====== reports update ======
===== upd 05-mar-23 =====
  *having working php gbod_report as a pair html + xlsx 
  *works by 2-3 faster than old c# analog, fixed bug with overlapping preview admissions
  *will re-make reports on new engine one-by-one as second fdm instance...

===== prev comments =====

I think the database is enough ok for continue; may be some things will be later added to the database, but now it's ok

I decided to leave old c# code as it's working now and  go forward with PHP + Javascript version

First things which cause troubles -- gbod and dgbos reports

HTML version of the gbod report is partially working here -- http://filmdistributionmanager.com/fdm/index.php/reviewer/gbod_data/694  \\  
(where 694 -- the id of the film AVATAR 2 in the database)

To generate XLSX files this time I wanna try to use Javascript library being running on the client side. 

Last years users computers became so much powerful so we have an opportunity to leave heavy report generation from our server. 
Or use another server to generate such reports for example using some browser on them (hetzner vps with 4gb ram).

So, now our plan the next
  *we use PHP instead of c# for updated fdm reports
  *we use Javascript to generate Excel reports instead of c# NPOI library (which eat a lot of server resources)
  *continue to use old database structure
  *continue to use old c# UI to add / edit data

Ok, I think when most reports will look and work ok our next step will be to move to php forms instead of c#, of course in the case if the speed / usability will be better. 

To be continued