/**
 * 生產工單管理主頁面
 */

import { useState, useEffect } from "react";
import { Plus, Factory, Search, RotateCcw, Eye } from 'lucide-react';
import { Button } from "@/Components/ui/button";
import AuthenticatedLayout from "@/Layouts/AuthenticatedLayout";
import { Head, router, Link } from "@inertiajs/react";
import Pagination from "@/Components/shared/Pagination";
import { getBreadcrumbs } from "@/utils/breadcrumb";
import { Can } from "@/Components/Permission/Can";
import { SearchableSelect } from "@/Components/ui/searchable-select";
import { Input } from "@/Components/ui/input";
import { Label } from "@/Components/ui/label";
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue,
} from "@/Components/ui/select";
import { Badge } from "@/Components/ui/badge";
import { Table, TableBody, TableCell, TableHead, TableHeader, TableRow } from "@/Components/ui/table";

interface ProductionOrder {
    id: number;
    code: string;
    product: { id: number; name: string; code: string } | null;
    warehouse: { id: number; name: string } | null;
    user: { id: number; name: string } | null;
    output_batch_number: string;
    output_quantity: number;
    production_date: string;
    status: 'draft' | 'completed' | 'cancelled';
    created_at: string;
}

interface Props {
    productionOrders: {
        data: ProductionOrder[];
        links: any[];
        total: number;
        from: number;
        to: number;
    };
    filters: {
        search?: string;
        status?: string;
        per_page?: string;
    };
}

const statusConfig: Record<string, { label: string; variant: "default" | "secondary" | "destructive" | "outline" }> = {
    draft: { label: "草稿", variant: "secondary" },
    completed: { label: "已完成", variant: "default" },
    cancelled: { label: "已取消", variant: "destructive" },
};

export default function ProductionIndex({ productionOrders, filters }: Props) {
    const [search, setSearch] = useState(filters.search || "");
    const [status, setStatus] = useState<string>(filters.status || "all");
    const [perPage, setPerPage] = useState<string>(filters.per_page || "10");

    useEffect(() => {
        setSearch(filters.search || "");
        setStatus(filters.status || "all");
        setPerPage(filters.per_page || "10");
    }, [filters]);

    const handleFilter = () => {
        router.get(
            route('production-orders.index'),
            {
                search,
                status: status === 'all' ? undefined : status,
                per_page: perPage,
            },
            { preserveState: true, replace: true }
        );
    };

    const handleReset = () => {
        setSearch("");
        setStatus("all");
        router.get(route('production-orders.index'));
    };

    const handlePerPageChange = (value: string) => {
        setPerPage(value);
        router.get(
            route("production-orders.index"),
            { ...filters, per_page: value },
            { preserveState: false, replace: true, preserveScroll: true }
        );
    };

    const handleNavigateToCreate = () => {
        router.get(route('production-orders.create'));
    };

    return (
        <AuthenticatedLayout breadcrumbs={getBreadcrumbs("productionOrders")}>
            <Head title="生產工單" />
            <div className="container mx-auto p-6 max-w-7xl">
                <div className="flex items-center justify-between mb-6">
                    <div>
                        <h1 className="text-2xl font-bold text-grey-0 flex items-center gap-2">
                            <Factory className="h-6 w-6 text-primary-main" />
                            生產工單
                        </h1>
                        <p className="text-gray-500 mt-1">
                            記錄生產過程，追蹤原物料使用與成品入庫
                        </p>
                    </div>
                    <div className="flex gap-2">
                        <Can permission="production_orders.create">
                            <Button
                                onClick={handleNavigateToCreate}
                                className="gap-2 button-filled-primary"
                            >
                                <Plus className="h-4 w-4" />
                                建立生產單
                            </Button>
                        </Can>
                    </div>
                </div>

                {/* 篩選區塊 */}
                <div className="bg-white rounded-lg shadow-sm border border-gray-200 mb-6 overflow-hidden">
                    <div className="p-5">
                        <div className="grid grid-cols-1 md:grid-cols-12 gap-4">
                            <div className="md:col-span-8 space-y-1">
                                <Label className="text-xs font-medium text-grey-2">關鍵字搜尋</Label>
                                <div className="relative">
                                    <Search className="absolute left-3 top-1/2 transform -translate-y-1/2 text-gray-400 h-4 w-4" />
                                    <Input
                                        placeholder="搜尋生產單號、批號、商品名稱..."
                                        value={search}
                                        onChange={(e) => setSearch(e.target.value)}
                                        className="pl-10 h-9 block"
                                        onKeyDown={(e) => e.key === 'Enter' && handleFilter()}
                                    />
                                </div>
                            </div>

