"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 { Switch } from "@/components/ui/switch";
import { Popover, PopoverContent, PopoverTrigger } from "@/components/ui/popover";
import { Button } from "@/components/ui/button";
import { Check, ChevronsUpDown, Search } from "lucide-react";
import { cn } from "@/lib/utils";
import { ComponentData } from "@/types/screen";
import { apiClient } from "@/lib/api/client";
import { ButtonDataflowConfigPanel } from "./ButtonDataflowConfigPanel";

interface ButtonConfigPanelProps {
  component: ComponentData;
  onUpdateProperty: (path: string, value: any) => void;
}

interface ScreenOption {
  id: number;
  name: string;
  description?: string;
}

export const ButtonConfigPanel: React.FC<ButtonConfigPanelProps> = ({ component, onUpdateProperty }) => {
  const config = component.componentConfig || {};
  const [screens, setScreens] = useState<ScreenOption[]>([]);
  const [screensLoading, setScreensLoading] = useState(false);
  const [modalScreenOpen, setModalScreenOpen] = useState(false);
  const [navScreenOpen, setNavScreenOpen] = useState(false);
  const [modalSearchTerm, setModalSearchTerm] = useState("");
  const [navSearchTerm, setNavSearchTerm] = useState("");

  // 화면 목록 가져오기
  useEffect(() => {
    const fetchScreens = async () => {
      try {
        setScreensLoading(true);
        console.log("🔍 화면 목록 API 호출 시작");
        const response = await apiClient.get("/screen-management/screens");
        console.log("✅ 화면 목록 API 응답:", response.data);

        if (response.data.success && Array.isArray(response.data.data)) {
          const screenList = response.data.data.map((screen: any) => ({
            id: screen.screenId,
            name: screen.screenName,
            description: screen.description,
          }));
          setScreens(screenList);
          console.log("✅ 화면 목록 설정 완료:", screenList.length, "개");
        }
      } catch (error) {
        console.error("❌ 화면 목록 로딩 실패:", error);
      } finally {
        setScreensLoading(false);
      }
    };

    fetchScreens();
  }, []);

  // 검색 필터링 함수
  const filterScreens = (searchTerm: string) => {
    if (!searchTerm.trim()) return screens;
    return screens.filter(
      (screen) =>
        screen.name.toLowerCase().includes(searchTerm.toLowerCase()) ||
        (screen.description && screen.description.toLowerCase().includes(searchTerm.toLowerCase())),
    );
  };

  console.log("🔧 config-panels/ButtonConfigPanel 렌더링:", {
    component,
    config,
    action: config.action,
    actionType: config.action?.type,
    screensCount: screens.length,
  });

  return (
    <div className="space-y-4">
      <div>
        <Label htmlFor="button-text">버튼 텍스트</Label>
        <Input
          id="button-text"
          value={config.text || "버튼"}
          onChange={(e) => onUpdateProperty("componentConfig.text", e.target.value)}
          placeholder="버튼 텍스트를 입력하세요"
        />
      </div>

      <div>
        <Label htmlFor="button-variant">버튼 스타일</Label>
        <Select
          value={config.variant || "default"}
          onValueChange={(value) => onUpdateProperty("componentConfig.variant", value)}
        >
          <SelectTrigger>
            <SelectValue placeholder="버튼 스타일 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="primary">기본 (Primary)</SelectItem>
            <SelectItem value="secondary">보조 (Secondary)</SelectItem>
            <SelectItem value="danger">위험 (Danger)</SelectItem>
            <SelectItem value="success">성공 (Success)</SelectItem>
            <SelectItem value="outline">외곽선 (Outline)</SelectItem>
            <SelectItem value="ghost">고스트 (Ghost)</SelectItem>
            <SelectItem value="link">링크 (Link)</SelectItem>
          </SelectContent>
        </Select>
      </div>

      <div>
        <Label htmlFor="button-size">버튼 크기</Label>
        <Select
          value={config.size || "default"}
          onValueChange={(value) => onUpdateProperty("componentConfig.size", value)}
        >
          <SelectTrigger>
            <SelectValue placeholder="버튼 크기 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="small">작음 (Small)</SelectItem>
            <SelectItem value="default">기본 (Default)</SelectItem>
            <SelectItem value="large">큼 (Large)</SelectItem>
          </SelectContent>
        </Select>
      </div>

