photoassistant/TODO

## GENERAL
    * for below.. make Options( request )
        - know that a view is a "path", dont rely on orig_url
        - remove all "Options()" that are not set by a user-choice in the F/E and just make sure new "Options" sets all defaults as needed
        -- viewlist can work out new view_eids server side, and pass them back as json data
            - can consider an optim-- new_view page makes calls to viewlist to ADD json data only, so only trigger a new "viewlist" if we dont have data for that part of the eids

    * going forward into search page (and probably all POSTs) does not work 
        don't render_template instead do a redirect to a GET of the new, or list? for del...
            files.py:@app.route("/view/<id>", methods=["POST"])
                - first pass -- fails on storage in prod (view_eids was NONE, but prefs had content, odd... ALSO in dev, it did have a list but the img we were viewing was not in the list!
                files.py:@app.route("/viewlist", methods=["POST"])
                    -- this will need a total rewrite for viewer to handle fullscreen across offset/size boundaries  so fix that instead
            job.py:@app.route("/jobs", methods=["GET", "POST"])
            job.py:@app.route("/job/<id>", methods=["GET","POST"])
                -- these ned to store 'job prefs' somewhere...
            files.py:@app.route("/fix_dups", methods=["POST"])

    * optim to not run_ai_on_* for scan, needs to make sure last run_ai_on actually ran/worked - might have failed (or in my case was marked stale and I cancelled it)
        -- also the case for get file details though, need to make sure last one was completed

    * per file you could select an unknown face and add it as a ref img to an existing person, or make a new person and attach?
        * [DONE] order/ find face with largest size and at least show that as unmatched
            - could also try to check it vs. other faces, if it matches more than say 10? we offer it up as a required ref img, then cut that face (with margin) out and use it is a new ref image / person
        * on viewer: allow face to be used to create person, add to existing person, and allow 'ignore', mark as 'not a face', etc. -> all into DB
            - so need face 'treatment' -> could be matched via face_refimg_link, but also could be 'ignore' or 'not a face', in each case we could exclude those faces from
            matching for the future, and reporting on matches, etc.
            - context-menu with rects on a canvas
                https://stackoverflow.com/questions/31601393/create-context-menu-using-jquery-with-html-5-canvas
            - also allow joblog search from the viewer for that file...

    * delete folder

    * allow joblog search

    * in Fullscreen mode and next/prev dropped out of FS when calling /viewlist route
        -- only way to fix this, is for when we POST to viewlist, it returns json, and we never leave /view/X
        -- then we can stay on-page, and stay in FS and then just call ViewImageOrVide()

    GUI overhaul?
        * on a phone, the files.html page header is a mess "Oldest.." line is too  large to fit on 1 line (make it a hamburger?)
            - searched for text overlaps buttons above and below
            - < 10 files > is subsequently not centered
                - the fodler/bin icons might be best below search then? (and on same line as  XS/S, etc.)
        * when search, have a way to hide deleted files
            -> not sure where to put this on GUI, its so busy...

    * metadata at folder level with file level to add more richness
        - store in DB? or store in hidden file (or both)... IF it is outside the DB, then I can 'rebuild' the DB at anytime from scratch

    * dont allow me to stupidly move a folder to itself

    * get build process to create a random string for secret for PROD, otherwise use builtin for dev

    * deal with changing/adding/removing a path in settings

    * dup issues:
        * when we have lots of dups, sort the directories by alpha so its consistent when choosing
        * auto-detect has 0 choices to keep 0 files -- not sure what that was about really

    * comment your code -> only html files remaining

    * read that guys face matching / clustering / nearest neighbour examples, for a whole new AI capability
            https://www.pyimagesearch.com/2018/07/09/face-clustering-with-python/

    * fix up logging in general

    * support animated gifs in html5 canvas 

    * think about security - in job_mgr anywhere I can os.replace/remove NEED to protect, etc

## DB	
    * Dir can have date in the DB, so we can do Oldest/Newest dirs in Folder view

### BACKEND
    * revisit SymlinkName() and make it simpler (see comment in shared.py)

    *** Need to use thread-safe sessions per Thread, half-assed version did not work

        Admin
            -> do I want to have admin roles/users?
            -> purge deleted files (and associated DB data) needs a dbox or privs

### AI
    * faces per file (need a threshold for too many? OR
    * consider size of bbox of face / 'high-quality' faces -- if face is too small in image, dont match it

### UI
    * viewer needs to allow toggle to scan_model (and prob. right-click on file... AI (with CNN) AI (with hog)
        - make the form-select AI_Model actually do the change (but need more mem on mara really)

    For AI / rescan:
        way to override per file:
            the model used [partial - UI done, need mem on mara]
            the threshold used?
        maybe on the per file you could select an unknown face and add it as a ref img to a existing person, or make a new person and attach?

    file details is sort of crap - only works on import path
        - probably better to have a different 'view', e.g. folders/flat/detailed

    timelineview? (I think maybe sunburst for large amounts of files, then maybe something more timeline-series for drilling in?)
        (vertical timeline, date has thumbnails (small) horizontally along
        a page, etc.?
    https://www.highcharts.com/docs/chart-and-series-types/timeline-series
    https://www.highcharts.com/demo/sunburst
    https://www.highcharts.com/demo/heatmap
    https://www.highcharts.com/demo/packed-bubble-split


### SORTER
	* exif processing?
		* location stuff - test a new photo from my camera out
        -- image is in dir, need to look at exifread output

### FUTURE:
    * can emby use nfo for images (for AI/tags?)
        -NO sadly