269 lines
8.3 KiB
TypeScript
269 lines
8.3 KiB
TypeScript
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"use client";
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import * as React from "react";
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import { cn } from "@/lib/utils";
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import { removeLeadingZeros } from "@/lib/formatters";
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import { Minus, Plus } from "lucide-react";
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export interface QuantityInputProps
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extends Omit<React.InputHTMLAttributes<HTMLInputElement>, "onChange" | "value" | "type"> {
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value: number | string | undefined;
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onChange: (value: number | undefined) => void;
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error?: boolean;
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/** 최소값 (기본: 0) */
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min?: number;
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/** 최대값 */
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max?: number;
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/** 증감 단위 (기본: 1) */
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step?: number;
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/** +/- 버튼 표시 (기본: false) */
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showButtons?: boolean;
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/** 단위 접미사 (개, EA, 박스 등) */
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suffix?: string;
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/** 빈 값 허용 (기본: true) */
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allowEmpty?: boolean;
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}
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/**
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* QuantityInput - 수량 입력 전용 컴포넌트
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*
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* 특징:
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* - 정수만 허용
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* - 기본 최소값 0 (음수 불가)
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* - 선택적 +/- 버튼
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* - 단위 접미사 지원
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* - Leading zero 자동 제거
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*
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* @example
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* // 기본
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* <QuantityInput value={qty} onChange={setQty} />
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*
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* // +/- 버튼 포함
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* <QuantityInput value={qty} onChange={setQty} showButtons />
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*
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* // 단위 표시
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* <QuantityInput value={qty} onChange={setQty} suffix="개" />
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*
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* // 범위 제한
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* <QuantityInput value={qty} onChange={setQty} min={1} max={100} />
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*/
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const QuantityInput = React.forwardRef<HTMLInputElement, QuantityInputProps>(
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(
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{
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className,
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value,
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onChange,
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error,
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min = 0,
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max,
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step = 1,
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showButtons = false,
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suffix,
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allowEmpty = true,
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disabled,
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onFocus,
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onBlur,
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...props
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},
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ref
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) => {
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const [isFocused, setIsFocused] = React.useState(false);
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const [displayValue, setDisplayValue] = React.useState<string>("");
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// 외부 value 변경 시 displayValue 동기화
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React.useEffect(() => {
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if (!isFocused) {
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if (value === undefined || value === null || value === "") {
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setDisplayValue("");
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} else {
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const numValue = typeof value === "string" ? parseInt(value, 10) : Math.floor(value);
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if (!isNaN(numValue)) {
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setDisplayValue(String(numValue));
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} else {
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setDisplayValue("");
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}
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}
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}
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}, [value, isFocused]);
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// 값 클램핑
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const clampValue = (num: number): number => {
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let result = num;
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if (min !== undefined && result < min) result = min;
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if (max !== undefined && result > max) result = max;
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return result;
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};
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// 입력값 정제
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const sanitizeInput = (input: string): string => {
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// 숫자만 허용
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let result = input.replace(/\D/g, "");
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// Leading zero 제거
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if (result) {
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result = removeLeadingZeros(result);
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}
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return result;
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};
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// 값을 숫자로 변환
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const parseValue = (input: string): number | undefined => {
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if (!input) {
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return allowEmpty ? undefined : min;
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}
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const num = parseInt(input, 10);
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if (isNaN(num)) {
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return allowEmpty ? undefined : min;
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}
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return clampValue(num);
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};
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const handleChange = (e: React.ChangeEvent<HTMLInputElement>) => {
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const rawValue = e.target.value;
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const sanitized = sanitizeInput(rawValue);
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setDisplayValue(sanitized);
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const numValue = parseValue(sanitized);
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onChange(numValue);
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};
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const handleFocus = (e: React.FocusEvent<HTMLInputElement>) => {
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setIsFocused(true);
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onFocus?.(e);
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};
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const handleBlur = (e: React.FocusEvent<HTMLInputElement>) => {
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setIsFocused(false);
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const sanitized = sanitizeInput(displayValue);
