import { useState, useEffect, useMemo } from "react";
import AuthenticatedLayout from "@/Layouts/AuthenticatedLayout";
import { Head, router, Link, usePage } from "@inertiajs/react";
import { Button } from "@/Components/ui/button";
import { Input } from "@/Components/ui/input";
import { Label } from "@/Components/ui/label";
import {
    Table,
    TableBody,
    TableCell,
    TableHead,
    TableHeader,
    TableRow,
} from "@/Components/ui/table";
import { StatusBadge } from "@/Components/shared/StatusBadge";
import { SearchableSelect } from "@/Components/ui/searchable-select";

import {
    AlertDialog,
    AlertDialogAction,
    AlertDialogCancel,
    AlertDialogContent,
    AlertDialogDescription,
    AlertDialogFooter,
    AlertDialogHeader,
    AlertDialogTitle,
    AlertDialogTrigger,
} from "@/Components/ui/alert-dialog";
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue,
} from "@/Components/ui/select";
import { Plus, Save, Trash2, ArrowLeft, CheckCircle, Package, ArrowLeftRight, Printer, Truck, PackageCheck } from "lucide-react";
import { toast } from "sonner";
import axios from "axios";
import { Can } from '@/Components/Permission/Can';
import { usePermission } from '@/hooks/usePermission';
import TransferImportDialog from '@/Components/Transfer/TransferImportDialog';

interface TransitWarehouse {
    id: string;
    name: string;
    license_plate: string | null;
    driver_name: string | null;
}

export default function Show({ order, transitWarehouses = [] }: { order: any; transitWarehouses?: TransitWarehouse[] }) {
    const { can } = usePermission();
    const { url } = usePage();

    // 解析 URL query 參數，判斷使用者從哪裡來
    const backNav = useMemo(() => {
        const params = new URLSearchParams(url.split('?')[1] || '');
        const from = params.get('from');
        if (from === 'requisition') {
            const fromId = params.get('from_id');
            const fromDoc = params.get('from_doc') || '';
            return {
                href: route('store-requisitions.show', [fromId!]),
                label: `返回叫貨單: ${decodeURIComponent(fromDoc)}`,
                breadcrumbs: [
                    { label: '商品與庫存管理', href: '#' },
                    { label: '門市叫貨申請', href: route('store-requisitions.index') },
                    { label: `叫貨單: ${decodeURIComponent(fromDoc)}`, href: route('store-requisitions.show', [fromId!]) },
                    { label: `調撥單: ${order.doc_no}`, href: route('inventory.transfer.show', [order.id]), isPage: true },
                ],
            };
        }
        return {
            href: route('inventory.transfer.index'),
            label: '返回調撥單列表',
            breadcrumbs: [
                { label: '商品與庫存管理', href: '#' },
                { label: '庫存調撥', href: route('inventory.transfer.index') },
                { label: `調撥單: ${order.doc_no}`, href: route('inventory.transfer.show', [order.id]), isPage: true },
            ],
        };
    }, [url, order]);

    const [items, setItems] = useState(order.items || []);
    const [remarks, setRemarks] = useState(order.remarks || "");

    // 狀態初始化
    const [transitWarehouseId, setTransitWarehouseId] = useState<string | null>(order.transit_warehouse_id || null);



    const [isSaving, setIsSaving] = useState(false);
    const [deleteId, setDeleteId] = useState<string | null>(null);
    const [isPostDialogOpen, setIsPostDialogOpen] = useState(false);
    const [isReceiveDialogOpen, setIsReceiveDialogOpen] = useState(false);
    const [isImportDialogOpen, setIsImportDialogOpen] = useState(false);

    // 判斷是否有在途倉流程 (包含前端暫選的)
    const hasTransit = !!transitWarehouseId;

    // 取得選中的在途倉資訊
    const selectedTransitWarehouse = transitWarehouses.find(w => w.id === transitWarehouseId);

