"use client";

/**
 * Search 메타 컴포넌트 렌더러
 * - config.fields 배열로 검색 필드들을 가로로 배치
 * - "검색" 버튼 클릭 시 v2EventBus로 TABLE_REFRESH + 필터 전달
 * - "초기화" 버튼으로 모든 필터 클리어
 * - 디자인 모드: 비활성 상태로 표시
 */

import React, { useState } from "react";
import { cn } from "@/lib/utils";
import { Button } from "@/components/ui/button";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import {
  Select,
  SelectContent,
  SelectItem,
  SelectTrigger,
  SelectValue,
} from "@/components/ui/select";
import { Search, X } from "lucide-react";
import { v2EventBus } from "@/lib/v2-core/events/EventBus";
import { V2_EVENTS } from "@/lib/v2-core/events/types";

interface SearchField {
  columnName: string;
  label: string;
  searchType?: "text" | "select" | "date";
  options?: { value: string; label: string }[];
}

interface SearchRendererProps {
  id: string;
  config: {
    fields: SearchField[];
    targetTableId?: string; // 연결된 DataView ID (옵션)
    targetTableName?: string; // 🔍 대상 테이블명 (필터 식별용)
  };
  isDesignMode?: boolean;
  disabled?: boolean;
  className?: string;
}

export function SearchRenderer({
  id,
  config,
  isDesignMode = false,
  disabled = false,
  className,
}: SearchRendererProps) {
  const { fields = [] } = config;
  const [filters, setFilters] = useState<Record<string, any>>({});

  // 검색 실행
  const handleSearch = () => {
    if (isDesignMode || disabled) return;

    // 🔍 v2EventBus로 TABLE_REFRESH 이벤트 발행
    v2EventBus.emitSync(V2_EVENTS.TABLE_REFRESH, {
      filters,
      sourceId: id,
      targetId: config.targetTableId,
      tableName: config.targetTableName, // 대상 테이블명 전달
    });
  };

  // 필터 초기화
  const handleReset = () => {
    if (isDesignMode || disabled) return;

    setFilters({});
    // 🔍 빈 필터로 새로고침
    v2EventBus.emitSync(V2_EVENTS.TABLE_REFRESH, {
      filters: {},
      sourceId: id,
      targetId: config.targetTableId,
      tableName: config.targetTableName, // 대상 테이블명 전달
    });
  };

  // 필드 값 변경
  const handleFieldChange = (columnName: string, value: any) => {
    setFilters((prev) => ({ ...prev, [columnName]: value }));
  };

  // Enter 키 처리
  const handleKeyDown = (e: React.KeyboardEvent) => {
    if (e.key === "Enter") {
      handleSearch();
    }
  };

  if (fields.length === 0) {
    return (
      <div
        className={cn(
          "flex items-center justify-center rounded-md border border-dashed p-4 text-sm text-muted-foreground",
          className
        )}
      >
        검색 필드를 추가하세요
      </div>
    );
  }

  return (
    <div className={cn("flex flex-wrap items-end gap-2", className)}>
      {fields.map((field) => (
        <div key={field.columnName} className="flex flex-col gap-1">
          <Label className="text-xs sm:text-sm">{field.label}</Label>
          
          {field.searchType === "select" && field.options ? (
            <Select
              value={filters[field.columnName] || ""}
              onValueChange={(value) => handleFieldChange(field.columnName, value)}
              disabled={isDesignMode || disabled}
            >
              <SelectTrigger className="h-8 w-32 sm:h-10 sm:w-40">
                <SelectValue placeholder="선택" />
              </SelectTrigger>
              <SelectContent>
                {field.options.map((opt) => (
                  <SelectItem key={opt.value} value={opt.value}>
                    {opt.label}
                  </SelectItem>
                ))}
              </SelectContent>
            </Select>
          ) : (
            <Input
              type={field.searchType === "date" ? "date" : "text"}
              placeholder={field.label}
              value={filters[field.columnName] || ""}
              onChange={(e) => handleFieldChange(field.columnName, e.target.value)}
              onKeyDown={handleKeyDown}
              disabled={isDesignMode || disabled}
              className="h-8 w-32 sm:h-10 sm:w-40"
            />
          )}
        </div>
      ))}

      {/* 검색 버튼 */}
      <Button
        onClick={handleSearch}
        disabled={isDesignMode || disabled}
        size="default"
        className="h-8 sm:h-10"
      >
        <Search className="mr-2 h-4 w-4" />
        검색
      </Button>

      {/* 초기화 버튼 */}
      <Button
        onClick={handleReset}
        disabled={isDesignMode || disabled}
        variant="outline"
        size="default"
        className="h-8 sm:h-10"
      >
        <X className="mr-2 h-4 w-4" />
        초기화
      </Button>

      {/* 디자인 모드 표시 */}
      {isDesignMode && (
        <span className="ml-2 text-xs text-muted-foreground">
          (디자인 모드: 비활성)
        </span>
      )}
    </div>
  );
}