From 430fdd501c2017b125e75b2e55358a51216b45ab Mon Sep 17 00:00:00 2001
From: stuebinm
Date: Thu, 19 Aug 2021 19:34:15 +0200
Subject: workadventure: use exneuland backend

---
 hosts/chaski/configuration.nix      |  3 ++-
 hosts/chaski/services/exneuland.nix | 50 +++++++++++++++++++++++++++++++++++++
 pkgs/exneuland.nix                  | 32 ++++++++++++++++++++++++
 3 files changed, 84 insertions(+), 1 deletion(-)
 create mode 100644 hosts/chaski/services/exneuland.nix
 create mode 100644 pkgs/exneuland.nix

diff --git a/hosts/chaski/configuration.nix b/hosts/chaski/configuration.nix
index df1454f..fc9484f 100644
--- a/hosts/chaski/configuration.nix
+++ b/hosts/chaski/configuration.nix
@@ -9,7 +9,8 @@
     [ # Include the results of the hardware scan.
       ./hardware-configuration.nix
       ./services/grafana.nix
-      ./services/workadventure.nix
+      # ./services/workadventure.nix
+      ./services/exneuland.nix
     ];
 
   hexchen.deploy = {
diff --git a/hosts/chaski/services/exneuland.nix b/hosts/chaski/services/exneuland.nix
new file mode 100644
index 0000000..a0c765a
--- /dev/null
+++ b/hosts/chaski/services/exneuland.nix
@@ -0,0 +1,50 @@
+{ config, lib, pkgs, ... }:
+
+let
+  workadventure-nix = builtins.fetchGit {
+    url = "https://stuebinm.eu/git/workadventure-nix";
+    ref = "master";
+  };
+  wapkgs = import "${workadventure-nix.outPath}/wapkgs.nix" {
+    inherit pkgs;
+    lib = pkgs.lib;
+  };
+  frontdrv = wapkgs.workadventure-tcm.front.override {
+    environment = {
+      PUSHER_URL = "https://exneuland.stuebinm.eu/pusher";
+      START_ROOM_URL = "/_/global/world.di.c3voc.de/maps/main.json";
+    };
+  };
+  exneuland = import ../../../pkgs/exneuland.nix;
+in
+{
+  services.nginx = {
+    enable = true;
+    recommendedProxySettings = true;
+    virtualHosts."exneuland.stuebinm.eu" = {
+      root = "${frontdrv}/dist";
+      locations."/_/".tryFiles = "/index.html =404";
+
+      locations."/pusher" = {
+        proxyPass = "http://localhost:4000";
+        proxyWebsockets = true;
+        extraConfig = ''
+          add_header Access-Control-Allow-Origin https://exneuland.stuebinm.eu;
+        '';
+      };
+
+      enableACME = true;
+      forceSSL = true;
+    };
+  };
+
+  systemd.services.exneuland = {
+    wantedBy = [ "multi-user.target" ];
+    after = [ "network.target" ];
+    description = "exneuland backend for workadventure";
+    serviceConfig = {
+      ExecStart = "${exneuland}/bin/exneuland start";
+      Restart = "always";
+    };
+  };
+}
diff --git a/pkgs/exneuland.nix b/pkgs/exneuland.nix
new file mode 100644
index 0000000..9cd4c71
--- /dev/null
+++ b/pkgs/exneuland.nix
@@ -0,0 +1,32 @@
+let
+  sources = import ../nix/sources.nix {};
+in
+
+with import sources.nixpkgs {};
+
+let
+  packages = beam.packagesWith beam.interpreters.erlang;
+  src = fetchFromGitLab {
+    owner = "hexchen";
+    repo = "exneuland";
+    rev = "main";
+    sha256 = "0zh1vvjhzaymlngg5armhp6xqrdjmnd29hpf7c3ci03h3rg4snbq";
+  };
+
+  pname = "exneuland";
+  version = "0.0.1";
+  mixEnv = "prod";
+
+  mixDeps = packages.fetchMixDeps {
+    pname = "mix-deps-${pname}";
+    inherit src mixEnv version;
+    sha256 = "0nyips2ky6rmgq3xdhrhg4fnw4m2pmck6p1amw9m7qisdqlxhv25";
+  };
+
+in (packages.mixRelease.override {
+  elixir = (import sources.nixpkgs-unstable {}).elixir_1_12;
+}) {
+  inherit src pname version mixEnv mixDeps;
+
+  buildInputs = [ rebar3 protobuf ];
+}
-- 
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