feat(#168): API couples de garde parent (liste + couple courant).

Co-authored-by: Cursor <cursoragent@cursor.com>

backend/src/routes/parents/parents.service.spec.ts

@@ -1,12 +1,43 @@
+import { BadRequestException, NotFoundException } from '@nestjs/common';
 import { Test, TestingModule } from '@nestjs/testing';
+import { getRepositoryToken } from '@nestjs/typeorm';
 import { ParentsService } from './parents.service';
+import { Parents } from 'src/entities/parents.entity';
+import { Users } from 'src/entities/users.entity';
+import { DossierFamille } from 'src/entities/dossier_famille.entity';
+import { ParentsChildren } from 'src/entities/parents_children.entity';
+import { AmChildren } from 'src/entities/am_children.entity';
 
-describe('ParentsService', () => {
+describe('ParentsService — couples de garde (#168)', () => {
   let service: ParentsService;
 
+  const parentsRepository = {
+    findOne: jest.fn(),
+    update: jest.fn(),
+  };
+  const parentsChildrenRepository = {
+    find: jest.fn(),
+    findOne: jest.fn(),
+  };
+  const amChildrenRepository = {
+    find: jest.fn(),
+    findOne: jest.fn(),
+  };
+
   beforeEach(async () => {
+    jest.clearAllMocks();
     const module: TestingModule = await Test.createTestingModule({
-      providers: [ParentsService],
+      providers: [
+        ParentsService,
+        { provide: getRepositoryToken(Parents), useValue: parentsRepository },
+        { provide: getRepositoryToken(Users), useValue: {} },
+        { provide: getRepositoryToken(DossierFamille), useValue: {} },
+        {
+          provide: getRepositoryToken(ParentsChildren),
+          useValue: parentsChildrenRepository,
+        },
+        { provide: getRepositoryToken(AmChildren), useValue: amChildrenRepository },
+      ],
     }).compile();
 
     service = module.get<ParentsService>(ParentsService);
@@ -15,4 +46,107 @@ describe('ParentsService', () => {
   it('should be defined', () => {
     expect(service).toBeDefined();
   });
+
+  describe('listerCouplesGarde', () => {
+    it('retourne une liste vide si le parent n’a pas d’enfant', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: null,
+      });
+      parentsChildrenRepository.find.mockResolvedValue([]);
+
+      const res = await service.listerCouplesGarde('p1');
+      expect(res).toEqual({ couples: [], couple_courant_id: null });
+      expect(amChildrenRepository.find).not.toHaveBeenCalled();
+    });
+
+    it('mappe les placements actifs en couples et marque le courant', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: 'pl-2',
+      });
+      parentsChildrenRepository.find.mockResolvedValue([
+        { enfantId: 'e1' },
+        { enfantId: 'e2' },
+      ]);
+      amChildrenRepository.find.mockResolvedValue([
+        {
+          id: 'pl-1',
+          amId: 'am-1',
+          child: { id: 'e1', first_name: 'Léo', last_name: 'M', photo_url: null },
+          am: { user: { prenom: 'Marie', nom: 'N', photo_url: '/a.jpg' } },
+        },
+        {
+          id: 'pl-2',
+          amId: 'am-2',
+          child: { id: 'e2', first_name: 'Léa', last_name: 'M', photo_url: null },
+          am: { user: { prenom: 'Sophie', nom: 'P', photo_url: null } },
+        },
+      ]);
+
+      const res = await service.listerCouplesGarde('p1');
+      expect(res.couples).toHaveLength(2);
+      expect(res.couple_courant_id).toBe('pl-2');
+      expect(res.couples[1].courant).toBe(true);
+      expect(res.couples[0].am.prenom).toBe('Marie');
+      expect(res.couples[0].enfant.prenom).toBe('Léo');
+    });
+
+    it('404 si parent inconnu', async () => {
+      parentsRepository.findOne.mockResolvedValue(null);
+      await expect(service.listerCouplesGarde('x')).rejects.toBeInstanceOf(
+        NotFoundException,
+      );
+    });
+  });
+
+  describe('definirCoupleGardeCourant', () => {
+    it('persiste le couple si l’enfant est rattaché au parent', async () => {
+      parentsRepository.findOne.mockResolvedValue({
+        user_id: 'p1',
+        id_placement_garde_courant: null,
+      });
+      amChildrenRepository.findOne.mockResolvedValue({
+        id: 'pl-1',
+        enfantId: 'e1',
+        date_fin: null,
+      });
+      parentsChildrenRepository.findOne.mockResolvedValue({
+        parentId: 'p1',
+        enfantId: 'e1',
+      });
+      parentsRepository.update.mockResolvedValue({ affected: 1 });
+      // second call via listerCouplesGarde
+      parentsChildrenRepository.find.mockResolvedValue([{ enfantId: 'e1' }]);
+      amChildrenRepository.find.mockResolvedValue([
+        {
+          id: 'pl-1',
+          amId: 'am-1',
+          child: { id: 'e1', first_name: 'Léo', last_name: null, photo_url: null },
+          am: { user: { prenom: 'Marie', nom: null, photo_url: null } },
+        },
+      ]);
+
+      const res = await service.definirCoupleGardeCourant('p1', 'pl-1');
+      expect(parentsRepository.update).toHaveBeenCalledWith(
+        { user_id: 'p1' },
+        { id_placement_garde_courant: 'pl-1' },
+      );
+      expect(res.couple_courant_id).toBe('pl-1');
+      expect(res.couples[0].courant).toBe(true);
+    });
+
+    it('400 si le couple n’appartient pas au parent', async () => {
+      parentsRepository.findOne.mockResolvedValue({ user_id: 'p1' });
+      amChildrenRepository.findOne.mockResolvedValue({
+        id: 'pl-1',
+        enfantId: 'e99',
+      });
+      parentsChildrenRepository.findOne.mockResolvedValue(null);
+
+      await expect(
+        service.definirCoupleGardeCourant('p1', 'pl-1'),
+      ).rejects.toBeInstanceOf(BadRequestException);
+    });
+  });
 });