feat: Add Advanced Conversation Filters (#3239)

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>
Co-authored-by: Pranav Raj S <pranav@chatwoot.com>
Co-authored-by: Tejaswini <tejaswini@chatwoot.com>

app/javascript/dashboard/helper/specs/filterQueryGenerator.spec.js

@@ -0,0 +1,68 @@
+import filterQueryGenerator from '../filterQueryGenerator';
+
+const testData = [
+  {
+    attribute_key: 'status',
+    filter_operator: 'equal_to',
+    values: [
+      { id: 'pending', name: 'Pending' },
+      { id: 'resolved', name: 'Resolved' },
+    ],
+    query_operator: 'and',
+  },
+  {
+    attribute_key: 'assignee',
+    filter_operator: 'equal_to',
+    values: {
+      id: 3,
+      account_id: 1,
+      auto_offline: true,
+      confirmed: true,
+      email: 'fayazara@gmail.com',
+      available_name: 'Fayaz',
+      name: 'Fayaz',
+      role: 'agent',
+      thumbnail:
+        'https://www.gravatar.com/avatar/a35bf18a632f734c8d0c883dcc9fa0ef?d=404',
+    },
+    query_operator: 'and',
+  },
+  {
+    attribute_key: 'id',
+    filter_operator: 'equal_to',
+    values: 'This is a test',
+    query_operator: null,
+  },
+];
+
+const finalResult = {
+  payload: [
+    {
+      attribute_key: 'status',
+      filter_operator: 'equal_to',
+      values: ['pending', 'resolved'],
+      query_operator: 'and',
+    },
+    {
+      attribute_key: 'assignee',
+      filter_operator: 'equal_to',
+      values: [3],
+      query_operator: 'and',
+    },
+    {
+      attribute_key: 'id',
+      filter_operator: 'equal_to',
+      values: ['This is a test'],
+      query_operator: null,
+    },
+  ],
+};
+
+describe('#filterQueryGenerator', () => {
+  it('returns the correct format of filter query', () => {
+    expect(filterQueryGenerator(testData)).toMatchObject(finalResult);
+    expect(
+      filterQueryGenerator(testData).payload.every(i => Array.isArray(i.values))
+    ).toBe(true);
+  });
+});