      <div>
        <Label htmlFor="button-action">버튼 액션</Label>
        <Select
          value={config.action?.type || "save"}
          defaultValue="save"
          onValueChange={(value) => onUpdateProperty("componentConfig.action", { type: value })}
        >
          <SelectTrigger>
            <SelectValue placeholder="버튼 액션 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="save">저장</SelectItem>
            <SelectItem value="cancel">취소</SelectItem>
            <SelectItem value="delete">삭제</SelectItem>
            <SelectItem value="edit">수정</SelectItem>
            <SelectItem value="add">추가</SelectItem>
            <SelectItem value="search">검색</SelectItem>
            <SelectItem value="reset">초기화</SelectItem>
            <SelectItem value="submit">제출</SelectItem>
            <SelectItem value="close">닫기</SelectItem>
            <SelectItem value="modal">모달 열기</SelectItem>
            <SelectItem value="navigate">페이지 이동</SelectItem>
          </SelectContent>
        </Select>
      </div>

      {/* 모달 열기 액션 설정 */}
      {config.action?.type === "modal" && (
        <div className="mt-4 space-y-4 rounded-lg border bg-gray-50 p-4">
          <h4 className="text-sm font-medium text-gray-700">모달 설정</h4>

          <div>
            <Label htmlFor="modal-title">모달 제목</Label>
            <Input
              id="modal-title"
              placeholder="모달 제목을 입력하세요"
              value={config.action?.modalTitle || ""}
              onChange={(e) =>
                onUpdateProperty("componentConfig.action", {
                  ...config.action,
                  modalTitle: e.target.value,
                })
              }
            />
          </div>

          <div>
            <Label htmlFor="modal-size">모달 크기</Label>
            <Select
              value={config.action?.modalSize || "md"}
              onValueChange={(value) =>
                onUpdateProperty("componentConfig.action", {
                  ...config.action,
                  modalSize: value,
                })
              }
            >
              <SelectTrigger>
                <SelectValue placeholder="모달 크기 선택" />
              </SelectTrigger>
              <SelectContent>
                <SelectItem value="sm">작음 (Small)</SelectItem>
                <SelectItem value="md">보통 (Medium)</SelectItem>
                <SelectItem value="lg">큼 (Large)</SelectItem>
                <SelectItem value="xl">매우 큼 (Extra Large)</SelectItem>
              </SelectContent>
            </Select>
          </div>

          <div>
            <Label htmlFor="target-screen-modal">대상 화면 선택</Label>
            <Popover open={modalScreenOpen} onOpenChange={setModalScreenOpen}>
              <PopoverTrigger asChild>
                <Button
                  variant="outline"
                  role="combobox"
                  aria-expanded={modalScreenOpen}
                  className="h-10 w-full justify-between"
                  disabled={screensLoading}
                >
                  {config.action?.targetScreenId
                    ? screens.find((screen) => screen.id === config.action?.targetScreenId)?.name ||
                      "화면을 선택하세요..."
                    : "화면을 선택하세요..."}
                  <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
                </Button>
              </PopoverTrigger>
              <PopoverContent className="p-0" align="start" style={{ width: "var(--radix-popover-trigger-width)" }}>
                <div className="flex flex-col">
                  {/* 검색 입력 */}
                  <div className="flex items-center border-b px-3 py-2">
                    <Search className="mr-2 h-4 w-4 shrink-0 opacity-50" />
                    <Input
                      placeholder="화면 검색..."
                      value={modalSearchTerm}
                      onChange={(e) => setModalSearchTerm(e.target.value)}
                      className="border-0 p-0 focus-visible:ring-0"
                    />
                  </div>
                  {/* 검색 결과 */}
                  <div className="max-h-[200px] overflow-auto">
                    {(() => {
                      const filteredScreens = filterScreens(modalSearchTerm);
                      if (screensLoading) {
                        return <div className="p-3 text-sm text-gray-500">화면 목록을 불러오는 중...</div>;
                      }
                      if (filteredScreens.length === 0) {
                        return <div className="p-3 text-sm text-gray-500">검색 결과가 없습니다.</div>;
                      }
                      return filteredScreens.map((screen, index) => (
                        <div
                          key={`modal-screen-${screen.id}-${index}`}
                          className="flex cursor-pointer items-center px-3 py-2 hover:bg-gray-100"
                          onClick={() => {
                            onUpdateProperty("componentConfig.action", {
                              ...config.action,
                              targetScreenId: screen.id,
                            });
                            setModalScreenOpen(false);
                            setModalSearchTerm("");
                          }}
                        >
                          <Check
                            className={cn(
                              "mr-2 h-4 w-4",
                              config.action?.targetScreenId === screen.id ? "opacity-100" : "opacity-0",
                            )}
                          />
                          <div className="flex flex-col">
                            <span className="font-medium">{screen.name}</span>
                            {screen.description && <span className="text-xs text-gray-500">{screen.description}</span>}
                          </div>
                        </div>
                      ));
                    })()}
                  </div>
                </div>
              </PopoverContent>
            </Popover>
          </div>
        </div>
      )}