    // 當 order prop 變動時 (例如匯入後 router.reload)，同步更新內部狀態
    useEffect(() => {
        if (order) {
            setItems(order.items || []);
            setRemarks(order.remarks || "");
            setTransitWarehouseId(order.transit_warehouse_id || null);
        }
    }, [order]);

    const canEdit = can('inventory_transfer.edit');
    const isReadOnly = (order.status !== 'draft' || !canEdit);
    const isItemsReadOnly = isReadOnly || !!order.requisition;
    const isVending = order.to_warehouse_type === 'vending';

    // Product Selection
    const [availableInventory, setAvailableInventory] = useState<any[]>([]);
    const [loadingInventory, setLoadingInventory] = useState(false);

    useEffect(() => {
        if (!isItemsReadOnly && order.from_warehouse_id) {
            loadInventory();
        }
    }, [isItemsReadOnly, order.from_warehouse_id]);

    const loadInventory = async () => {
        setLoadingInventory(true);
        try {
            const response = await axios.get(route('api.warehouses.inventories', order.from_warehouse_id));
            setAvailableInventory(response.data);
        } catch (error) {
            console.error("Failed to load inventory", error);
            toast.error("無法載入庫存資料");
        } finally {
            setLoadingInventory(false);
        }
    };

    const handleAddItem = () => {
        setItems([
            ...items,
            {
                product_id: "",
                product_name: "",
                product_code: "",
                batch_number: "",
                expiry_date: null,
                unit: "",
                quantity: "",
                max_quantity: 0,
                position: "",
                notes: ""
            }
        ]);
    };

    const handleUpdateItem = (index: number, field: string, value: any) => {
        const newItems = [...items];
        newItems[index][field] = value;
        setItems(newItems);
    };

    const handleRemoveItem = (index: number) => {
        const newItems = items.filter((_: any, i: number) => i !== index);
        setItems(newItems);
    };

    const handleSave = async () => {
        setIsSaving(true);
        try {
            const payload: any = {
                remarks: remarks,
                transit_warehouse_id: transitWarehouseId || '',
            };

            if (!order.requisition) {
                payload.items = items;
            }

            await router.put(route('inventory.transfer.update', [order.id]), payload, {
                onSuccess: () => { },
                onError: () => toast.error("儲存失敗，請檢查輸入"),
            });
        } finally {
            setIsSaving(false);
        }
    };

    // 確認出貨 / 確認過帳（無在途倉） 
    const handlePost = () => {
        const payload: any = {
            action: 'post',
            transit_warehouse_id: transitWarehouseId || '',
            remarks: remarks,
        };

        if (!order.requisition) {
            payload.items = items;
        }

        router.put(route('inventory.transfer.update', [order.id]), payload, {
            onSuccess: () => {
                setIsPostDialogOpen(false);
            },
            onError: (errors) => {
                const message = Object.values(errors).join('\n') || "操作失敗，請檢查輸入或庫存狀態";
                toast.error(message);
                setIsPostDialogOpen(false);
            }
        });
    };

    // 確認收貨
    const handleReceive = () => {
        router.put(route('inventory.transfer.update', [order.id]), {
            action: 'receive'
        }, {
            onSuccess: () => {
                setIsReceiveDialogOpen(false);
            },
            onError: (errors) => {
                const message = Object.values(errors).join('\n') || "收貨失敗";
                toast.error(message);
                setIsReceiveDialogOpen(false);
            }
        });
    };

    const handleDelete = () => {
        router.delete(route('inventory.transfer.destroy', [order.id]), {
            onSuccess: () => {
                setDeleteId(null);
            }
        });
    };



