Prevent match containing active players from being started

src/app/components/tournament-manage/tournament-manage.component.ts

@@ -2,7 +2,6 @@ import {Component, inject, Input, OnInit} from '@angular/core';
 import {
   MatAccordion,
   MatExpansionPanel,
-  MatExpansionPanelDescription,
   MatExpansionPanelHeader,
   MatExpansionPanelTitle
 } from "@angular/material/expansion";
@@ -13,14 +12,10 @@ import {TournamentService} from "../../service/tournament.service";
 import {ActivatedRoute, Router} from "@angular/router";
 import {Tournament} from "../../model/tournament";
 import {FullNamePipe} from "../../pipes/fullname-pipe";
-import {MatList, MatListItem} from "@angular/material/list";
+import {MatButton, MatIconButton} from "@angular/material/button";
-import {MatDivider} from "@angular/material/divider";
-import {MatAnchor, MatButton, MatIconAnchor, MatIconButton, MatMiniFabAnchor} from "@angular/material/button";
 import {MatIcon} from "@angular/material/icon";
 import {Group} from "../../model/group";
 import {Round} from "../../model/round";
-import {MatTable} from "@angular/material/table";
-import {StatusPipe} from "../../pipes/status-pipe";
 import {MatMenu, MatMenuContent, MatMenuItem, MatMenuTrigger} from "@angular/material/menu";
 import {Match} from "../../model/match";
 import {FormsModule} from "@angular/forms";
@@ -48,19 +43,12 @@ import {TitleService} from "../../service/title.service";
     MatCardContent,
     MatCardHeader,
     MatExpansionPanel,
-    MatExpansionPanelDescription,
     MatExpansionPanelHeader,
     MatExpansionPanelTitle,
     NgForOf,
     NgIf,
     TeamPipe,
-    MatListItem,
-    MatDivider,
-    MatList,
-    MatAnchor,
     MatIcon,
-    MatTable,
-    StatusPipe,
     NgClass,
     MatMenu,
     MatMenuItem,
@@ -71,9 +59,6 @@ import {TitleService} from "../../service/title.service";
     MatTab,
     MatTabLabel,
     MatButton,
-    MatchResultPipe,
-    MatIconAnchor,
-    MatMiniFabAnchor,
     MatIconButton,
     DecimalPipe,
     TournamentValidateComponent,
@@ -195,8 +180,11 @@ export class TournamentManageComponent implements OnInit {
 
   startMatch(match: Match) {
     const availableCourts = this.getAvailableCourts();
+
     if (availableCourts.length == 0) {
       alert('Geen banen beschikbaar!');
+    } else if (this.matchContainsPlayersThatArePlaying(match)) {
+      alert('Deze wedstrijd bevat spelers die al aan het spelen zijn!');
     } else {
       this.courtSelectionDialog.open(CourtSelectionComponent, {
         data: {
@@ -216,6 +204,23 @@ export class TournamentManageComponent implements OnInit {
     }
   }
 
+  matchContainsPlayersThatArePlaying(match: Match): boolean {
+    let activePlayers: number[] = [];
+    for (let activeMatch of this.activeMatches()) {
+      activePlayers.push(activeMatch.match.team1.player1.id);
+      if (activeMatch.match.team1.player2) activePlayers.push(activeMatch.match.team1.player2.id);
+      activePlayers.push(activeMatch.match.team2.player1.id);
+      if (activeMatch.match.team2.player2) activePlayers.push(activeMatch.match.team2.player2.id);
+    }
+    let matchPlayers: number[] = [];
+    matchPlayers.push(match.team1.player1.id);
+    if (match.team1.player2) matchPlayers.push(match.team1.player2.id);
+    matchPlayers.push(match.team2.player1.id);
+    if (match.team2.player2) matchPlayers.push(match.team2.player2.id);
+    let playersThatArePlaying = activePlayers.filter(Set.prototype.has, new Set(matchPlayers));
+    return playersThatArePlaying.length > 0;
+  }
+
   getAvailableCourts(): number[] {
     const maxCourts = this.tournament.courts;
     const activeCourts = this.activeMatches().map(activeMatch => activeMatch.match.court);