Refactor code structure and remove redundant changes

src-old/components/ui/date-picker.tsx

@@ -0,0 +1,81 @@
+import * as React from "react";
+import { format } from "date-fns";
+import { CalendarIcon } from "lucide-react";
+
+import { cn } from "@/lib/utils";
+import { Button } from "@/components/ui/button";
+import { Calendar } from "@/components/ui/calendar";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+
+export interface DatePickerProps {
+  date?: Date;
+  onSelect?: (date: Date | undefined) => void;
+  placeholder?: string;
+  disabled?: boolean;
+  className?: string;
+  disableFuture?: boolean;
+  disablePast?: boolean;
+  fromYear?: number;
+  toYear?: number;
+}
+
+export function DatePicker({
+  date,
+  onSelect,
+  placeholder = "Pick a date",
+  disabled = false,
+  className,
+  disableFuture = false,
+  disablePast = false,
+  fromYear,
+  toYear,
+}: DatePickerProps) {
+  const [open, setOpen] = React.useState(false);
+
+  const handleSelect = (selectedDate: Date | undefined) => {
+    onSelect?.(selectedDate);
+    setOpen(false);
+  };
+
+  const getDisabledDates = (date: Date) => {
+    const now = new Date();
+    if (disableFuture && date > now) return true;
+    if (disablePast && date < now) return true;
+    return false;
+  };
+
+  return (
+    <Popover open={open} onOpenChange={setOpen}>
+      <PopoverTrigger asChild>
+        <Button
+          variant="outline"
+          className={cn(
+            "w-full justify-start text-left font-normal",
+            !date && "text-muted-foreground",
+            className
+          )}
+          disabled={disabled}
+        >
+          <CalendarIcon className="mr-2 h-4 w-4" />
+          {date ? format(date, "PPP") : <span>{placeholder}</span>}
+        </Button>
+      </PopoverTrigger>
+      <PopoverContent className="w-auto p-0" align="start">
+        <Calendar
+          mode="single"
+          selected={date}
+          onSelect={handleSelect}
+          disabled={getDisabledDates}
+          initialFocus
+          captionLayout="dropdown"
+          fromYear={fromYear}
+          toYear={toYear}
+        />
+      </PopoverContent>
+    </Popover>
+  );
+}