[13.0][IMP]storage_image_product: main image of the variant

storage_image_product/models/product_product.py

@@ -55,6 +55,16 @@ def _compute_main_image_id(self):
             record.main_image_id = record._get_main_image()
 
     def _get_main_image(self):
+        match_image = self.variant_image_ids.filtered(
+            lambda i: i.attribute_value_ids
+            == self.mapped(
+                "product_template_attribute_value_ids.product_attribute_value_id"
+            )
+        )
+        if match_image:
+            return fields.first(
+                match_image.sorted(key=lambda i: (i.sequence, i.image_id))
+            ).image_id
         return fields.first(
             self.variant_image_ids.sorted(key=lambda i: (i.sequence, i.image_id))
         ).image_id

storage_image_product/tests/test_product_image_relation.py

@@ -114,3 +114,39 @@ def test_main_image_and_urls(self):
             (self.logo_image, self.product_b),
         )
         self._test_main_images_and_urls(expected)
+
+    def test_main_image_attribute(self):
+        """
+        Attach the image to the template and check the first image of the
+        variant is the one with same attributes
+        """
+        self.env["product.image.relation"].create(
+            {
+                "product_tmpl_id": self.template.id,
+                "image_id": self.logo_image.id,
+                "sequence": 1,
+            }
+        )
+        self.env["product.image.relation"].create(
+            {
+                "product_tmpl_id": self.template.id,
+                "image_id": self.white_image.id,
+                "attribute_value_ids": [
+                    (
+                        6,
+                        0,
+                        [
+                            self.env.ref("product.product_attribute_value_4").id,
+                            self.env.ref("product.product_attribute_value_1").id,
+                        ],
+                    )
+                ],
+                "sequence": 10,
+            }
+        )
+        # The variant should not take the only with the lowest sequence but
+        # the one with same attributes
+        expected = ((self.white_image, self.product_b),)
+        self._test_main_images_and_urls(expected)
+        expected = ((self.logo_image, self.product_c + self.product_a),)
+        self._test_main_images_and_urls(expected)