package nix & add module & refactor flake

.gitignore

@@ -1,3 +1,4 @@
+result
 target
 *.zip
 *.gz

flake.nix

@@ -1,44 +1,36 @@
 {
-  description = "Swhkd devel";
+  description = "Swhkd";
 
-  inputs = { nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable"; };
+  inputs = { 
+    nixpkgs.url = "github:nixos/nixpkgs/nixpkgs-unstable";
+    systems.url = "github:nix-systems/default-linux";
+  };
 
-  outputs = { self, nixpkgs, ... }:
-    let
-      pkgsFor = system:
-        import nixpkgs {
-          inherit system;
-          overlays = [ ];
-        };
+  outputs = inputs @ 
+  { self
+  , nixpkgs
+  , systems
+  , ... 
+  }:
+  let
+    eachSystem = nixpkgs.lib.genAttrs (import systems);
 
-      targetSystems = [ "aarch64-linux" "x86_64-linux" ];
-    in {
-      devShells = nixpkgs.lib.genAttrs targetSystems (system:
-        let pkgs = pkgsFor system;
-        in {
-          default = pkgs.mkShell {
-            name = "Swhkd-devel";
-            nativeBuildInputs = with pkgs; [
-              # Compilers
-              cargo
-              rustc
-              scdoc
+    pkgsFor = (system: import nixpkgs {
+      inherit system;
+      overlays = [ ];
+    });
+  in 
+  {
+    packages = eachSystem (system: {
+      default = nixpkgs.legacyPackages.${system}.callPackage ./nix/package.nix{ };
+    });
 
-              # libs
-              udev
+    defaultPackage = eachSystem (system: self.packages.${system}.default);
 
-              # Tools
-              pkg-config
-              clippy
-              gdb
-              gnumake
-              rust-analyzer
-              rustfmt
-              strace
-              valgrind
-              zip
-            ];
-          };
-        });
-    };
+    devShells = eachSystem (system: {
+      default = (pkgsFor system).callPackage ./nix/shell.nix { };
+    });
+
+    nixosModules.default = import ./nix/module.nix self;
+  };
 }

nix/module.nix

@@ -0,0 +1,69 @@
+self: {
+  config,
+  lib,
+  pkgs,
+  ...
+}:
+let
+  cfg = config.services.swhkd;
+  inherit (pkgs.stdenv.hostPlatform) system;
+
+  inherit (lib) types;
+  inherit (lib.modules) mkIf;
+  inherit (lib.options) mkOption mkEnableOption;
+
+  format = pkgs.formats.ini {};
+in {
+  options.services.swhkd = {
+    enable = mkEnableOption "Simple Wayland HotKey Daemon";
+
+    package = mkOption {
+      description = "The package to use for `swhkd`";
+      default = self.packages.${system}.default;
+      type = types.package;
+    };
+
+    cooldown = mkOption {
+      description = "The cooldown to use for `swhkd`";
+      default = 250;
+      type = types.int;
+    };
+
+    settings = mkOption {
+      description = "The config to use for `swhkd` syntax and samples could found in [repo](https://github.com/id3v1669/swhkd).";
+      default = ''
+      super + return
+        alacritty
+      '';
+      type = types.lines;
+    };
+  };
+
+  config = mkIf cfg.enable {
+    environment.systemPackages = [ cfg.package ];
+    environment.etc."swhkd/swhkdrc".text = cfg.settings;
+
+    systemd.user.services.swhkd = {
+      description = "Simple Wayland HotKey Daemon";
+      bindsTo = [ "default.target" ];
+      script = ''
+        /run/wrappers/bin/pkexec ${cfg.package}/bin/swhkd \
+          --cooldown ${toString cfg.cooldown}
+      '';
+      serviceConfig.Restart = "always";
+      wantedBy = [ "default.target" ];
+    };
+    security.polkit = {
+      enable = true;
+      extraConfig = ''
+        polkit.addRule(function(action, subject) {
+            if (action.id == "com.github.swhkd.pkexec"  &&
+                subject.local == true &&
+                subject.active == true &&) {
+                    return polkit.Result.YES;
+                }
+        });
+      '';
+    };
+  };
+}

nix/package.nix

@@ -0,0 +1,51 @@
+{ lib
+, rustPlatform
+, makeWrapper
+, pkg-config
+, udev
+, killall
+}:
+
+rustPlatform.buildRustPackage rec {
+
+  pname = "swhkd";
+  version = "1.3.0";
+
+  src = lib.cleanSource ../.;
+
+  cargoLock = {
+    lockFile = "${src}/Cargo.lock";
+    outputHashes = {
+      "sweet-0.3.0" = "sha256-swSE1CE39cGojp8HAziw0Bzjr+s4XaVU+4OqQDO60fE=";
+    };
+  };
+
+  nativeBuildInputs = [ 
+    pkg-config
+    makeWrapper
+  ];
+
+  buildInputs = [ 
+    udev
+    killall
+  ];
+
+  postInstall = ''
+    mkdir -p $out/share/polkit-1/actions
+    cat > $out/share/polkit-1/actions/com.github.swhkd.pkexec.policy <<EOF
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE policyconfig PUBLIC "-//freedesktop//DTD PolicyKit Policy Configuration 1.0//EN" "http://www.freedesktop.org/standards/PolicyKit/1/policyconfig.dtd">
+<policyconfig>
+  <action id="com.github.swhkd.pkexec">
+    <message>Authentication is required to run Simple Wayland Hotkey Daemon</message>
+    <defaults>
+      <allow_any>no</allow_any>
+      <allow_inactive>no</allow_inactive>
+      <allow_active>yes</allow_active>
+    </defaults>
+    <annotate key="org.freedesktop.policykit.exec.path">$out/bin/swhkd</annotate>
+  </action>
+</policyconfig>
+EOF
+  '';
+}

nix/shell.nix

@@ -0,0 +1,26 @@
+{pkgs}:
+pkgs.mkShell {
+  name = "Swhkd-devel";
+  nativeBuildInputs = with pkgs; [
+    # Compilers
+    cargo
+    rustc
+    scdoc
+
+    # libs
+    udev
+
+    # Tools
+    cargo-audit
+    cargo-deny
+    pkg-config
+    clippy
+    gdb
+    gnumake
+    rust-analyzer
+    rustfmt
+    strace
+    valgrind
+    zip
+  ];
+}