Shop functionality and Payment Integration. Django

Please check the requisites of the proyect in document posted in Files ([login to view URL]) You will find the project is divided in apps: the rl app which templates are in the main directory and contains all the parts of the site with static information. the account app in which all the user registration and authentication logic is found and which templates are in that same directory. the shop app in which you will find the logic for the store and its corresponding templates. what is needed: for the account app you will find that user registration, authentication through token, and logout is already done, as well as editing your account data and managing all that so what we are missing is only to send an email to the user whenever they register or edit their data. for the shop app you will find that almost all the logic is finished and the models for products, type of variations, and variations are already done, as well as the cart, and past orders. what we are missing here is that when you click on a product a bootstrap modal opens showing the details of the selected product along with its variations. Up until this point everything is already working, however we want for certain information in the front end, such as the photo, the name of the variation, and whatever additional info we might want to add changes as you select the desired variation. of course, when you first open the modal there should be an active variation selected by default, that is what we are missing basically. Aditionally, you will find that the add to cart button works, however, it is picking up only the product but not its variation or the quantity that you have selected. Past this point the idea is to show this product in the cart and go on with the payment on the next page for which the user must be authenticated so in the case its not simply redirect it to login. Once authenticated, in this new page, user must fill the address (and billing information if different from shipping address), as well as the payment info to proceed with the payment. Of course, the payment integration is needed and it will have to follow the guidelines of the local provider we have selected (we will provide said guidelines - uploaded in files). All this will be done in the page following the cart which must have the same layout as the one with the cart: (Picture - please check pictures y in document posted in Files) If payment is succesful then they will be redirected to a page indicating the success of the transaction and a summary of the order, again, with the same layout as the screenshot above but with the correspoding information. If not successful then a page indicating there has been a problem and the option to return to the previous page and retry. Of course, along with this, an email will be sent to the user confirming the order and the order will be stored with all the past orders made by the user, to be shown in the orders page, which will have a similar layout as the account settings layout: (Picture - please check pictures y in document posted in Files) Whenever a user is adding an address and payment card info there will be checkboxes asking if they want to save them in order to speed up future transactions. In case they do decide to save them then they will be visible in the account settings, where you will be also able to add more payment methods and other adresses: (Picture - please check pictures y in document posted in Files) If the user has saved addresses or payment methods they will be shown in the page following the cart in case the user wants to select them or go with a new address or card. As you can see, what we are missing is just the final steps of the store and payment plus some minor details.