    // 狀態 Badge 渲染
    const renderStatusBadge = () => {
        const statusConfig: Record<string, { variant: "success" | "warning" | "neutral" | "destructive" | "info", label: string }> = {
            completed: { variant: 'success', label: '已完成' },
            dispatched: { variant: 'warning', label: '配送中' },
            draft: { variant: 'neutral', label: '草稿' },
            voided: { variant: 'destructive', label: '已作廢' },
        };

        const config = statusConfig[order.status] || { variant: 'neutral', label: order.status };

        return <StatusBadge variant={config.variant}>{config.label}</StatusBadge>;
    };

    // 過帳時庫存欄標題
    const stockColumnTitle = () => {
        if (order.status === 'completed' || order.status === 'dispatched') return '出貨時庫存';
        return '可用庫存';
    };

    return (
        <AuthenticatedLayout
            breadcrumbs={backNav.breadcrumbs as any}
        >
            <Head title={`調撥單 ${order.doc_no}`} />

            <div className="container mx-auto p-6 max-w-7xl animate-in fade-in duration-500 space-y-6">
                <div>
                    <Link href={backNav.href}>
                        <Button
                            variant="outline"
                            className="gap-2 button-outlined-primary mb-6"
                        >
                            <ArrowLeft className="h-4 w-4" />
                            {backNav.label}
                        </Button>
                    </Link>

                    <div className="flex flex-col md:flex-row md:items-center justify-between gap-4">
                        <div>
                            <div className="flex items-center gap-2">
                                <h1 className="text-2xl font-bold text-grey-0 flex items-center gap-2">
                                    <ArrowLeftRight className="h-6 w-6 text-primary-main" />
                                    調撥單: {order.doc_no}
                                </h1>
                                {renderStatusBadge()}
                            </div>
                            <p className="text-sm text-gray-500 mt-1 font-medium">
                                來源: {order.from_warehouse_name} <ArrowLeftRight className="inline-block h-3 w-3 mx-1" /> 目的: {order.to_warehouse_name} <span className="mx-2">|</span> 建立人: {order.created_by}
                            </p>
                        </div>

                        <div className="flex items-center gap-2">
                            <Button
                                variant="outline"
                                size="sm"
                                className="button-outlined-primary"
                                onClick={() => window.print()}
                            >
                                <Printer className="w-4 h-4 mr-2" />
                                列印
                            </Button>

                            {/* 草稿狀態：儲存 + 出貨/過帳 + 刪除 */}
                            {!isReadOnly && (
                                <div className="flex items-center gap-2">
                                    <Can permission="inventory_transfer.delete">
                                        <AlertDialog open={!!deleteId} onOpenChange={(open) => !open && setDeleteId(null)}>
                                            <AlertDialogTrigger asChild>
                                                <Button variant="outline" size="sm" className="button-outlined-error" onClick={() => setDeleteId(order.id)}>
                                                    <Trash2 className="w-4 h-4 mr-2" />
                                                    刪除
                                                </Button>
                                            </AlertDialogTrigger>
                                            <AlertDialogContent>
                                                <AlertDialogHeader>
                                                    <AlertDialogTitle>確定要刪除此調撥單嗎？</AlertDialogTitle>
                                                    <AlertDialogDescription>
                                                        此動作無法復原。如果單據已存在重要資料，請謹慎操作。
                                                    </AlertDialogDescription>
                                                </AlertDialogHeader>
                                                <AlertDialogFooter>
                                                    <AlertDialogCancel>取消</AlertDialogCancel>
                                                    <AlertDialogAction onClick={handleDelete} className="button-filled-error">確認刪除</AlertDialogAction>
                                                </AlertDialogFooter>
                                            </AlertDialogContent>
                                        </AlertDialog>
                                    </Can>

                                    <Can permission="inventory_transfer.edit">
                                        <Button
                                            variant="outline"
                                            size="sm"
                                            className="button-outlined-primary"
                                            onClick={handleSave}
                                            disabled={isSaving}
                                        >
                                            <Save className="w-4 h-4 mr-2" />
                                            儲存草稿
                                        </Button>

