import { Head, router } from '@inertiajs/react';
import { Filter, Plus, X } from 'lucide-react';
import { useCallback, useMemo, useState } from 'react';
import { CardTable } from '@/components/card-table';
import { useCardTableExpand } from '@/components/hooks/use-card-table-expand';
import { ConfirmDialog } from '@/components/confirm-dialog';
import { Button } from '@/components/ui/button';
import {
    Combobox,
    ComboboxContent,
    ComboboxEmpty,
    ComboboxInput,
    ComboboxItem,
    ComboboxList,
} from '@/components/ui/combobox';
import {
    Popover,
    PopoverContent,
    PopoverTrigger,
} from '@/components/ui/popover';
import {
    Select,
    SelectContent,
    SelectItem,
    SelectTrigger,
    SelectValue,
} from '@/components/ui/select';
import {
    destroy,
    create as productCreate,
    index as productIndex,
    edit as productEdit,
    toggleStatus,
} from '@/routes/admin/master/products';
import {
    destroy as variantDestroy,
    edit as variantEdit,
} from '@/routes/admin/master/products/variants';
import type { Product, ProductVariant } from './columns';
import { ProductCardRow } from './product-card';
import { VariantSubRow } from './variant/sub-row';

type Props = {
    products: {
        data: Product[];
        current_page: number;
        last_page: number;
        per_page: number;
        total: number;
    };
    categories: {
        id: number;
        name: string;
    }[];
    filters: {
        status?: string;
        name?: string;
        stock?: string;
        category?: string;
    };
};

export default function ProductIndex({ products, categories, filters }: Props) {
    const [deleting, setDeleting] = useState<Product | null>(null);
    const [deletingVariant, setDeletingVariant] = useState<{
        product: Product;
        variant: ProductVariant;
    } | null>(null);
    const [filterOpen, setFilterOpen] = useState(false);
    const [search, setSearch] = useState('');
    const expand = useCardTableExpand(true);
    const hasActiveFilters =
        filters.status || filters.name || filters.stock || filters.category;

    const pagination = {
        current_page: products.current_page,
        last_page: products.last_page,
        per_page: products.per_page,
        total: products.total,
    };

    const productNames = useMemo(() => {
        const names = products.data.map((p) => p.name);
        return [...new Set(names)].sort();
    }, [products.data]);

    const selectedCategory = useMemo(
        () =>
            categories.find((c) => String(c.id) === filters.category) ?? null,
        [categories, filters.category],
    );

    function applyFilter(key: string, value: string) {
        const newFilters = { ...filters };

        if (value === '' || value === 'all') {
            delete newFilters[key as keyof typeof newFilters];
        } else {
            newFilters[key as keyof typeof newFilters] = value;
        }

        router.get(productIndex(), newFilters, {
            preserveState: true,
            replace: true,
        });
    }

    function clearFilters() {
        router.get(
            productIndex(),
            {},
            {
                preserveState: true,
                replace: true,
            },
        );
        setFilterOpen(false);
    }

    function handlePageChange(page: number) {
        router.get(
            productIndex.url(),
            {
                page,
                per_page: pagination.per_page,
                search,
                ...filters,
            },
            { preserveState: true, replace: true },
        );
    }

    function handlePerPageChange(perPage: number) {
        router.get(
            productIndex.url(),
            {
                page: 1,
                per_page: perPage,
                search,
                ...filters,
            },
            { preserveState: true, replace: true },
        );
    }

    const handleSearchChange = useCallback(
        (value: string) => {
            setSearch(value);
            router.get(
                productIndex.url(),
                {
                    page: 1,
                    per_page: pagination.per_page,
                    search: value,
                    ...filters,
                },
                { preserveState: true, replace: true },
            );
        },
        [pagination.per_page, filters],
    );

    function handleDelete() {
        if (!deleting) {
            return;
        }

        router.delete(destroy.url(deleting.id), {
            onSuccess: () => setDeleting(null),
        });
    }

