Add placeholder view

app/tasks/components/columns.tsx

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+"use client";
+
+import { Badge } from "@/components/ui/badge";
+import { Checkbox } from "@/components/ui/checkbox";
+import { ColumnDef } from "@tanstack/react-table";
+import { labels, priorities, statuses } from "../data/data";
+import { Task } from "../data/schema";
+import { DataTableColumnHeader } from "./data-table-column-header";
+import { DataTableRowActions } from "./data-table-row-actions";
+
+export const columns: ColumnDef<Task>[] = [
+  {
+    id: "select",
+    header: ({ table }) => (
+      <Checkbox
+        checked={
+          table.getIsAllPageRowsSelected() ||
+          (table.getIsSomePageRowsSelected() && "indeterminate")
+        }
+        onCheckedChange={(value) => table.toggleAllPageRowsSelected(!!value)}
+        aria-label="Select all"
+        className="translate-y-[2px]"
+      />
+    ),
+    cell: ({ row }) => (
+      <Checkbox
+        checked={row.getIsSelected()}
+        onCheckedChange={(value) => row.toggleSelected(!!value)}
+        aria-label="Select row"
+        className="translate-y-[2px]"
+      />
+    ),
+    enableSorting: false,
+    enableHiding: false,
+  },
+  {
+    accessorKey: "id",
+    header: ({ column }) => (
+      <DataTableColumnHeader column={column} title="Task" />
+    ),
+    cell: ({ row }) => <div className="w-[80px]">{row.getValue("id")}</div>,
+    enableSorting: false,
+    enableHiding: false,
+  },
+  {
+    accessorKey: "title",
+    header: ({ column }) => (
+      <DataTableColumnHeader column={column} title="Title" />
+    ),
+    cell: ({ row }) => {
+      const label = labels.find((label) => label.value === row.original.label);
+
+      return (
+        <div className="flex space-x-2">
+          {label && <Badge variant="outline">{label.label}</Badge>}
+          <span className="max-w-[500px] truncate font-medium">
+            {row.getValue("title")}
+          </span>
+        </div>
+      );
+    },
+  },
+  {
+    accessorKey: "status",
+    header: ({ column }) => (
+      <DataTableColumnHeader column={column} title="Status" />
+    ),
+    cell: ({ row }) => {
+      const status = statuses.find(
+        (status) => status.value === row.getValue("status"),
+      );
+
+      if (!status) {
+        return null;
+      }
+
+      return (
+        <div className="flex w-[100px] items-center">
+          {status.icon && (
+            <status.icon className="mr-2 h-4 w-4 text-muted-foreground" />
+          )}
+          <span>{status.label}</span>
+        </div>
+      );
+    },
+    filterFn: (row, id, value) => {
+      return value.includes(row.getValue(id));
+    },
+  },
+  {
+    accessorKey: "priority",
+    header: ({ column }) => (
+      <DataTableColumnHeader column={column} title="Priority" />
+    ),
+    cell: ({ row }) => {
+      const priority = priorities.find(
+        (priority) => priority.value === row.getValue("priority"),
+      );
+
+      if (!priority) {
+        return null;
+      }
+
+      return (
+        <div className="flex items-center">
+          {priority.icon && (
+            <priority.icon className="mr-2 h-4 w-4 text-muted-foreground" />
+          )}
+          <span>{priority.label}</span>
+        </div>
+      );
+    },
+    filterFn: (row, id, value) => {
+      return value.includes(row.getValue(id));
+    },
+  },
+  {
+    id: "actions",
+    cell: ({ row }) => <DataTableRowActions row={row} />,
+  },
+];

app/tasks/components/data-table-column-header.tsx

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+import { Button } from "@/components/ui/button";
+import {
+  DropdownMenu,
+  DropdownMenuContent,
+  DropdownMenuItem,
+  DropdownMenuSeparator,
+  DropdownMenuTrigger,
+} from "@/components/ui/dropdown-menu";
+import { cn } from "@/lib/utils";
+import {
+  ArrowDownIcon,
+  ArrowUpIcon,
+  CaretSortIcon,
+  EyeNoneIcon,
+} from "@radix-ui/react-icons";
+import { Column } from "@tanstack/react-table";
+
+interface DataTableColumnHeaderProps<TData, TValue>
+  extends React.HTMLAttributes<HTMLDivElement> {
+  column: Column<TData, TValue>;
+  title: string;
+}
+
+export function DataTableColumnHeader<TData, TValue>({
+  column,
+  title,
+  className,
+}: DataTableColumnHeaderProps<TData, TValue>) {
+  if (!column.getCanSort()) {
+    return <div className={cn(className)}>{title}</div>;
+  }
+
+  return (
+    <div className={cn("flex items-center space-x-2", className)}>
+      <DropdownMenu>
+        <DropdownMenuTrigger asChild>
+          <Button
+            variant="ghost"
+            size="sm"
+            className="-ml-3 h-8 data-[state=open]:bg-accent"
+          >
+            <span>{title}</span>
+            {column.getIsSorted() === "desc" ? (
+              <ArrowDownIcon className="ml-2 h-4 w-4" />
+            ) : column.getIsSorted() === "asc" ? (
+              <ArrowUpIcon className="ml-2 h-4 w-4" />
+            ) : (
+              <CaretSortIcon className="ml-2 h-4 w-4" />
+            )}
+          </Button>
+        </DropdownMenuTrigger>
+        <DropdownMenuContent align="start">
+          <DropdownMenuItem onClick={() => column.toggleSorting(false)}>
+            <ArrowUpIcon className="mr-2 h-3.5 w-3.5 text-muted-foreground/70" />
+            Asc
+          </DropdownMenuItem>
+          <DropdownMenuItem onClick={() => column.toggleSorting(true)}>
+            <ArrowDownIcon className="mr-2 h-3.5 w-3.5 text-muted-foreground/70" />
+            Desc
+          </DropdownMenuItem>
+          <DropdownMenuSeparator />
+          <DropdownMenuItem onClick={() => column.toggleVisibility(false)}>
+            <EyeNoneIcon className="mr-2 h-3.5 w-3.5 text-muted-foreground/70" />
+            Hide
+          </DropdownMenuItem>
+        </DropdownMenuContent>
+      </DropdownMenu>
+    </div>
+  );
+}

