import { Head, Link, router } from '@inertiajs/react';
import {
    createColumnHelper,
    type ColumnDef,
    type PaginationState,
    type SortingState,
} from '@tanstack/react-table';
import { Eye, History, Plus } from 'lucide-react';
import { useEffect, useMemo, useRef, useState } from 'react';
import {
    DataTable,
    DataTableColumnHeader,
} from '@/components/data-table';
import Heading from '@/components/heading';
import { Badge } from '@/components/ui/badge';
import { Button } from '@/components/ui/button';
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue,
} from '@/components/ui/select';
import { formatDate } from '@/lib/utils';
import { dashboard } from '@/routes';
import {
    create as createExit,
    index as stockExitsIndex,
    show as stockExitShow,
} from '@/routes/admin/stock-exits';
import { index as stockMovementsIndex } from '@/routes/admin/stock-movements';
import type { Paginated } from '@/types';

type WarehouseOption = { id: number; code: string; name: string };

type TypeOption = { value: string; label: string };

type ExitRow = {
    id: number;
    code: string;
    type: string;
    type_label: string;
    exited_at: string | null;
    warehouse: WarehouseOption;
    destination_warehouse: WarehouseOption | null;
    creator: { id: number; name: string } | null;
    lines_count: number;
    lines_quantity: number;
};

type Filters = {
    search: string;
    sort: string;
    direction: 'asc' | 'desc';
    per_page: number;
    warehouse_id: number | null;
    type: string | null;
};

const columnHelper = createColumnHelper<ExitRow>();

function visitExits(params: {
    search: string;
    sort: string;
    direction: 'asc' | 'desc';
    page: number;
    per_page: number;
    warehouse_id: number | null;
    type: string | null;
}) {
    router.get(
        stockExitsIndex.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,
            warehouse_id: params.warehouse_id ?? undefined,
            type: params.type ?? undefined,
        },
        {
            preserveState: true,
            replace: true,
            preserveScroll: true,
        },
    );
}

export default function StockExitsIndex({
    exits,
    warehouses,
    types,
    filters,
    canCreate = false,
}: {
    exits: Paginated<ExitRow>;
    warehouses: WarehouseOption[];
    types: TypeOption[];
    filters: Filters;
    canCreate?: boolean;
}) {
    const isFirstSearchEffect = useRef(true);
    const [isLoading, setIsLoading] = useState(false);
    const [search, setSearch] = useState(filters.search);
    const [warehouseFilter, setWarehouseFilter] = useState<string>(
        filters.warehouse_id ? String(filters.warehouse_id) : 'all',
    );
    const [typeFilter, setTypeFilter] = useState<string>(filters.type ?? 'all');
    const [sorting, setSorting] = useState<SortingState>([
        { id: filters.sort, desc: filters.direction === 'desc' },
    ]);
    const [pagination, setPagination] = useState<PaginationState>({
        pageIndex: exits.current_page - 1,
        pageSize: exits.per_page,
    });

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

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

    useEffect(() => {
        setSearch(filters.search);
        setWarehouseFilter(
            filters.warehouse_id ? String(filters.warehouse_id) : 'all',
        );
        setTypeFilter(filters.type ?? 'all');
        setSorting([{ id: filters.sort, desc: filters.direction === 'desc' }]);
        setPagination({
            pageIndex: exits.current_page - 1,
            pageSize: exits.per_page,
        });
    }, [filters, exits.current_page, exits.per_page]);

