"use client";

import React, { useState, useEffect } from "react";
import { Label } from "@/components/ui/label";
import { Input } from "@/components/ui/input";
import { Select, SelectContent, SelectItem, SelectTrigger, SelectValue } from "@/components/ui/select";
import { Command, CommandEmpty, CommandGroup, CommandInput, CommandItem, CommandList } from "@/components/ui/command";
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
import { Switch } from "@/components/ui/switch";
import { Button } from "@/components/ui/button";
import { Plus, X, Check, ChevronsUpDown } from "lucide-react";
import { AutocompleteSearchInputConfig } from "./types";
import { tableManagementApi } from "@/lib/api/tableManagement";
import { cn } from "@/lib/utils";

interface AutocompleteSearchInputConfigPanelProps {
  config: AutocompleteSearchInputConfig;
  onConfigChange: (config: AutocompleteSearchInputConfig) => void;
}

export function AutocompleteSearchInputConfigPanel({
  config,
  onConfigChange,
}: AutocompleteSearchInputConfigPanelProps) {
  const [localConfig, setLocalConfig] = useState(config);
  const [allTables, setAllTables] = useState<any[]>([]);
  const [tableColumns, setTableColumns] = useState<any[]>([]);
  const [isLoadingTables, setIsLoadingTables] = useState(false);
  const [isLoadingColumns, setIsLoadingColumns] = useState(false);
  const [openTableCombo, setOpenTableCombo] = useState(false);
  const [openDisplayFieldCombo, setOpenDisplayFieldCombo] = useState(false);
  const [openValueFieldCombo, setOpenValueFieldCombo] = useState(false);

  // 전체 테이블 목록 로드
  useEffect(() => {
    const loadTables = async () => {
      setIsLoadingTables(true);
      try {
        const response = await tableManagementApi.getTableList();
        if (response.success && response.data) {
          setAllTables(response.data);
        }
      } catch (error) {
        console.error("테이블 목록 로드 실패:", error);
      } finally {
        setIsLoadingTables(false);
      }
    };
    loadTables();
  }, []);

  // 선택된 테이블의 컬럼 목록 로드
  useEffect(() => {
    const loadColumns = async () => {
      if (!localConfig.tableName) {
        setTableColumns([]);
        return;
      }

      setIsLoadingColumns(true);
      try {
        const response = await tableManagementApi.getColumnList(localConfig.tableName);
        if (response.success && response.data) {
          setTableColumns(response.data.columns);
        }
      } catch (error) {
        console.error("컬럼 목록 로드 실패:", error);
        setTableColumns([]);
      } finally {
        setIsLoadingColumns(false);
      }
    };
    loadColumns();
  }, [localConfig.tableName]);

  useEffect(() => {
    setLocalConfig(config);
  }, [config]);

  const updateConfig = (updates: Partial<AutocompleteSearchInputConfig>) => {
    const newConfig = { ...localConfig, ...updates };
    setLocalConfig(newConfig);
    onConfigChange(newConfig);
  };

  const addSearchField = () => {
    const fields = localConfig.searchFields || [];
    updateConfig({ searchFields: [...fields, ""] });
  };

  const updateSearchField = (index: number, value: string) => {
    const fields = [...(localConfig.searchFields || [])];
    fields[index] = value;
    updateConfig({ searchFields: fields });
  };

  const removeSearchField = (index: number) => {
    const fields = [...(localConfig.searchFields || [])];
    fields.splice(index, 1);
    updateConfig({ searchFields: fields });
  };

  const addAdditionalField = () => {
    const fields = localConfig.additionalFields || [];
    updateConfig({ additionalFields: [...fields, ""] });
  };

  const updateAdditionalField = (index: number, value: string) => {
    const fields = [...(localConfig.additionalFields || [])];
    fields[index] = value;
    updateConfig({ additionalFields: fields });
  };

  const removeAdditionalField = (index: number) => {
    const fields = [...(localConfig.additionalFields || [])];
    fields.splice(index, 1);
    updateConfig({ additionalFields: fields });
  };

