select expence by filter

app_data.json

@@ -1,16 +1,16 @@
 [
   {
     "id": -1,
-    "type": "Income",
-    "date": "2000-11-10T00:00:00",
-    "amount": 100.1,
-    "description": "sdfsdfsgdhfgh"
+    "description": "shoping",
+    "amount": -200.75,
+    "date": "2021-01-01T00:00:00",
+    "type": "Expense"
   },
   {
     "id": -1,
-    "type": "Income",
-    "date": "2000-11-10T00:00:00",
-    "amount": 100.1,
-    "description": "d"
+    "description": "shoping",
+    "amount": 200.75,
+    "date": "2021-01-01T00:00:00",
+    "type": "Income"
   }
 ]

src/clifinance/application/dto/selector.py

@@ -0,0 +1,9 @@
+from dataclasses import dataclass
+from datetime import datetime
+
+
+@dataclass(frozen=True)
+class SelectorDTO:
+    type: str
+    date: datetime
+    amount: float

src/clifinance/application/usecases/get_expenses.py

@@ -0,0 +1,23 @@
+from clifinance.application.dto.selector import SelectorDTO
+from clifinance.domain.expense.gateway import ExpenseGateway
+from clifinance.domain.expense.model import (
+    Expense,
+    ExpenseAmount,
+    ExpenseDate,
+    ExpenseType,
+)
+
+
+class GetExpensesByFilter:
+    def __init__(
+        self,
+        gateway: ExpenseGateway,
+    ) -> None:
+        self.__gateway = gateway
+
+    def __call__(self, filter: SelectorDTO) -> list[Expense]:
+        return self.__gateway.get_all_expenses_by_filter(
+            type=ExpenseType(filter.type) if filter.type else None,
+            date=ExpenseDate(filter.date) if filter.date else None,
+            amount=ExpenseAmount(filter.amount) if filter.amount else None,
+        )

src/clifinance/domain/expense/gateway.py

@@ -1,8 +1,12 @@
 from abc import abstractmethod
-from datetime import datetime
 from typing import Protocol
 
-from clifinance.domain.expense.model import Expense, ExpenseType
+from clifinance.domain.expense.model import (
+    Expense,
+    ExpenseAmount,
+    ExpenseDate,
+    ExpenseType,
+)
 
 
 class ExpenseGateway(Protocol):
@@ -23,9 +27,18 @@ class ExpenseGateway(Protocol):
         raise NotImplementedError
 
     @abstractmethod
-    def get_all_expenses_by_date(self, date: datetime) -> list[Expense]:
+    def get_all_expenses_by_date(self, date: ExpenseDate) -> list[Expense]:
         raise NotImplementedError
 
     @abstractmethod
-    def get_all_expenses_by_price(self, price: float) -> list[Expense]:
+    def get_all_expenses_by_amount(self, amount: ExpenseAmount) -> list[Expense]:
+        raise NotImplementedError
+
+    @abstractmethod
+    def get_all_expenses_by_filter(
+        self,
+        type: ExpenseType | None,
+        date: ExpenseDate | None,
+        amount: ExpenseAmount | None,
+    ) -> list[Expense]:
         raise NotImplementedError

src/clifinance/domain/expense/model.py

@@ -53,3 +53,6 @@ class Expense(DomainEntity[ExpenseId]):
             amount=ExpenseAmount(amount),
             description=ExpenseDescription(description),
         )
+
+    def __str__(self):
+        return f"Expense(id={self.id.value}, type={self.type.value}, date={self.date.value}, amount={self.amount.value}, description={self.description.value})"

src/clifinance/infrastructure/persistence/json_gateway.py

@@ -1,8 +1,11 @@
-from datetime import datetime
-
 from clifinance.application.abstractions.protocols.session import Session
 from clifinance.domain.expense.gateway import ExpenseGateway
-from clifinance.domain.expense.model import Expense, ExpenseType
+from clifinance.domain.expense.model import (
+    Expense,
+    ExpenseAmount,
+    ExpenseDate,
+    ExpenseType,
+)
 
 
 class JsonExpenseGateway(ExpenseGateway):
@@ -22,8 +25,24 @@ class JsonExpenseGateway(ExpenseGateway):
     def get_all_expenses_by_type(self, type: ExpenseType) -> list[Expense]:
         return [x for x in self.session.get_all() if x.type == type]
 
