"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 { Button } from "@/components/ui/button";
import { Switch } from "@/components/ui/switch";
import { Plus, X, Check, ChevronsUpDown } from "lucide-react";
import { ModalRepeaterTableProps } from "./types";
import { tableManagementApi } from "@/lib/api/tableManagement";
import { cn } from "@/lib/utils";

interface ModalRepeaterTableConfigPanelProps {
  config: Partial<ModalRepeaterTableProps>;
  onConfigChange: (config: Partial<ModalRepeaterTableProps>) => void;
}

export function ModalRepeaterTableConfigPanel({
  config,
  onConfigChange,
}: ModalRepeaterTableConfigPanelProps) {
  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 [openUniqueFieldCombo, setOpenUniqueFieldCombo] = 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.sourceTable) {
        setTableColumns([]);
        return;
      }

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

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

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

  const addSourceColumn = () => {
    const columns = localConfig.sourceColumns || [];
    updateConfig({ sourceColumns: [...columns, ""] });
  };

  const updateSourceColumn = (index: number, value: string) => {
    const columns = [...(localConfig.sourceColumns || [])];
    columns[index] = value;
    updateConfig({ sourceColumns: columns });
  };

  const removeSourceColumn = (index: number) => {
    const columns = [...(localConfig.sourceColumns || [])];
    columns.splice(index, 1);
    updateConfig({ sourceColumns: columns });
  };

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

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

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

  return (
    <div className="space-y-4 p-4">
      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">소스 테이블 *</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.sourceTable
                ? allTables.find((t) => t.tableName === localConfig.sourceTable)?.displayName || localConfig.sourceTable
                : 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({ sourceTable: table.tableName });
                        setOpenTableCombo(false);
                      }}
                      className="text-xs sm:text-sm"
                    >
                      <Check className={cn("mr-2 h-4 w-4", localConfig.sourceTable === 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">모달 제목</Label>
        <Input
          value={localConfig.modalTitle || ""}
          onChange={(e) => updateConfig({ modalTitle: e.target.value })}
          placeholder="항목 검색 및 선택"
          className="h-8 text-xs sm:h-10 sm:text-sm"
        />
      </div>

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

      <div className="space-y-2">
        <Label className="text-xs sm:text-sm">중복 체크 필드</Label>
        <Popover open={openUniqueFieldCombo} onOpenChange={setOpenUniqueFieldCombo}>
          <PopoverTrigger asChild>
            <Button
              variant="outline"
              role="combobox"
              aria-expanded={openUniqueFieldCombo}
              className="h-8 w-full justify-between text-xs sm:h-10 sm:text-sm"
              disabled={!localConfig.sourceTable || isLoadingColumns}
            >
              {localConfig.uniqueField
                ? tableColumns.find((c) => c.columnName === localConfig.uniqueField)?.displayName || localConfig.uniqueField
                : 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({ uniqueField: column.columnName });
                        setOpenUniqueFieldCombo(false);
                      }}
                      className="text-xs sm:text-sm"
                    >
                      <Check className={cn("mr-2 h-4 w-4", localConfig.uniqueField === 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">
        <div className="flex items-center justify-between">
          <Label className="text-xs sm:text-sm">다중 선택</Label>
          <Switch
            checked={localConfig.multiSelect ?? true}
            onCheckedChange={(checked) =>
              updateConfig({ multiSelect: checked })
            }
          />
        </div>
      </div>

      <div className="space-y-2">
        <div className="flex items-center justify-between">
          <Label className="text-xs sm:text-sm">소스 컬럼</Label>
          <Button
            size="sm"
            variant="outline"
            onClick={addSourceColumn}
            className="h-7 text-xs"
            disabled={!localConfig.sourceTable || isLoadingColumns}
          >
            <Plus className="h-3 w-3 mr-1" />
            추가
          </Button>
        </div>
        <div className="space-y-2">
          {(localConfig.sourceColumns || []).map((column, index) => (
            <div key={index} className="flex items-center gap-2">
              <Select
                value={column}
                onValueChange={(value) => updateSourceColumn(index, value)}
                disabled={!localConfig.sourceTable || isLoadingColumns}
              >
                <SelectTrigger className="h-8 text-xs sm:h-10 sm:text-sm flex-1">
                  <SelectValue placeholder="컬럼 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={() => removeSourceColumn(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">검색 필드</Label>
          <Button
            size="sm"
            variant="outline"
            onClick={addSearchField}
            className="h-7 text-xs"
            disabled={!localConfig.sourceTable || isLoadingColumns}
          >
            <Plus className="h-3 w-3 mr-1" />
            추가
          </Button>
        </div>
        <div className="space-y-2">
          {(localConfig.sourceSearchFields || []).map((field, index) => (
            <div key={index} className="flex items-center gap-2">
              <Select
                value={field}
                onValueChange={(value) => updateSearchField(index, value)}
                disabled={!localConfig.sourceTable || 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="p-4 bg-muted rounded-md text-xs text-muted-foreground">
        <p className="font-medium mb-2">💡 참고사항:</p>
        <ul className="space-y-1 list-disc list-inside">
          <li>컬럼 설정은 별도 설정 패널에서 관리</li>
          <li>계산 규칙도 별도 설정 패널에서 관리</li>
          <li>여기서는 기본 설정만 구성</li>
        </ul>
      </div>
    </div>
  );
}