1 files changed, 80 insertions, 0 deletions
diff --git a/default.nix b/default.nix
new file mode 100644
index 0000000..d739a4c
--- /dev/null
+++ b/default.nix
@@ -0,0 +1,80 @@
+{config, lib, pkgs, ...}:
+let
+  picarones = import ./pkgs.nix { inherit pkgs; };
+in
+with lib;
+{
+  options.services.picarones = {
+    enable = mkOption {
+      default = false;
+      example = true;
+      type = types.bool;
+      description = "'next slide please' as a service";
+    };
+    package = mkOption {
+      description = "the server package to use";
+      default = picarones.picarones-hs;
+      type = types.package;
+    };
+    port = mkOption {
+      description = "port at which the backend server should listen.";
+      default = 9000;
+      type = types.int;
+    };
+    frontend = {
+      enable = mkOption {
+        description = "Whether to setup nginx to deliver the picarones frontend";
+        default = true;
+        type = types.bool;
+      };
+      package = mkOption {
+        description = "Which package provides the frontend app.";
+        default = picarones.picarones-elm;
+        type = types.package;
+      };
+      domain = mkOption {
+        description = "Which domain nginx should listen on.";
+        default = "";
+        type = types.str;
+      };
+      proxyBackend = mkOption {
+        description = "whether to set up a proxy for the backend using nginx (on the same domain).";
+        default = false;
+        type = types.bool;
+      };
+      config = mkOption {
+        description = "extra options for nginx.";
+        default = {};
+        type = types.attrs;
+      };
+    };
+  };
+
+  config = let cfg = config.services.picarones; in {
+    systemd.services.picarones-hs = {
+      description = "picarones backend server";
+      path = [ cfg.package ];
+      wantedBy = [ "multi-user.target" ];
+      script = ''
+        ${cfg.package}/bin/picarones-hs
+      '';
+    };
+
+    services.nginx = mkIf cfg.frontend.enable {
+      enable = true;
+      virtualHosts.${cfg.frontend.domain} = cfg.frontend.config // {
+        root =
+          # need to do it this (long) way since a user may change this value outside of this module
+          let ssl = config.services.nginx.virtualHosts.${cfg.frontend.domain}.enableSSL;
+          in (cfg.frontend.package.override {
+            baseurl = (if ssl then "https://" else "http://") + cfg.frontend.domain;
+            serverurl = (if ssl then "wss" else "ws") + "://${cfg.frontend.domain}/websocket";
+          }).outPath;
+        locations."/websocket" = {
+          proxyPass = "http://localhost:9160";
+          proxyWebsockets = true;
+        };
+      };
+    };
+  };
+}