Implement missed Catalogue rules

[babanesma]

• Each colour version of a configurable product should be listed in the catalogue. If a t-shirt has two colours, both version should be listed separately in the catalogue. However, each size version of the configurable product should not be listed separately.
• So - one product of each colour version of each base product should be listed - when the product is clicked on, the configurable product should be shown on the product details page, with the correct colour selected (the simple product detail page should not be shown).
• Configurable products need to use "Color" & "Size" as their configurable attributes. Currently the configurable attributes are "Brand", "Primary colour" & "Size".
• Catalog listing for users should display the configurable products (where colour+size can be selected) NOT the simple products. Currently the simple products are shown on the listings page (no configurable products are being created) and this is not what's required.

[ahmedReda1]

in point 3 currently it depends on (primary colour & color & size ) attributes , it does not depend on brand at all

Q: how could we implement configurable product independent on primary color for products like 10002

     "variants":[  
        {  
           "sku":"10002-offwhite-s",
           "colour":"Off White",
           "primary_colour":"white",
           "size":"S",
           "image":null
        },
        {  
           "sku":"10002-darkcharcoal-s",
           "colour":"Dark Charcoal",
           "primary_colour":"black",
           "size":"S",
           "image":null
        }

it has both primary colors (black and white) ?