    function handleDeleteVariant() {
        if (!deletingVariant) {
            return;
        }

        router.delete(
            variantDestroy.url({
                product: deletingVariant.product.id,
                variant: deletingVariant.variant.id,
            }),
            {
                onSuccess: () => setDeletingVariant(null),
            },
        );
    }

    const filterToolbar = (
        <Popover open={filterOpen} onOpenChange={setFilterOpen}>
            <PopoverTrigger asChild>
                <Button variant="outline" size="sm">
                    <Filter className="h-4 w-4" />
                    Filter
                    {hasActiveFilters && (
                        <span className="ml-1 flex h-5 w-5 items-center justify-center rounded-full bg-primary text-xs text-primary-foreground">
                            {Object.values(filters).filter(Boolean).length}
                        </span>
                    )}
                </Button>
            </PopoverTrigger>
            <PopoverContent className="w-64" align="end">
                <div className="flex flex-col gap-4">
                    <div className="flex items-center justify-between">
                        <span className="text-sm font-medium">Filter</span>
                        {hasActiveFilters && (
                            <Button
                                variant="ghost"
                                size="sm"
                                className="h-6 px-2 text-xs"
                                onClick={clearFilters}
                            >
                                <X className="mr-1 h-3 w-3" />
                                Hapus Semua
                            </Button>
                        )}
                    </div>

                    <div className="flex flex-col gap-2">
                        <label className="text-xs text-muted-foreground">
                            Nama Produk
                        </label>
                        <Combobox
                            items={productNames}
                            value={filters.name ?? ''}
                            onValueChange={(value) =>
                                applyFilter('name', (value as string) ?? '')
                            }
                        >
                            <ComboboxInput
                                placeholder="Pilih produk..."
                                className="w-full"
                            />
                            <ComboboxContent>
                                <ComboboxEmpty>
                                    Tidak ada produk ditemukan.
                                </ComboboxEmpty>
                                <ComboboxList>
                                    {(name) => (
                                        <ComboboxItem value={name}>
                                            {name}
                                        </ComboboxItem>
                                    )}
                                </ComboboxList>
                            </ComboboxContent>
                        </Combobox>
                    </div>

                    <div className="flex flex-col gap-2">
                        <label className="text-xs text-muted-foreground">
                            Status
                        </label>
                        <Select
                            value={filters.status ?? 'all'}
                            onValueChange={(value) =>
                                applyFilter('status', value)
                            }
                        >
                            <SelectTrigger className="w-full">
                                <SelectValue placeholder="Semua Status" />
                            </SelectTrigger>
                            <SelectContent>
                                <SelectItem value="all">
                                    Semua Status
                                </SelectItem>
                                <SelectItem value="active">Aktif</SelectItem>
                                <SelectItem value="inactive">
                                    Non Aktif
                                </SelectItem>
                                <SelectItem value="draft">Draft</SelectItem>
                            </SelectContent>
                        </Select>
                    </div>

                    <div className="flex flex-col gap-2">
                        <label className="text-xs text-muted-foreground">
                            Stok
                        </label>
                        <span className="-mt-1 text-[0.65rem] text-muted-foreground/70">
                            Berdasarkan stok bagus
                        </span>
                        <Select
                            value={filters.stock ?? 'all'}
                            onValueChange={(value) =>
                                applyFilter('stock', value)
                            }
                        >
                            <SelectTrigger className="w-full">
                                <SelectValue placeholder="Semua Stok" />
                            </SelectTrigger>
                            <SelectContent>
                                <SelectItem value="all">Semua Stok</SelectItem>
                                <SelectItem value="empty">Habis</SelectItem>
                                <SelectItem value="low">
                                    Menipis (di bawah 10)
                                </SelectItem>
                            </SelectContent>
                        </Select>
                    </div>