  return (
    <div className="space-y-4 p-4">
      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">테이블명 *</Label>
        <Popover open={openTableCombo} onOpenChange={setOpenTableCombo}>
          <PopoverTrigger asChild>
            <Button
              variant="outline"
              role="combobox"
              aria-expanded={openTableCombo}
              className="h-8 w-full justify-between text-xs sm:h-10 sm:text-sm"
              disabled={isLoadingTables}
            >
              {localConfig.tableName
                ? allTables.find((t) => t.tableName === localConfig.tableName)?.displayName || localConfig.tableName
                : isLoadingTables ? "로딩 중..." : "테이블 선택"}
              <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
            </Button>
          </PopoverTrigger>
          <PopoverContent className="p-0" style={{ width: "var(--radix-popover-trigger-width)" }} align="start">
            <Command>
              <CommandInput placeholder="테이블 검색..." className="text-xs sm:text-sm" />
              <CommandList>
                <CommandEmpty className="text-xs sm:text-sm">테이블을 찾을 수 없습니다.</CommandEmpty>
                <CommandGroup>
                  {allTables.map((table) => (
                    <CommandItem
                      key={table.tableName}
                      value={table.tableName}
                      onSelect={() => {
                        updateConfig({ tableName: table.tableName });
                        setOpenTableCombo(false);
                      }}
                      className="text-xs sm:text-sm"
                    >
                      <Check className={cn("mr-2 h-4 w-4", localConfig.tableName === table.tableName ? "opacity-100" : "opacity-0")} />
                      <div className="flex flex-col">
                        <span className="font-medium">{table.displayName || table.tableName}</span>
                        {table.displayName && <span className="text-[10px] text-gray-500">{table.tableName}</span>}
                      </div>
                    </CommandItem>
                  ))}
                </CommandGroup>
              </CommandList>
            </Command>
          </PopoverContent>
        </Popover>
      </div>

      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">표시 필드 *</Label>
        <Popover open={openDisplayFieldCombo} onOpenChange={setOpenDisplayFieldCombo}>
          <PopoverTrigger asChild>
            <Button
              variant="outline"
              role="combobox"
              aria-expanded={openDisplayFieldCombo}
              className="h-8 w-full justify-between text-xs sm:h-10 sm:text-sm"
              disabled={!localConfig.tableName || isLoadingColumns}
            >
              {localConfig.displayField
                ? tableColumns.find((c) => c.columnName === localConfig.displayField)?.displayName || localConfig.displayField
                : isLoadingColumns ? "로딩 중..." : "필드 선택"}
              <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
            </Button>
          </PopoverTrigger>
          <PopoverContent className="p-0" style={{ width: "var(--radix-popover-trigger-width)" }} align="start">
            <Command>
              <CommandInput placeholder="필드 검색..." className="text-xs sm:text-sm" />
              <CommandList>
                <CommandEmpty className="text-xs sm:text-sm">필드를 찾을 수 없습니다.</CommandEmpty>
                <CommandGroup>
                  {tableColumns.map((column) => (
                    <CommandItem
                      key={column.columnName}
                      value={column.columnName}
                      onSelect={() => {
                        updateConfig({ displayField: column.columnName });
                        setOpenDisplayFieldCombo(false);
                      }}
                      className="text-xs sm:text-sm"
                    >
                      <Check className={cn("mr-2 h-4 w-4", localConfig.displayField === column.columnName ? "opacity-100" : "opacity-0")} />
                      <div className="flex flex-col">
                        <span className="font-medium">{column.displayName || column.columnName}</span>
                        {column.displayName && <span className="text-[10px] text-gray-500">{column.columnName}</span>}
                      </div>
                    </CommandItem>
                  ))}
                </CommandGroup>
              </CommandList>
            </Command>
          </PopoverContent>
        </Popover>
      </div>

      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">값 필드 *</Label>
        <Popover open={openValueFieldCombo} onOpenChange={setOpenValueFieldCombo}>
          <PopoverTrigger asChild>
            <Button
              variant="outline"
              role="combobox"
              aria-expanded={openValueFieldCombo}
              className="h-8 w-full justify-between text-xs sm:h-10 sm:text-sm"
              disabled={!localConfig.tableName || isLoadingColumns}
            >
              {localConfig.valueField
                ? tableColumns.find((c) => c.columnName === localConfig.valueField)?.displayName || localConfig.valueField
                : isLoadingColumns ? "로딩 중..." : "필드 선택"}
              <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
            </Button>
          </PopoverTrigger>
          <PopoverContent className="p-0" style={{ width: "var(--radix-popover-trigger-width)" }} align="start">
            <Command>
              <CommandInput placeholder="필드 검색..." className="text-xs sm:text-sm" />
              <CommandList>
                <CommandEmpty className="text-xs sm:text-sm">필드를 찾을 수 없습니다.</CommandEmpty>
                <CommandGroup>
                  {tableColumns.map((column) => (
                    <CommandItem
                      key={column.columnName}
                      value={column.columnName}
                      onSelect={() => {
                        updateConfig({ valueField: column.columnName });
                        setOpenValueFieldCombo(false);
                      }}
                      className="text-xs sm:text-sm"
                    >
                      <Check className={cn("mr-2 h-4 w-4", localConfig.valueField === column.columnName ? "opacity-100" : "opacity-0")} />
                      <div className="flex flex-col">
                        <span className="font-medium">{column.displayName || column.columnName}</span>
                        {column.displayName && <span className="text-[10px] text-gray-500">{column.columnName}</span>}
                      </div>
                    </CommandItem>
                  ))}
                </CommandGroup>
              </CommandList>
            </Command>
          </PopoverContent>
        </Popover>
      </div>

