"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";
import { ImprovedButtonControlConfigPanel } from "./ImprovedButtonControlConfigPanel";

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 }) => {
  // 🔧 항상 최신 component에서 직접 참조
  const config = component.componentConfig || {};
  const currentAction = component.componentConfig?.action || {}; // 🔧 최신 action 참조

  // 로컬 상태 관리 (실시간 입력 반영)
  const [localInputs, setLocalInputs] = useState({
    text: config.text !== undefined ? config.text : "버튼", // 🔧 빈 문자열 허용
    modalTitle: config.action?.modalTitle || "",
    editModalTitle: config.action?.editModalTitle || "",
    editModalDescription: config.action?.editModalDescription || "",
    targetUrl: config.action?.targetUrl || "",
  });

  const [localSelects, setLocalSelects] = useState({
    variant: config.variant || "default",
    size: config.size || "md", // 🔧 기본값을 "md"로 변경
    actionType: config.action?.type, // 🔧 기본값 완전 제거 (undefined)
    modalSize: config.action?.modalSize || "md",
    editMode: config.action?.editMode || "modal",
  });

  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("");

  // 컴포넌트 변경 시 로컬 상태 동기화
  useEffect(() => {
    console.log("🔄 ButtonConfigPanel useEffect 실행:", {
      componentId: component.id,
      "config.action?.type": config.action?.type,
      "localSelects.actionType (before)": localSelects.actionType,
      fullAction: config.action,
      "component.componentConfig.action": component.componentConfig?.action,
    });

    setLocalInputs({
      text: config.text !== undefined ? config.text : "버튼", // 🔧 빈 문자열 허용
      modalTitle: config.action?.modalTitle || "",
      editModalTitle: config.action?.editModalTitle || "",
      editModalDescription: config.action?.editModalDescription || "",
      targetUrl: config.action?.targetUrl || "",
    });

    setLocalSelects((prev) => {
      const newSelects = {
        variant: config.variant || "default",
        size: config.size || "md", // 🔧 기본값을 "md"로 변경
        actionType: config.action?.type, // 🔧 기본값 완전 제거 (undefined)
        modalSize: config.action?.modalSize || "md",
        editMode: config.action?.editMode || "modal",
      };
      
      console.log("📝 setLocalSelects 호출:", {
        "prev.actionType": prev.actionType,
        "new.actionType": newSelects.actionType,
        "config.action?.type": config.action?.type,
      });
      
      return newSelects;
    });
  }, [
    component.id, // 🔧 컴포넌트 ID (다른 컴포넌트로 전환 시)
    component.componentConfig?.action?.type, // 🔧 액션 타입 (액션 변경 시 즉시 반영)
    component.componentConfig?.text, // 🔧 버튼 텍스트
    component.componentConfig?.variant, // 🔧 버튼 스타일
    component.componentConfig?.size, // 🔧 버튼 크기
  ]);

  // 화면 목록 가져오기
  useEffect(() => {
    const fetchScreens = async () => {
      try {
        setScreensLoading(true);
        const response = await apiClient.get("/screen-management/screens");

        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);
        }
      } 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={localInputs.text}
          onChange={(e) => {
            const newValue = e.target.value;
            setLocalInputs((prev) => ({ ...prev, text: newValue }));
            onUpdateProperty("componentConfig.text", newValue);
          }}
          placeholder="버튼 텍스트를 입력하세요"
        />
      </div>

      <div>
        <Label htmlFor="button-variant">버튼 스타일</Label>
        <Select
          value={localSelects.variant}
          onValueChange={(value) => {
            setLocalSelects((prev) => ({ ...prev, variant: 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 글씨 크기</Label>
        <Select
          value={localSelects.size}
          onValueChange={(value) => {
            setLocalSelects((prev) => ({ ...prev, size: value }));
            onUpdateProperty("componentConfig.size", value);
          }}
        >
          <SelectTrigger>
            <SelectValue placeholder="버튼 글씨 크기 선택" />
          </SelectTrigger>
          <SelectContent>
            <SelectItem value="sm">작음 (Small)</SelectItem>
            <SelectItem value="md">기본 (Default)</SelectItem>
            <SelectItem value="lg">큼 (Large)</SelectItem>
          </SelectContent>
        </Select>
      </div>

      <div>
        <Label htmlFor="button-action">버튼 액션</Label>
        <Select
          value={localSelects.actionType || undefined}
          onValueChange={(value) => {
            console.log("🔵 버튼 액션 변경 시작:", {
              oldValue: localSelects.actionType,
              newValue: value,
              componentId: component.id,
              "현재 component.componentConfig.action": component.componentConfig?.action,
            });

            // 로컬 상태 업데이트
            setLocalSelects((prev) => {
              console.log("📝 setLocalSelects (액션 변경):", {
                "prev.actionType": prev.actionType,
                "new.actionType": value,
              });
              return { ...prev, actionType: value };
            });

            // 🔧 개별 속성만 업데이트
            onUpdateProperty("componentConfig.action.type", value);

