/**
 * 查看進貨單詳情頁面
 */

import { ArrowLeft, Package } from "lucide-react";
import { Button } from "@/Components/ui/button";
import AuthenticatedLayout from "@/Layouts/AuthenticatedLayout";
import { Head, Link } from "@inertiajs/react";
import GoodsReceiptStatusBadge from "@/Components/Inventory/GoodsReceiptStatusBadge";
import CopyButton from "@/Components/shared/CopyButton";
import {
    Table,
    TableBody,
    TableCell,
    TableHead,
    TableHeader,
    TableRow,
} from "@/Components/ui/table";
import { formatCurrency, formatDate, formatDateTime } from "@/utils/format";
import { getShowBreadcrumbs } from "@/utils/breadcrumb";

interface GoodsReceiptItem {
    id: number;
    product_id: number;
    product: {
        id: number;
        name: string;
        code: string;
        baseUnit?: {
            name: string;
        };
    };
    quantity_received: string | number;
    unit_price: string | number;
    total_amount: string | number;
    batch_number?: string;
    expiry_date?: string;
}

interface GoodsReceipt {
    id: number;
    code: string;
    type: string;
    received_date: string;
    status: string;
    remark?: string;
    warehouse?: {
        name: string;
    };
    vendor?: {
        name: string;
    };
    items: GoodsReceiptItem[];
    items_sum_total_amount: number;
    created_at: string;
}

interface Props {
    receipt: GoodsReceipt;
}

export default function ViewGoodsReceiptPage({ receipt }: Props) {
    const typeMap: Record<string, string> = {
        standard: "標準採購進貨",
        miscellaneous: "雜項入庫",
        other: "其他入庫",
    };

    return (
        <AuthenticatedLayout breadcrumbs={getShowBreadcrumbs("goodsReceipts", `詳情 (#${receipt.code})`)}>
            <Head title={`進貨單詳情 - ${receipt.code}`} />
            <div className="container mx-auto p-6 max-w-7xl">
                {/* Header */}
                <div className="mb-6">
                    <Link href="/goods-receipts">
                        <Button
                            variant="outline"
                            className="gap-2 button-outlined-primary mb-6"
                        >
                            <ArrowLeft className="h-4 w-4" />
                            返回進貨單列表
                        </Button>
                    </Link>

                    <div className="flex items-center justify-between mb-6">
                        <div>
                            <h1 className="text-2xl font-bold text-grey-0 flex items-center gap-2">
                                <Package className="h-6 w-6 text-primary-main" />
                                查看進貨單
                            </h1>
                            <p className="text-gray-500 mt-1">單號：{receipt.code}</p>
                        </div>
                        <div className="flex items-center gap-3">
                            <GoodsReceiptStatusBadge status={receipt.status} />
                        </div>
                    </div>
                </div>

                <div className="grid grid-cols-1 gap-8">
                    {/* 基本資訊卡片 */}
                    <div className="bg-white rounded-lg border shadow-sm p-6">
                        <h2 className="text-lg font-bold text-gray-900 mb-6 border-b pb-4">基本資訊</h2>
                        <div className="grid grid-cols-1 md:grid-cols-2 lg:grid-cols-3 gap-x-8 gap-y-6">
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">進貨單編號</span>
                                <div className="flex items-center gap-1.5">
                                    <span className="font-mono font-medium text-gray-900">{receipt.code}</span>
                                    <CopyButton text={receipt.code} label="複製單號" />
                                </div>
                            </div>
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">入庫類型</span>
                                <span className="font-medium text-gray-900">{typeMap[receipt.type] || receipt.type}</span>
                            </div>
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">倉庫</span>
                                <span className="font-medium text-gray-900">{receipt.warehouse?.name || "-"}</span>
                            </div>
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">供應商</span>
                                <span className="font-medium text-gray-900">{receipt.vendor?.name || "-"}</span>
                            </div>
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">進貨日期</span>
                                <span className="font-medium text-gray-900">{formatDate(receipt.received_date)}</span>
                            </div>
                            <div>
                                <span className="text-sm text-gray-500 block mb-1">建立時間</span>
                                <span className="font-medium text-gray-900">{formatDateTime(receipt.created_at)}</span>
                            </div>
                        </div>
                        {receipt.remark && (
                            <div className="mt-8 pt-6 border-t border-gray-100">
                                <span className="text-sm text-gray-500 block mb-2">備註</span>
                                <p className="text-sm text-gray-700 bg-gray-50 p-4 rounded-lg leading-relaxed">
                                    {receipt.remark}
                                </p>
                            </div>
                        )}
                    </div>

