WordPress Custom - Edit a theme to make sharing posts easier

Hello everyone, Hope you all guys are doing well. First of all, I need to mention that this project is for a WordPress blog that is dedicated for adult content (pornogragpix), so if you're not comfortable with that do not bid in this project. The task: The blog is dedicated for sharing videos, but we need to make things easier for publishers to share their content. The current manual sharing methode: Publisher need to share eache video manually by adding its title and embed code, thumbnails, etc. The method we're looking for: The user should only add the video code, and everything should be generated automatically. What code and from where should the title and the thumbnail be generated? Everything should be generated from the targeted video, for example: This is a video link [login to view URL] The publisher shouldn't add this whole link, but only the unique code (bxku3qcintuj) When he add that one, the title and thumbnail should be generated from that video, since that video has its own thumbnail and title as you all can see. The theme we have at our WordPress blog is already prepared with necessary files as it's visible here: [login to view URL] We just need to customize this Video URL part and make it Video Code instead and edit the backend so we can see everything work auto. Whenever the user put the video unique code, and click generate (a button we should add as well) this textbox should automatically add the embed code like this: [login to view URL] So the embed code that should be added automatically in the textbox should be added in the backend like this: <IFRAME SRC="[login to view URL]<GET THE SUBMITTED CODE>.html" FRAMEBORDER=0 MARGINWIDTH=0 MARGINHEIGHT=0 SCROLLING=NO WIDTH=640 HEIGHT=360 allowfullscreen></IFRAME> And this textbox should be non-editable as well, so the publisher can only submit the unique code and can't edit that textbox.