            // 액션에 따른 라벨 색상 자동 설정 (별도 호출)
            if (value === "delete") {
              onUpdateProperty("style.labelColor", "#ef4444");
            } else {
              onUpdateProperty("style.labelColor", "#212121");
            }
            
            console.log("✅ 버튼 액션 변경 완료");
          }}
        >
          <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>
            <SelectItem value="control">제어 (조건 체크만)</SelectItem>
          </SelectContent>
        </Select>
      </div>

      {/* 모달 열기 액션 설정 */}
      {localSelects.actionType === "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={localInputs.modalTitle}
              onChange={(e) => {
                const newValue = e.target.value;
                setLocalInputs((prev) => ({ ...prev, modalTitle: newValue }));
                onUpdateProperty("componentConfig.action.modalTitle", newValue);
              }}
            />
          </div>

          <div>
            <Label htmlFor="modal-size">모달 크기</Label>
            <Select
              value={localSelects.modalSize}
              onValueChange={(value) => {
                setLocalSelects((prev) => ({ ...prev, modalSize: value }));
                onUpdateProperty("componentConfig.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">
                  <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>
                  <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.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>
      )}

      {/* 수정 액션 설정 */}
      {localSelects.actionType === "edit" && (
        <div className="mt-4 space-y-4 rounded-lg border bg-green-50 p-4">
          <h4 className="text-sm font-medium text-gray-700">수정 설정</h4>

          <div>
            <Label htmlFor="edit-screen">수정 폼 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 ||
                      "수정 폼 화면을 선택하세요..."
                    : "수정 폼 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">
                  <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>
                  <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={`edit-screen-${screen.id}-${index}`}
                          className="flex cursor-pointer items-center px-3 py-2 hover:bg-gray-100"
                          onClick={() => {
                            onUpdateProperty("componentConfig.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>
            <p className="mt-1 text-xs text-gray-500">
              선택된 데이터가 이 폼 화면에 자동으로 로드되어 수정할 수 있습니다
            </p>
          </div>

          <div>
            <Label htmlFor="edit-mode">수정 모드</Label>
            <Select
              value={localSelects.editMode}
              onValueChange={(value) => {
                setLocalSelects((prev) => ({ ...prev, editMode: value }));
                onUpdateProperty("componentConfig.action.editMode", value);
              }}
            >
              <SelectTrigger>
                <SelectValue placeholder="수정 모드 선택" />
              </SelectTrigger>
              <SelectContent>
                <SelectItem value="modal">모달로 열기</SelectItem>
                <SelectItem value="navigate">새 페이지로 이동</SelectItem>
                <SelectItem value="inline">현재 화면에서 수정</SelectItem>
              </SelectContent>
            </Select>
          </div>

          {localSelects.editMode === "modal" && (
            <>
              <div>
                <Label htmlFor="edit-modal-title">모달 제목</Label>
                <Input
                  id="edit-modal-title"
                  placeholder="모달 제목을 입력하세요 (예: 데이터 수정)"
                  value={localInputs.editModalTitle}
                  onChange={(e) => {
                    const newValue = e.target.value;
                    setLocalInputs((prev) => ({ ...prev, editModalTitle: newValue }));
                    onUpdateProperty("componentConfig.action.editModalTitle", newValue);
                    onUpdateProperty("webTypeConfig.editModalTitle", newValue);
                  }}
                />
                <p className="mt-1 text-xs text-gray-500">비워두면 기본 제목이 표시됩니다</p>
              </div>

              <div>
                <Label htmlFor="edit-modal-description">모달 설명</Label>
                <Input
                  id="edit-modal-description"
                  placeholder="모달 설명을 입력하세요 (예: 선택한 데이터를 수정합니다)"
                  value={localInputs.editModalDescription}
                  onChange={(e) => {
                    const newValue = e.target.value;
                    setLocalInputs((prev) => ({ ...prev, editModalDescription: newValue }));
                    onUpdateProperty("componentConfig.action.editModalDescription", newValue);
                    onUpdateProperty("webTypeConfig.editModalDescription", newValue);
                  }}
                />
                <p className="mt-1 text-xs text-gray-500">비워두면 설명이 표시되지 않습니다</p>
              </div>

              <div>
                <Label htmlFor="edit-modal-size">모달 크기</Label>
                <Select
                  value={localSelects.modalSize}
                  onValueChange={(value) => {
                    setLocalSelects((prev) => ({ ...prev, modalSize: value }));
                    onUpdateProperty("componentConfig.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>
                    <SelectItem value="full">전체 화면 (Full)</SelectItem>
                  </SelectContent>
                </Select>
              </div>
            </>
          )}
        </div>
      )}

      {/* 페이지 이동 액션 설정 */}
      {localSelects.actionType === "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">
                  <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>
                  <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.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={localInputs.targetUrl}
              onChange={(e) => {
                const newValue = e.target.value;
                setLocalInputs((prev) => ({ ...prev, targetUrl: newValue }));
                onUpdateProperty("componentConfig.action.targetUrl", newValue);
              }}
            />
            <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="text-muted-foreground mt-1 text-sm">버튼 액션과 함께 실행될 추가 기능을 설정합니다</p>
        </div>

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