random file

files.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"math/rand"
+	"os"
+)
+
+func getRandomFile(dir string) (string, error) {
+	files, err := os.ReadDir(dir)
+	if err != nil {
+		return "", err
+	}
+	randomIndex := rand.Intn(len(files))
+	randomImg := files[randomIndex]
+	return dir + "/" + randomImg.Name(), nil
+}