import { Head, Link, router } from '@inertiajs/react';
import { createColumnHelper } from '@tanstack/react-table';
import type { ColumnDef, PaginationState, SortingState } from '@tanstack/react-table';
import { Eye, Plus } from 'lucide-react';
import { useEffect, useMemo, useRef, useState } from 'react';
import Heading from '@/components/heading';
import { Button } from '@/components/ui/button';
import { Input } from '@/components/ui/input';
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue,
} from '@/components/ui/select';
import {
    DataTable,
    DataTableColumnHeader,
} from '@/components/data-table';
import { useCan } from '@/hooks/use-can';
import { formatCurrency, formatDate } from '@/lib/utils';
import { dashboard } from '@/routes';
import { create, index, show } from '@/routes/admin/invoices';
import type { Paginated } from '@/types';
import { InvoiceStatusBadge } from './status-badge';

type AdminInvoice = {
    id: number;
    code: string | null;
    display_code: string;
    status: string;
    status_label: string;
    issue_date: string | null;
    due_date: string | null;
    subtotal: number;
    discount_amount: number;
    tax_amount: number;
    total_amount: number;
    amount_paid: number;
    balance_due: number;
    customer: {
        id: number;
        code: string;
        name: string;
        email: string | null;
    } | null;
    created_at: string | null;
};

type CustomerOption = { id: number; code: string; name: string };
type StatusOption = { value: string; label: string };

type Filters = {
    search: string;
    sort: string;
    direction: 'asc' | 'desc';
    per_page: number;
    customer_id: number | null;
    status: string | null;
    from_date: string | null;
    to_date: string | null;
};

const columnHelper = createColumnHelper<AdminInvoice>();

function visitInvoices(params: {
    search: string;
    sort: string;
    direction: 'asc' | 'desc';
    page: number;
    per_page: number;
    customer_id: number | null;
    status: string | null;
    from_date: string | null;
    to_date: string | null;
}) {
    router.get(
        index.url(),
        {
            search: params.search || undefined,
            sort: params.sort,
            direction: params.direction,
            page: params.page > 1 ? params.page : undefined,
            per_page: params.per_page !== 15 ? params.per_page : undefined,
            customer_id: params.customer_id ?? undefined,
            status: params.status ?? undefined,
            from_date: params.from_date ?? undefined,
            to_date: params.to_date ?? undefined,
        },
        {
            preserveState: true,
            replace: true,
            preserveScroll: true,
        },
    );
}

export default function InvoicesIndex({
    invoices,
    customers,
    statuses,
    filters,
    canCreate,
}: {
    invoices: Paginated<AdminInvoice>;
    customers: CustomerOption[];
    statuses: StatusOption[];
    filters: Filters;
    canCreate: boolean;
}) {
    const canCreateLocal = useCan('invoices.create') || canCreate;
    const isFirstSearchEffect = useRef(true);
    const [isLoading, setIsLoading] = useState(false);

    const [search, setSearch] = useState(filters.search);
    const [customerId, setCustomerId] = useState<string>(
        filters.customer_id ? String(filters.customer_id) : 'all',
    );
    const [status, setStatus] = useState<string>(filters.status ?? 'all');
    const [fromDate, setFromDate] = useState(filters.from_date ?? '');
    const [toDate, setToDate] = useState(filters.to_date ?? '');
    const [sorting, setSorting] = useState<SortingState>([
        { id: filters.sort, desc: filters.direction === 'desc' },
    ]);
    const [pagination, setPagination] = useState<PaginationState>({
        pageIndex: invoices.current_page - 1,
        pageSize: invoices.per_page,
    });

    useEffect(() => {
        const removeStart = router.on('start', () => setIsLoading(true));
        const removeFinish = router.on('finish', () => setIsLoading(false));

        return () => {
            removeStart();
            removeFinish();
        };
    }, []);

    useEffect(() => {
        setSearch(filters.search);
        setCustomerId(
            filters.customer_id ? String(filters.customer_id) : 'all',
        );
        setStatus(filters.status ?? 'all');
        setFromDate(filters.from_date ?? '');
        setToDate(filters.to_date ?? '');
        setSorting([{ id: filters.sort, desc: filters.direction === 'desc' }]);
        setPagination({
            pageIndex: invoices.current_page - 1,
            pageSize: invoices.per_page,
        });
    }, [filters, invoices.current_page, invoices.per_page]);

    useEffect(() => {
        if (isFirstSearchEffect.current) {
            isFirstSearchEffect.current = false;

