Radio Group Field Input

1
2
3
4
5
6
import { type ClassValue, clsx } from "clsx";
import { twMerge } from "tailwind-merge";
 
export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs));
}

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
"use client";
 
import {
  forwardRef,
  useCallback,
  useId,
  useState,
  type ChangeEvent,
  type ComponentPropsWithoutRef,
} from "react";
 
import { cn } from "@/lib/cn";
 
export type RadioGroupFieldOption = Readonly<{
  value: string;
  label: string;
  description?: string;
  disabled?: boolean;
}>;
 
export type RadioGroupFieldInputProps = Readonly<
  {
    label?: string;
    hint?: string;
    error?: boolean;
    errorMessage?: string;
    options?: readonly RadioGroupFieldOption[];
    orientation?: "vertical" | "horizontal";
    containerClassName?: string;
    name?: string;
    required?: boolean;
    onValueChange?: (value: string) => void;
  } & Omit<ComponentPropsWithoutRef<"fieldset">, "onChange">
> & {
  value?: string;
  defaultValue?: string;
  onChange?: (event: ChangeEvent<HTMLInputElement>) => void;
};
 
const DEFAULT_OPTIONS: readonly RadioGroupFieldOption[] = [
  {
    value: "card",
    label: "Credit card",
    description: "Visa, Mastercard, Amex",
  },
  {
    value: "paypal",
    label: "PayPal",
    description: "Pay with your PayPal balance",
  },
  {
    value: "bank",
    label: "Bank transfer",
    description: "2–3 business days to clear",
  },
];
 
export const RadioGroupFieldInput = forwardRef<
  HTMLFieldSetElement,
  RadioGroupFieldInputProps
>(function RadioGroupFieldInput(
  {
    className,
    containerClassName,
    id,
    label = "Payment method",
    hint,
    error = false,
    errorMessage = "Choose a payment method.",
    options = DEFAULT_OPTIONS,
    orientation = "vertical",
    disabled,
    required,
    name,
    value,
    defaultValue = "",
    onChange,
    onValueChange,
    ...props
  },
  ref,
) {
  const generatedId = useId();
  const groupId = id ?? generatedId;
  const hintId = `${groupId}-hint`;
  const errorId = `${groupId}-error`;
  const groupName = name ?? groupId;
 
  const isControlled = value !== undefined;
  const [internal, setInternal] = useState(String(defaultValue));
  const current = isControlled ? String(value ?? "") : internal;
 
  const handleChange = useCallback(
    (event: ChangeEvent<HTMLInputElement>) => {
      const next = event.target.value;
      if (!isControlled) setInternal(next);
      onValueChange?.(next);
      onChange?.(event);
    },
    [isControlled, onChange, onValueChange],
  );
 
  return (
    <fieldset
      ref={ref}
      id={groupId}
      disabled={disabled}
      aria-invalid={error || undefined}
      aria-describedby={error ? errorId : hint ? hintId : undefined}
      data-slot="radio-group-field-input"
      data-error={error || undefined}
      className={cn("w-full max-w-sm border-0 p-0 font-sans", containerClassName, className)}
      {...props}
    >
      <legend className="mb-2 block text-sm font-medium text-neutral-900">
        {label}
        {required ? (
          <span className="ml-0.5 text-rose-500" aria-hidden>
            *
          </span>
        ) : null}
      </legend>
 
      <div
        role="radiogroup"
        aria-required={required || undefined}
        className={cn(
          "flex gap-2",
          orientation === "vertical" ? "flex-col" : "flex-col md:flex-row md:flex-wrap",
        )}
      >
        {options.map((option) => {
          const inputId = `${groupId}-${option.value}`;
          const isSelected = current === option.value;
 
          return (
            <label
              key={option.value}
              htmlFor={inputId}
              className={cn(
                "flex cursor-pointer items-start gap-3 rounded-lg border px-3.5 py-3 transition-[border-color,background-color] duration-200",
                orientation === "horizontal" && "md:min-w-44 md:flex-1",
                isSelected && !error && "border-neutral-900 bg-neutral-50",
                !isSelected && !error && "border-neutral-200 bg-white hover:border-neutral-300",
                error && isSelected && "border-rose-400 bg-rose-50/40",
                error && !isSelected && "border-rose-200 bg-white",
                option.disabled && "cursor-not-allowed opacity-50",
              )}
            >
              <span className="relative mt-0.5 shrink-0">
                <input
                  id={inputId}
                  type="radio"
                  name={groupName}
                  value={option.value}
                  disabled={option.disabled || disabled}
                  required={required}
                  checked={isSelected}
                  onChange={handleChange}
                  className="peer absolute size-4 cursor-pointer opacity-0 disabled:cursor-not-allowed"
                />
                <span
                  aria-hidden
                  className={cn(
                    "flex size-4 items-center justify-center rounded-full border-2 transition-[border-color,background-color] duration-200",
                    error
                      ? "border-rose-300 peer-focus:border-rose-400"
                      : "border-neutral-300 peer-focus:border-neutral-900",
                    isSelected && !error && "border-neutral-900",
                    isSelected && error && "border-rose-500",
                  )}
                >
                  <span
                    className={cn(
                      "size-2 rounded-full transition-transform duration-150",
                      isSelected && !error && "scale-100 bg-neutral-900",
                      isSelected && error && "scale-100 bg-rose-500",
                      !isSelected && "scale-0 bg-transparent",
                    )}
                  />
                </span>
              </span>
 
              <span className="min-w-0">
                <span className="block text-sm font-medium text-neutral-900">
                  {option.label}
                </span>
                {option.description ? (
                  <span className="mt-0.5 block text-xs text-neutral-500">
                    {option.description}
                  </span>
                ) : null}
              </span>
            </label>
          );
        })}
      </div>
 
      {error ? (
        <p id={errorId} role="alert" className="mt-2 text-xs text-rose-600">
          {errorMessage}
        </p>
      ) : hint ? (
        <p id={hintId} className="mt-2 text-xs text-neutral-500">
          {hint}
        </p>
      ) : null}
    </fieldset>
  );
});
 
RadioGroupFieldInput.displayName = "RadioGroupFieldInput";