Wordpress Video plugin. Part 2

The code should be written professionally, with the possibility of further extension of the plugin. Complying with SOLID principles and WordPress coding standards.

In the admin panel:

The output of all videos: http://demo.instantvideo.ru/admin/index.php?view=components&do=config&link=video

with the ability to delete / edit / publish

The output of all categories: http://demo.instantvideo.ru/admin/index.php?view=components&do=config&id=28&opt=rubric_tree

Video gallery settings: http://demo.instantvideo.ru/admin/index.php?view=components&do=config&id=28&opt=config

Ability to add video: http://demo.instantvideo.ru/video/add.html

link / file / iframe code

Video Advertising:

http://demo.instantvideo.ru/admin/index.php?view=components&do=config&id=28&opt=advertising_view

And the settings of the video providers:

http://demo.instantvideo.ru/admin/index.php?view=components&do=config&id=28&opt=providers

For the user on the site:

Page with all videos: http://demo.instantvideo.ru/video

Functions: Pagination and Search

Widgets:

Video Categories

Latest videos

Popular videos

And the last opportunity to add shortcode videos to articles or posts or widgets

I think this is necessary for a start and so far only should work with YouTube.