[nix] allow configuration of triggers/actions in nix

flake.nix

@@ -47,7 +47,7 @@
     nixosModules.gokill = { config, lib, pkgs, ... }: 
     let
       cfg = config.services.gokill;
-      configFile = pkgs.writeText "config.json" ''${cfg.extraConfig}''; 
+      configFile = pkgs.writeText "config.json" (builtins.toJSON cfg.triggers); 
       gokill-pkg = self.packages.x86_64-linux.gokill;
     in
     {
@@ -61,6 +61,45 @@
               '';
           };
 
+          triggers = lib.mkOption {
+            description = "list of triggers";
+            default = [];
+            type = with lib.types; lib.types.listOf ( submodule {
+              options = {
+                type = lib.mkOption {
+                  type = lib.types.str;
+                };
+
+                name = lib.mkOption {
+                  type = lib.types.str;
+                };
+
+                options = lib.mkOption {
+                  type = lib.types.attrs;
+                };
+
+                actions = lib.mkOption {
+                  description = "list of actions";
+                  type = with lib.types; lib.types.listOf ( submodule {
+                    options = {
+                      type = lib.mkOption {
+                        type = lib.types.str;
+                      };
+
+                      options = lib.mkOption {
+                        type = lib.types.attrs;
+                      };
+
+                      stage = lib.mkOption {
+                        type = lib.types.int;
+                      };
+                    };
+                  });
+                };
+              };
+            });
+          };
+
           extraConfig = lib.mkOption {
             type = lib.types.str;
             description = lib.mdDoc ''
@@ -92,53 +131,30 @@
           self.nixosModules.gokill
           {
             services.gokill.enable = true;
-            services.gokill.extraConfig = ''
+            services.gokill.triggers = [
-              [
               {
-                      "type": "Timeout", 
+                type = "Timeout";
-                      "name": "custom timeout",
+                name = "custom timeout";
-                      "options": {
+                options = {
-                        "duration": 30
+                  duration =  10;
-                      },
+                };
-                      "actions": [
+                actions = [
                     {
-                              "type": "Print",
+                        type = "Timeout";
-                              "options": {
+                        options = {
-                                "message": "Stage 1 triggered. Waiting 25 seconds"
+                          duration = 5;
-                              },
+                        };
-                              "stage": 1
+                        stage = 1;
-                          },
-                          {
-                              "type": "Timeout",
-                              "options": {
-                                "duration": 20
-                              },
-                              "stage": 1
-                          },
-                          {
-                              "type": "Timeout",
-                              "options": {
-                                "duration": 5
-                              },
-                              "stage": 2
-                          },
-                          {
-                              "type": "Print",
-                              "options": {
-                                "message": "Shutdown in 5 seconds..."
-                              },
-                              "stage": 2
-                          },
-                          {
-                              "type": "Shutdown",
-                              "options": {
-                              },
-                              "stage": 3
                     }
-                      ]
+                    {
+                        type = "Shutdown";
+                        options = {
+                        };
+                        stage = 2;
                     }
-              ]
+                ];
-              '';
+              }
+            ];
             users.users.root.password = "root";
             virtualisation.vmVariant.virtualisation.graphics = false;
           }