                                        <AlertDialog open={isPostDialogOpen} onOpenChange={setIsPostDialogOpen}>
                                            <AlertDialogTrigger asChild>
                                                <Button
                                                    size="sm"
                                                    className="button-filled-primary"
                                                    disabled={items.length === 0 || isSaving}
                                                >
                                                    {hasTransit ? (
                                                        <><Truck className="w-4 h-4 mr-2" />確認出貨</>
                                                    ) : (
                                                        <><CheckCircle className="w-4 h-4 mr-2" />確認過帳</>
                                                    )}
                                                </Button>
                                            </AlertDialogTrigger>
                                            <AlertDialogContent>
                                                <AlertDialogHeader>
                                                    <AlertDialogTitle>
                                                        {hasTransit ? '確定要出貨嗎？' : '確定要過帳嗎？'}
                                                    </AlertDialogTitle>
                                                    <AlertDialogDescription>
                                                        {hasTransit ? (
                                                            <>庫存將從「{order.from_warehouse_name}」移至在途倉「{selectedTransitWarehouse?.name || order.transit_warehouse_name}」，等待目的倉庫確認收貨後才完成調撥。</>
                                                        ) : (
                                                            <>過帳後庫存將立即從「{order.from_warehouse_name}」轉移至「{order.to_warehouse_name}」，且無法再進行修改。</>
                                                        )}
                                                    </AlertDialogDescription>
                                                </AlertDialogHeader>
                                                <AlertDialogFooter>
                                                    <AlertDialogCancel>取消</AlertDialogCancel>
                                                    <AlertDialogAction onClick={handlePost} className="button-filled-primary">
                                                        {hasTransit ? '確認出貨' : '確認過帳'}
                                                    </AlertDialogAction>
                                                </AlertDialogFooter>
                                            </AlertDialogContent>
                                        </AlertDialog>
                                    </Can>
                                </div>
                            )}

                            {/* 已出貨狀態：確認收貨按鈕 */}
                            {order.status === 'dispatched' && (
                                <Can permission="inventory_transfer.edit">
                                    <AlertDialog open={isReceiveDialogOpen} onOpenChange={setIsReceiveDialogOpen}>
                                        <AlertDialogTrigger asChild>
                                            <Button
                                                size="sm"
                                                className="bg-green-600 hover:bg-green-700 text-white"
                                            >
                                                <PackageCheck className="w-4 h-4 mr-2" />
                                                確認收貨
                                            </Button>
                                        </AlertDialogTrigger>
                                        <AlertDialogContent>
                                            <AlertDialogHeader>
                                                <AlertDialogTitle>確定要確認收貨嗎？</AlertDialogTitle>
                                                <AlertDialogDescription>
                                                    庫存將從在途倉「{order.transit_warehouse_name}」移至目的倉庫「{order.to_warehouse_name}」，完成此次調撥流程。
                                                </AlertDialogDescription>
                                            </AlertDialogHeader>
                                            <AlertDialogFooter>
                                                <AlertDialogCancel>取消</AlertDialogCancel>
                                                <AlertDialogAction onClick={handleReceive} className="bg-green-600 hover:bg-green-700 text-white">確認收貨</AlertDialogAction>
                                            </AlertDialogFooter>
                                        </AlertDialogContent>
                                    </AlertDialog>
                                </Can>
                            )}
                        </div>
                    </div>
                </div>

                {/* 在途倉資訊卡片 */}
                {(hasTransit || transitWarehouses.length > 0) && (
                    <div className="bg-white rounded-lg shadow-sm border p-6 space-y-4">
                        <div className="flex items-center gap-2">
                            <Truck className="h-5 w-5 text-orange-500" />
                            <Label className="text-gray-700 font-semibold text-base">在途倉庫（配送車輛）</Label>
                        </div>

