refactor: moved nixos modules to dendrite pattern

modules/nixos/storage/dataset.nix

@@ -0,0 +1,90 @@
+{...}: let
+  submodule = {lib, ...}: {name, ...}: {
+    options = {
+      type = lib.mkOption {
+        type = lib.types.enum ["zfs_fs" "zfs_volume"];
+        default = "zfs_fs";
+        description = "Type of ZFS dataset (filesystem or volume)";
+      };
+
+      acltype = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["off" "nfsv4" "posixacl"]);
+        default = null;
+        description = "Access control list type";
+      };
+
+      relatime = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["on" "off"]);
+        default = null;
+        description = "Controls when access time is updated";
+      };
+
+      atime = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["on" "off"]);
+        default = null;
+        description = "Controls whether access time is updated";
+      };
+
+      xattr = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["on" "off" "sa" "dir"]);
+        default = null;
+        description = "Extended attribute storage method";
+      };
+
+      compression = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["on" "off" "lz4" "gzip" "zstd" "lzjb" "zle"]);
+        default = null;
+        description = "Compression algorithm to use";
+      };
+
+      sync = lib.mkOption {
+        type = lib.types.nullOr (lib.types.enum ["standard" "always" "disabled"]);
+        default = null;
+        description = "Synchronous write behavior";
+      };
+
+      mount = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
+        description = "Controls the mount point used for this file system";
+        default = null;
+      };
+
+      encryption = {
+        enable = lib.mkEnableOption "should encryption be enabled";
+        type = lib.mkOption {
+          type = lib.types.enum ["aes-128-ccm" "aes-192-ccm" "aes-256-ccm" "aes-128-gcm" "aes-192-gcm" "aes-256-gcm"];
+          description = "What encryption type to use";
+        };
+        keyformat = lib.mkOption {
+          type = lib.types.enum ["raw" "hex" "passphrase"];
+          description = "Format of the encryption key";
+        };
+        keylocation = lib.mkOption {
+          type = lib.types.str;
+          description = "Location of the encryption key";
+        };
+      };
+
+      snapshot = {
+        # This option should set this option flag
+        autoSnapshot = lib.mkEnableOption "Enable automatic snapshots for this dataset";
+        # Creates a blank snapshot in the post create hook for rollback purposes
+        blankSnapshot = lib.mkEnableOption "Should a blank snapshot be auto created in the post create hook";
+      };
+
+      recordSize = lib.mkOption {
+        type = lib.types.nullOr lib.types.str;
+        default = null;
+        description = "Suggested block size for files in the file system";
+      };
+
+      postCreateHook = lib.mkOption {
+        type = lib.types.str;
+        default = "";
+        description = "Script to run after dataset creation";
+      };
+    };
+  };
+in {
+  flake.commonModules.storage-dataset-submodule = submodule;
+}