sorter.py

from server import *

@app.route('/sort/log')
@register_navbar('Sortierlog', icon='sort-by-attributes-alt')
@mod_required
def sort_log():
	return render_template('sortlog.html',sortlog=query('''
			SELECT 
				sortlog.*,
				lectures.id as lecture_id,
				lectures.title as lecture_title,
				lectures.course_id as course_id, 
				courses.title as course_title
			FROM sortlog 
			JOIN lectures ON lectures.id = sortlog.lecture_id
			JOIN courses ON courses.id = lectures.course_id 
			ORDER BY sortlog.`when`
		'''))


@app.route('/sort/now')
@mod_required
def sort_now():
	courses = query('SELECT * FROM courses')
	formats = query('SELECT * FROM formats ORDER BY prio')
	for c in courses:
		existingvideos = query('SELECT videos.path FROM videos JOIN lectures ON (videos.lecture_id = lectures.id) WHERE lectures.course_id = ?',c['id'])
		lectures = query('SELECT * from lectures where course_id = ?',c['id'])
		coursepath = config['VIDEOMOUNT']+c['handle']
		try:
			files = os.listdir(coursepath)
		except FileNotFoundError:
			files = []

		for f in files:
			# if the video is in the table "videos" already, skip it
			exists = False
			for e in existingvideos:
				# vpnonline/08ws-swt/08ws-swt-081118.mp4
				e_filename =  e['path'].split('/',2)[1]
				if f == e_filename:
					exists = True
					break
			if exists:
				continue

			filepath = coursepath + '/' + f
			# filenames: <handle>-<sorter>-<format>.mp4
			# sorter musst be found with fuzzy matching. musst be one or more of the following: (inside the loop)
			splitfilename = f.split('-')
			if not	os.path.splitext(f)[1] == '.mp4':
				continue
			data = {'keywords': []}
			# parse the file name and save all data in 'data'
			for s in splitfilename:
				#-<YYMMDD> (date)
				#-<HHMM> (time)
				#-<keyword>
				#	Looking for keywords in: id,title,speaker,comment, comma seperated list in internal starting with "tags:" (in this order). first match counts
				if len(s) == 6:
					try:
						data['date'] = datetime.strptime(s,'%y%m%d').date()
					except ValueError:
						pass
				elif  len(s) == 4:
					try:
						data['time'] = datetime.strptime(s,'%H%M').time()
					except ValueError:
						pass
				else:	
					data['keywords'].append(s)
			# try to match the file on a single lecture
			matches = []
			
			# first try date and time (if one of them is set)
			if 'date' in data:
				for l in lectures:
					if (l['time'].date() == data['date']) or (('time' in data) and l['time'] == datetime.combine(data['date'],data['time'])) :
						matches.append(l)
			# if we can't match based on date and time, we have to match keywords
			if ((len(matches) != 1) and (len(data['keywords']) > 0)):
				found = False
				for field in ['id','title','speaker','comment','internal']:
					#only test lectures with the correct date/time
					for l in matches:
						for k in data['keywords']:
							if (k == l[field]) or (k in str(l[field])):
								found = True
								matches = [l]
							if found:
								break
						if found:
							break
					if found:
						break
			# now we should have found exactly one match
			if len(matches) == 1:
				# now match the format
				for i in formats:
					#we match the last part of the file name without the extension
					formatstring = splitfilename[-1].split('.',1)[0]
					if splitfilename[-1].split('.',1)[0] in i['keywords'].split(','):
						data['format'] = i['id']
						break
				# if we found the format, insert the video
				if 'format' in data:
					modify('BEGIN')
					video_id = modify('INSERT INTO videos_data (lecture_id,visible,path,video_format,title,comment,internal,file_modified,time_created,time_updated,created_by,hash) VALUES (?,0,?,?,"","","",?,?,?,?,"")',matches[0]['id'],c['handle']+'/'+f,data['format'],datetime.now(),datetime.now(),datetime.now(),session['user']['givenName'])
					query('INSERT INTO sortlog (lecture_id,video_id,path,`when`) VALUES (?,?,?,?)',matches[0]['id'],video_id,c['handle']+'/'+f,datetime.now())
					modify('COMMIT')
					print('sorted',[data,f])
				else:
					print('unknown format',formatstring,[data,f])
			else:
				print('failed',[data,f])

		
	if 'ref' in request.values:
		return redirect(request.values['ref'])
	else:
		return 'OK',  200