import { Head, Link, useForm } from '@inertiajs/react';

import { AdminLayout } from '@/layouts/admin-layout';

type CustomerForm = {
    name: string;
    email: string;
    phone: string;
    address_line1: string;
    address_line2: string;
    city: string;
    postal_code: string;
    country: string;
    password: string;
};

export default function AdminCustomerCreate() {
    const form = useForm<CustomerForm>({
        name: '',
        email: '',
        phone: '',
        address_line1: '',
        address_line2: '',
        city: '',
        postal_code: '',
        country: '',
        password: '',
    });

    const submit = (event: React.FormEvent<HTMLFormElement>) => {
        event.preventDefault();

        form.transform((data) => ({
            ...data,
            password: data.password === '' ? null : data.password,
        }));

        form.post('/admin/customers');
    };

    return (
        <AdminLayout>
            <Head title="Create Customer" />

            <CustomerFormPanel
                title="Create Customer"
                submitLabel="Create Customer"
                form={form}
                onSubmit={submit}
            />
        </AdminLayout>
    );
}

function CustomerFormPanel({
    title,
    submitLabel,
    form,
    onSubmit,
}: {
    title: string;
    submitLabel: string;
    form: ReturnType<typeof useForm<CustomerForm>>;
    onSubmit: (event: React.FormEvent<HTMLFormElement>) => void;
}) {
    return (
        <div className="space-y-5">
            <div className="flex flex-wrap items-center justify-between gap-3">
                <h1 className="text-2xl font-semibold text-[#0a1530] dark:text-[#efe8ff]">
                    {title}
                </h1>
                <Link
                    href="/admin/customers"
                    className="text-sm font-medium text-slate-600 hover:text-[#0a1530] dark:text-[#d7c7ff] dark:hover:text-[#efe8ff]"
                >
                    Back to customers
                </Link>
            </div>

            <form onSubmit={onSubmit} className="space-y-4">
                <div className="grid gap-4 md:grid-cols-2">
                    <Field label="Name" error={form.errors.name}>
                        <input
                            value={form.data.name}
                            onChange={(event) =>
                                form.setData('name', event.target.value)
                            }
                            className={inputClassName}
                            required
                        />
                    </Field>
                    <Field label="Email" error={form.errors.email}>
                        <input
                            type="email"
                            value={form.data.email}
                            onChange={(event) =>
                                form.setData('email', event.target.value)
                            }
                            className={inputClassName}
                            required
                        />
                    </Field>
                </div>

                <div className="grid gap-4 md:grid-cols-2">
                    <Field label="Phone" error={form.errors.phone}>
                        <input
                            value={form.data.phone}
                            onChange={(event) =>
                                form.setData('phone', event.target.value)
                            }
                            className={inputClassName}
                        />
                    </Field>
                    <Field label="Password" error={form.errors.password}>
                        <input
                            type="password"
                            value={form.data.password}
                            onChange={(event) =>
                                form.setData('password', event.target.value)
                            }
                            className={inputClassName}
                            placeholder="Optional"
                        />
                    </Field>
                </div>

                <div className="grid gap-4 md:grid-cols-2">
                    <Field
                        label="Address Line 1"
                        error={form.errors.address_line1}
                    >
                        <input
                            value={form.data.address_line1}
                            onChange={(event) =>
                                form.setData(
                                    'address_line1',
                                    event.target.value,
                                )
                            }
                            className={inputClassName}
                        />
                    </Field>
                    <Field
                        label="Address Line 2"
                        error={form.errors.address_line2}
                    >
                        <input
                            value={form.data.address_line2}
                            onChange={(event) =>
                                form.setData(
                                    'address_line2',
                                    event.target.value,
                                )
                            }
                            className={inputClassName}
                        />
                    </Field>
                </div>

                <div className="grid gap-4 md:grid-cols-3">
                    <Field label="City" error={form.errors.city}>
                        <input
                            value={form.data.city}
                            onChange={(event) =>
                                form.setData('city', event.target.value)
                            }
                            className={inputClassName}
                        />
                    </Field>
                    <Field label="Postal Code" error={form.errors.postal_code}>
                        <input
                            value={form.data.postal_code}
                            onChange={(event) =>
                                form.setData('postal_code', event.target.value)
                            }
                            className={inputClassName}
                        />
                    </Field>
                    <Field label="Country" error={form.errors.country}>
                        <input
                            value={form.data.country}
                            onChange={(event) =>
                                form.setData('country', event.target.value)
                            }
                            className={inputClassName}
                        />
                    </Field>
                </div>

                <div className="rounded-xl border border-slate-200 bg-slate-50/80 p-4 dark:border-[#3c2b68] dark:bg-[#2a1d50]/40">
                    <div className="flex justify-end">
                        <button
                            type="submit"
                            disabled={form.processing}
                            className="w-full rounded-lg bg-[#0b7285] px-4 py-2 text-sm font-semibold text-white hover:bg-[#095f6f] disabled:opacity-50 md:w-auto dark:bg-[#7c3aed] dark:hover:bg-[#8b5cf6]"
                        >
                            {form.processing ? 'Saving...' : submitLabel}
                        </button>
                    </div>
                </div>
            </form>
        </div>
    );
}

function Field({
    label,
    error,
    children,
}: {
    label: string;
    error?: string;
    children: React.ReactNode;
}) {
    return (
        <div>
            <label className="block text-sm font-medium text-[#0a1530] dark:text-[#e5dcff]">
                {label}
            </label>
            <div className="mt-1">{children}</div>
            {error ? (
                <p className="mt-1 text-xs text-rose-600">{error}</p>
            ) : null}
        </div>
    );
}

const inputClassName =
    'w-full rounded-lg border border-slate-300 bg-white px-3 py-2 text-sm text-[#0a1530] outline-none focus:border-[#0b7285] dark:border-[#4a3a78] dark:bg-[#160f2d] dark:text-[#efe8ff] dark:focus:border-[#a78bfa]';
