Add formatters for Company, Category, Item models.

src/fmt/category_formatter.py

@@ -0,0 +1,23 @@
+from src.fmt.abstract_formatter import AbstractFormatter
+from src.fmt.item_formatter import ItemFormatter
+
+class CategoryFormatter(AbstractFormatter):
+    def format(self, category) -> str:
+        name = category['name']
+        return f"#### {name}\n"
+
+    def format_all(self, cities: dict, header: str = "# Категорії\n\n") -> str:
+        formated_message = header
+
+        item_formatter = ItemFormatter()
+
+        for category in cities['data']:
+            formated_category = self.format(category)
+            formated_message += formated_category
+
+            if 'items' in category:
+                formated_items = item_formatter.format_all(category['items'])
+                formated_message += formated_items
+
+        return formated_message
+

src/fmt/company_formatter.py

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+from src.fmt.city_formatter import CityFormatter
+
+class CompanyFormatter(CityFormatter):
+    def format_all(self, companies: dict, header: str = "# Компанії\n\n") -> str:
+        formated_message = header
+
+        for company in companies['data']:
+            formated_item = self.format(company)
+            formated_message += formated_item
+
+        return formated_message
+

src/fmt/item_formatter.py

@@ -0,0 +1,19 @@
+from src.fmt.abstract_formatter import AbstractFormatter
+
+class ItemFormatter(AbstractFormatter):
+    def format(self, item) -> str:
+        name = item['name']
+        price = item['price']
+        return f"- {name} - {price} ₴\n"
+
+    def format_all(self, items: dict, header: str = "") -> str:
+        formated_message = header
+
+        items = items['data'] if 'data' in items else items
+        
+        for item in items:
+            formated_item = self.format(item)
+            formated_message += formated_item
+
+        return formated_message
+