setup sops, added pg user and pass for vaultwarden
diff --git a/modules/vaultwarden.nix b/modules/vaultwarden.nix
index ca7893e..dd06d27 100644
--- a/modules/vaultwarden.nix
+++ b/modules/vaultwarden.nix
@@ -1,10 +1,34 @@
-{ pkgs, drive_paths, ... }: {
-    environment.systemPackages = with pkgs; [ vaultwarden ];
+{ pkgs, drive_paths, lib, config, ... }: {
+  environment.systemPackages = with pkgs; [ vaultwarden ];
 
-    services.vaultwarden.enable = true;
-    services.vaultwarden.dbBackend = "postgresql";
+  services.vaultwarden.enable = true;
+  services.vaultwarden.dbBackend = "postgresql";
 
-    services.vaultwarden.config = {
+  sops.secrets = lib.pipe [ "ADMIN_TOKEN", "SMTP_PASSWORD", "YUBICO_SECRET_KEY", "HIBP_API_KEY" ] [
+    (name: {
+      inherit name; value = {
+      mode = "0400";
+      owner = config.users.users.root.name;
+      group = config.users.users.nobody.group;
+      sopsFile = ../secrets/vaultwarden.json;
+      format = "json";
+    };
+    })
+    builtins.listToAttrs
+  ];
+} // (
+  let
+    isDerived = base != null;
+  in
+  if isDerived
+  # We cannot use mkIf as both sides are evaluated no matter the condition value
+  # Given we use base as an attrset, mkIf will error if base is null in here
+  then
+    with lib;
+    let
+      cfg = services.vaultwarden;
+
+      vaultwarden_config = {
         # Server Settings
         DOMAIN = "https://passwords.clicks.codes";
         ROCKET_ADDRESS = "127.0.0.1";
@@ -12,25 +36,25 @@
 
 
         # General Settings
-        SIGNUPS_ALLOWED=false;
-        INVITATIONS_ALLOWED=true;
-        SIGNUPS_DOMAINS_WHITELIST="clicks.codes,coded.codes,thecoded.prof,starrysky.fyi,hopescaramels.com,pinea.dev";
+        SIGNUPS_ALLOWED = false;
+        INVITATIONS_ALLOWED = true;
+        SIGNUPS_DOMAINS_WHITELIST = "clicks.codes,coded.codes,thecoded.prof,starrysky.fyi,hopescaramels.com,pinea.dev";
 
         # TODO: Set folder locations for storing data.
-        RSA_KEY_FILENAME="${drive_paths.root}/bitwarden/rsa_key";
-        ICON_CACHE_FOLDER="${drive_paths.root}/bitwarden/icon_cache";
-        ATTACHMENTS_FOLDER="${drive_paths.External4000HDD}/bitwarden/attachments";
-        SENDS_FOLDER="${drive_paths.External4000HDD}/bitwarden/sends";
-        TMP_FOLDER="${drive_paths.External4000HDD}/bitwarden/tmp";
+        RSA_KEY_FILENAME = "${drive_paths.root}/bitwarden/rsa_key";
+        ICON_CACHE_FOLDER = "${drive_paths.root}/bitwarden/icon_cache";
+        ATTACHMENTS_FOLDER = "${drive_paths.External4000HDD}/bitwarden/attachments";
+        SENDS_FOLDER = "${drive_paths.External4000HDD}/bitwarden/sends";
+        TMP_FOLDER = "${drive_paths.External4000HDD}/bitwarden/tmp";
 
-        DISABLE_2FA_REMEMBER=true;
+        DISABLE_2FA_REMEMBER = true;
 
         # Admin Account
-        ADMIN_TOKEN="!!ADMIN_TOKEN!!";
+        ADMIN_TOKEN = "!!ADMIN_TOKEN!!";
 
 
         # Database Settings
-        DATABASE_URL="postgresql://bitwarden:!!clicks_bitwarden_db_secret!!@127.0.0.1:${}/bitwarden";
+        DATABASE_URL = "postgresql://vaultwarden:!!clicks_bitwarden_db_secret!!@127.0.0.1:${config.services.postgresql.port}/vaultwarden";
 
 
         # Mail Settings
@@ -54,5 +78,56 @@
         # TODO: Buy a license
         # HIBP Settings
         # HIBP_API_KEY="!!HIBP_API_KEY!!";
-    };
-}
\ No newline at end of file
+      };
+
+      nameToEnvVar = name:
+        let
+          parts = builtins.split "([A-Z0-9]+)" name;
+          partsToEnvVar = parts: foldl'
+            (key: x:
+              let last = stringLength key - 1; in
+              if isList x then key + optionalString (key != "" && substring last 1 key != "_") "_" + head x
+              else if key != "" && elem (substring 0 1 x) lowerChars then # to handle e.g. [ "disable" [ "2FAR" ] "emember" ]
+                substring 0 last key + optionalString (substring (last - 1) 1 key != "_") "_" + substring last 1 key + toUpper x
+              else key + toUpper x) ""
+            parts;
+        in
+        if builtins.match "[A-Z0-9_]+" name != null then name else partsToEnvVar parts;
+
+      # Due to the different naming schemes allowed for config keys,
+      # we can only check for values consistently after converting them to their corresponding environment variable name.
+      configEnv =
+        let
+          configEnv = concatMapAttrs
+            (name: value: optionalAttrs (value != null) {
+              ${nameToEnvVar name} = if isBool value then boolToString value else toString value;
+            })
+            vaultwarden_config;
+        in
+        { DATA_FOLDER = "/var/lib/bitwarden_rs"; } // optionalAttrs (!(configEnv ? WEB_VAULT_ENABLED) || configEnv.WEB_VAULT_ENABLED == "true") {
+          WEB_VAULT_FOLDER = "${cfg.webVaultPackage}/share/vaultwarden/vault";
+      } // configEnv;
+
+      configFile = pkgs.writeText "vaultwarden.env" (concatStrings (mapAttrsToList (name: value: "${name}=${value}\n") configEnv));
+    in
+    {
+      scalpel.trafos."vaultwarden.env" = {
+        source = toString configFile;
+        matchers."ADMIN_TOKEN".secret =
+          config.sops.secrets.ADMIN_TOKEN.path;
+        matchers."SMTP_PASSWORD".secret =
+          config.sops.secrets.SMTP_PASSWORD.path;
+        matchers."YUBICO_SECRET_KEY".secret =
+          config.sops.secrets.YUBICO_SECRET_KEY.path;
+        matchers."HIBP_API_KEY".secret =
+          config.sops.secrets.HIBP_API_KEY.path;
+        matchers."clicks_bitwarden_db_secret".secret =
+          config.sops.secrets.clicks_bitwarden_db_password.path;
+        owner = config.users.users.vaultwarden.name;
+        group = config.users.groups.vaultwarden.name;
+        mode = "0400";
+      };
+
+      services.vaultwarden.environmentFile = config.scalpel.trafos."vaultwarden.env".destination;
+    } else { }
+)