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

import { AddResourceLink } from '@/components/admin/add-resource-link';
import { Switch } from '@/components/ui/switch';
import { AdminLayout } from '@/layouts/admin-layout';
import { returnToFromPageUrl } from '@/lib/admin-return-to';

type Option = {
    id: number;
    name: string;
};

type VehicleGearboxCreateProps = {
    manufacturerOptions: Option[];
    driveTrainOptions: Option[];
    gearboxTypeOptions: string[];
};

type VehicleGearboxForm = {
    return_to: string;
    manufacturer_id: string;
    drive_train_id: string;
    code: string;
    name: string;
    slug: string;
    gearbox_type: string;
    gears_count: string;
    max_torque_nm: string;
    production_year_from: string;
    production_year_to: string;
    oil_capacity_liters: string;
    notes: string;
    is_active: boolean;
    sort_order: string;
};

export default function VehicleGearboxCreate({
    manufacturerOptions,
    driveTrainOptions,
    gearboxTypeOptions,
}: VehicleGearboxCreateProps) {
    const { url } = usePage();
    const form = useForm<VehicleGearboxForm>({
        return_to: returnToFromPageUrl(url),
        manufacturer_id: '',
        drive_train_id: '',
        code: '',
        name: '',
        slug: '',
        gearbox_type: gearboxTypeOptions[0] || '',
        gears_count: '',
        max_torque_nm: '',
        production_year_from: '',
        production_year_to: '',
        oil_capacity_liters: '',
        notes: '',
        is_active: true,
        sort_order: '0',
    });

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

        form.transform((data) => ({
            ...data,
            manufacturer_id:
                data.manufacturer_id === ''
                    ? null
                    : Number(data.manufacturer_id),
            drive_train_id:
                data.drive_train_id === '' ? null : Number(data.drive_train_id),
            code: data.code === '' ? null : data.code,
            name: data.name === '' ? null : data.name,
            gears_count:
                data.gears_count === '' ? null : Number(data.gears_count),
            max_torque_nm:
                data.max_torque_nm === '' ? null : Number(data.max_torque_nm),
            production_year_from:
                data.production_year_from === ''
                    ? null
                    : Number(data.production_year_from),
            production_year_to:
                data.production_year_to === ''
                    ? null
                    : Number(data.production_year_to),
            oil_capacity_liters:
                data.oil_capacity_liters === ''
                    ? null
                    : Number(data.oil_capacity_liters),
            notes: data.notes === '' ? null : data.notes,
            sort_order: data.sort_order === '' ? 0 : Number(data.sort_order),
        }));

        form.post('/admin/vehicle-gearboxes');
    };

    return (
        <AdminLayout>
            <Head title="Create Vehicle Gearbox" />

            <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]">
                        Create Vehicle Gearbox
                    </h1>
                    <Link
                        href="/admin/vehicle-gearboxes"
                        className="text-sm font-medium text-slate-600 hover:text-[#0a1530] dark:text-[#d7c7ff] dark:hover:text-[#efe8ff]"
                    >
                        Back to list
                    </Link>
                </div>

                <form onSubmit={submit} className="space-y-4">
                    <Field
                        label="Manufacturer"
                        error={form.errors.manufacturer_id}
                    >
                        <select
                            value={form.data.manufacturer_id}
                            onChange={(event) =>
                                form.setData(
                                    'manufacturer_id',
                                    event.target.value,
                                )
                            }
                            className="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]"
                        >
                            <option value="">Optional</option>
                            {manufacturerOptions.map((option) => (
                                <option key={option.id} value={option.id}>
                                    {option.name}
                                </option>
                            ))}
                        </select>
                        <AddResourceLink href="/admin/manufacturers/create">
                            Missing manufacturer?
                        </AddResourceLink>
                    </Field>

                    <div className="grid gap-4 md:grid-cols-3">
                        <Field
                            label="Gearbox Type"
                            error={form.errors.gearbox_type}
                        >
                            <select
                                value={form.data.gearbox_type}
                                onChange={(event) =>
                                    form.setData(
                                        'gearbox_type',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                                required
                            >
                                <option value="">Select gearbox type</option>
                                {gearboxTypeOptions.map((type) => (
                                    <option key={type} value={type}>
                                        {type}
                                    </option>
                                ))}
                            </select>
                        </Field>
                        <Field label="Code" error={form.errors.code}>
                            <input
                                value={form.data.code}
                                onChange={(event) =>
                                    form.setData('code', event.target.value)
                                }
                                className="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]"
                                placeholder="Optional"
                            />
                        </Field>
                        <Field label="Name" error={form.errors.name}>
                            <input
                                value={form.data.name}
                                onChange={(event) =>
                                    form.setData('name', event.target.value)
                                }
                                className="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]"
                                placeholder="Optional"
                            />
                        </Field>
                    </div>

