Create ROKU app

I need a ROKU APP with web PHP interface in server side. The php web interface server side : I want to be able to add LIVE STREAM CHANNELS with URL and IMAGE (the url will be hls - .m3u8, youtube live link) I want to be able to manage users, add the ROKU mac address to authorize users to view the content and give them 4 types of subscription (1 day, 1 month, 6 months, 1 year). and depends of each one, the channels wont be accessible if subscription expired. Also the web side, i want to be able to manage app categories, subcategories.(the name and Image of each) The roku app side : a nice UI with channels icon, when clicked we see channels type and then the last subcategory will be the channel name, image and when we click on it, it streams the link. I want the BACK button when clicked to have a popup and ask if user is sure to quit the channel.