initial commit

apps/Frontend/src/components/ui/dateInput.tsx

@@ -0,0 +1,183 @@
+import { useEffect, useState } from "react";
+import { format } from "date-fns";
+import { Calendar } from "@/components/ui/calendar";
+import {
+  Popover,
+  PopoverContent,
+  PopoverTrigger,
+} from "@/components/ui/popover";
+import { Button } from "@/components/ui/button";
+import { Input } from "@/components/ui/input";
+import { CalendarIcon } from "lucide-react";
+import { cn } from "@/lib/utils";
+
+interface DateInputProps {
+  label?: string;
+  value: Date | null;
+  onChange: (date: Date | null) => void;
+  disableFuture?: boolean;
+  disablePast?: boolean;
+}
+
+export function DateInput({
+  label,
+  value,
+  onChange,
+  disableFuture = false,
+  disablePast = false,
+}: DateInputProps) {
+  const [inputValue, setInputValue] = useState(
+    value ? format(value, "MM/dd/yyyy") : ""
+  );
+  const [open, setOpen] = useState(false);
+
+  useEffect(() => {
+    if (value) {
+      const formatted = format(value, "MM/dd/yyyy");
+      setInputValue((prev) => (prev !== formatted ? formatted : prev));
+    } else {
+      setInputValue("");
+    }
+  }, [value]);
+
+  const handleInputChange = (e: React.ChangeEvent<HTMLInputElement>) => {
+    const raw = e.target.value;
+
+    // If the user typed or pasted separators, treat as segmented input.
+    if (/\D/.test(raw)) {
+      // Split into digit-groups, ignoring empty groups.
+      const parts = raw.split(/\D+/).filter(Boolean); // e.g. ["02","12","2003"] or ["02","231996"]
+
+      let mm = "";
+      let dd = "";
+      let yyyy = "";
+
+      // month is the first group (max 2 chars)
+      if (parts.length >= 1) {
+        mm = (parts[0] ?? "").slice(0, 2);
+      }
+
+      if (parts.length >= 2) {
+        const p1 = parts[1] ?? "";
+
+        if (p1.length <= 2) {
+          // normal: p1 is day (1-2 digits)
+          dd = p1.slice(0, 2);
+
+          // if there are more parts, they form the year
+          if (parts.length >= 3) {
+            yyyy = parts.slice(2).join("").slice(0, 4);
+          }
+        } else {
+          // overflow: p1 contains day + start-of-year (e.g. "231996")
+          dd = p1.slice(0, 2);
+          const rest = p1.slice(2) + parts.slice(2).join("");
+          yyyy = rest.slice(0, 4);
+        }
+      }
+
+      // Pad single-digit month/day when user has moved past them.
+      if (mm.length === 1 && (dd || raw.endsWith("/"))) {
+        mm = mm.padStart(2, "0");
+      }
+      if (dd.length === 1 && (yyyy || raw.endsWith("/"))) {
+        dd = dd.padStart(2, "0");
+      }
+
+      let display = "";
+      if (mm) display += mm;
+      if (dd || raw.includes("/")) {
+        // add slash if there's a day or user typed a slash
+        display += "/" + dd;
+      }
+      if (yyyy || (raw.match(/\//g) || []).length >= 2) {
+        // add slash for year if there's a year or user typed two slashes
+        display += "/" + yyyy;
+      }
+
+      // Trim trailing slash if nothing after it (keeps behavior clean)
+      if (display.endsWith("/") && !display.endsWith("//")) {
+        // keep single trailing slash only if user typed it explicitly (raw ends with '/'),
+        // otherwise remove it to avoid showing an empty trailing slash.
+        if (!raw.endsWith("/")) {
+          display = display.replace(/\/$/, "");
+        }
+      }
+
+      setInputValue(display);
+
+      // Only call onChange when we have mm + dd + 4-digit yyyy and the date is valid.
+      if (mm.length > 0 && dd.length > 0 && yyyy.length === 4) {
+        const parsed = new Date(+yyyy, +mm - 1, +dd);
+        if (!isNaN(parsed.getTime())) {
+          onChange(parsed);
+        }
+      }
+
+      return;
+    }
+
+    // No separators — free typing digits (incremental)
+    // Keep simple: mm (2) / dd (2) / yyyy (4)
+    let val = raw.replace(/\D/g, "");
+
+    if (val.length <= 2) {
+      setInputValue(val);
+    } else if (val.length <= 4) {
+      setInputValue(`${val.slice(0, 2)}/${val.slice(2)}`);
+    } else {
+      const mm = val.slice(0, 2);
+      const dd = val.slice(2, 4);
+      const yyyy = val.slice(4, 8); // 0..4 chars
+      setInputValue(`${mm}/${dd}${yyyy ? `/${yyyy}` : ""}`);
+
+      if (yyyy.length === 4) {
+        const parsed = new Date(+yyyy, +mm - 1, +dd);
+        if (!isNaN(parsed.getTime())) {
+          onChange(parsed);
+        }
+      }
+    }
+  };
+
+  return (
+    <div className="space-y-2">
+      {label && <label className="text-sm font-medium">{label}</label>}
+      <div className="flex gap-2">
+        <Input
+          placeholder="MM/DD/YYYY"
+          value={inputValue}
+          onChange={handleInputChange}
+        />
+        <Popover open={open} onOpenChange={setOpen}>
+          <PopoverTrigger asChild>
+            <Button type="button" variant="outline" className={cn("px-3")}>
+              <CalendarIcon className="h-4 w-4 opacity-70" />
+            </Button>
+          </PopoverTrigger>
+          <PopoverContent className="w-auto p-4">
+            <Calendar
+              mode="single"
+              selected={value ?? undefined}
+              defaultMonth={value ?? undefined}
+              onSelect={(date) => {
+                if (date) {
+                  setInputValue(format(date, "MM/dd/yyyy"));
+                  onChange(date);
+                  setOpen(false);
+                }
+              }}
+              disabled={
+                disableFuture
+                  ? { after: new Date() }
+                  : disablePast
+                    ? { before: new Date() }
+                    : undefined
+              }
+            />
+          </PopoverContent>
+        </Popover>
+      </div>
+    </div>
+  );
+}