From d1bf1f76eb149bf1d9a544a6bd929bfb516a5824 Mon Sep 17 00:00:00 2001
From: Timur Ismagilov <bouncepaw2@ya.ru>
Date: Sat, 1 Jun 2024 23:43:26 +0300
Subject: [PATCH] Offer to pass -create-admin option if no admins were found

Implements: #218
---
 main.go       |  4 ++++
 user/users.go | 11 ++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/main.go b/main.go
index f5d492b..5988df3 100644
--- a/main.go
+++ b/main.go
@@ -61,5 +61,9 @@ func main() {
 	// Static files:
 	static.InitFS(files.StaticFiles())
 
+	if !user.HasAnyAdmins() {
+		log.Println("Your wiki has no admin yet. Run Mycorrhiza with -create-admin <username> option to create an admin.")
+	}
+
 	serveHTTP(web.Handler())
 }
diff --git a/user/users.go b/user/users.go
index fadc18a..41f4135 100644
--- a/user/users.go
+++ b/user/users.go
@@ -9,7 +9,7 @@ var tokens sync.Map
 func YieldUsers() chan *User {
 	ch := make(chan *User)
 	go func(ch chan *User) {
-		users.Range(func(_, v interface{}) bool {
+		users.Range(func(_, v any) bool {
 			ch <- v.(*User)
 			return true
 		})
@@ -38,6 +38,15 @@ func Count() (i uint64) {
 	return i
 }
 
+func HasAnyAdmins() bool {
+	for u := range YieldUsers() {
+		if u.Group == "admin" {
+			return true
+		}
+	}
+	return false
+}
+
 // HasUsername checks whether the desired user exists
 func HasUsername(username string) bool {
 	_, has := users.Load(username)