Fix/debts date

authentication/serializers.py

@@ -8,6 +8,12 @@ class Meta:
         fields = ["user_id", "first_name", "phone", "email"]
 
 
+class UserMinimalSerializer(serializers.ModelSerializer):
+    class Meta:
+        model = User
+        fields = ["user_id", "first_name"]
+
+
 class RegisterSerializer(serializers.Serializer):
     name = serializers.CharField(max_length=150)
     phone = serializers.CharField(max_length=15)

debt/admin.py

@@ -1,3 +1,12 @@
 from django.contrib import admin
+from .models import Debt
 
-# Register your models here.
+
+class DebtAdmin(admin.ModelAdmin):
+    list_display = ("user", "debtor", "amount", "is_paid", "created_at", "updated_at")
+    list_filter = ("is_paid", "created_at", "updated_at")
+    search_fields = ("user__username", "debtor__username", "amount")
+    readonly_fields = ("created_at", "updated_at")
+
+
+admin.site.register(Debt, DebtAdmin)

debt/migrations/0002_debt_created_at_debt_description_debt_updated_at.py

@@ -0,0 +1,29 @@
+# Generated by Django 5.0.6 on 2024-07-01 19:04
+
+import django.utils.timezone
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    dependencies = [
+        ("debt", "0001_initial"),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name="debt",
+            name="created_at",
+            field=models.DateTimeField(auto_now_add=True, default=django.utils.timezone.now),
+            preserve_default=False,
+        ),
+        migrations.AddField(
+            model_name="debt",
+            name="description",
+            field=models.CharField(blank=True, max_length=255, null=True),
+        ),
+        migrations.AddField(
+            model_name="debt",
+            name="updated_at",
+            field=models.DateTimeField(auto_now=True),
+        ),
+    ]

debt/models.py

@@ -6,4 +6,7 @@ class Debt(models.Model):
     user = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="debts")
     debtor = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="owed_debts")
     amount = models.IntegerField()
+    description = models.CharField(max_length=255, blank=True, null=True)
     is_paid = models.BooleanField(default=False)
+    created_at = models.DateTimeField(auto_now_add=True)
+    updated_at = models.DateTimeField(auto_now=True)

debt/serializers.py

@@ -1,5 +1,5 @@
 from rest_framework import serializers
-from authentication.serializers import UserSerializer
+from authentication.serializers import UserSerializer, UserMinimalSerializer
 from .models import Debt
 
 
@@ -16,3 +16,13 @@ class Meta:
 class UserDebtSerializer(serializers.Serializer):
     user_id = serializers.CharField(read_only=True)
     first_name = serializers.CharField(read_only=True)
+
+
+class UnpaidDebtsHistorySerializer(serializers.ModelSerializer):
+    user = UserMinimalSerializer(read_only=True)
+    debtor = UserMinimalSerializer(read_only=True)
+
+    class Meta:
+        model = Debt
+        fields = ["id", "user", "debtor", "amount", "description", "is_paid", "created_at"]
+        read_only_fields = ["user", "debtor"]

debt/services/debt_services.py

@@ -1,5 +1,7 @@
 from debt.models import Debt
 from django.contrib.auth import get_user_model
+from datetime import timedelta
+from django.utils import timezone
 
 User = get_user_model()
 
@@ -62,11 +64,15 @@ def toggle_debt_payment(debt_id):
         raise ValueError("Debt not found")
 
 
-def get_debt_history(user_id, other_user_id):
-    user = User.objects.get(user_id=user_id)
-    other_user = User.objects.get(user_id=other_user_id)
+def get_unpaid_debts_by_week(user_id):
+    now = timezone.now()
+    start_of_week = (now - timedelta(days=now.weekday())).replace(hour=0, minute=0, second=0, microsecond=0)
+    start_of_last_week = start_of_week - timedelta(weeks=1)
 
-    debts_as_user = Debt.objects.filter(user=user, debtor=other_user)
-    debts_as_debtor = Debt.objects.filter(user=other_user, debtor=user)
+    present_week_debts = Debt.objects.filter(user__user_id=user_id, is_paid=False, created_at__gte=start_of_week)
+    last_week_debts = Debt.objects.filter(
+        user__user_id=user_id, is_paid=False, created_at__gte=start_of_last_week, created_at__lt=start_of_week
+    )
+    previous_debts = Debt.objects.filter(user__user_id=user_id, is_paid=False, created_at__lt=start_of_last_week)
 
-    return debts_as_user.union(debts_as_debtor)
+    return present_week_debts, last_week_debts, previous_debts

debt/urls.py

@@ -13,5 +13,9 @@
     path("balance/<str:other_user_id>/", DebtViewSet.as_view({"get": "balance"}), name="debt-balance"),
     path("settle/<str:other_user_id>/", DebtViewSet.as_view({"post": "settle"}), name="debt-settle"),
     path("toggle-payment/<str:debt_id>/", DebtViewSet.as_view({"put": "toggle_payment"}), name="debt-toggle-payment"),
-    path("history/<str:other_user_id>/", DebtViewSet.as_view({"get": "history"}), name="debt-history"),
+    path(
+        "unpaid-history/<str:other_user_id>/",
+        DebtViewSet.as_view({"get": "unpaid_history"}),
+        name="debt-unpaid-history",
+    ),
 ]

debt/views.py

@@ -1,5 +1,5 @@
 from rest_framework import viewsets
-from .serializers import DebtSerializer, UserDebtSerializer
+from .serializers import DebtSerializer, UserDebtSerializer, UnpaidDebtsHistorySerializer
 from .models import Debt
 from django.contrib.auth import get_user_model
 from authentication.decorators import cognito_authenticated
@@ -13,7 +13,7 @@
     calculate_balance,
     settle_debts,
     toggle_debt_payment,
-    get_debt_history,
+    get_unpaid_debts_by_week,
 )
 
 User = get_user_model()
@@ -74,9 +74,15 @@ def toggle_payment(self, request, debt_id=None):
             return Response({"error": str(e)}, status=status.HTTP_404_NOT_FOUND)
 
     @cognito_authenticated
-    @action(detail=False, methods=["get"], url_path="history/(?P<other_user_id>[^/.]+)")
-    def history(self, request, other_user_id=None):
+    @action(detail=False, methods=["get"], url_path="unpaid-history/(?P<other_user_id>[^/.]+)")
+    def unpaid_history(self, request, other_user_id=None):
         user_id = get_user_id_from_token(request)
-        debts = get_debt_history(user_id, other_user_id)
-        serializer = DebtSerializer(debts, many=True)
-        return Response(serializer.data, status=status.HTTP_200_OK)
+        present_week_debts, last_week_debts, previous_debts = get_unpaid_debts_by_week(user_id)
+
+        response_data = {
+            "present_week": UnpaidDebtsHistorySerializer(present_week_debts, many=True).data,
+            "last_week": UnpaidDebtsHistorySerializer(last_week_debts, many=True).data,
+            "previous_weeks": UnpaidDebtsHistorySerializer(previous_debts, many=True).data,
+        }
+
+        return Response(response_data, status=status.HTTP_200_OK)