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

        const timeout = window.setTimeout(() => {
            visitExits({
                search,
                sort: sorting[0]?.id ?? filters.sort,
                direction: sorting[0]?.desc ? 'desc' : 'asc',
                page: 1,
                per_page: pagination.pageSize,
                warehouse_id:
                    warehouseFilter === 'all'
                        ? null
                        : Number(warehouseFilter),
                type: typeFilter === 'all' ? null : typeFilter,
            });
        }, 300);

        return () => window.clearTimeout(timeout);
    }, [search]);

    const columns = useMemo<ColumnDef<ExitRow, unknown>[]>(
        () => [
            columnHelper.accessor('code', {
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Sortie" />
                ),
                meta: { label: 'Sortie' },
                cell: (info) => (
                    <span className="font-mono text-sm font-medium">
                        {info.getValue()}
                    </span>
                ),
            }),
            columnHelper.accessor('exited_at', {
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Date" />
                ),
                meta: { label: 'Date' },
                cell: (info) => formatDate(info.getValue()),
            }),
            columnHelper.accessor('type', {
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Type" />
                ),
                meta: { label: 'Type' },
                cell: (info) => (
                    <Badge variant="secondary">
                        {info.row.original.type_label}
                    </Badge>
                ),
            }),
            columnHelper.accessor((row) => row.warehouse.name, {
                id: 'warehouse',
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Source" />
                ),
                meta: { label: 'Source' },
                enableSorting: false,
                cell: (info) => (
                    <div className="flex flex-col gap-0.5">
                        <span className="text-sm font-medium">
                            {info.row.original.warehouse.name}
                        </span>
                        <span className="text-muted-foreground font-mono text-xs">
                            {info.row.original.warehouse.code}
                        </span>
                    </div>
                ),
            }),
            columnHelper.display({
                id: 'destination',
                enableSorting: false,
                header: () => 'Destination',
                meta: { label: 'Destination' },
                cell: ({ row }) => {
                    const destination = row.original.destination_warehouse;

                    if (destination === null) {
                        return (
                            <span className="text-muted-foreground">—</span>
                        );
                    }

                    return (
                        <div className="flex flex-col gap-0.5">
                            <span className="text-sm font-medium">
                                {destination.name}
                            </span>
                            <span className="text-muted-foreground font-mono text-xs">
                                {destination.code}
                            </span>
                        </div>
                    );
                },
            }),
            columnHelper.accessor('lines_quantity', {
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Quantité" />
                ),
                meta: { label: 'Quantité' },
                enableSorting: false,
                cell: (info) => (
                    <span className="tabular-nums font-medium">
                        {info.getValue()}
                    </span>
                ),
            }),
            columnHelper.accessor((row) => row.creator?.name ?? '', {
                id: 'creator',
                header: ({ column }) => (
                    <DataTableColumnHeader column={column} title="Créé par" />
                ),
                meta: { label: 'Créé par' },
                enableSorting: false,
                cell: (info) => info.row.original.creator?.name ?? '—',
            }),
            columnHelper.display({
                id: 'actions',
                enableSorting: false,
                enableHiding: false,
                header: () => <div className="text-right">Actions</div>,
                cell: ({ row }) => (
                    <div className="flex justify-end">
                        <Button variant="outline" size="icon" asChild>
                            <Link
                                href={stockExitShow.url(row.original.id)}
                                aria-label={`Voir ${row.original.code}`}
                            >
                                <Eye />
                            </Link>
                        </Button>
                    </div>
                ),
            }),
        ],
        [],
    );

    return (
        <>
            <Head title="Sorties de stock" />

            <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-start sm:justify-between">
                    <Heading
                        title="Sorties de stock"
                        description="Ventes, transferts et consommations internes"
                    />
                    <div className="flex flex-wrap gap-2">
                        <Button variant="outline" asChild>
                            <Link href={stockMovementsIndex.url()}>
                                <History />
                                Historique des mouvements
                            </Link>
                        </Button>
                        {canCreate && (
                            <Button asChild>
                                <Link href={createExit.url()}>
                                    <Plus />
                                    Nouvelle sortie
                                </Link>
                            </Button>
                        )}
                    </div>
                </div>

