import { Dialog, Transition } from "@headlessui/react";
import { XMarkIcon } from "@heroicons/react/24/outline";
import { DatePicker } from "@mui/x-date-pickers";
import { AdapterDateFns } from "@mui/x-date-pickers/AdapterDateFns";
import { LocalizationProvider } from "@mui/x-date-pickers/LocalizationProvider";
import { StatusPagamento } from "@prisma/client";
import ptBR from "date-fns/locale/pt-BR";
import { Fragment, useState } from "react";

import { formatCurrency } from "../../../utils/format";

interface ParcelaHonorario {
  id: string;
  honorarioId: string;
  numeroParcela: number;
  valor: number;
  valorPago?: number | null;
  vencimento: Date;
  dataPagamento?: Date | null;
  status: StatusPagamento;
  comprovante?: string | null;
  observacoes?: string | null;
}

interface DialogParcelaProps {
  isOpen: boolean;
  onClose: () => void;
  onSave: (data: any) => Promise<void>;
  parcela: ParcelaHonorario;
  tipo: "honorario" | "custa";
}

export function DialogParcela({
  isOpen,
  onClose,
  onSave,
  parcela,
  tipo,
}: DialogParcelaProps) {
  const [formData, setFormData] = useState({
    status: parcela?.status || "PENDENTE",
    dataPagamento: parcela?.dataPagamento
      ? new Date(parcela?.dataPagamento)
      : null,
    valorPago: parcela?.valorPago || "",
    comprovante: parcela?.comprovante || "",
    observacoes: parcela?.observacoes || "",
  });

  const handleValorPagoChange = (valor: string) => {
    const valorPago = Number(valor);
    const valorParcela = Number(parcela.valor);

    let novoStatus = "PENDENTE";
    if (valorPago >= valorParcela) {
      novoStatus = "PAGO";
    } else if (valorPago > 0) {
      novoStatus = "PARCIALMENTE_PAGO";
    }

    setFormData((prev) => ({
      ...prev,
      valorPago: valor,
      status: novoStatus,
      dataPagamento: novoStatus === "PAGO" ? new Date() : prev.dataPagamento,
    }));
  };

  const handleSubmit = async (e: React.FormEvent) => {
    e.preventDefault();
    await onSave(formData);
    onClose();
  };

  return (
    <Transition appear show={isOpen} as={Fragment}>
      <Dialog as="div" className="relative z-50" onClose={onClose}>
        <div className="fixed inset-0 bg-black/30 backdrop-blur-sm" />

        <div className="fixed inset-0 overflow-y-auto">
          <div className="flex min-h-full items-center justify-center p-4">
            <Dialog.Panel className="w-full max-w-md transform overflow-hidden rounded-2xl bg-white p-6 text-left align-middle shadow-xl transition-all">
              <Dialog.Title
                as="div"
                className="flex items-center justify-between mb-4"
              >
                <h3 className="text-lg font-medium leading-6 text-gray-900">
                  Atualizar Parcela {parcela?.numeroParcela}
                </h3>
                <button
                  type="button"
                  className="text-gray-400 hover:text-gray-500"
                  onClick={onClose}
                >
                  <XMarkIcon className="h-6 w-6" />
                </button>
              </Dialog.Title>

              <form onSubmit={handleSubmit} className="space-y-4">
                <div>
                  <label className="block text-sm font-medium text-gray-700">
                    Valor da Parcela
                  </label>
                  <input
                    type="text"
                    value={formatCurrency(parcela.valor)}
                    disabled
                    className="mt-1 block w-full rounded-md border-gray-300 bg-gray-50"
                  />
                </div>

                <div>
                  <label className="block text-sm font-medium text-gray-700">
                    Valor Pago
                  </label>
                  <input
                    type="number"
                    step="0.01"
                    value={formData.valorPago}
                    onChange={(e) => handleValorPagoChange(e.target.value)}
                    className="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500"
                  />
                </div>

                <div>
                  <label className="block text-sm font-medium text-gray-700">
                    Status
                  </label>
                  <select
                    value={formData.status}
                    onChange={(e) =>
                      setFormData({ ...formData, status: e.target.value })
                    }
                    className="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500"
                  >
                    {Object.values(StatusPagamento).map((status) => (
                      <option key={status} value={status}>
                        {status.replace(/_/g, " ")}
                      </option>
                    ))}
                  </select>
                </div>

                {formData.status === "PAGO" && (
                  <div>
                    <label className="block text-sm font-medium text-gray-700">
                      Data do Pagamento
                    </label>
                    <LocalizationProvider
                      dateAdapter={AdapterDateFns}
                      adapterLocale={ptBR}
                    >
                      <DatePicker
                        value={formData.dataPagamento}
                        onChange={(date) =>
                          setFormData({ ...formData, dataPagamento: date })
                        }
                        className="mt-1 block w-full"
                      />
                    </LocalizationProvider>
                  </div>
                )}

                <div>
                  <label className="block text-sm font-medium text-gray-700">
                    Comprovante (URL)
                  </label>
                  <input
                    type="text"
                    value={formData.comprovante}
                    onChange={(e) =>
                      setFormData({ ...formData, comprovante: e.target.value })
                    }
                    className="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500"
                  />
                </div>

                <div>
                  <label className="block text-sm font-medium text-gray-700">
                    Observações
                  </label>
                  <textarea
                    value={formData.observacoes}
                    onChange={(e) =>
                      setFormData({ ...formData, observacoes: e.target.value })
                    }
                    rows={3}
                    className="mt-1 block w-full rounded-md border-gray-300 shadow-sm focus:border-blue-500 focus:ring-blue-500"
                  />
                </div>

                <div className="mt-6 flex justify-end space-x-3">
                  <button
                    type="button"
                    onClick={onClose}
                    className="px-4 py-2 text-sm font-medium text-gray-700 hover:bg-gray-50 focus:outline-none focus:ring-2 focus:ring-gray-500 focus:ring-offset-2"
                  >
                    Cancelar
                  </button>
                  <button
                    type="submit"
                    className="inline-flex justify-center rounded-md border border-transparent bg-blue-600 px-4 py-2 text-sm font-medium text-white hover:bg-blue-700 focus:outline-none focus:ring-2 focus:ring-blue-500 focus:ring-offset-2"
                  >
                    Salvar
                  </button>
                </div>
              </form>
            </Dialog.Panel>
          </div>
        </div>
      </Dialog>
    </Transition>
  );
}