Update paperless module

modules/core/networking.nix

@@ -79,8 +79,8 @@ in {
           config.pub-solar.paperless.enable
           ''
             paperless.local:80 {
-              request_header Host localhost:28981
-              reverse_proxy localhost:28981
+              request_header Host localhost:${builtins.toString config.services.paperless.port}
+              reverse_proxy localhost:${builtins.toString config.services.paperless.port}
             }
           '')
 

modules/paperless/default.nix

@@ -23,6 +23,20 @@ in {
       example = "/var/lib/paperless/consume";
       default = "/home/${psCfg.user.name}/Documents";
     };
+    scannerDefaultDevice = mkOption {
+      description = ''        The scanner device. To find this, use `scanimage -L`.
+
+                For example, your output might be the following:
+
+                ```
+                device `v4l:/dev/video3' is a Noname Logitech StreamCam virtual device
+                device `hp3900:libusb:005:002' is a Hewlett-Packard Scanjet G3010 flatbed scanner
+                ```
+
+                Here, the scannerDevice is `hp3900:libusb:005:002`.
+      '';
+      type = types.str;
+    };
   };
 
   config = mkIf cfg.enable {
@@ -30,10 +44,26 @@ in {
       enable = true;
       user = psCfg.user.name;
       consumptionDir = cfg.consumptionDir;
+      address = "paperless.local";
       extraConfig = {
         PAPERLESS_OCR_LANGUAGE = cfg.ocrLanguage;
         PAPERLESS_ADMIN_USER = psCfg.user.name;
         PAPERLESS_AUTO_LOGIN_USERNAME = psCfg.user.name;
+        PAPERLESS_URL = "http://paperless.local";
+      };
+    };
+
+    home-manager = pkgs.lib.setAttrByPath ["users" psCfg.user.name] {
+      home.packages = with pkgs; [
+        scan2paperless
+      ];
+      home.sessionVariables = {
+        SCANNER_DEFAULT_DEVICE = cfg.scannerDefaultDevice;
+        SCANNER_OUTPUT_DIR = cfg.consumptionDir;
+      };
+      systemd.user.sessionVariables = {
+        SCANNER_DEFAULT_DEVICE = cfg.scannerDefaultDevice;
+        SCANNER_OUTPUT_DIR = cfg.consumptionDir;
       };
     };
   };

pkgs/scan2paperless.nix

@@ -1,4 +1,17 @@
 self:
 with self; ''
   export PATH=${lib.makeBinPath [pkgs.coreutils pkgs.sane-frontends pkgs.sane-backends pkgs.ghostscript pkgs.imagemagick]}
+
+  while true;
+  do
+    read -p "Press Enter to continue or Ctrl+C to stop" < /dev/tty
+
+    DATETIME=$(date -Iseconds)
+    scanimage \
+      -d "''${SCANNER_DEFAULT_DEVICE}" \
+      --format=jpeg \
+      --resolution 300 \
+      --progress \
+      -o "''${SCANNER_OUTPUT_DIR}/''${DATETIME}.jpg"
+  done
 ''