      {/* 페이지 이동 액션 설정 */}
      {config.action?.type === "navigate" && (
        <div className="mt-4 space-y-4 rounded-lg border bg-gray-50 p-4">
          <h4 className="text-sm font-medium text-gray-700">페이지 이동 설정</h4>

          <div>
            <Label htmlFor="target-screen-nav">이동할 화면 선택</Label>
            <Popover open={navScreenOpen} onOpenChange={setNavScreenOpen}>
              <PopoverTrigger asChild>
                <Button
                  variant="outline"
                  role="combobox"
                  aria-expanded={navScreenOpen}
                  className="h-10 w-full justify-between"
                  disabled={screensLoading}
                >
                  {config.action?.targetScreenId
                    ? screens.find((screen) => screen.id === config.action?.targetScreenId)?.name ||
                      "화면을 선택하세요..."
                    : "화면을 선택하세요..."}
                  <ChevronsUpDown className="ml-2 h-4 w-4 shrink-0 opacity-50" />
                </Button>
              </PopoverTrigger>
              <PopoverContent className="p-0" align="start" style={{ width: "var(--radix-popover-trigger-width)" }}>
                <div className="flex flex-col">
                  {/* 검색 입력 */}
                  <div className="flex items-center border-b px-3 py-2">
                    <Search className="mr-2 h-4 w-4 shrink-0 opacity-50" />
                    <Input
                      placeholder="화면 검색..."
                      value={navSearchTerm}
                      onChange={(e) => setNavSearchTerm(e.target.value)}
                      className="border-0 p-0 focus-visible:ring-0"
                    />
                  </div>
                  {/* 검색 결과 */}
                  <div className="max-h-[200px] overflow-auto">
                    {(() => {
                      const filteredScreens = filterScreens(navSearchTerm);
                      if (screensLoading) {
                        return <div className="p-3 text-sm text-gray-500">화면 목록을 불러오는 중...</div>;
                      }
                      if (filteredScreens.length === 0) {
                        return <div className="p-3 text-sm text-gray-500">검색 결과가 없습니다.</div>;
                      }
                      return filteredScreens.map((screen, index) => (
                        <div
                          key={`navigate-screen-${screen.id}-${index}`}
                          className="flex cursor-pointer items-center px-3 py-2 hover:bg-gray-100"
                          onClick={() => {
                            onUpdateProperty("componentConfig.action", {
                              ...config.action,
                              targetScreenId: screen.id,
                            });
                            setNavScreenOpen(false);
                            setNavSearchTerm("");
                          }}
                        >
                          <Check
                            className={cn(
                              "mr-2 h-4 w-4",
                              config.action?.targetScreenId === screen.id ? "opacity-100" : "opacity-0",
                            )}
                          />
                          <div className="flex flex-col">
                            <span className="font-medium">{screen.name}</span>
                            {screen.description && <span className="text-xs text-gray-500">{screen.description}</span>}
                          </div>
                        </div>
                      ));
                    })()}
                  </div>
                </div>
              </PopoverContent>
            </Popover>
            <p className="mt-1 text-xs text-gray-500">
              선택한 화면으로 /screens/{"{"}화면ID{"}"} 형태로 이동합니다
            </p>
          </div>

          <div>
            <Label htmlFor="target-url">또는 직접 URL 입력 (고급)</Label>
            <Input
              id="target-url"
              placeholder="예: /admin/users 또는 https://example.com"
              value={config.action?.targetUrl || ""}
              onChange={(e) =>
                onUpdateProperty("componentConfig.action", {
                  ...config.action,
                  targetUrl: e.target.value,
                })
              }
            />
            <p className="mt-1 text-xs text-gray-500">URL을 입력하면 화면 선택보다 우선 적용됩니다</p>
          </div>
        </div>
      )}

      {/* 🔥 NEW: 제어관리 기능 섹션 */}
      <div className="mt-8 border-t border-gray-200 pt-6">
        <div className="mb-4">
          <h3 className="text-lg font-medium text-gray-900">🔧 고급 기능</h3>
          <p className="mt-1 text-sm text-gray-600">버튼 액션과 함께 실행될 추가 기능을 설정합니다</p>
        </div>

        <ButtonDataflowConfigPanel component={component} onUpdateProperty={onUpdateProperty} />
      </div>
    </div>
  );
};