reworked preventing parsing one match multiple times

main.go

@@ -174,18 +174,16 @@ func housekeeping() {
 		}
 
 		for _, m := range tMatches {
-			demoLoader.ParseMapL.Lock()
-			if _, ok := demoLoader.ParseMap[m.ShareCode]; ok {
+			demo := &csgo.Demo{MatchId: m.ID, ShareCode: m.ShareCode}
+			if demoLoader.IsLoading(demo) {
 				log.Infof("[HK] Skipping %s: parsing in progress", m.ShareCode)
-				demoLoader.ParseMapL.Unlock()
 				continue
 			}
 			log.Infof("[HK] Try reparsing match %d, played on %s", m.ID, m.Date)
-			err := demoLoader.LoadDemo(&csgo.Demo{MatchId: m.ID, ShareCode: m.ShareCode})
+			err := demoLoader.LoadDemo(demo)
 			if err != nil {
 				log.Warningf("[HK] Failure trying to parse match %d: %v", m.ID, err)
 			}
-			demoLoader.ParseMapL.Unlock()
 		}
 
 		// check for inconsistent matches