                        {order.status === 'draft' && canEdit ? (
                            /* 草稿狀態：可選擇在途倉 */
                            <div className="grid grid-cols-1 md:grid-cols-3 gap-4">
                                <div>
                                    <Label className="text-xs text-gray-500 mb-1 block">選擇在途倉庫</Label>
                                    <Select
                                        value={transitWarehouseId || ''}
                                        onValueChange={(v) => setTransitWarehouseId(v === 'none' ? null : v)}
                                    >
                                        <SelectTrigger className="h-9">
                                            <SelectValue placeholder="不使用在途倉（直接過帳）" />
                                        </SelectTrigger>
                                        <SelectContent>
                                            <SelectItem value="none">不使用在途倉（直接過帳）</SelectItem>
                                            {transitWarehouses.map((w) => (
                                                <SelectItem key={w.id} value={w.id}>
                                                    {w.name} {w.license_plate ? `(${w.license_plate})` : ''}
                                                </SelectItem>
                                            ))}
                                        </SelectContent>
                                    </Select>
                                </div>
                                {selectedTransitWarehouse && (
                                    <>
                                        <div>
                                            <Label className="text-xs text-gray-500 mb-1 block">車牌</Label>
                                            <div className="text-sm font-medium text-gray-700 p-2 bg-gray-50 rounded border">
                                                {selectedTransitWarehouse.license_plate || '-'}
                                            </div>
                                        </div>
                                        <div>
                                            <Label className="text-xs text-gray-500 mb-1 block">司機</Label>
                                            <div className="text-sm font-medium text-gray-700 p-2 bg-gray-50 rounded border">
                                                {selectedTransitWarehouse.driver_name || '-'}
                                            </div>
                                        </div>
                                    </>
                                )}
                            </div>
                        ) : hasTransit ? (
                            /* 非草稿狀態：唯讀顯示在途倉資訊 */
                            <div className="grid grid-cols-2 md:grid-cols-4 gap-4">
                                <div>
                                    <Label className="text-xs text-gray-500 mb-1 block">在途倉庫</Label>
                                    <div className="text-sm font-semibold text-gray-700">{order.transit_warehouse_name}</div>
                                </div>
                                <div>
                                    <Label className="text-xs text-gray-500 mb-1 block">車牌</Label>
                                    <div className="text-sm font-medium text-gray-700">{order.transit_warehouse_plate || '-'}</div>
                                </div>
                                <div>
                                    <Label className="text-xs text-gray-500 mb-1 block">司機</Label>
                                    <div className="text-sm font-medium text-gray-700">{order.transit_warehouse_driver || '-'}</div>
                                </div>
                                <div>
                                    <Label className="text-xs text-gray-500 mb-1 block">狀態</Label>
                                    <div className="text-sm font-medium">
                                        {order.status === 'dispatched' && (
                                            <span className="text-orange-600">配送中（{order.dispatched_at}）</span>
                                        )}
                                        {order.status === 'completed' && (
                                            <span className="text-green-600">已收貨（{order.received_at}）</span>
                                        )}
                                    </div>
                                </div>
                            </div>
                        ) : null}

                        {/* 顯示時間軸（已出貨或已完成時） */}
                        {(order.dispatched_at || order.received_at) && (
                            <div className="border-t pt-3 mt-3 flex flex-wrap gap-6 text-sm text-gray-500">
                                {order.dispatched_at && (
                                    <div className="flex items-center gap-1.5">
                                        <Truck className="h-3.5 w-3.5 text-orange-400" />
                                        <span>出貨：{order.dispatched_at}</span>
                                        <span className="text-gray-400">({order.dispatched_by})</span>
                                    </div>
                                )}
                                {order.received_at && (
                                    <div className="flex items-center gap-1.5">
                                        <PackageCheck className="h-3.5 w-3.5 text-green-500" />
                                        <span>收貨：{order.received_at}</span>
                                        <span className="text-gray-400">({order.received_by})</span>
                                    </div>
                                )}
                            </div>
                        )}
                    </div>
                )}

