From 9c6ee1134c31314e6bc89bb950da96d96ec1fb28 Mon Sep 17 00:00:00 2001
From: Anders Pitman <tapitman11@gmail.com>
Date: Mon, 7 Mar 2022 12:10:46 -0700
Subject: [PATCH] Verify waygate domains aren't already taken

---
 database.go | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/database.go b/database.go
index 8a12243..0f09614 100644
--- a/database.go
+++ b/database.go
@@ -395,7 +395,15 @@ func (d *Database) AddWaygate(domains []string) (string, error) {
 		return "", errors.New("Could not generate waygate id")
 	}
 
-	// TODO: verify none of the domains are already in use.
+	for _, domainName := range domains {
+		for _, waygate := range d.Waygates {
+			for _, waygateDomainName := range waygate.Domains {
+				if domainName == waygateDomainName {
+					return "", errors.New("Domain already used by another waygate")
+				}
+			}
+		}
+	}
 
 	waygate := waygate.Waygate{
 		Domains: domains,