import { LookupDialog } from "@repo/rdx-ui/components";
import DataTable, { TableColumn } from "react-data-table-component";
import { useDebounce } from "use-debounce";

import { buildTextFilters } from "@erp/core/client";
import {
  Badge,
  Button,
  Card,
  CardContent,
  Dialog,
  DialogContent,
  DialogFooter,
  DialogHeader,
  DialogTitle,
  Label,
  TableCell,
} from "@repo/shadcn-ui/components";
import { Building, Calendar, Mail, MapPin, Phone, Plus, User } from "lucide-react";
import { useState } from "react";
import { ListCustomersResponseDTO } from "../../common";
import { useCustomersQuery } from "../hooks";

type Customer = ListCustomersResponseDTO["items"][number];

const columns: TableColumn<Customer>[] = [
  {
    name: "Nombre",
    selector: (row) => row.name,
    sortable: true,
  },
  {
    name: "Email",
    selector: (row) => row.email,
    sortable: true,
  },
  {
    name: "Empresa",
    selector: (row) => row.trade_name ?? row.metadata?.company_name ?? "-",
    sortable: false,
  },
  {
    name: "Estado",
    selector: (row) => row.status,
    sortable: false,
  },
];

const mockCustomers: Customer[] = [
  {
    id: "a1d2e3f4-5678-90ab-cdef-1234567890ab",
    name: "Juan Pérez",
    email: "juan@email.com",
    phone: "+34 600 123 456",
    company: "Tech Corp",
    address: "Calle Mayor 123, Madrid",
    createdAt: "2024-01-15",
    status: "Activo",
  },
  {
    id: "b1d2e3f4-5678-90ab-cdef-1234567890ab",
    name: "María García",
    email: "maria@email.com",
    phone: "+34 600 789 012",
    company: "Design Studio",
    address: "Av. Diagonal 456, Barcelona",
    createdAt: "2024-02-20",
    status: "Activo",
  },
  {
    id: "c1d2e3f4-5678-90ab-cdef-1234567890ab",
    name: "Carlos López",
    email: "carlos@email.com",
    phone: "+34 600 345 678",
    company: "Marketing Plus",
    address: "Gran Vía 789, Valencia",
    createdAt: "2024-01-30",
    status: "Inactivo",
  },
  {
    id: "d1d2e3f4-5678-90ab-cdef-1234567890ab",
    name: "Ana Martínez",
    email: "ana@email.com",
    phone: "+34 600 901 234",
    company: "Consulting Group",
    address: "Calle Sierpes 321, Sevilla",
    createdAt: "2024-03-10",
    status: "Activo",
  },
];

async function fetchClientes(search: string): Promise<Customer[]> {
  await new Promise((res) => setTimeout(res, 500));
  const mock: Customer[] = [
    {
      id: "a1",
      name: "Juan Pérez",
      email: "juan@email.com",
      phone: "+34 600 123 456",
      company: "Tech Corp",
      address: "Madrid",
      createdAt: "2024-01-15",
      status: "Activo",
    },
    {
      id: "b1",
      name: "María García",
      email: "maria@email.com",
      phone: "+34 600 789 012",
      company: "Design Studio",
      address: "Barcelona",
      createdAt: "2024-02-20",
      status: "Activo",
    },
  ];
  return mock.filter(
    (c) =>
      c.name.toLowerCase().includes(search.toLowerCase()) ||
      c.email.toLowerCase().includes(search.toLowerCase()) ||
      c.company.toLowerCase().includes(search.toLowerCase())
  );
}

export const ClientSelector = () => {
  const [isCreateOpen, setIsCreateOpen] = useState(false);
  const [open, setOpen] = useState(false);
  const [search, setSearch] = useState("");
  const [pageNumber, setPageNumber] = useState(1);
  const [pageSize] = useState(10);
  const [selectedCustomer, setSelectedCustomer] = useState<Customer | undefined>(undefined);

  const [debouncedSearch] = useDebounce(search, 400);

  const { data, isLoading, isError, refetch } = useCustomersQuery({
    filters: buildTextFilters(["name", "email", "trade_name"], debouncedSearch),
    pageSize,
    pageNumber,
  });

  const handleSelectClient = (event): void => {
    event.preventDefault();
    setOpen(true);
  };

  return (
    <div className='space-y-4 max-w-2xl'>
      <div className='space-y-1'>
        <Label>Cliente</Label>
        <Button variant='outline' className='w-full justify-start' onClick={handleSelectClient}>
          <User className='h-4 w-4 mr-2' />
          {selectedCustomer ? selectedCustomer.name : "Seleccionar cliente"}
        </Button>
      </div>

