feat: support loading whole directory on trainning

cli/train/train.go

@@ -2,7 +2,9 @@ package main
 
 import (
 	"flag"
+	"fmt"
 	"log"
+	"path/filepath"
 	"strings"
 
 	"github.com/kevwan/chatbot/bot"
@@ -11,14 +13,27 @@ import (
 
 var (
 	corpora       = flag.String("i", "", "the corpora files, comma to separate multiple files")
+	dir           = flag.String("d", "", "the directory to look for corpora files")
 	storeFile     = flag.String("o", "corpus.gob", "the file to store corpora")
 	printMemStats = flag.Bool("m", false, "enable printing memory stats")
 )
 
 func main() {
 	flag.Parse()
 
-	if len(*corpora) == 0 {
+	var files []string
+	if len(*dir) > 0 {
+		files = findCorporaFiles(*dir)
+	}
+
+	var corporaFiles string
+	if len(files) > 0 {
+		corporaFiles = strings.Join(files, ",")
+	}
+	if len(*corpora) > 0 {
+		corporaFiles = strings.Join([]string{corporaFiles, *corpora}, ",")
+	}
+	if len(corporaFiles) == 0 {
 		flag.Usage()
 		return
 	}
@@ -33,7 +48,35 @@ func main() {
 		Trainer:        bot.NewCorpusTrainer(store),
 		StorageAdapter: store,
 	}
-	if err := chatbot.Train(strings.Split(*corpora, ",")); err != nil {
+	if err := chatbot.Train(strings.Split(corporaFiles, ",")); err != nil {
 		log.Fatal(err)
 	}
 }
+
+func findCorporaFiles(dir string) []string {
+	var files []string
+
+	jsonFiles, err := filepath.Glob(filepath.Join(dir, "*.json"))
+	if err != nil {
+		fmt.Println(err)
+		return nil
+	}
+
+	files = append(files, jsonFiles...)
+
+	ymlFiles, err := filepath.Glob(filepath.Join(dir, "*.yml"))
+	if err != nil {
+		fmt.Println(err)
+		return nil
+	}
+
+	files = append(files, ymlFiles...)
+
+	yamlFiles, err := filepath.Glob(filepath.Join(dir, "*.yaml"))
+	if err != nil {
+		fmt.Println(err)
+		return nil
+	}
+
+	return append(files, yamlFiles...)
+}