                    <div className="grid gap-4 md:grid-cols-2">
                        <Field label="Slug" error={form.errors.slug}>
                            <input
                                value={form.data.slug}
                                onChange={(event) =>
                                    form.setData('slug', event.target.value)
                                }
                                className="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]"
                                placeholder="Optional"
                            />
                        </Field>
                        <Field
                            label="Drive Train"
                            error={form.errors.drive_train_id}
                        >
                            <select
                                value={form.data.drive_train_id}
                                onChange={(event) =>
                                    form.setData(
                                        'drive_train_id',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            >
                                <option value="">Optional</option>
                                {driveTrainOptions.map((option) => (
                                    <option key={option.id} value={option.id}>
                                        {option.name}
                                    </option>
                                ))}
                            </select>
                            <AddResourceLink href="/admin/drive-trains/create">
                                Missing drive train?
                            </AddResourceLink>
                        </Field>
                    </div>

                    <div className="grid gap-4 md:grid-cols-4">
                        <Field label="Gears" error={form.errors.gears_count}>
                            <input
                                type="number"
                                min={1}
                                max={20}
                                value={form.data.gears_count}
                                onChange={(event) =>
                                    form.setData(
                                        'gears_count',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                        <Field
                            label="Max Torque (Nm)"
                            error={form.errors.max_torque_nm}
                        >
                            <input
                                type="number"
                                min={1}
                                value={form.data.max_torque_nm}
                                onChange={(event) =>
                                    form.setData(
                                        'max_torque_nm',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                        <Field
                            label="Oil Capacity (L)"
                            error={form.errors.oil_capacity_liters}
                        >
                            <input
                                type="number"
                                min={0.1}
                                step="0.01"
                                value={form.data.oil_capacity_liters}
                                onChange={(event) =>
                                    form.setData(
                                        'oil_capacity_liters',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                        <Field
                            label="Sort Order"
                            error={form.errors.sort_order}
                        >
                            <input
                                type="number"
                                min={0}
                                value={form.data.sort_order}
                                onChange={(event) =>
                                    form.setData(
                                        'sort_order',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                    </div>

                    <div className="grid gap-4 md:grid-cols-2">
                        <Field
                            label="Production From"
                            error={form.errors.production_year_from}
                        >
                            <input
                                type="number"
                                min={1886}
                                max={2100}
                                value={form.data.production_year_from}
                                onChange={(event) =>
                                    form.setData(
                                        'production_year_from',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                        <Field
                            label="Production To"
                            error={form.errors.production_year_to}
                        >
                            <input
                                type="number"
                                min={1886}
                                max={2100}
                                value={form.data.production_year_to}
                                onChange={(event) =>
                                    form.setData(
                                        'production_year_to',
                                        event.target.value,
                                    )
                                }
                                className="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]"
                            />
                        </Field>
                    </div>

                    <Field label="Notes" error={form.errors.notes}>
                        <textarea
                            value={form.data.notes}
                            onChange={(event) =>
                                form.setData('notes', event.target.value)
                            }
                            className="h-28 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]"
                        />
                    </Field>

                    <div className="mt-2 rounded-xl border border-slate-200 bg-slate-50/80 p-4 dark:border-[#3c2b68] dark:bg-[#2a1d50]/40">
                        <div className="flex flex-col gap-4 md:flex-row md:items-center md:justify-between">
                            <div className="inline-flex items-center gap-3 text-sm text-slate-700 dark:text-[#d7c7ff]">
                                <Switch
                                    checked={form.data.is_active}
                                    onChange={(checked) =>
                                        form.setData('is_active', checked)
                                    }
                                    ariaLabel="Active gearbox"
                                />
                                Active gearbox
                            </div>

                            <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...'
                                    : 'Create Gearbox'}
                            </button>
                        </div>
                    </div>
                </form>
            </div>
        </AdminLayout>
    );
}

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>
    );
}