      {selectedCustomer && (
        <Card>
          <CardContent className='p-4 space-y-2'>
            <div className='flex items-center justify-between'>
              <div className='flex items-center gap-2'>
                <User className='h-6 w-6 text-primary' />
                <h3 className='font-semibold'>{selectedCustomer.name}</h3>
                <Badge
                  variant={selectedCustomer.status === "Activo" ? "default" : "secondary"}
                  className='text-xs'
                >
                  {selectedCustomer.status}
                </Badge>
              </div>
              <span className='text-sm text-muted-foreground'>{selectedCustomer.company}</span>
            </div>
            <p className='text-sm text-muted-foreground'>{selectedCustomer.email}</p>
          </CardContent>
        </Card>
      )}

      <LookupDialog
        open={open}
        onOpenChange={setOpen}
        items={data?.items ?? []}
        totalItems={data?.total_items ?? 0}
        search={search}
        onSearchChange={setSearch}
        isLoading={isLoading}
        isError={isError}
        refetch={refetch}
        title='Seleccionar cliente'
        description='Busca un cliente por nombre, email o empresa'
        onSelect={(customer) => {
          setSelectedCustomer(customer);
          setOpen(false);
        }}
        onCreate={(e) => {
          e.preventDefault();
          setOpen(true);
          console.log("Crear nuevo cliente");
        }}
        page={pageNumber}
        perPage={pageSize}
        onPageChange={setPageNumber}
        renderItem={() => null} // No se usa con DataTable
        renderContainer={(items) => (
          <DataTable
            columns={columns}
            data={items}
            onRowClicked={(item) => {
              setSelectedCustomer(item);
              setOpen(false);
            }}
            pagination
            paginationServer
            paginationPerPage={pageSize}
            paginationTotalRows={data?.total_items ?? 0}
            onChangePage={(p) => setPageNumber(p)}
            highlightOnHover
            pointerOnHover
            noDataComponent='No se encontraron resultados'
          />
        )}
      />

      <Dialog open={isCreateOpen} onOpenChange={setIsCreateOpen}>
        <DialogContent className='max-w-md'>
          <DialogHeader>
            <DialogTitle className='flex items-center gap-2'>
              <Plus className='h-5 w-5' />
              Nuevo Cliente
            </DialogTitle>
          </DialogHeader>
          <p className='text-muted-foreground text-sm mb-4'>Formulario de creación pendiente…</p>
          <DialogFooter>
            <Button variant='outline' onClick={() => setIsCreateOpen(false)}>
              Cancelar
            </Button>
            <Button>
              <Plus className='h-4 w-4 mr-2' />
              Crear
            </Button>
          </DialogFooter>
        </DialogContent>
      </Dialog>
    </div>
  );
};

// COMPONENTES VISUALES

const CustomerCard = ({ customer }: { customer: Customer }) => (
  <Card>
    <CardContent className='p-4 space-y-2'>
      <div className='flex items-center gap-2'>
        <User className='h-5 w-5' />
        <span className='font-semibold'>{customer.name}</span>
        <Badge variant={customer.status === "Activo" ? "default" : "secondary"}>
          {customer.status}
        </Badge>
      </div>
      <div className='text-sm text-muted-foreground flex flex-col gap-1'>
        <div className='flex items-center gap-1'>
          <Mail className='h-4 w-4' />
          {customer.email}
        </div>
        <div className='flex items-center gap-1'>
          <Building className='h-4 w-4' />
          {customer.company}
        </div>
        <div className='flex items-center gap-1'>
          <Phone className='h-4 w-4' />
          {customer.phone}
        </div>
        <div className='flex items-center gap-1'>
          <MapPin className='h-4 w-4' />
          {customer.address}
        </div>
        <div className='flex items-center gap-1'>
          <Calendar className='h-4 w-4' />
          {new Date(customer.createdAt).toLocaleDateString("es-ES")}
        </div>
      </div>
    </CardContent>
  </Card>
);

const CustomerRow = ({ customer }: { customer: Customer }) => (
  <>
    <TableCell>{customer.name}</TableCell>
    <TableCell>{customer.email}</TableCell>
    <TableCell>{customer.company}</TableCell>
    <TableCell>
      <Badge variant={customer.status === "Activo" ? "default" : "secondary"}>
        {customer.status}
      </Badge>
    </TableCell>
  </>
);