Add DocumentWriter class

document_writer.py

+import os
+import json
+from document import Document
+
+class DocumentWriter():
+    def __init__(self, target_directory) -> None:
+        self.target = target_directory
+        os.makedirs(self.target, exist_ok=True)
+        os.makedirs(os.path.join(self.target, ".meta"), exist_ok=True)
+
+    def write_document(self, document: Document) -> None:
+        main_file_name = os.path.join(self.target, document.get_name())
+        with open(main_file_name, "w") as f:
+            f.write(document.get_main_content())
+
+        meta_file_name = os.path.join(self.target, ".meta", document.get_name() + ".json")
+        with open(meta_file_name, "w") as f:
+            f.write(json.dumps({
+                "title": document.get_title(),
+                "backlink": main_file_name,
+                "properties": document.get_attributes()
+            }))

test/test_document_writer.py

+import os
+import json
+from document_writer import DocumentWriter
+from document import Document
+
+def test_document_writer(tmp_path):
+    content = """beep
+boop
+bop
+bim"""
+    name = "test.txt"
+    title = "hello !"
+    creation_date = 1761763703219
+
+    test_document = Document()
+    test_document.set_name(name)
+    test_document.set_title(title)
+    test_document.set_main_content(content)
+    test_document.set_attribute("creation_date", creation_date)
+
+    writer = DocumentWriter(tmp_path)
+    writer.write_document(test_document)
+    with open(os.path.join(tmp_path, name)) as f:
+        assert f.read() == content
+    with open(os.path.join(tmp_path, ".meta", name + ".json")) as f:
+        meta = json.loads(f.read())
+        assert meta["title"] == title
+        assert meta["backlink"] == os.path.join(tmp_path, name)
+        assert meta["properties"] != None
+        assert meta["properties"]["creation_date"] == 1761763703219