      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">플레이스홀더</Label>
        <Input
          value={localConfig.placeholder || ""}
          onChange={(e) => updateConfig({ placeholder: e.target.value })}
          placeholder="검색..."
          className="h-8 text-xs sm:h-10 sm:text-sm"
        />
      </div>

      <div className="space-y-2">
        <div className="flex items-center justify-between">
          <Label className="text-xs sm:text-sm">검색 필드</Label>
          <Button
            size="sm"
            variant="outline"
            onClick={addSearchField}
            className="h-7 text-xs"
            disabled={!localConfig.tableName || isLoadingColumns}
          >
            <Plus className="h-3 w-3 mr-1" />
            추가
          </Button>
        </div>
        <div className="space-y-2">
          {(localConfig.searchFields || []).map((field, index) => (
            <div key={index} className="flex items-center gap-2">
              <Select
                value={field}
                onValueChange={(value) => updateSearchField(index, value)}
                disabled={!localConfig.tableName || isLoadingColumns}
              >
                <SelectTrigger className="h-8 text-xs sm:h-10 sm:text-sm flex-1">
                  <SelectValue placeholder="필드 선택" />
                </SelectTrigger>
                <SelectContent>
                  {tableColumns.map((col) => (
                    <SelectItem key={col.columnName} value={col.columnName}>
                      {col.displayName || col.columnName}
                    </SelectItem>
                  ))}
                </SelectContent>
              </Select>
              <Button
                size="sm"
                variant="ghost"
                onClick={() => removeSearchField(index)}
                className="h-8 w-8 p-0"
              >
                <X className="h-4 w-4" />
              </Button>
            </div>
          ))}
        </div>
      </div>

      <div className="space-y-2">
        <div className="flex items-center justify-between">
          <Label className="text-xs sm:text-sm">추가 정보 표시</Label>
          <Switch
            checked={localConfig.showAdditionalInfo || false}
            onCheckedChange={(checked) =>
              updateConfig({ showAdditionalInfo: checked })
            }
          />
        </div>
      </div>

      {localConfig.showAdditionalInfo && (
        <div className="space-y-2">
          <div className="flex items-center justify-between">
            <Label className="text-xs sm:text-sm">추가 필드</Label>
            <Button
              size="sm"
              variant="outline"
              onClick={addAdditionalField}
              className="h-7 text-xs"
              disabled={!localConfig.tableName || isLoadingColumns}
            >
              <Plus className="h-3 w-3 mr-1" />
              추가
            </Button>
          </div>
          <div className="space-y-2">
            {(localConfig.additionalFields || []).map((field, index) => (
              <div key={index} className="flex items-center gap-2">
                <Select
                  value={field}
                  onValueChange={(value) => updateAdditionalField(index, value)}
                  disabled={!localConfig.tableName || isLoadingColumns}
                >
                  <SelectTrigger className="h-8 text-xs sm:h-10 sm:text-sm flex-1">
                    <SelectValue placeholder="필드 선택" />
                  </SelectTrigger>
                  <SelectContent>
                    {tableColumns.map((col) => (
                      <SelectItem key={col.columnName} value={col.columnName}>
                        {col.displayName || col.columnName}
                      </SelectItem>
                    ))}
                  </SelectContent>
                </Select>
                <Button
                  size="sm"
                  variant="ghost"
                  onClick={() => removeAdditionalField(index)}
                  className="h-8 w-8 p-0"
                >
                  <X className="h-4 w-4" />
                </Button>
              </div>
            ))}
          </div>
        </div>
      )}
    </div>
  );
}