                <div className="flex flex-wrap gap-3">
                    <Select
                        value={warehouseFilter}
                        onValueChange={(value) => {
                            setWarehouseFilter(value);
                            visitExits({
                                search,
                                sort: sorting[0]?.id ?? filters.sort,
                                direction: sorting[0]?.desc ? 'desc' : 'asc',
                                page: 1,
                                per_page: pagination.pageSize,
                                warehouse_id:
                                    value === 'all' ? null : Number(value),
                                type: typeFilter === 'all' ? null : typeFilter,
                            });
                        }}
                    >
                        <SelectTrigger className="w-55">
                            <SelectValue placeholder="Entrepôt" />
                        </SelectTrigger>
                        <SelectContent>
                            <SelectItem value="all">
                                Tous les entrepôts
                            </SelectItem>
                            {warehouses.map((warehouse) => (
                                <SelectItem
                                    key={warehouse.id}
                                    value={String(warehouse.id)}
                                >
                                    {warehouse.code} — {warehouse.name}
                                </SelectItem>
                            ))}
                        </SelectContent>
                    </Select>

                    <Select
                        value={typeFilter}
                        onValueChange={(value) => {
                            setTypeFilter(value);
                            visitExits({
                                search,
                                sort: sorting[0]?.id ?? filters.sort,
                                direction: sorting[0]?.desc ? 'desc' : 'asc',
                                page: 1,
                                per_page: pagination.pageSize,
                                warehouse_id:
                                    warehouseFilter === 'all'
                                        ? null
                                        : Number(warehouseFilter),
                                type: value === 'all' ? null : value,
                            });
                        }}
                    >
                        <SelectTrigger className="w-55">
                            <SelectValue placeholder="Type" />
                        </SelectTrigger>
                        <SelectContent>
                            <SelectItem value="all">Tous les types</SelectItem>
                            {types.map((type) => (
                                <SelectItem
                                    key={type.value}
                                    value={type.value}
                                >
                                    {type.label}
                                </SelectItem>
                            ))}
                        </SelectContent>
                    </Select>
                </div>

                <DataTable
                    id="admin-stock-exits"
                    columns={columns}
                    data={exits.data}
                    getRowId={(row) => String(row.id)}
                    searchValue={search}
                    onSearchChange={setSearch}
                    searchPlaceholder="Rechercher par code, entrepôt, produit…"
                    isLoading={isLoading}
                    sorting={sorting}
                    onSortingChange={(updater) => {
                        const next =
                            typeof updater === 'function'
                                ? updater(sorting)
                                : updater;
                        setSorting(next);
                        visitExits({
                            search,
                            sort: next[0]?.id ?? filters.sort,
                            direction: next[0]?.desc ? 'desc' : 'asc',
                            page: 1,
                            per_page: pagination.pageSize,
                            warehouse_id:
                                warehouseFilter === 'all'
                                    ? null
                                    : Number(warehouseFilter),
                            type: typeFilter === 'all' ? null : typeFilter,
                        });
                    }}
                    manualSorting
                    pagination={pagination}
                    onPaginationChange={(updater) => {
                        const next =
                            typeof updater === 'function'
                                ? updater(pagination)
                                : updater;
                        const sizeChanged =
                            next.pageSize !== pagination.pageSize;
                        setPagination(next);
                        visitExits({
                            search,
                            sort: sorting[0]?.id ?? filters.sort,
                            direction: sorting[0]?.desc ? 'desc' : 'asc',
                            page: sizeChanged ? 1 : next.pageIndex + 1,
                            per_page: next.pageSize,
                            warehouse_id:
                                warehouseFilter === 'all'
                                    ? null
                                    : Number(warehouseFilter),
                            type: typeFilter === 'all' ? null : typeFilter,
                        });
                    }}
                    manualPagination
                    pageCount={exits.last_page}
                    totalRows={exits.total}
                    emptyMessage="Aucune sortie enregistrée."
                />
            </div>
        </>
    );
}

StockExitsIndex.layout = {
    breadcrumbs: [
        { title: 'Tableau de bord', href: dashboard() },
        { title: 'Sorties de stock', href: '#' },
    ],
};