Add support for multiple readers

[The4thLaw]

Work in a branch!

• Have a page to select the current reader (don’t rely on Spring Security, there’s no need to secure this). The available users could be presented in a fancy way, centered on the screen
  • Redirect to it if the user is not selected
  • Allow editing readers and adding new ones from there
  • Allow removing readers as well
  • Have a “Demyo” user by default
  • It should be possible to switch users from the menu, like in other MDL apps
    • Selection page
    • Entry in menu page
  • Mockup for the page: https://jsfiddle.net/5suonp4o/3/
• Each reader must have its reading list
• A reader can manually add items to his reading list
  • Individual Albums (if not in the wishlist)
  • Whole Series (except those in the wishlist. Don’t add the option for empty Series or Series with only wishlist items)
• Adding an Album must add it to the reading list of all readers, except if it’s in the wishlist
  • Adding an Album to the wishlist after its initial creation should remove it from the reading list
  • Removing an Album from the wishlist should add it to the reading list of all readers
• Each reader may have its favorites
  • Albums
    • Add
    • Remove
  • Series
  • use something like https://jsfiddle.net/1hzkfyrq/1/ or https://jsfiddle.net/1hzkfyrq/2/ to make the AJAX request to mark it as favorite ?
  • Allow viewing favorites of others
  • Have a menu entry showing the favorites --> dropped for now
• When an Album is in the reading list, there should be an indicator in the Series view and it should be possible to mark it from there (from the context menu). A round trip to the server is acceptable
• When an Album is in the reading list, there should be a FAB on the view page
  • Clicking on it should trigger an AJAX request to mark it. While waiting, use something like https://jsfiddle.net/1hzkfyrq/1/ or https://jsfiddle.net/1hzkfyrq/2/ . Then, use a toast to note that the Album has been marked as read
  • Add the tooltip on the FAB
  • Add the behaviour on the buttons
  • ~~~Keep the history with something like (reader_id, album_id, read_count, last_read). It could be used later to suggest favorites or things to read again~~~ --> extracted to Store the albums read by the readers. #49
• Change links from /readers/favourites/1 to /readers/1/favourites for a more "RESTy" feel
• Make a page for the reading list per user (started, not yet tested)
• Handle export
• Handle import
• ~~~Add a whole series to the reading list~~~ --> not really useful

[The4thLaw]

A few notes:

• It's not possible to add an album to the reading list from the series views because
  • The album is added automatically to the reading list when added to the library
  • The series can be added as a whole
  • It would only cost an additional click to do it from the album view (click album, open menu, click item)
• It's not possible to remove an album from the reading list from the series views because it would cost two clicks (menu, item) and the alternative has the same cost (open album, click FAB)