"use client";

import React, { useState, useEffect } from "react";
import { Input } from "@/components/ui/input";
import { Button } from "@/components/ui/button";
import { Search, X } from "lucide-react";
import { EntitySearchModal } from "./EntitySearchModal";
import { EntitySearchInputProps, EntitySearchResult } from "./types";
import { cn } from "@/lib/utils";

export function EntitySearchInputComponent({
  tableName,
  displayField,
  valueField,
  searchFields = [displayField],
  mode = "combo",
  placeholder = "검색...",
  disabled = false,
  filterCondition = {},
  value,
  onChange,
  modalTitle = "검색",
  modalColumns = [],
  showAdditionalInfo = false,
  additionalFields = [],
  className,
}: EntitySearchInputProps) {
  const [modalOpen, setModalOpen] = useState(false);
  const [displayValue, setDisplayValue] = useState("");
  const [selectedData, setSelectedData] = useState<EntitySearchResult | null>(null);

  // value가 변경되면 표시값 업데이트
  useEffect(() => {
    if (value && selectedData) {
      setDisplayValue(selectedData[displayField] || "");
    } else {
      setDisplayValue("");
      setSelectedData(null);
    }
  }, [value, displayField]);

  const handleSelect = (newValue: any, fullData: EntitySearchResult) => {
    setSelectedData(fullData);
    setDisplayValue(fullData[displayField] || "");
    onChange?.(newValue, fullData);
  };

  const handleClear = () => {
    setDisplayValue("");
    setSelectedData(null);
    onChange?.(null, null);
  };

  const handleOpenModal = () => {
    if (!disabled) {
      setModalOpen(true);
    }
  };

  return (
    <div className={cn("space-y-2", className)}>
      {/* 입력 필드 */}
      <div className="flex gap-2">
        <div className="relative flex-1">
          <Input
            value={displayValue}
            onChange={(e) => setDisplayValue(e.target.value)}
            placeholder={placeholder}
            disabled={disabled}
            readOnly={mode === "modal" || mode === "combo"}
            className="h-8 text-xs sm:h-10 sm:text-sm pr-8"
          />
          {displayValue && !disabled && (
            <Button
              type="button"
              variant="ghost"
              size="sm"
              onClick={handleClear}
              className="absolute right-1 top-1/2 -translate-y-1/2 h-6 w-6 p-0"
            >
              <X className="h-3 w-3" />
            </Button>
          )}
        </div>

        {(mode === "modal" || mode === "combo") && (
          <Button
            type="button"
            onClick={handleOpenModal}
            disabled={disabled}
            className="h-8 text-xs sm:h-10 sm:text-sm"
          >
            <Search className="h-4 w-4" />
          </Button>
        )}
      </div>

      {/* 추가 정보 표시 */}
      {showAdditionalInfo && selectedData && additionalFields.length > 0 && (
        <div className="text-xs text-muted-foreground space-y-1 px-2">
          {additionalFields.map((field) => (
            <div key={field} className="flex gap-2">
              <span className="font-medium">{field}:</span>
              <span>{selectedData[field] || "-"}</span>
            </div>
          ))}
        </div>
      )}

      {/* 검색 모달 */}
      <EntitySearchModal
        open={modalOpen}
        onOpenChange={setModalOpen}
        tableName={tableName}
        displayField={displayField}
        valueField={valueField}
        searchFields={searchFields}
        filterCondition={filterCondition}
        modalTitle={modalTitle}
        modalColumns={modalColumns}
        onSelect={handleSelect}
      />
    </div>
  );
}