Add item_manager.py

cli/item_manager.py

@@ -0,0 +1,75 @@
+#!/usr/bin/env python3
+""" This is a simple example of a class that manages items. """
+from dataclasses import dataclass
+from typing import List, Dict, Any
+
+@dataclass
+class Item:
+    """ This is a simple class that represents an item. """
+    id: str
+    name: str
+    json_data: Dict[str, Any]
+
+class ItemManager:
+    """ This is a simple class that manages items. """
+    def __init__(self):
+        self.items_by_id: Dict[str, Item] = {}
+        self.ordered_items: List[Item] = []
+
+    def add_item(self, item: Item):
+        if item.id not in self.items_by_id:
+            self.items_by_id[item.id] = item
+            self.ordered_items.append(item)
+            print(f"Item added: {item}")
+        else:
+            print(f"Item with ID {item.id} already exists.")
+
+    def add_items_from_json_list(self, json_list: List[Dict[str, Any]]):
+        for json_obj in json_list:
+            item = Item(id=json_obj['id'], name=json_obj['name'], json_data=json_obj)
+            self.add_item(item)
+
+    def remove_item_by_id(self, item_id: str):
+        if item_id in self.items_by_id:
+            item_to_remove = self.items_by_id.pop(item_id)
+            self.ordered_items = [item for item in self.ordered_items if item.id != item_id]
+            print(f"Item removed: {item_to_remove}")
+        else:
+            print(f"Item with ID {item_id} not found.")
+
+    def fetch_more_items_and_add(self, json_list: List[Dict[str, Any]]):
+        for json_obj in json_list:
+            item = Item(id=json_obj['id'], name=json_obj['name'], json_data=json_obj)
+            if item.id not in self.items_by_id:
+                self.add_item(item)
+
+    def get_all_items(self) -> List[Item]:
+        return self.ordered_items
+
+
+def main():
+    item_manager = ItemManager()
+
+    json_list_1 = [
+        {"id": "1", "name": "Item1", "data": {"key1": "value1"}},
+        {"id": "2", "name": "Item2", "data": {"key2": "value2"}},
+        {"id": "1", "name": "Item1", "data": {"key1": "value1"}}
+    ]
+
+    item_manager.add_items_from_json_list(json_list_1)
+
+    json_list_2 = [
+        {"id": "3", "name": "Item3", "data": {"key3": "value3"}},
+        {"id": "4", "name": "Item4", "data": {"key4": "value4"}}
+    ]
+
+    item_manager.fetch_more_items_and_add(json_list_2)
+
+    item_manager.remove_item_by_id("2")
+
+    all_items = item_manager.get_all_items()
+    for item in all_items:
+        print(item)
+
+if __name__ == "__main__":
+    main()