Bitcoin Payment Gateway

This project is based on uc_bitcoin module and bitcoin_address module from Drupal 7. The objective of assignment is to ease the workload of admin especially "view orders". A live website is at [login to view URL] and you will be given those set of codes (my version) for further improvement because there is still some known bugs:- #. (User) Bitcoin amount is not shown in Review Order during checkout #. (User) Email Invoice didn't have the qrcode shown up #. (User) Received two email notification about "Your order at [login to view URL]" and "File Download for Order# 999" #. (User) Let's say wanna print out a copy of invoice. It should be a compact version, preferably in a single A4 size paper, simple wording, proper formatting instead of the current one, see attachment #. (Admin) Order status is wrongly shown as completed even though invoice is invalid and payment received after timeout #. (Admin) Order status failed to change from pending to abandon even though no payment received after 60 minutes timeframe, in the absence confirm payment interaction #. (Admin) Order status failed to change from pending to completed, in the absence of confirm payment interaction #. (Admin) Payment/Logs registered duplicate entry about order status and current balance #. (Admin) For a valid and successful transaction, non-shippable item should mark as completed in order status whereas shippable item or mixture item should mark as payment received in order status.