feat: refactor auth package and add get users for staff

internal/utilities/utils/jwt.go

@@ -34,10 +34,10 @@ type ClaimOption func(options jwt.MapClaims)
 func GenerateToken(data authdomain.AuthToken) (string, error) {
 	now := timeutils.Now()
 	claims := jwt.MapClaims{
-		"email":      data.Email,
-		"role":       data.Role,
-		"session_id": data.SessionID,
-		"exp":        now.Add(time.Minute * time.Duration(config.REDIS_TIMEOUT)).Unix(),
+		string(jwtclaimenum.EMAIL):      data.Email,
+		string(jwtclaimenum.ROLE):       data.Role,
+		string(jwtclaimenum.SESSION_ID): data.SessionID,
+		string(jwtclaimenum.EXPIRED_AT): now.Add(time.Minute * time.Duration(config.REDIS_TIMEOUT)).Unix(),
 	}
 
 	token := jwt.NewWithClaims(jwt.SigningMethodHS256, claims)
@@ -79,10 +79,19 @@ func DestructToken(s string) (authdomain.AuthToken, error) {
 	}
 
 	sessionId, ok := claims[string(jwtclaimenum.SESSION_ID)].(string)
+	if !ok {
+		return data, errors.New("invalid session_id")
+	}
+
+	role, ok := claims[string(jwtclaimenum.ROLE)].(string)
+	if !ok {
+		return data, errors.New("invalid role")
+	}
 
 	data = authdomain.AuthToken{
 		Email:     email,
 		SessionID: sessionId,
+		Role:      role,
 	}
 
 	return data, nil