How to parse a page into an html file and organize the data into folders?

Question

Parsing

Good evening! Guys, tell me or throw a link to a specific example of how you can parse the entire page using a simple link and get the following output:
1. Saved page in html format
2. Parse all css styles from the page and save them to a folder as a file with the css extension
3. Parse all js scripts from the page and save them to a folder as a file with the js extension
4. Parse all pictures from the page and save them to a folder
In this case, if, for example, a script, style or picture has a link like
domen.ru/folder/subfolder/name. css
was saved to a file named name in css format in the subfolder folder, which is nested in the folder folder
And how can this be done in multiparsing?