Refactor player handling: replace player arrays with IDs, implement PlayerSelector component

src/components/ui/PlayerSelector.svelte

@@ -0,0 +1,122 @@
+<script lang="ts">
+    import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@components/ui/command";
+    import { Popover, PopoverContent, PopoverTrigger } from "@components/ui/popover";
+    import { Button } from "@components/ui/button";
+    import { Check, ChevronsUpDown } from "lucide-svelte";
+    import { cn } from "@components/utils";
+    import { dataRepo } from "@repo/data";
+    import type { Player } from "@type/data";
+
+    let {
+        value = $bindable(null),
+        multiple = false,
+        placeholder = "Select player...",
+        onSelect,
+    }: {
+        value?: number | number[] | null;
+        multiple?: boolean;
+        placeholder?: string;
+        onSelect?: (player: Player) => void;
+    } = $props();
+
+    let open = $state(false);
+    let search = $state("");
+    let players: Player[] = $state([]);
+    let loading = $state(false);
+
+    let debounceTimer: NodeJS.Timeout;
+
+    function fetchPlayers(searchTerm: string) {
+        clearTimeout(debounceTimer);
+        debounceTimer = setTimeout(async () => {
+            loading = true;
+            try {
+                const res = await $dataRepo.queryPlayers(searchTerm || undefined, undefined, undefined, 50, 0, false, true);
+                players = res.entries;
+            } finally {
+                loading = false;
+            }
+        }, 300);
+    }
+
+    $effect(() => {
+        fetchPlayers(search);
+    });
+
+    function handleSelect(player: Player) {
+        if (onSelect) {
+            onSelect(player);
+        }
+
+        if (multiple) {
+            if (Array.isArray(value)) {
+                if (value.includes(player.id!)) {
+                    value = value.filter((v) => v !== player.id);
+                } else {
+                    value = [...value, player.id!];
+                }
+            } else {
+                value = [player.id!];
+            }
+        } else {
+            if (value === player.id) {
+                value = null; // Deselect
+            } else {
+                value = player.id;
+                open = false;
+            }
+        }
+    }
+
+    function isSelected(id: number) {
+        if (multiple) {
+            return Array.isArray(value) && value.includes(id);
+        }
+        return value === id;
+    }
+
+    let triggerLabel = $derived.by(() => {
+        if (multiple) {
+            if (Array.isArray(value) && value.length > 0) {
+                return `${placeholder} (${value.length})`;
+            }
+            return placeholder;
+        } else {
+            // We might need to fetch the selected player's name if it's not in the current list
+            // For now, let's just show the placeholder or "Selected"
+            // Ideally we would have a way to resolve the name from the UUID if it's not in `players`
+            // But `players` only contains search results.
+            // If we want to show the name, we might need to fetch it or pass it in.
+            // Given the context of AuditLog, it shows "Spieler Filter (count)".
+            // Given RefereesList, it's a button "Hinzufügen".
+            return placeholder;
+        }
+    });
+</script>
+
+<Popover bind:open>
+    <PopoverTrigger>
+        {#snippet child({ props })}
+            <Button variant="outline" class={cn("justify-between", Array.isArray(value) && !value?.length && "text-muted-foreground")} {...props} role="combobox" aria-expanded={open}>
+                {triggerLabel}
+                <ChevronsUpDown class="ml-2 size-4 shrink-0 opacity-50" />
+            </Button>
+        {/snippet}
+    </PopoverTrigger>
+    <PopoverContent class="p-0">
+        <Command shouldFilter={false}>
+            <CommandInput bind:value={search} placeholder="Search players..." />
+            <CommandList>
+                <CommandEmpty>No players found.</CommandEmpty>
+                <CommandGroup>
+                    {#each players as player (player.uuid)}
+                        <CommandItem value={player.id?.toString()} onSelect={() => handleSelect(player)}>
+                            <Check class={cn("mr-2 size-4", isSelected(player.id!) ? "opacity-100" : "opacity-0")} />
+                            {player.name}
+                        </CommandItem>
+                    {/each}
+                </CommandGroup>
+            </CommandList>
+        </Command>
+    </PopoverContent>
+</Popover>