Update

config.py

@@ -0,0 +1,74 @@
+from argparse import Namespace
+from os.path import exists
+import json
+try:
+    from functools import cached_property
+except Exception:
+    cached_property = property
+
+
+class Config:
+    def __init__(self, cfg_path: str):
+        self._path = cfg_path
+        self._data = {}
+        self._args = Namespace()
+        if exists(cfg_path):
+            with open(cfg_path, 'r', encoding='UTF-8') as f:
+                self._data = json.load(f)
+        else:
+            self._data['db'] = 'cwm.db'
+            self._data['save_to_config'] = True
+            self._data['export_chapter_template'] = 'exported/<book_id>/<chapter_id>.txt'  # noqa: E501
+            self.save()
+
+    def add_args(self, args: Namespace):
+        self._args = args
+
+    def get_arg(self, key: str, default):
+        x = getattr(self._args, key, None)
+        if x is not None:
+            if self.save_to_config:
+                self._data[key] = x
+            return x
+        if key in self._data:
+            return self._data[key]
+        else:
+            return default
+
+    @cached_property
+    def booksnew(self):
+        return self.get_arg('booksnew', None)
+
+    @cached_property
+    def chapter_id(self):
+        return getattr(self._args, 'cid', None)
+
+    @cached_property
+    def cwmdb(self):
+        return self.get_arg('cwmdb', None)
+
+    @cached_property
+    def db(self):
+        return self.get_arg('db', 'cwm.db')
+
+    @cached_property
+    def export_chapter_template(self):
+        return self.get_arg('export_chapter_template', 'exported/<book_id>/<chapter_id>.txt')  # noqa: E501
+
+    def get_export_chapter(self, chapter):
+        temp = self.export_chapter_template
+        for k in chapter.keys():
+            temp = temp.replace(f'<{k}>', str(chapter[k]))
+        return temp
+
+    @cached_property
+    def key(self):
+        return self.get_arg('key', None)
+
+    @cached_property
+    def save_to_config(self):
+        return getattr(self._args, 'save_to_config', True)
+
+    def save(self):
+        with open(self._path, 'w', encoding='UTF-8') as f:
+            json.dump(self._data, f, ensure_ascii=False)