            return;
        }

        const timeout = window.setTimeout(() => {
            const sort = sorting[0];
            visitInvoices({
                search,
                sort: sort?.id ?? 'created_at',
                direction: sort?.desc === false ? 'asc' : 'desc',
                page: 1,
                per_page: pagination.pageSize,
                customer_id: customerId === 'all' ? null : Number(customerId),
                status: status === 'all' ? null : status,
                from_date: fromDate || null,
                to_date: toDate || null,
            });
        }, 300);

        return () => window.clearTimeout(timeout);
        // eslint-disable-next-line react-hooks/exhaustive-deps
    }, [search]);

    function currentVisitParams(overrides: {
        customer_id?: string;
        status?: string;
        from_date?: string;
        to_date?: string;
        page?: number;
        per_page?: number;
        sort?: string;
        direction?: 'asc' | 'desc';
    } = {}) {
        const sort = sorting[0];
        const nextCustomer = overrides.customer_id ?? customerId;
        const nextStatus = overrides.status ?? status;
        const nextFromDate =
            overrides.from_date !== undefined ? overrides.from_date : fromDate;
        const nextToDate =
            overrides.to_date !== undefined ? overrides.to_date : toDate;

        return {
            search,
            sort: overrides.sort ?? sort?.id ?? 'created_at',
            direction:
                overrides.direction ??
                (sort?.desc === false ? 'asc' : 'desc'),
            page: overrides.page ?? 1,
            per_page: overrides.per_page ?? pagination.pageSize,
            customer_id: nextCustomer === 'all' ? null : Number(nextCustomer),
            status: nextStatus === 'all' ? null : nextStatus,
            from_date: nextFromDate || null,
            to_date: nextToDate || null,
        } as const;
    }

    function applyFilters(next: {
        customer_id?: string;
        status?: string;
        from_date?: string;
        to_date?: string;
    }) {
        if (next.customer_id !== undefined) {
            setCustomerId(next.customer_id);
        }
        if (next.status !== undefined) {
            setStatus(next.status);
        }
        if (next.from_date !== undefined) {
            setFromDate(next.from_date);
        }
        if (next.to_date !== undefined) {
            setToDate(next.to_date);
        }

        visitInvoices(currentVisitParams(next));
    }

    const columns = useMemo(
        () =>
            [
                columnHelper.accessor('display_code', {
                    header: ({ column }) => (
                        <DataTableColumnHeader column={column} title="Code" />
                    ),
                    meta: { label: 'Code' },
                    cell: (info) => (
                        <span className="font-mono text-sm">
                            {info.getValue()}
                        </span>
                    ),
                }),
                columnHelper.accessor('customer', {
                    header: 'Client',
                    enableSorting: false,
                    meta: { label: 'Client' },
                    cell: (info) => (
                        <span className="font-medium">
                            {info.getValue()?.name ?? '—'}
                        </span>
                    ),
                }),
                columnHelper.accessor('issue_date', {
                    header: ({ column }) => (
                        <DataTableColumnHeader
                            column={column}
                            title="Émission"
                        />
                    ),
                    meta: { label: 'Émission' },
                    cell: (info) => (
                        <span className="text-muted-foreground">
                            {formatDate(info.getValue())}
                        </span>
                    ),
                }),
                columnHelper.accessor('due_date', {
                    header: ({ column }) => (
                        <DataTableColumnHeader
                            column={column}
                            title="Échéance"
                        />
                    ),
                    meta: { label: 'Échéance' },
                    cell: (info) => (
                        <span className="text-muted-foreground">
                            {formatDate(info.getValue())}
                        </span>
                    ),
                }),
                columnHelper.accessor('total_amount', {
                    header: ({ column }) => (
                        <DataTableColumnHeader column={column} title="Total" />
                    ),
                    meta: { label: 'Total' },
                    cell: (info) => (
                        <span className="tabular-nums">
                            {formatCurrency(info.getValue())}
                        </span>
                    ),
                }),
                columnHelper.accessor('status', {
                    header: ({ column }) => (
                        <DataTableColumnHeader column={column} title="Statut" />
                    ),
                    meta: { label: 'Statut' },
                    cell: ({ row }) => (
                        <InvoiceStatusBadge
                            status={row.original.status}
                            label={row.original.status_label}
                        />
                    ),
                }),
                columnHelper.display({
                    id: 'actions',
                    enableSorting: false,
                    enableHiding: false,
                    header: () => <div className="text-right">Actions</div>,
                    cell: ({ row }) => {
                        const invoice = row.original;

