feat: Implement group management features with dialogs for editing and displaying group results, enhance event creation with a form, and update team and referee management UI

src/components/moderator/pages/events/Events.svelte

@@ -20,12 +20,136 @@
 <script lang="ts">
     import { eventRepo } from "@repo/event.ts";
     import EventCard from "@components/moderator/components/EventCard.svelte";
+    import { Button } from "@components/ui/button/index.js";
+    import { Dialog, DialogClose, DialogContent, DialogDescription, DialogFooter, DialogHeader, DialogTitle, DialogTrigger } from "@components/ui/dialog/index.js";
+    import { Input } from "@components/ui/input/index.js";
+    import { Label } from "@components/ui/label/index.js";
+    import DateTimePicker from "@components/ui/datetime-picker/DateTimePicker.svelte";
+    import { PlusIcon } from "lucide-svelte";
+    import dayjs from "dayjs";
+    import { fromAbsolute, now, ZonedDateTime } from "@internationalized/date";
 
     let eventsFuture = $state($eventRepo.listEvents());
     let millis = Date.now();
+
+    let createOpen = $state(false);
+    let newEventName = $state("");
+    let newEventStart: ZonedDateTime = $state(now("Europe/Berlin"));
+    let newEventEnd: ZonedDateTime = $state(
+        now("Europe/Berlin").add({
+            days: 1,
+        })
+    );
+    let isSubmitting = $state(false);
+    let errorMsg = $state("");
+
+    function resetFormFields() {
+        newEventName = "";
+        newEventStart = now("Europe/Berlin");
+        newEventEnd = now("Europe/Berlin").add({
+            days: 1,
+        });
+        errorMsg = "";
+        isSubmitting = false;
+    }
+
+    $effect(() => {
+        if (createOpen) {
+            resetFormFields();
+        }
+    });
+
+    const canSubmit = $derived(
+        newEventName.trim() !== "" &&
+            newEventStart &&
+            newEventEnd &&
+            dayjs(newEventStart.toDate()).isValid() &&
+            dayjs(newEventEnd.toDate()).isValid() &&
+            newEventStart.toDate() < newEventEnd.toDate() &&
+            !isSubmitting
+    );
+
+    async function submitCreateEvent() {
+        if (!canSubmit) return;
+
+        isSubmitting = true;
+        errorMsg = "";
+
+        const payload = {
+            name: newEventName.trim(),
+            start: dayjs(newEventStart.toDate()),
+            end: dayjs(newEventEnd.toDate()),
+        };
+
+        try {
+            await $eventRepo.createEvent(payload);
+            eventsFuture = $eventRepo.listEvents(); // Refresh the list
+            createOpen = false;
+        } catch (e: any) {
+            errorMsg = e.message || "Failed to create event. Please try again.";
+            console.error("Failed to create event:", e);
+        } finally {
+            isSubmitting = false;
+        }
+    }
 </script>
 
 <div class="p-4">
+    <div class="flex justify-between items-center mb-6">
+        <h1 class="text-3xl font-semibold">Events</h1>
+        <Dialog bind:open={createOpen}>
+            <DialogTrigger>
+                {#snippet child({ props })}
+                    <Button variant="outline" {...props}>
+                        <PlusIcon class="mr-2" />
+                        Create Event
+                    </Button>
+                {/snippet}
+            </DialogTrigger>
+            <DialogContent class="sm:max-w-[425px]">
+                <DialogHeader>
+                    <DialogTitle>Create New Event</DialogTitle>
+                    <DialogDescription>Fill in the details for the new event. Click create when you're done.</DialogDescription>
+                </DialogHeader>
+                <div class="grid gap-4 py-4">
+                    <div class="grid grid-cols-4 items-center gap-4">
+                        <Label for="eventName" class="text-right">Name</Label>
+                        <Input id="eventName" bind:value={newEventName} class="col-span-3" placeholder="Event Name" />
+                    </div>
+                    <div class="grid grid-cols-4 items-center gap-4">
+                        <Label for="eventStart" class="text-right">Start</Label>
+                        <div class="col-span-3">
+                            <DateTimePicker bind:value={newEventStart} />
+                        </div>
+                    </div>
+                    <div class="grid grid-cols-4 items-center gap-4">
+                        <Label for="eventEnd" class="text-right">End</Label>
+                        <div class="col-span-3">
+                            <DateTimePicker bind:value={newEventEnd} />
+                        </div>
+                    </div>
+                    {#if errorMsg}
+                        <p class="col-span-4 text-sm text-red-600 dark:text-red-500 text-center">{errorMsg}</p>
+                    {/if}
+                </div>
+                <DialogFooter>
+                    <DialogClose>
+                        {#snippet child({ props })}
+                            <Button variant="outline" {...props}>Cancel</Button>
+                        {/snippet}
+                    </DialogClose>
+                    <Button onclick={submitCreateEvent} disabled={!canSubmit}>
+                        {#if isSubmitting}
+                            Creating...
+                        {:else}
+                            Create Event
+                        {/if}
+                    </Button>
+                </DialogFooter>
+            </DialogContent>
+        </Dialog>
+    </div>
+
     {#await eventsFuture}
         <p>Loading...</p>
     {:then events}
@@ -45,7 +169,5 @@
                 </a>
             {/each}
         </div>
-    {:catch e}
-
     {/await}
-</div>
+</div>