                    <div className="flex flex-col gap-2">
                        <label className="text-xs text-muted-foreground">
                            Kategori
                        </label>
                        <Combobox
                            items={categories}
                            itemToStringLabel={(cat) => cat.name}
                            value={selectedCategory}
                            onValueChange={(value) =>
                                applyFilter(
                                    'category',
                                    value ? String(value.id) : '',
                                )
                            }
                        >
                            <ComboboxInput
                                placeholder="Pilih kategori..."
                                className="w-full"
                            />
                            <ComboboxContent>
                                <ComboboxEmpty>
                                    Tidak ada kategori ditemukan.
                                </ComboboxEmpty>
                                <ComboboxList>
                                    {(cat) => (
                                        <ComboboxItem value={cat}>
                                            {cat.name}
                                        </ComboboxItem>
                                    )}
                                </ComboboxList>
                            </ComboboxContent>
                        </Combobox>
                    </div>
                </div>
            </PopoverContent>
        </Popover>
    );

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

            <div className="flex h-full flex-1 flex-col gap-6 overflow-x-auto p-4 md:p-6">
                <div className="flex items-center justify-between">
                    <div>
                        <h2 className="text-2xl font-semibold tracking-tight">
                            Produk
                        </h2>
                    </div>
                    <Button asChild>
                        <a href={productCreate.url()}>
                            <Plus className="h-4 w-4" />
                            Tambah
                        </a>
                    </Button>
                </div>

                <CardTable
                    data={products.data}
                    getItemKey={(p) => p.id}
                    expandedKeys={expand.expandedKeys}
                    onToggleExpand={expand.toggleExpand}
                    searchValue={search}
                    onSearchChange={handleSearchChange}
                    searchPlaceholder="Cari produk..."
                    pagination={pagination}
                    onPageChange={handlePageChange}
                    onPerPageChange={handlePerPageChange}
                    toolbar={filterToolbar}
                    renderCard={({
                        item,
                        index,
                        isExpanded,
                        onToggleExpand,
                    }) => (
                        <ProductCardRow
                            product={item}
                            index={
                                (pagination.current_page - 1) *
                                    pagination.per_page +
                                index +
                                1
                            }
                            isExpanded={isExpanded}
                            onToggleExpand={onToggleExpand}
                            onEdit={(p) => {
                                window.location.href = productEdit.url(p.id);
                            }}
                            onDelete={(p) => setDeleting(p)}
                            toggleStatusUrl={(id) => toggleStatus.url(id)}
                        />
                    )}
                    renderSubContent={(product) => (
                        <VariantSubRow
                            product={product}
                            onEditVariant={(p, v) => {
                                window.location.href = variantEdit.url({
                                    product: p.id,
                                    variant: v.id,
                                });
                            }}
                            onDeleteVariantClick={(p, v) =>
                                setDeletingVariant({ product: p, variant: v })
                            }
                        />
                    )}
                />

                <ConfirmDialog
                    open={deleting !== null}
                    onOpenChange={(open) => {
                        if (!open) {
                            setDeleting(null);
                        }
                    }}
                    title="Hapus Produk"
                    description={`Apakah Anda yakin ingin menghapus produk "${deleting?.name}"? Tindakan ini tidak dapat dibatalkan.`}
                    confirmLabel="Hapus"
                    onConfirm={handleDelete}
                />

                <ConfirmDialog
                    open={deletingVariant !== null}
                    onOpenChange={(open) => {
                        if (!open) {
                            setDeletingVariant(null);
                        }
                    }}
                    title="Hapus Varian"
                    description={`Apakah Anda yakin ingin menghapus varian "${deletingVariant?.variant.name}" dari produk "${deletingVariant?.product.name}"? Tindakan ini tidak dapat dibatalkan.`}
                    confirmLabel="Hapus"
                    onConfirm={handleDeleteVariant}
                />
            </div>
        </>
    );
}