Build a full public chat system using node.js with webcams/audio/text chat and full admin functions. -- 2

Hello we are looking to build a full public system that will be able to handle thousands of concurrent users. We believe node.js would be the best programming language to use as it can handle the load and is newer technology. Front end with Angular and Material design would be a nice option but open to ideas. Some of the functions needed: 1) Webcams/audio functions privately and publicly. - Those showing their webcams will have an icon beside their name. Others can view them and do not need to turn on their own webcams to view. - Private one on one webcam also allowed. (again other person does not need to turn on cam) - Webrtc might be the appropriate choice here. 2) Flood control system - repeated messages are automatically muted. - those who violate this multiple times are booted and not able to return for set period. 3) Change Avatar - system will be able to upload pictures to use as avatars and resize to system avatar specifications. User can select from pre-existing set or upload their own. 4) Guest/Registered Login System - can choose to chat as guest or can become a registered user. Integtraton with existing Mysql database systems also possible. Logging in can select gender. Guest user data are not kept. [login to view URL] Refer to [login to view URL] 5) Select font size, color, face - ability to select this by user 6) Smileys - Ability for Admin to add custom smileys to the room. - Room will also have standard smileys to choose from. 7) Advertising bot - Can set the url and text message used to advertise in the admin. Text will scroll every "x" seconds as specified in Admin panel. 8) Full Admin/Moderator system - create rooms - rename rooms - assign new moderators - can ban users - view IP addresses - kick users - mute users - add/remove by IP address 9) Ignore/Block other users - Users can block or ignore other users by selecting their name 10) Private Chat - can message users privately and open a new tab with the private chat. 11) Filter words - can block bad words set in the admin panel 12) Image transfer - ability to share image with others. Need thumbnail preview and upon click show full image - Images can automatically be pruned entirely from Admin panel - images sent can be seen under a tab. Please refer to [login to view URL] for some demo of this. Also refer to: [login to view URL] Refer to [login to view URL] 13) Userlist sorting by roles For example: Admin>Moderators>VIP>User Colors for each roles and associated icons with each role. 14) Public chat history. - Can delete them or save them 15) OAuth Social network login: - Login via major social networking such as Facebook, Gmail, Twitter. - Saved by cookies/cache to database and can remember user so they dont need to enter information again. 16) Notifications - When receiving a private message or someone @ someone they will receive a pop up message (if they turn on notifications) 17) Messages can be liked, thumbs up, etc and replied to such as [login to view URL] has. - refer to [login to view URL] 18) Idle timeout - when user has not typed or did any action for X amount of time (set in admin panel) he will be dropped from the chat. This is to save server resources. 19) Profile system - Users can set their gender, age, contact info, etc. In terms of front end look, we would like it controlled by CSS for a modern look with responsive design. I have attached some front end screenshots of what we would like it to look like. Userlist on one side, chat window on the other. Private message system to open in new window/tabs. There are 3 very important things: 1) Security (prevent people from exploiting such as flooding, or hacking, etc) 2) Stability (must be able to handle many users online at once while also camming, sending images) 3) Design (it must have a modern look and feel to it with responsive design)