feat: add empty state to events grid when no events exist

Signed-off-by: Noa Virellia <noa@requiem.garden>

client/cms/src/components/events/event-grid.container.tsx

@@ -1,8 +1,10 @@
 import type { EventInfo } from './types';
+import { FileQuestionMark } from 'lucide-react';
 import PlaceholderImage from '@/assets/event-placeholder.png';
 import { useGetEvents } from '@/hooks/data/useGetEvents';
 import { Button } from '../ui/button';
 import { DialogTrigger } from '../ui/dialog';
+import { Empty, EmptyDescription, EmptyHeader, EmptyMedia, EmptyTitle } from '../ui/empty';
 import { EventGridView } from './event-grid.view';
 import { KycDialogContainer } from './kyc/kyc.dialog.container';
 
@@ -10,31 +12,48 @@ export function EventGridContainer() {
   const { data, isLoading } = useGetEvents();
   const allEvents: EventInfo[] = isLoading
     ? []
-    : data.pages.flatMap(page => page.data!).map(it => ({
-        type: it.type! as EventInfo['type'],
-        eventId: it.event_id!,
-        isJoined: it.is_joined!,
-        requireKyc: it.enable_kyc!,
-        coverImage: it.thumbnail! || PlaceholderImage,
-        eventName: it.name!,
-        description: it.description!,
-        startTime: new Date(it.start_time!),
-        endTime: new Date(it.end_time!),
-      } satisfies EventInfo));
+    : data.pages.flatMap(page => page.data ?? []).map(it => ({
+      type: it.type! as EventInfo['type'],
+      eventId: it.event_id!,
+      isJoined: it.is_joined!,
+      requireKyc: it.enable_kyc!,
+      coverImage: it.thumbnail! || PlaceholderImage,
+      eventName: it.name!,
+      description: it.description!,
+      startTime: new Date(it.start_time!),
+      endTime: new Date(it.end_time!),
+    } satisfies EventInfo));
 
   return (
-    <EventGridView
-      events={allEvents}
-      assembleFooter={eventInfo => (eventInfo.isJoined
-        ? <Button className="w-full" disabled>已加入</Button>
-        : (
-            <KycDialogContainer eventIdToJoin={eventInfo.eventId}>
-              <DialogTrigger asChild>
-                <Button className="w-full">加入活动</Button>
-              </DialogTrigger>
-            </KycDialogContainer>
-          )
+    <>
+      {allEvents.length > 0 && (
+        <EventGridView
+          events={allEvents}
+          assembleFooter={eventInfo => (eventInfo.isJoined
+            ? <Button className="w-full" disabled>已加入</Button>
+            : (
+              <KycDialogContainer eventIdToJoin={eventInfo.eventId}>
+                <DialogTrigger asChild>
+                  <Button className="w-full">加入活动</Button>
+                </DialogTrigger>
+              </KycDialogContainer>
+            )
+          )}
+        />
       )}
-    />
+      {
+        allEvents.length === 0 && (
+          <Empty className="h-full">
+            <EmptyHeader>
+              <EmptyMedia variant="icon">
+                <FileQuestionMark />
+              </EmptyMedia>
+              <EmptyTitle>暂无活动</EmptyTitle>
+              <EmptyDescription>前面的区域 以后再来探索吧</EmptyDescription>
+            </EmptyHeader>
+          </Empty>
+        )
+      }
+    </>
   );
 }

client/cms/src/components/ui/empty.tsx

@@ -0,0 +1,104 @@
+import { cva, type VariantProps } from "class-variance-authority"
+
+import { cn } from "@/lib/utils"
+
+function Empty({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty"
+      className={cn(
+        "flex min-w-0 flex-1 flex-col items-center justify-center gap-6 rounded-lg border-dashed p-6 text-center text-balance md:p-12",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function EmptyHeader({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-header"
+      className={cn(
+        "flex max-w-sm flex-col items-center gap-2 text-center",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+const emptyMediaVariants = cva(
+  "flex shrink-0 items-center justify-center mb-2 [&_svg]:pointer-events-none [&_svg]:shrink-0",
+  {
+    variants: {
+      variant: {
+        default: "bg-transparent",
+        icon: "bg-muted text-foreground flex size-10 shrink-0 items-center justify-center rounded-lg [&_svg:not([class*='size-'])]:size-6",
+      },
+    },
+    defaultVariants: {
+      variant: "default",
+    },
+  }
+)
+
+function EmptyMedia({
+  className,
+  variant = "default",
+  ...props
+}: React.ComponentProps<"div"> & VariantProps<typeof emptyMediaVariants>) {
+  return (
+    <div
+      data-slot="empty-icon"
+      data-variant={variant}
+      className={cn(emptyMediaVariants({ variant, className }))}
+      {...props}
+    />
+  )
+}
+
+function EmptyTitle({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-title"
+      className={cn("text-lg font-medium tracking-tight", className)}
+      {...props}
+    />
+  )
+}
+
+function EmptyDescription({ className, ...props }: React.ComponentProps<"p">) {
+  return (
+    <div
+      data-slot="empty-description"
+      className={cn(
+        "text-muted-foreground [&>a:hover]:text-primary text-sm/relaxed [&>a]:underline [&>a]:underline-offset-4",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+function EmptyContent({ className, ...props }: React.ComponentProps<"div">) {
+  return (
+    <div
+      data-slot="empty-content"
+      className={cn(
+        "flex w-full max-w-sm min-w-0 flex-col items-center gap-4 text-sm text-balance",
+        className
+      )}
+      {...props}
+    />
+  )
+}
+
+export {
+  Empty,
+  EmptyHeader,
+  EmptyTitle,
+  EmptyDescription,
+  EmptyContent,
+  EmptyMedia,
+}

client/cms/src/routes/_workbenchLayout/events.tsx

@@ -7,7 +7,7 @@ export const Route = createFileRoute('/_workbenchLayout/events')({
 
 function RouteComponent() {
   return (
-    <div className="py-4 px-6 md:gap-6 md:py-6">
+    <div className="py-4 px-6 md:gap-6 md:py-6 h-full">
       <EventGridContainer />
     </div>
   );