From d6d819fbeed057fae0330077f2124ff8ad5e4e1a Mon Sep 17 00:00:00 2001
From: LionelB <lionel@lumographe.fr>
Date: Wed, 5 Feb 2025 12:15:12 +0100
Subject: [PATCH] feat(api): add KnowledgeElementCollection model

---
 .../models/KnowledgeElementCollection.js      | 23 +++++++
 .../models/KnowledgeElementCollection_test.js | 66 +++++++++++++++++++
 2 files changed, 89 insertions(+)
 create mode 100644 api/src/prescription/shared/domain/models/KnowledgeElementCollection.js
 create mode 100644 api/tests/prescription/shared/unit/domain/models/KnowledgeElementCollection_test.js

diff --git a/api/src/prescription/shared/domain/models/KnowledgeElementCollection.js b/api/src/prescription/shared/domain/models/KnowledgeElementCollection.js
new file mode 100644
index 00000000000..2381db6ee2d
--- /dev/null
+++ b/api/src/prescription/shared/domain/models/KnowledgeElementCollection.js
@@ -0,0 +1,23 @@
+import _ from 'lodash';
+
+import { KnowledgeElement } from '../../../../shared/domain/models/KnowledgeElement.js';
+
+class KnowledgeElementCollection {
+  constructor(knowledgeElements = []) {
+    this.knowledgeElements = knowledgeElements;
+  }
+
+  get latestUniqNonResetKnowledgeElements() {
+    return _(this.knowledgeElements)
+      .orderBy('createdAt', 'desc')
+      .reject({ status: KnowledgeElement.StatusType.RESET })
+      .uniqBy('skillId')
+      .value();
+  }
+
+  toSnapshot() {
+    return JSON.stringify(this.latestUniqNonResetKnowledgeElements.map((ke) => _.omit(ke, ['assessmentId', 'userId'])));
+  }
+}
+
+export { KnowledgeElementCollection };
diff --git a/api/tests/prescription/shared/unit/domain/models/KnowledgeElementCollection_test.js b/api/tests/prescription/shared/unit/domain/models/KnowledgeElementCollection_test.js
new file mode 100644
index 00000000000..0ba0aad87aa
--- /dev/null
+++ b/api/tests/prescription/shared/unit/domain/models/KnowledgeElementCollection_test.js
@@ -0,0 +1,66 @@
+import { buildKnowledgeElement } from '../../../../../../db/database-builder/factory/build-knowledge-element.js';
+import { KnowledgeElementCollection } from '../../../../../../src/prescription/shared/domain/models/KnowledgeElementCollection.js';
+import { KnowledgeElement } from '../../../../../../src/shared/domain/models/KnowledgeElement.js';
+import { expect } from '../../../../../test-helper.js';
+
+describe('Unit | Domain | Models | KnowledgeElementCollection', function () {
+  describe('#toSnapshot', function () {
+    it('should return a stringified JSON array of skills', function () {
+      const ke1 = buildKnowledgeElement({ skillId: 'rec1', answerId: 1, createdAt: new Date('2025-01-10'), id: 1 });
+      const ke2 = buildKnowledgeElement({ skillId: 'rec2', answerId: 2, createdAt: new Date('2025-01-11'), id: 2 });
+      const keCollection = new KnowledgeElementCollection([ke1, ke2]);
+      expect(keCollection.toSnapshot()).equal(
+        '[{"id":2,"source":"direct","status":"validated","createdAt":"2025-01-11T00:00:00.000Z","earnedPix":2,"skillId":"rec2","answerId":2,"competenceId":"recCHA789"},{"id":1,"source":"direct","status":"validated","createdAt":"2025-01-10T00:00:00.000Z","earnedPix":2,"skillId":"rec1","answerId":1,"competenceId":"recCHA789"}]',
+      );
+    });
+
+    it('should return most recent uniq skillId', function () {
+      const ke1 = buildKnowledgeElement({ skillId: 'rec1', answerId: 1, createdAt: new Date('2025-01-10'), id: 1 });
+      const ke2 = buildKnowledgeElement({ skillId: 'rec1', answerId: 2, createdAt: new Date('2025-01-11'), id: 2 });
+      const keCollection = new KnowledgeElementCollection([ke1, ke2]);
+      expect(keCollection.toSnapshot()).equal(
+        '[{"id":2,"source":"direct","status":"validated","createdAt":"2025-01-11T00:00:00.000Z","earnedPix":2,"skillId":"rec1","answerId":2,"competenceId":"recCHA789"}]',
+      );
+    });
+
+    it('should drop reset skillId', function () {
+      const ke1 = buildKnowledgeElement({
+        skillId: 'rec1',
+        answerId: 1,
+        status: KnowledgeElement.StatusType.RESET,
+        createdAt: new Date('2025-01-10'),
+        id: 1,
+      });
+      const keCollection = new KnowledgeElementCollection([ke1]);
+      expect(keCollection.toSnapshot()).equal('[]');
+    });
+  });
+
+  describe('latestUniqNonResetKnowledgeElements', function () {
+    it('should returns ke', function () {
+      const ke1 = buildKnowledgeElement({ skillId: 'rec1', answerId: 1, createdAt: new Date('2025-01-10'), id: 1 });
+      const ke2 = buildKnowledgeElement({ skillId: 'rec2', answerId: 2, createdAt: new Date('2025-01-11'), id: 2 });
+      const keCollection = new KnowledgeElementCollection([ke1, ke2]);
+      expect(keCollection.latestUniqNonResetKnowledgeElements).to.deep.equal([ke2, ke1]);
+    });
+
+    it('should drop reset skillId', function () {
+      const ke1 = buildKnowledgeElement({
+        skillId: 'rec1',
+        answerId: 1,
+        status: KnowledgeElement.StatusType.RESET,
+        createdAt: new Date('2025-01-10'),
+        id: 1,
+      });
+      const keCollection = new KnowledgeElementCollection([ke1]);
+      expect(keCollection.latestUniqNonResetKnowledgeElements).to.deep.equal([]);
+    });
+
+    it('should return most recent uniq skillId', function () {
+      const ke1 = buildKnowledgeElement({ skillId: 'rec1', answerId: 1, createdAt: new Date('2025-01-10'), id: 1 });
+      const ke2 = buildKnowledgeElement({ skillId: 'rec1', answerId: 2, createdAt: new Date('2025-01-11'), id: 2 });
+      const keCollection = new KnowledgeElementCollection([ke1, ke2]);
+      expect(keCollection.latestUniqNonResetKnowledgeElements).to.deep.equal([ke2]);
+    });
+  });
+});