feat(projects): add project-specific member rates

apps/workspaces/tests/test_rates.py

@@ -4,7 +4,7 @@ from django.core.cache import cache
 from django.test import TestCase
 from rest_framework.test import APITestCase
 
-from apps.projects.models import Project
+from apps.projects.models import Project, ProjectAccess, ProjectUserRate
 from apps.time_entries.services.rates import resolve_rate
 from apps.users.models import User
 from apps.workspaces.models import (
@@ -78,6 +78,53 @@ class WorkspaceRateTests(APITestCase):
         self.assertIsNone(hourly_rate)
         self.assertEqual(currency, "")
 
+    def test_resolve_rate_prefers_project_user_rate_when_member_has_access(self):
+        WorkspaceUserRate.objects.create(
+            workspace=self.workspace,
+            user=self.member,
+            hourly_rate=Decimal("40.00"),
+            currency="EUR",
+            effective_from=self.project.created_at,
+            is_active=True,
+        )
+        ProjectAccess.objects.create(project=self.project, user=self.member)
+        ProjectUserRate.objects.create(
+            project=self.project,
+            user=self.member,
+            hourly_rate=Decimal("55.00"),
+            currency="USD",
+            effective_from=self.project.created_at,
+            is_active=True,
+        )
+
+        hourly_rate, currency = resolve_rate(self.member, self.project)
+
+        self.assertEqual(hourly_rate, Decimal("55.00"))
+        self.assertEqual(currency, "USD")
+
+    def test_resolve_rate_ignores_project_user_rate_without_access(self):
+        WorkspaceUserRate.objects.create(
+            workspace=self.workspace,
+            user=self.member,
+            hourly_rate=Decimal("40.00"),
+            currency="EUR",
+            effective_from=self.project.created_at,
+            is_active=True,
+        )
+        ProjectUserRate.objects.create(
+            project=self.project,
+            user=self.member,
+            hourly_rate=Decimal("55.00"),
+            currency="USD",
+            effective_from=self.project.created_at,
+            is_active=True,
+        )
+
+        hourly_rate, currency = resolve_rate(self.member, self.project)
+
+        self.assertEqual(hourly_rate, Decimal("40.00"))
+        self.assertEqual(currency, "EUR")
+
     def test_admin_can_manage_workspace_user_rates(self):
         self.client.force_authenticate(user=self.admin)