Skrunda bus station is a regional bus station serving local Latvian cities and town. It mainly serves Riga and Liepaja route, but you can get from here to Kuldīga, Kazdanga and other local routes. If you are heading to Skrunda by bus you can either hire some local taxi here or walk to the closely located Skrunda abandoned military town (Distance ~ 6km).
Speaking of this station building - for me it looks like a pretty standard Soviet time architecture built from a concrete.
Skrunda bus station
Platform at Skrunda bus station
Buses from Platform NR1 goes to Riga
Waiting room at Skrunda Bus Station
Bus schedule
Skrunda Bus Station