85 lines
1.9 KiB
TypeScript
85 lines
1.9 KiB
TypeScript
import { useState, ReactNode, PropsWithoutRef } from "react"
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import { FormProvider, useForm, UseFormProps } from "react-hook-form"
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import { zodResolver } from "@hookform/resolvers/zod"
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import { z } from "zod"
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export interface FormProps<S extends z.ZodType<any, any>>
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extends Omit<PropsWithoutRef<JSX.IntrinsicElements["form"]>, "onSubmit"> {
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/** All your form fields */
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children?: ReactNode
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/** Text to display in the submit button */
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submitText?: string
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schema?: S
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onSubmit: (values: z.infer<S>) => Promise<void | OnSubmitResult>
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initialValues?: UseFormProps<z.infer<S>>["defaultValues"]
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}
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interface OnSubmitResult {
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FORM_ERROR?: string
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[prop: string]: any
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}
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export const FORM_ERROR = "FORM_ERROR"
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export function Form<S extends z.ZodType<any, any>>({
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children,
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submitText,
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schema,
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initialValues,
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onSubmit,
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...props
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}: FormProps<S>) {
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const ctx = useForm<z.infer<S>>({
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mode: "onBlur",
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resolver: schema ? zodResolver(schema) : undefined,
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defaultValues: initialValues,
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})
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const [formError, setFormError] = useState<string | null>(null)
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return (
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<FormProvider {...ctx}>
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<form
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onSubmit={ctx.handleSubmit(async (values) => {
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const result = (await onSubmit(values)) || {}
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for (const [key, value] of Object.entries(result)) {
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if (key === FORM_ERROR) {
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setFormError(value)
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} else {
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ctx.setError(key as any, {
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type: "submit",
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message: value,
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})
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}
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}
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})}
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className="form"
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{...props}
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>
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{/* Form fields supplied as children are rendered here */}
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{children}
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{formError && (
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<div role="alert" style={{ color: "red" }}>
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{formError}
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</div>
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)}
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{submitText && (
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<button type="submit" disabled={ctx.formState.isSubmitting}>
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{submitText}
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</button>
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)}
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<style global jsx>{`
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.form > * + * {
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margin-top: 1rem;
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}
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`}</style>
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</form>
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</FormProvider>
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)
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}
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export default Form
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