From df607c1d1f6ea9ad5fcc99a0cabba0ede4be0d4e Mon Sep 17 00:00:00 2001
From: talyz <kim.lindberger@gmail.com>
Date: Tue, 11 Jan 2022 13:36:52 +0100
Subject: [PATCH] nixos/bookstack: Make the hostname configurable...

...and set a reasonable default `appURL` based on it.

This is pretty much required when configuring ACME, and useful in
general.
---
 nixos/modules/services/web-apps/bookstack.nix | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/nixos/modules/services/web-apps/bookstack.nix b/nixos/modules/services/web-apps/bookstack.nix
index 1124568e8d35..62a04bccc667 100644
--- a/nixos/modules/services/web-apps/bookstack.nix
+++ b/nixos/modules/services/web-apps/bookstack.nix
@@ -24,6 +24,7 @@ let
     $sudo ${pkgs.php}/bin/php artisan $*
   '';
 
+  tlsEnabled = cfg.nginx.addSSL || cfg.nginx.forceSSL || cfg.nginx.onlySSL || cfg.nginx.enableACME;
 
 in {
   imports = [
@@ -55,11 +56,26 @@ in {
       type = types.path;
     };
 
+    hostname = lib.mkOption {
+      type = lib.types.str;
+      default = if config.networking.domain != null then
+                  config.networking.fqdn
+                else
+                  config.networking.hostName;
+      defaultText = lib.literalExpression "config.networking.fqdn";
+      example = "bookstack.example.com";
+      description = ''
+        The hostname to serve BookStack on.
+      '';
+    };
+
     appURL = mkOption {
       description = ''
         The root URL that you want to host BookStack on. All URLs in BookStack will be generated using this value.
         If you change this in the future you may need to run a command to update stored URLs in the database. Command example: <code>php artisan bookstack:update-url https://old.example.com https://new.example.com</code>
       '';
+      default = "http${lib.optionalString tlsEnabled "s"}://${cfg.hostname}";
+      defaultText = ''http''${lib.optionalString tlsEnabled "s"}://''${cfg.hostname}'';
       example = "https://example.com";
       type = types.str;
     };
@@ -256,7 +272,7 @@ in {
 
     services.nginx = {
       enable = mkDefault true;
-      virtualHosts.bookstack = mkMerge [ cfg.nginx {
+      virtualHosts.${cfg.hostname} = mkMerge [ cfg.nginx {
         root = mkForce "${bookstack}/public";
         extraConfig = optionalString (cfg.nginx.addSSL || cfg.nginx.forceSSL || cfg.nginx.onlySSL || cfg.nginx.enableACME) "fastcgi_param HTTPS on;";
         locations = {