,7 +155,7 @@ func (g *GeoIPDatIn) Input(container lib.Container) (lib.Container, error) {
 	return container, nil
 }
 
-func (g *GeoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) error {
 	file, err := os.Open(path)
 	if err != nil {
 		return err
@@ -136,7 +169,7 @@ func (g *GeoIPDatIn) walkLocalFile(path string, entries map[string]*lib.Entry) e
 	return nil
 }
 
-func (g *GeoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) error {
 	resp, err := http.Get(url)
 	if err != nil {
 		return err
@@ -154,7 +187,7 @@ func (g *GeoIPDatIn) walkRemoteFile(url string, entries map[string]*lib.Entry) e
 	return nil
 }
 
-func (g *GeoIPDatIn) generateEntries(reader io.Reader, entries map[string]*lib.Entry) error {
+func (g *geoIPDatIn) generateEntries(reader io.Reader, entries map[string]*lib.Entry) error {
 	geoipBytes, err := io.ReadAll(reader)
 	if err != nil {
 		return err
diff --git a/plugin/v2ray/dat_out.go b/plugin/v2ray/dat_out.go
index 5137e828..f2a28216 100644
--- a/plugin/v2ray/dat_out.go
+++ b/plugin/v2ray/dat_out.go
@@ -26,14 +26,88 @@ var (
 
 func init() {
 	lib.RegisterOutputConfigCreator(TypeGeoIPDatOut, func(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
-		return newGeoIPDatOut(action, data)
+		return NewGeoIPDatOutFromBytes(action, data)
 	})
-	lib.RegisterOutputConverter(TypeGeoIPDatOut, &GeoIPDatOut{
+	lib.RegisterOutputConverter(TypeGeoIPDatOut, &geoIPDatOut{
 		Description: DescGeoIPDatOut,
 	})
 }
 
-func newGeoIPDatOut(action lib.Action, data json.RawMessage) (lib.OutputConverter, error) {
+type geoIPDatOut struct {
+	Type           string
+	Action         lib.Action
+	Description    string
+	OutputName     string
+	OutputDir      string
+	Want           []string
+	Exclude        []string
+	OneFilePerList bool
+	OnlyIPType     lib.IPType
+}
+
+func NewGeoIPDatOut(action lib.Action, opts ...lib.OutputOption) lib.OutputConverter {
+	g := &geoIPDatOut{
+		Type:        TypeGeoIPDatOut,
+		Action:      action,
+		Description: DescGeoIPDatOut,
+	}
+
+	for _, opt := range opts {
+		if opt != nil {
+			opt(g)
+		}
+	}
+
+	return g
+}
+
+func WithOutputName(name string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			name = defaultOutputName
+		}
+
+		g.(*geoIPDatOut).OutputName = name
+	}
+}
+
+func WithOutputDir(dir string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		dir = strings.TrimSpace(dir)
+		if dir == "" {
+			dir = defaultOutputDir
+		}
+
+		g.(*geoIPDatOut).OutputDir = dir
+	}
+}
+
+func WithOutputWantedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).Want = lists
+	}
+}
+
+func WithOutputExcludedList(lists []string) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).Exclude = lists
+	}
+}
+
+func WithOneFilePerList(oneFilePerList bool) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).OneFilePerList = oneFilePerList
+	}
+}
+
+func WithOutputOnlyIPType(onlyIPType lib.IPType) lib.OutputOption {
+	return func(g lib.OutputConverter) {
+		g.(*geoIPDatOut).OnlyIPType = onlyIPType
+	}
+}
+
+func NewGeoIPDatOutFromBytes(action lib.Action, data []byte) (lib.OutputConverter, error) {
 	var tmp struct {
 		OutputName     string     `json:"outputName"`
 		OutputDir      string     `json:"outputDir"`
@@ -49,52 +123,30 @@ func newGeoIPDatOut(action lib.Action, data json.RawMessage) (lib.OutputConverte
 		}
 	}
 
-	if tmp.OutputName == "" {
-		tmp.OutputName = defaultOutputName
-	}
-
-	if tmp.OutputDir == "" {
-		tmp.OutputDir = defaultOutputDir
-	}
-
-	return &GeoIPDatOut{
-		Type:           TypeGeoIPDatOut,
-		Action:         action,
-		Description:    DescGeoIPDatOut,
-		OutputName:     tmp.OutputName,
-		OutputDir:      tmp.OutputDir,
-		Want:           tmp.Want,
-		Exclude:        tmp.Exclude,
-		OneFilePerList: tmp.OneFilePerList,
-		OnlyIPType:     tmp.OnlyIPType,
-	}, nil
-}
-
-type GeoIPDatOut struct {
-	Type           string
-	Action         lib.Action
-	Description    string
-	OutputName     string
-	OutputDir      string
-	Want           []string
-	Exclude        []string
-	OneFilePerList bool
-	OnlyIPType     lib.IPType
+	return NewGeoIPDatOut(
+		action,
+		WithOutputName(tmp.OutputName),
+		WithOutputDir(tmp.OutputDir),
+		WithOutputWantedList(tmp.Want),
+		WithOutputExcludedList(tmp.Exclude),
+		WithOneFilePerList(tmp.OneFilePerList),
+		WithOutputOnlyIPType(tmp.OnlyIPType),
+	), nil
 }
 
-func (g *GeoIPDatOut) GetType() string {
+func (g *geoIPDatOut) GetType() string {
 	return g.Type
 }
 
-func (g *GeoIPDatOut) GetAction() lib.Action {
+func (g *geoIPDatOut) GetAction() lib.Action {
 	return g.Action
 }
 
-func (g *GeoIPDatOut) GetDescription() string {
+func (g *geoIPDatOut) GetDescription() string {
 	return g.Description
 }
 
-func (g *GeoIPDatOut) Output(container lib.Container) error {
+func (g *geoIPDatOut) Output(container lib.Container) error {
 	geoIPList := new(GeoIPList)
 	geoIPList.Entry = make([]*GeoIP, 0, 300)
 	updated := false
@@ -144,7 +196,7 @@ func (g *GeoIPDatOut) Output(container lib.Container) error {
 	return nil
 }
 
-func (g *GeoIPDatOut) filterAndSortList(container lib.Container) []string {
+func (g *geoIPDatOut) filterAndSortList(container lib.Container) []string {
 	excludeMap := make(map[string]bool)
 	for _, exclude := range g.Exclude {
 		if exclude = strings.ToUpper(strings.TrimSpace(exclude)); exclude != "" {
@@ -180,7 +232,7 @@ func (g *GeoIPDatOut) filterAndSortList(container lib.Container) []string {
 	return list
 }
 
-func (g *GeoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
+func (g *geoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
 	entryCidr, err := entry.MarshalPrefix(lib.GetIgnoreIPType(g.OnlyIPType))
 	if err != nil {
 		return nil, err
@@ -205,13 +257,13 @@ func (g *GeoIPDatOut) generateGeoIP(entry *lib.Entry) (*GeoIP, error) {
 }
 
 // Sort by country code to make reproducible builds
-func (g *GeoIPDatOut) sort(list *GeoIPList) {
+func (g *geoIPDatOut) sort(list *GeoIPList) {
 	sort.SliceStable(list.Entry, func(i, j int) bool {
 		return list.Entry[i].CountryCode < list.Entry[j].CountryCode
 	})
 }
 
-func (g *GeoIPDatOut) writeFile(filename string, geoIPBytes []byte) error {
+func (g *geoIPDatOut) writeFile(filename string, geoIPBytes []byte) error {
 	if err := os.MkdirAll(g.OutputDir, 0755); err != nil {
 		return err
 	}