How to take BTC as E-COM payment: not as dumb a question as it sounds...

OK, I feel dumb asking this, but I am hitting a wall finding a solution so figured I would ask.

When I google "BTC shopping chart" or what not I find the middle people services like Bitpay and a dozen other "funds deposited directly to your bank account" services. But that is not what I want.

I want to "accept BTC" and have the funds "paid to my BTC wallet". Mine, not a mandatory middleman.

Now I could just generate a "qr code" like people would scan for POS transactions, but I want to do this for a small biz website. Manual all the same codes would be a nightmare in figuring out what order/who paid, and so on.

Is there a form or something that like a shopping chart would generate an order ID and create a FOR THIS TRACTION BTC address that the customer could scan like I do in so many places when I pay with BTC, that would then end up in my master wallet I designate? And create a back-end database of X person paid here is the order info so can do what I need to from that point?

Again I am ok with BTC > BTC for the transaction, I just need the logistics of DEAD INCOMPLETE ORDER Vs PAID Vs PENDING and who is who as far as what is going on with the orders like a shopping chart would do straitened out. And for that all I am finding the BTC-Merchant Services: in theory if you do not want USD you should not need those middle people to do this.

Am I just not finding the "TAKE BTC" solution? Or is there not one? I can do this POS, but at POS I know you are you and what were are trading: I need to be able to do the same trade E-COM where I won't know you or you or what you wanted unless something tells me that.

It would also be nice if I could pick BTC BASED PRICE or USD BASED PRICE: because at times one may make more sense than the other.

Any help on letting me take BTC as payment on the site is very much appreciated.