Add Book model class

- Init models.py
- Add Book class

openbookr/models.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+
+#######################
+# Classes description #
+#######################
+
+from collections.abc import Iterable
+from pydantic import BaseModel as BM
+
+
+class Book(BM):
+    """
+    Book model class
+    """
+
+    def __init__(self, name: str, hashkey: str) -> None:
+        """
+        :param name: Book title
+        :param hashkey: Book file hash
+        """
+        self.name = name
+        self.hashkey = hashkey
+
+    name: str
+    hashkey: str
+    author: str | None = None
+    description: str | None = None
+    mark: float | None = None
+    read_flag: bool = False
+    tags: Iterable = ()
+    genres: Iterable = ()