                    {/* 品項清單卡片 */}
                    <div className="bg-white rounded-lg border shadow-sm overflow-hidden">
                        <div className="p-6 border-b border-gray-100">
                            <h2 className="text-lg font-bold text-gray-900">進貨品項清單</h2>
                        </div>
                        <div className="p-0">
                            <div className="overflow-x-auto">
                                <Table>
                                    <TableHeader>
                                        <TableRow className="bg-gray-50/50">
                                            <TableHead className="w-[80px] text-center">#</TableHead>
                                            <TableHead>商品名稱</TableHead>
                                            <TableHead className="text-right">進貨數量</TableHead>
                                            <TableHead className="text-center">單位</TableHead>
                                            <TableHead className="text-right">單價</TableHead>
                                            <TableHead className="text-right">小計</TableHead>
                                            <TableHead>批號</TableHead>
                                            <TableHead>效期</TableHead>
                                        </TableRow>
                                    </TableHeader>
                                    <TableBody>
                                        {receipt.items.length === 0 ? (
                                            <TableRow>
                                                <TableCell colSpan={8} className="h-24 text-center text-gray-500">
                                                    無品項資料
                                                </TableCell>
                                            </TableRow>
                                        ) : (
                                            receipt.items.map((item, index) => (
                                                <TableRow key={item.id}>
                                                    <TableCell className="text-center text-gray-500">{index + 1}</TableCell>
                                                    <TableCell>
                                                        <div className="flex flex-col">
                                                            <span className="font-medium text-gray-900">{item.product.name}</span>
                                                            <span className="text-xs text-gray-500 font-mono">{item.product.code}</span>
                                                        </div>
                                                    </TableCell>
                                                    <TableCell className="text-right font-medium">
                                                        {Number(item.quantity_received).toLocaleString()}
                                                    </TableCell>
                                                    <TableCell className="text-center">
                                                        {item.product.baseUnit?.name || "個"}
                                                    </TableCell>
                                                    <TableCell className="text-right">
                                                        {formatCurrency(Number(item.unit_price))}
                                                    </TableCell>
                                                    <TableCell className="text-right font-bold text-primary">
                                                        {formatCurrency(Number(item.total_amount))}
                                                    </TableCell>
                                                    <TableCell>
                                                        <span className="text-sm font-mono">{item.batch_number || "-"}</span>
                                                    </TableCell>
                                                    <TableCell>
                                                        <span className="text-sm">{item.expiry_date ? formatDate(item.expiry_date) : "-"}</span>
                                                    </TableCell>
                                                </TableRow>
                                            ))
                                        )}
                                    </TableBody>
                                </Table>
                            </div>

                            {/* 總計 */}
                            <div className="p-6 border-t border-gray-100 flex justify-end">
                                <div className="w-full max-w-xs bg-gray-50/50 px-6 py-4 rounded-xl border border-gray-100 flex flex-col gap-3">
                                    <div className="flex justify-between items-end w-full">
                                        <span className="text-sm text-gray-500 font-medium mb-1">總計金額</span>
                                        <span className="text-2xl font-black text-primary">
                                            {formatCurrency(receipt.items_sum_total_amount)}
                                        </span>
                                    </div>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </AuthenticatedLayout>
    );
}
