From ef22318d5ccb4200f613a14ec08bff3d6d516902 Mon Sep 17 00:00:00 2001
From: anik-ghosh-au7 <tech.anikghosh@gmail.com>
Date: Sun, 24 Jul 2022 10:40:37 +0530
Subject: [PATCH] feat: add generate_otp util

---
 server/utils/generate_otp.go | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 server/utils/generate_otp.go

diff --git a/server/utils/generate_otp.go b/server/utils/generate_otp.go
new file mode 100644
index 0000000..eb26e97
--- /dev/null
+++ b/server/utils/generate_otp.go
@@ -0,0 +1,24 @@
+package utils
+
+import (
+	"math/rand"
+	"time"
+)
+
+func GenerateOTP() string {
+	code := ""
+	codeLength := 6
+	charSet := "ABCDEFGHJKLMNPQRSTUVWXYZ123456789"
+	charSetLength := int32(len(charSet))
+	for i := 0; i < codeLength; i++ {
+		index := randomNumber(0, charSetLength)
+		code += string(charSet[index])
+	}
+
+	return code
+}
+
+func randomNumber(min, max int32) int32 {
+	rand.Seed(time.Now().UnixNano())
+	return min + int32(rand.Intn(int(max-min)))
+}