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const numValue = parseValue(sanitized);
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onChange(numValue);
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if (numValue !== undefined) {
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setDisplayValue(String(numValue));
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} else {
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setDisplayValue("");
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}
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onBlur?.(e);
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};
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const handleKeyDown = (e: React.KeyboardEvent<HTMLInputElement>) => {
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const allowedKeys = [
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"Backspace", "Delete", "Tab", "Escape", "Enter",
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"ArrowLeft", "ArrowRight", "ArrowUp", "ArrowDown",
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"Home", "End"
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];
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if (allowedKeys.includes(e.key)) return;
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// Ctrl/Cmd + A, C, V, X 허용
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if ((e.ctrlKey || e.metaKey) && ["a", "c", "v", "x"].includes(e.key.toLowerCase())) {
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return;
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}
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// 숫자만 허용
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if (/^\d$/.test(e.key)) return;
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e.preventDefault();
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};
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// +/- 버튼 핸들러
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const handleIncrement = () => {
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if (disabled) return;
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const currentValue = value !== undefined && value !== null && value !== ""
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? (typeof value === "string" ? parseInt(value, 10) : Math.floor(value))
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: min;
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const newValue = clampValue((isNaN(currentValue) ? min : currentValue) + step);
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onChange(newValue);
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};
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const handleDecrement = () => {
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if (disabled) return;
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const currentValue = value !== undefined && value !== null && value !== ""
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? (typeof value === "string" ? parseInt(value, 10) : Math.floor(value))
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: min;
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const newValue = clampValue((isNaN(currentValue) ? min : currentValue) - step);
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onChange(newValue);
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};
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const isAtMin = value !== undefined && typeof value === "number" && value <= min;
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const isAtMax = max !== undefined && value !== undefined && typeof value === "number" && value >= max;
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return (
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<div className={cn("relative flex items-center", showButtons && "gap-1")}>
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{/* 감소 버튼 */}
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{showButtons && (
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<button
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type="button"
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onClick={handleDecrement}
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disabled={disabled || isAtMin}
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className={cn(
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"flex h-9 w-9 items-center justify-center rounded-md border border-input bg-background text-sm font-medium transition-colors",
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"hover:bg-accent hover:text-accent-foreground",
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"focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
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"disabled:pointer-events-none disabled:opacity-50"
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)}
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>
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<Minus className="h-4 w-4" />
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</button>
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)}
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<div className="relative flex-1">
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<input
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type="text"
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inputMode="numeric"
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ref={ref}
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data-slot="input"
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disabled={disabled}
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className={cn(
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"file:text-foreground placeholder:text-muted-foreground selection:bg-primary selection:text-primary-foreground dark:bg-input/30 border-input flex h-9 w-full min-w-0 rounded-md border px-3 py-1 text-base bg-input-background transition-[color,box-shadow] outline-none file:inline-flex file:h-7 file:border-0 file:bg-transparent file:text-sm file:font-medium disabled:pointer-events-none disabled:cursor-not-allowed disabled:opacity-50 md:text-sm",
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"focus-visible:border-ring focus-visible:ring-ring/50 focus-visible:ring-[3px]",
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error && "border-red-500 focus-visible:border-red-500 focus-visible:ring-red-500/20",
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showButtons && "text-center",
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suffix && !showButtons && "pr-10",
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className
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)}
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value={displayValue}
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onChange={handleChange}
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onFocus={handleFocus}
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onBlur={handleBlur}
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onKeyDown={handleKeyDown}
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{...props}
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/>
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{/* 접미사 (버튼 없을 때만) */}
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{suffix && !showButtons && !isFocused && displayValue && (
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<span className="absolute right-3 top-1/2 -translate-y-1/2 text-muted-foreground text-sm pointer-events-none">
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{suffix}
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</span>
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)}
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</div>
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{/* 증가 버튼 */}
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{showButtons && (
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<button
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type="button"
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onClick={handleIncrement}
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disabled={disabled || isAtMax}
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className={cn(
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"flex h-9 w-9 items-center justify-center rounded-md border border-input bg-background text-sm font-medium transition-colors",
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"hover:bg-accent hover:text-accent-foreground",
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"focus-visible:outline-none focus-visible:ring-2 focus-visible:ring-ring",
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"disabled:pointer-events-none disabled:opacity-50"
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)}
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>
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<Plus className="h-4 w-4" />
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</button>
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)}
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</div>
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);
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}
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);
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QuantityInput.displayName = "QuantityInput";
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export { QuantityInput };
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