                <div className="bg-white rounded-lg shadow-sm border p-6 space-y-4">
                    <div className="flex items-center justify-between">
                        <Label className="text-gray-500 font-semibold">備註資訊</Label>
                    </div>
                    {isReadOnly ? (
                        <div className="text-gray-700 p-2 bg-gray-50 rounded border text-sm min-h-[40px]">
                            {order.remarks || '無備註'}
                        </div>
                    ) : (
                        <Input
                            value={remarks || ""}
                            onChange={(e) => setRemarks(e.target.value)}
                            className="h-9 focus:ring-primary-main"
                            placeholder="填寫調撥單備註..."
                        />
                    )}
                </div>

                <div className="bg-white rounded-lg shadow-sm border p-6 space-y-4">
                    <div className="flex items-center justify-between">
                        <div>
                            <h3 className="font-semibold text-lg text-grey-900">調撥明細</h3>
                            <p className="text-sm text-grey-500">
                                請選擇要調撥的商品並輸入數量。所有商品將從「{order.from_warehouse_name}」轉出。
                            </p>
                        </div>
                        {!isItemsReadOnly && (
                            <div className="flex gap-2">
                                <Button variant="outline" className="button-outlined-primary" onClick={() => setIsImportDialogOpen(true)}>
                                    <Package className="h-4 w-4 mr-2" />
                                    匯入 Excel
                                </Button>
                                <TransferImportDialog
                                    open={isImportDialogOpen}
                                    onOpenChange={setIsImportDialogOpen}
                                    orderId={order.id}
                                />
                                <Button variant="outline" className="button-outlined-primary" onClick={handleAddItem}>
                                    <Plus className="h-4 w-4 mr-2" />
                                    新增明細
                                </Button>
                            </div>
                        )}
                    </div>

