laravel-simplepos/resources/js/Pages/Product/FormModal.jsx

import React, { useEffect } from "react";
import Modal from "@/Components/Modal";
import { useForm } from "@inertiajs/react";
import Button from "@/Components/Button";
import FormInput from "@/Components/FormInput";
import { isEmpty } from "lodash";
import CategorySelectionInput from '../Category/SelectionInput';

export default function FormModal(props) {
    const { modalState } = props

    const { data, setData, post, put, processing, errors, reset, clearErrors } = useForm({
        name: '',
        price: 0,
        cost: 0,
        stock: 0,
        category_id: null,
    })

    const handleOnChange = (event) => {
        setData(event.target.name, event.target.type === 'checkbox' ? (event.target.checked ? 1 : 0) : event.target.value);
    }

    const handleReset = () => {
        modalState.setData(null)
        reset()
        clearErrors()
    }

    const handleClose = () => {
        handleReset()
        modalState.toggle()
    }

    const handleSubmit = () => {
        const product = modalState.data
        if(product !== null) {
            put(route('product.update', product), {
                onSuccess: () => handleClose(),
            })
            return
        } 
        post(route('product.store'), {
            onSuccess: () => handleClose()
        })
    }

    useEffect(() => {
        const product = modalState.data
        if (isEmpty(product) === false) {
            setData({
                name: product.name,
                price: product.price,
                cost: product.cost,
                stock: product.stock,
                category_id: product.category_id,
            })
            return 
        }
    }, [modalState])

    return (
        <Modal
            isOpen={modalState.isOpen}
            toggle={handleClose}
            title={"Barang"}
        >
            <FormInput
                name="name"
                value={data.name}
                onChange={handleOnChange}
                label="Nama"
                error={errors.name}
            />
            <FormInput
                type="number"
                name="price"
                value={data.price}
                onChange={handleOnChange}
                label="Harga Jual"
                error={errors.price}
            />
            <FormInput
                type="number"
                name="cost"
                value={data.cost}
                onChange={handleOnChange}
                label="Harga Beli"
                error={errors.cost}
            />
            <FormInput
                type="number"
                name="stock"
                value={data.stock}
                onChange={handleOnChange}
                label="Stok"
                error={errors.stock}
            />
            <CategorySelectionInput
                label="Kategori"
                itemSelected={data.category_id}
                onItemSelected={(id) => setData('category_id', id)}
                error={errors.category_id}
            />
            <div className="flex items-center">
                <Button
                    onClick={handleSubmit}
                    processing={processing} 
                >
                    Simpan
                </Button>
                <Button
                    onClick={handleClose}
                    type="secondary"
                >
                    Batal
                </Button>
            </div>
        </Modal>
    )
}