build a chatbox docked on my website site - API web base

Framework : codeigniter programming language : php database : mysql chat box for my site. people can communicate with each other here and send files, but files space will be save to their phone memory end to end user group user with admin page NO THIRD PARTY DEPENDENCY you can build all in node.js milestone breakdown will be 2 only : 1. start of testing 2. upon turnover of source code milestone will only be created when milestone 1 is already available Features a Real time instant messaging chat application builds using : 1. Codeigniter framework 2. node.js socket server 3. Uses socket.io. So no continuous ajax request to load current chat data (Usually all chat application does to load/updates the current chat conversations) . Saves huge amount of Bandwidth and reduce unnecessary server load and costs. 4. Standalone application. No 3rd party dependency. 5. Multi language support 6. YouTube and Sound Cloud support 7. web api based project 8. PHP Storm IDE Support 9. Full responsive 10. Android, windows and ios Application friendly 11. Picture upload / sharing, iregardless of size big or small 12. Video upload / sharing, iregardless of size big or small 13. Link shearing with preview (open graph) 14. One to one private messaging 15. Group messaging, people who are within the group can invite people 16. Friend list system design 17. Simple database design 18. Login system is built in 19. User authentication system is built in 20. compatible in all web browser 21. retrieve old message 22. chatbox have name and timezone of the opposite chatter 23. message post in the chatbox should have time posted 24. unread message makes the friendlist name bold and indicated the number of unread messages 25. has the option to clean up the chatbox by the chatter 26. doesnot allow to recall messages 27. indication for the chatbox, one check means message delivered, 2 check means message read. 28. referral of friends list, can send friend referral of the existing friend to its own friend 29. each chatter can revise its own theme setting chatbox like, to change text (color, font, size) and add a wallpaper, and download emoticons 30. emoticon, block / unblock feature and video / voice call 31. saves in local storage, the chats 32. Docked Style Admin panel : Powerful Admin panel with 1. User List 2. Admin can block / unblock user account 3. Admin can view full user information 4. Admin can view user messages 5. Admin can create new admin / manager type admin 6. Admin can create emoticons for the selected chatter to use High Resolution Yes Compatible Browsers IE10, IE11, Firefox, Safari, Opera, Chrome, Edge, etc Files Included JavaScript JS, JavaScript JSON, HTML, CSS, PHP, SQL Software Framework CodeIgniter Software Version PHP 7.x, PHP 5.6, MySQL 5.x