                        return (
                            <div className="flex justify-end gap-1">
                                <Button
                                    variant="outline"
                                    size="icon"
                                    asChild
                                >
                                    <Link
                                        href={show(invoice.id)}
                                        aria-label={`Voir ${invoice.display_code}`}
                                    >
                                        <Eye />
                                    </Link>
                                </Button>
                            </div>
                        );
                    },
                }),
            ] as ColumnDef<AdminInvoice>[],
        [],
    );

    return (
        <>
            <Head title="Factures" />

            <div className="flex h-full flex-1 flex-col gap-6 p-4 md:p-6">
                <div className="flex flex-col gap-4 sm:flex-row sm:items-center sm:justify-between">
                    <Heading
                        title="Factures"
                        description="Liste des factures clients"
                    />
                    {canCreateLocal && (
                        <Button asChild>
                            <Link href={create()}>
                                <Plus />
                                Nouvelle facture
                            </Link>
                        </Button>
                    )}
                </div>

                <DataTable
                    id="admin-invoices"
                    columns={columns}
                    data={invoices.data}
                    getRowId={(row) => String(row.id)}
                    isLoading={isLoading}
                    searchValue={search}
                    onSearchChange={setSearch}
                    searchPlaceholder="Rechercher par code ou client…"
                    emptyMessage="Aucune facture."
                    toolbarLeft={
                        <div className="flex flex-wrap gap-2">
                            <Select
                                value={customerId}
                                onValueChange={(value) => {
                                    applyFilters({ customer_id: value });
                                }}
                            >
                                <SelectTrigger className="w-[180px]">
                                    <SelectValue placeholder="Client" />
                                </SelectTrigger>
                                <SelectContent>
                                    <SelectItem value="all">
                                        Tous les clients
                                    </SelectItem>
                                    {customers.map((customer) => (
                                        <SelectItem
                                            key={customer.id}
                                            value={String(customer.id)}
                                        >
                                            {customer.name}
                                        </SelectItem>
                                    ))}
                                </SelectContent>
                            </Select>

                            <Select
                                value={status}
                                onValueChange={(value) => {
                                    applyFilters({ status: value });
                                }}
                            >
                                <SelectTrigger className="w-[160px]">
                                    <SelectValue placeholder="Statut" />
                                </SelectTrigger>
                                <SelectContent>
                                    <SelectItem value="all">
                                        Tous les statuts
                                    </SelectItem>
                                    {statuses.map((option) => (
                                        <SelectItem
                                            key={option.value}
                                            value={option.value}
                                        >
                                            {option.label}
                                        </SelectItem>
                                    ))}
                                </SelectContent>
                            </Select>

                            <Input
                                type="date"
                                value={fromDate}
                                onChange={(event) => {
                                    applyFilters({
                                        from_date: event.target.value,
                                    });
                                }}
                                className="w-[160px]"
                                aria-label="Date de début"
                            />

                            <Input
                                type="date"
                                value={toDate}
                                onChange={(event) => {
                                    applyFilters({
                                        to_date: event.target.value,
                                    });
                                }}
                                className="w-[160px]"
                                aria-label="Date de fin"
                            />
                        </div>
                    }
                    sorting={sorting}
                    onSortingChange={(updater) => {
                        const next =
                            typeof updater === 'function'
                                ? updater(sorting)
                                : updater;
                        setSorting(next);

                        const sort = next[0];
                        visitInvoices(
                            currentVisitParams({
                                sort: sort?.id ?? 'created_at',
                                direction:
                                    sort?.desc === false ? 'asc' : 'desc',
                                page: 1,
                            }),
                        );
                    }}
                    manualSorting
                    pagination={pagination}
                    onPaginationChange={(updater) => {
                        const next =
                            typeof updater === 'function'
                                ? updater(pagination)
                                : updater;
                        const pageChanged =
                            next.pageIndex !== pagination.pageIndex;
                        const sizeChanged =
                            next.pageSize !== pagination.pageSize;

                        setPagination(next);

                        if (!pageChanged && !sizeChanged) {
                            return;
                        }

                        visitInvoices(
                            currentVisitParams({
                                page: sizeChanged ? 1 : next.pageIndex + 1,
                                per_page: next.pageSize,
                            }),
                        );
                    }}
                    manualPagination
                    pageCount={invoices.last_page}
                    totalRows={invoices.total}
                />
            </div>
        </>
    );
}

InvoicesIndex.layout = {
    breadcrumbs: [
        { title: 'Tableau de bord', href: dashboard() },
        { title: 'Facturation', href: index.url() },
        { title: 'Factures', href: index.url() },
    ],
};