                    <div className="border rounded-lg overflow-hidden">
                        <Table>
                            <TableHeader className="bg-gray-50">
                                <TableRow>
                                    <TableHead className="w-[50px] text-center font-medium text-grey-600">#</TableHead>
                                    <TableHead className="font-medium text-grey-600">商品名稱 / 代號</TableHead>
                                    <TableHead className="font-medium text-grey-600">批號</TableHead>
                                    <TableHead className="text-right w-32 font-medium text-grey-600">
                                        {stockColumnTitle()}
                                    </TableHead>
                                    <TableHead className="text-right w-40 font-medium text-grey-600">調撥數量</TableHead>
                                    <TableHead className="font-medium text-grey-600">單位</TableHead>
                                    {isVending && <TableHead className="font-medium text-grey-600">貨道</TableHead>}
                                    <TableHead className="font-medium text-grey-600">備註</TableHead>
                                    {!isItemsReadOnly && <TableHead className="w-[50px]"></TableHead>}
                                </TableRow>
                            </TableHeader>
                            <TableBody>
                                {items.length === 0 ? (
                                    <TableRow>
                                        <TableCell colSpan={isVending ? 9 : 8} className="text-center h-24 text-gray-500">
                                            尚未加入商品
                                        </TableCell>
                                    </TableRow>
                                ) : (
                                    items.map((item: any, index: number) => (
                                        <TableRow key={index}>
                                            <TableCell className="text-center text-gray-500 font-medium">{index + 1}</TableCell>
                                            <TableCell className="py-3">
                                                {isItemsReadOnly || item.product_id ? (
                                                    <div className="flex flex-col">
                                                        <span className="font-semibold text-gray-900">{item.product_name}</span>
                                                        <span className="text-xs text-gray-500 font-mono">{item.product_code}</span>
                                                    </div>
                                                ) : (
                                                    <SearchableSelect
                                                        value={item.product_id ? `${item.product_id}|${item.batch_number || ''}` : ""}
                                                        onValueChange={(val) => {
                                                            const [pid, batch] = val.split('|');
                                                            const inv = availableInventory.find(i => String(i.product_id) === pid && (i.batch_number || '') === batch);
                                                            if (inv) {
                                                                const newItems = [...items];
                                                                newItems[index] = {
                                                                    ...newItems[index],
                                                                    product_id: inv.product_id,
                                                                    product_name: inv.product_name,
                                                                    product_code: inv.product_code,
                                                                    batch_number: inv.batch_number,
                                                                    expiry_date: inv.expiry_date,
                                                                    unit: inv.unit_name,
                                                                    max_quantity: inv.quantity,
                                                                    quantity: newItems[index].quantity || 1
                                                                };
                                                                setItems(newItems);
                                                            }
                                                        }}
                                                        options={availableInventory.map(inv => ({
                                                            label: `${inv.product_code} - ${inv.product_name} ${inv.batch_number ? `(批號: ${inv.batch_number})` : ''} - 庫存: ${inv.quantity}`,
                                                            value: `${inv.product_id}|${inv.batch_number || ''}`
                                                        }))}
                                                        placeholder={loadingInventory ? "載入庫存中..." : "搜尋名稱或代號選擇庫存"}
                                                        className="w-full min-w-[200px]"
                                                    />
                                                )}
                                            </TableCell>
                                            <TableCell className="text-sm font-mono">
                                                <div>{item.batch_number || '-'}</div>
                                                {item.expiry_date && (
                                                    <div className="text-xs text-gray-400 mt-1">
                                                        效期: {item.expiry_date}
                                                    </div>
                                                )}
                                            </TableCell>
                                            <TableCell className="text-right font-semibold text-primary-main">
                                                {item.product_id ? `${item.max_quantity} ${item.unit || item.unit_name || ''}` : '-'}
                                            </TableCell>
                                            <TableCell className="px-1 py-3">
                                                {isItemsReadOnly ? (
                                                    <div className="text-right font-semibold mr-2">{item.quantity}</div>
                                                ) : (
                                                    <div className="flex flex-col gap-1 items-end pr-2">
                                                        <Input
                                                            type="number"
                                                            min="0.01"
                                                            step="any"
                                                            value={item.quantity ?? ""}
                                                            onChange={(e) => handleUpdateItem(index, 'quantity', e.target.value)}
                                                            className="h-9 w-32 font-medium focus:ring-primary-main text-right"
                                                        />
                                                    </div>
                                                )}
                                            </TableCell>
                                            <TableCell className="text-sm text-gray-500">{item.unit || item.unit_name}</TableCell>
                                            {isVending && (
                                                <TableCell className="px-1">
                                                    {isItemsReadOnly ? (
                                                        <span className="text-sm font-medium">{item.position}</span>
                                                    ) : (
                                                        <Input
                                                            value={item.position || ""}
                                                            onChange={(e) => handleUpdateItem(index, 'position', e.target.value)}
                                                            placeholder="貨道..."
                                                            className="h-9 w-24 text-sm font-medium"
                                                        />
                                                    )}
                                                </TableCell>
                                            )}
                                            <TableCell className="px-1">
                                                {isItemsReadOnly ? (
                                                    <span className="text-sm text-gray-600">{item.notes}</span>
                                                ) : (
                                                    <Input
                                                        value={item.notes || ""}
                                                        onChange={(e) => handleUpdateItem(index, 'notes', e.target.value)}
                                                        placeholder="備註..."
                                                        className="h-9 text-sm"
                                                    />
                                                )}
                                            </TableCell>
                                            {!isItemsReadOnly && (
                                                <TableCell className="text-center">
                                                    <Button variant="outline" size="icon" className="button-outlined-error h-8 w-8" onClick={() => handleRemoveItem(index)}>
                                                        <Trash2 className="h-4 w-4" />
                                                    </Button>
                                                </TableCell>
                                            )}
                                        </TableRow>
                                    ))
                                )}
                            </TableBody>
                        </Table>
                    </div>
                </div>
            </div>
        </AuthenticatedLayout>
    );
}