app/tasks/components/data-table-faceted-filter.tsx

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+import { Badge } from "@/components/ui/badge";
+import { Button } from "@/components/ui/button";
+import {
+  Command,
+  CommandEmpty,
+  CommandGroup,
+  CommandInput,
+  CommandItem,
+  CommandList,
+  CommandSeparator,
+} from "@/components/ui/command";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import { Separator } from "@/components/ui/separator";
+import { cn } from "@/lib/utils";
+import { CheckIcon, PlusCircledIcon } from "@radix-ui/react-icons";
+import { Column } from "@tanstack/react-table";
+import * as React from "react";
+
+interface DataTableFacetedFilterProps<TData, TValue> {
+  column?: Column<TData, TValue>;
+  title?: string;
+  options: {
+    label: string;
+    value: string;
+    icon?: React.ComponentType<{ className?: string }>;
+  }[];
+}
+
+export function DataTableFacetedFilter<TData, TValue>({
+  column,
+  title,
+  options,
+}: DataTableFacetedFilterProps<TData, TValue>) {
+  const facets = column?.getFacetedUniqueValues();
+  const selectedValues = new Set(column?.getFilterValue() as string[]);
+
+  return (
+    <Popover>
+      <PopoverTrigger asChild>
+        <Button variant="outline" size="sm" className="h-8 border-dashed">
+          <PlusCircledIcon className="mr-2 h-4 w-4" />
+          {title}
+          {selectedValues?.size > 0 && (
+            <>
+              <Separator orientation="vertical" className="mx-2 h-4" />
+              <Badge
+                variant="secondary"
+                className="rounded-sm px-1 font-normal lg:hidden"
+              >
+                {selectedValues.size}
+              </Badge>
+              <div className="hidden space-x-1 lg:flex">
+                {selectedValues.size > 2 ? (
+                  <Badge
+                    variant="secondary"
+                    className="rounded-sm px-1 font-normal"
+                  >
+                    {selectedValues.size} selected
+                  </Badge>
+                ) : (
+                  options
+                    .filter((option) => selectedValues.has(option.value))
+                    .map((option) => (
+                      <Badge
+                        variant="secondary"
+                        key={option.value}
+                        className="rounded-sm px-1 font-normal"
+                      >
+                        {option.label}
+                      </Badge>
+                    ))
+                )}
+              </div>
+            </>
+          )}
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent className="w-[200px] p-0" align="start">
+        <Command>
+          <CommandInput placeholder={title} />
+          <CommandList>
+            <CommandEmpty>No results found.</CommandEmpty>
+            <CommandGroup>
+              {options.map((option) => {
+                const isSelected = selectedValues.has(option.value);
+                return (
+                  <CommandItem
+                    key={option.value}
+                    onSelect={() => {
+                      if (isSelected) {
+                        selectedValues.delete(option.value);
+                      } else {
+                        selectedValues.add(option.value);
+                      }
+                      const filterValues = Array.from(selectedValues);
+                      column?.setFilterValue(
+                        filterValues.length ? filterValues : undefined,
+                      );
+                    }}
+                  >
+                    <div
+                      className={cn(
+                        "mr-2 flex h-4 w-4 items-center justify-center rounded-sm border border-primary",
+                        isSelected
+                          ? "bg-primary text-primary-foreground"
+                          : "opacity-50 [&_svg]:invisible",
+                      )}
+                    >
+                      <CheckIcon className={cn("h-4 w-4")} />
+                    </div>
+                    {option.icon && (
+                      <option.icon className="mr-2 h-4 w-4 text-muted-foreground" />
+                    )}
+                    <span>{option.label}</span>
+                    {facets?.get(option.value) && (
+                      <span className="ml-auto flex h-4 w-4 items-center justify-center font-mono text-xs">
+                        {facets.get(option.value)}
+                      </span>
+                    )}
+                  </CommandItem>
+                );
+              })}
+            </CommandGroup>
+            {selectedValues.size > 0 && (
+              <>
+                <CommandSeparator />
+                <CommandGroup>
+                  <CommandItem
+                    onSelect={() => column?.setFilterValue(undefined)}
+                    className="justify-center text-center"
+                  >
+                    Clear filters
+                  </CommandItem>
+                </CommandGroup>
+              </>
+            )}
+          </CommandList>
+        </Command>
+      </PopoverContent>
+    </Popover>
+  );
+}