                            <div className="md:col-span-4 space-y-1">
                                <Label className="text-xs font-medium text-grey-2">狀態</Label>
                                <Select value={status} onValueChange={setStatus}>
                                    <SelectTrigger className="h-9 text-sm">
                                        <SelectValue placeholder="選擇狀態" />
                                    </SelectTrigger>
                                    <SelectContent>
                                        <SelectItem value="all">全部狀態</SelectItem>
                                        <SelectItem value="draft">草稿</SelectItem>
                                        <SelectItem value="completed">已完成</SelectItem>
                                        <SelectItem value="cancelled">已取消</SelectItem>
                                    </SelectContent>
                                </Select>
                            </div>
                        </div>
                    </div>

                    <div className="flex items-center justify-end px-5 py-4 bg-gray-50/50 border-t border-gray-100 gap-3">
                        <Button
                            variant="outline"
                            onClick={handleReset}
                            className="button-outlined-primary h-9 gap-2"
                        >
                            <RotateCcw className="h-4 w-4" />
                            重置
                        </Button>
                        <Button
                            onClick={handleFilter}
                            className="button-filled-primary h-9 px-6 gap-2"
                        >
                            <Search className="h-4 w-4" />
                            搜尋
                        </Button>
                    </div>
                </div>

                {/* 生產單列表 */}
                <div className="bg-white rounded-xl border border-gray-200 shadow-sm overflow-hidden">
                    <Table>
                        <TableHeader className="bg-gray-50">
                            <TableRow>
                                <TableHead className="w-[150px]">生產單號</TableHead>
                                <TableHead>成品</TableHead>
                                <TableHead>成品批號</TableHead>
                                <TableHead className="text-right">數量</TableHead>
                                <TableHead>入庫倉庫</TableHead>
                                <TableHead>生產日期</TableHead>
                                <TableHead className="text-center w-[100px]">狀態</TableHead>
                                <TableHead className="text-center w-[100px]">操作</TableHead>
                            </TableRow>
                        </TableHeader>
                        <TableBody>
                            {productionOrders.data.length === 0 ? (
                                <TableRow>
                                    <TableCell colSpan={8} className="h-32 text-center text-gray-500">
                                        <div className="flex flex-col items-center justify-center gap-2">
                                            <Factory className="h-10 w-10 text-gray-300" />
                                            <p>尚無生產工單</p>
                                        </div>
                                    </TableCell>
                                </TableRow>
                            ) : (
                                productionOrders.data.map((order) => (
                                    <TableRow key={order.id}>
                                        <TableCell className="font-medium text-gray-900">
                                            {order.code}
                                        </TableCell>
                                        <TableCell>
                                            <div className="flex flex-col">
                                                <span className="font-medium text-gray-900">{order.product?.name || '-'}</span>
                                                <span className="text-gray-400 text-xs">
                                                    {order.product?.code || '-'}
                                                </span>
                                            </div>
                                        </TableCell>
                                        <TableCell>
                                            <code className="bg-gray-100 px-1.5 py-0.5 rounded text-xs font-mono">
                                                {order.output_batch_number}
                                            </code>
                                        </TableCell>
                                        <TableCell className="text-right font-medium">
                                            {order.output_quantity.toLocaleString()}
                                        </TableCell>
                                        <TableCell className="text-gray-600">
                                            {order.warehouse?.name || '-'}
                                        </TableCell>
                                        <TableCell className="text-gray-600">
                                            {order.production_date}
                                        </TableCell>
                                        <TableCell className="text-center">
                                            <Badge variant={statusConfig[order.status]?.variant || "secondary"} className="font-normal capitalize">
                                                {statusConfig[order.status]?.label || order.status}
                                            </Badge>
                                        </TableCell>
                                        <TableCell className="text-center">
                                            <div className="flex items-center justify-center">
                                                <Link href={route('production-orders.show', order.id)}>
                                                    <Button
                                                        variant="outline"
                                                        size="sm"
                                                        className="button-outlined-primary h-8"
                                                    >
                                                        <Eye className="h-4 w-4 mr-1" />
                                                        檢視
                                                    </Button>
                                                </Link>
                                            </div>
                                        </TableCell>
                                    </TableRow>
                                ))
                            )}
                        </TableBody>
                    </Table>
                </div>

                {/* 分頁 */}
                <div className="mt-4 flex flex-col sm:flex-row items-start sm:items-center justify-between gap-4">
                    <div className="flex items-center gap-2 text-sm text-gray-500">
                        <span>每頁顯示</span>
                        <SearchableSelect
                            value={perPage}
                            onValueChange={handlePerPageChange}
                            options={[
                                { label: "10", value: "10" },
                                { label: "20", value: "20" },
                                { label: "50", value: "50" },
                                { label: "100", value: "100" }
                            ]}
                            className="w-[100px] h-8"
                            showSearch={false}
                        />
                        <span>筆</span>
                    </div>
                    <div className="w-full sm:w-auto flex justify-center sm:justify-end">
                        <Pagination links={productionOrders.links} />
                    </div>
                </div>
            </div>
        </AuthenticatedLayout>
    );
}
