Tried workaround for no availdable stats

ref #190

src/controllers/StatsController.ts

@@ -37,6 +37,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten runners by distance.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopRunnersByDistance() {
         let runners = await getConnection().getRepository(Runner).find({ relations: ['scans', 'group', 'distanceDonations', 'scans.track'] });
+        if (!runners || runners.length == 0) {
+            return [];
+        }
         let topRunners = runners.sort((runner1, runner2) => runner2.distance - runner1.distance).slice(0, 10);
         let responseRunners: ResponseStatsRunner[] = new Array<ResponseStatsRunner>();
         topRunners.forEach(runner => {
@@ -51,6 +54,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten runners by donations.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopRunnersByDonations() {
         let runners = await getConnection().getRepository(Runner).find({ relations: ['scans', 'group', 'distanceDonations', 'scans.track'] });
+        if (!runners || runners.length == 0) {
+            return [];
+        }
         let topRunners = runners.sort((runner1, runner2) => runner2.distanceDonationAmount - runner1.distanceDonationAmount).slice(0, 10);
         let responseRunners: ResponseStatsRunner[] = new Array<ResponseStatsRunner>();
         topRunners.forEach(runner => {
@@ -65,6 +71,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten runners by fastest laptime on your selected track (track by id).", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopRunnersByLaptime(@QueryParam("track") track: number) {
         let scans = await getConnection().getRepository(TrackScan).find({ relations: ['track', 'runner', 'runner.group', 'runner.scans', 'runner.scans.track', 'runner.distanceDonations'] });
+        if (!scans || scans.length == 0) {
+            return [];
+        }
         scans = scans.filter((s) => { return s.track.id == track && s.valid == true && s.lapTime != 0 }).sort((scan1, scan2) => scan1.lapTime - scan2.lapTime);
 
         let topScans = new Array<TrackScan>();
@@ -98,6 +107,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten teams by distance.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopTeamsByDistance() {
         let teams = await getConnection().getRepository(RunnerTeam).find({ relations: ['runners', 'runners.scans', 'runners.distanceDonations', 'runners.scans.track'] });
+        if (!teams || teams.length == 0) {
+            return [];
+        }
         let topTeams = teams.sort((team1, team2) => team2.distance - team1.distance).slice(0, 10);
         let responseTeams: ResponseStatsTeam[] = new Array<ResponseStatsTeam>();
         topTeams.forEach(team => {
@@ -112,6 +124,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten teams by donations.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopTeamsByDonations() {
         let teams = await getConnection().getRepository(RunnerTeam).find({ relations: ['runners', 'runners.scans', 'runners.distanceDonations', 'runners.scans.track'] });
+        if (!teams || teams.length == 0) {
+            return [];
+        }
         let topTeams = teams.sort((team1, team2) => team2.distanceDonationAmount - team1.distanceDonationAmount).slice(0, 10);
         let responseTeams: ResponseStatsTeam[] = new Array<ResponseStatsTeam>();
         topTeams.forEach(team => {
@@ -126,6 +141,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten organizations by distance.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopOrgsByDistance() {
         let orgs = await getConnection().getRepository(RunnerOrganization).find({ relations: ['runners', 'runners.scans', 'runners.distanceDonations', 'runners.scans.track', 'teams', 'teams.runners', 'teams.runners.scans', 'teams.runners.distanceDonations', 'teams.runners.scans.track'] });
+        if (!orgs || orgs.length == 0) {
+            return [];
+        }
         let topOrgs = orgs.sort((org1, org2) => org2.distance - org1.distance).slice(0, 10);
         let responseOrgs: ResponseStatsOrgnisation[] = new Array<ResponseStatsOrgnisation>();
         topOrgs.forEach(org => {
@@ -140,6 +158,9 @@ export class StatsController {
     @OpenAPI({ description: "Returns the top ten organizations by donations.", security: [{ "StatsApiToken": [] }, { "AuthToken": [] }, { "RefreshTokenCookie": [] }] })
     async getTopOrgsByDonations() {
         let orgs = await getConnection().getRepository(RunnerOrganization).find({ relations: ['runners', 'runners.scans', 'runners.distanceDonations', 'runners.scans.track', 'teams', 'teams.runners', 'teams.runners.scans', 'teams.runners.distanceDonations', 'teams.runners.scans.track'] });
+        if (!orgs || orgs.length == 0) {
+            return [];
+        }
         let topOrgs = orgs.sort((org1, org2) => org2.distanceDonationAmount - org1.distanceDonationAmount).slice(0, 10);
         let responseOrgs: ResponseStatsOrgnisation[] = new Array<ResponseStatsOrgnisation>();
         topOrgs.forEach(org => {