-    def get_all_expenses_by_date(self, date: datetime) -> list[Expense]:
+    def get_all_expenses_by_date(self, date: ExpenseDate) -> list[Expense]:
         return [x for x in self.session.get_all() if x.date == date]
 
-    def get_all_expenses_by_price(self, price: float) -> list[Expense]:
-        return [x for x in self.session.get_all() if x.amount == price]
+    def get_all_expenses_by_amount(self, amount: ExpenseAmount) -> list[Expense]:
+        return [x for x in self.session.get_all() if x.amount == amount]
+
+    def get_all_expenses_by_filter(
+        self,
+        type: ExpenseType | None,
+        date: ExpenseDate | None,
+        amount: ExpenseAmount | None,
+    ) -> list[Expense]:
+
+        result = self.get_all_expenses()
+        if type is not None:
+            result = [x for x in result if x.type == type]
+        if date is not None:
+            result = [x for x in result if x.date == date]
+        if amount is not None:
+            result = [x for x in result if x.amount == amount]
+        return result

src/clifinance/infrastructure/persistence/mappers/expense.py

@@ -1,3 +1,5 @@
+from datetime import datetime
+
 from clifinance.domain.expense.model import (
     Expense,
     ExpenseAmount,
@@ -13,7 +15,7 @@ def expense_to_json(expense: Expense):
         "id": expense.id.value,
         "description": expense.description.value,
         "amount": expense.amount.value,
-        "date": expense.date,
+        "date": expense.date.value.isoformat(),
         "type": expense.type.value,
     }
 
@@ -23,6 +25,6 @@ def expense_from_json(data: dict):
         id=ExpenseId(data["id"]),
         description=ExpenseDescription(data["description"]),
         amount=ExpenseAmount(data["amount"]),
-        date=ExpenseDate(data["date"]),
+        date=ExpenseDate(datetime.fromisoformat(data["date"])),
         type=ExpenseType(data["type"]),
     )

src/clifinance/main/container.py

@@ -8,6 +8,7 @@ from clifinance.application.abstractions.protocols.driver import FileDriver
 from clifinance.application.abstractions.protocols.session import Session
 from clifinance.application.usecases.add_expense import AddExpense
 from clifinance.application.usecases.get_balance import GetBalance
+from clifinance.application.usecases.get_expenses import GetExpensesByFilter
 from clifinance.domain.expense.gateway import ExpenseGateway
 from clifinance.infrastructure.persistence.json_driver import JsonFileDriver
 from clifinance.infrastructure.persistence.json_gateway import JsonExpenseGateway
@@ -24,6 +25,10 @@ class Container:
     def provide_add_expense(self) -> Generator[AddExpense, None, None]:
         yield AddExpense(gateway=self.json_gateway())
 
+    @contextmanager
+    def provade_get_filtred_expenses(self) -> Generator[GetExpensesByFilter, None, None]:
+        yield GetExpensesByFilter(gateway=self.json_gateway())
+
     def json_gateway(self) -> ExpenseGateway:
         return JsonExpenseGateway(session=self.get_session())
 

src/clifinance/presentation/cli/commands.py

@@ -1,17 +1,26 @@
 import argparse
 
 from clifinance.application.dto.expense import ExpenseDTO
+from clifinance.application.dto.selector import SelectorDTO
 from clifinance.main.container import Container
 
 
 def get_balance(args: argparse.Namespace, ioc: Container) -> None:
     with ioc.provide_get_balance() as usecase:
         print(usecase())
-    print()
 
 
 def select_expenses(args: argparse.Namespace, ioc: Container) -> None:
-    print(args)
+    with ioc.provade_get_filtred_expenses() as usecase:
+        for expense in usecase(
+            filter=SelectorDTO(
+                type=args.__dict__.get("type", None),
+                date=args.__dict__.get("date", None),
+                amount=args.__dict__.get("amount", None),
+            )
+        ):
+
+            print(expense)
 
 
 def add_expense(args: argparse.Namespace, ioc: Container) -> None: