"use client";

import React, { useState } from "react";
import { ChartDataSource } from "@/components/admin/dashboard/types";
import { Button } from "@/components/ui/button";
import { Tabs, TabsContent, TabsList, TabsTrigger } from "@/components/ui/tabs";
import { Plus, Trash2, Database, Globe } from "lucide-react";
import { Input } from "@/components/ui/input";
import { Label } from "@/components/ui/label";
import { RadioGroup, RadioGroupItem } from "@/components/ui/radio-group";
import {
  DropdownMenu,
  DropdownMenuContent,
  DropdownMenuItem,
  DropdownMenuTrigger,
} from "@/components/ui/dropdown-menu";
import MultiApiConfig from "./MultiApiConfig";
import MultiDatabaseConfig from "./MultiDatabaseConfig";

interface MultiDataSourceConfigProps {
  dataSources: ChartDataSource[];
  onChange: (dataSources: ChartDataSource[]) => void;
  onTestResult?: (result: { columns: string[]; rows: any[] }, dataSourceId: string) => void;
}

export default function MultiDataSourceConfig({
  dataSources = [],
  onChange,
  onTestResult,
}: MultiDataSourceConfigProps) {
  const [activeTab, setActiveTab] = useState<string>(
    dataSources.length > 0 ? dataSources[0].id || "0" : "new"
  );
  const [previewData, setPreviewData] = useState<any[]>([]);
  const [showPreview, setShowPreview] = useState(false);
  const [showAddMenu, setShowAddMenu] = useState(false);

  // 새 데이터 소스 추가 (타입 지정)
  const handleAddDataSource = (type: "api" | "database") => {
    const newId = Date.now().toString();
    const newSource: ChartDataSource = {
      id: newId,
      name: `${type === "api" ? "REST API" : "Database"} ${dataSources.length + 1}`,
      type,
    };
    
    onChange([...dataSources, newSource]);
    setActiveTab(newId);
    setShowAddMenu(false);
  };

  // 데이터 소스 삭제
  const handleDeleteDataSource = (id: string) => {
    const filtered = dataSources.filter((ds) => ds.id !== id);
    onChange(filtered);
    
    // 삭제 후 첫 번째 탭으로 이동
    if (filtered.length > 0) {
      setActiveTab(filtered[0].id || "0");
    } else {
      setActiveTab("new");
    }
  };

  // 데이터 소스 업데이트
  const handleUpdateDataSource = (id: string, updates: Partial<ChartDataSource>) => {
    const updated = dataSources.map((ds) =>
      ds.id === id ? { ...ds, ...updates } : ds
    );
    onChange(updated);
  };

  return (
    <div className="space-y-4">
      {/* 헤더 */}
      <div className="flex items-center justify-between">
        <div>
          <h4 className="text-sm font-semibold">데이터 소스 관리</h4>
          <p className="text-xs text-muted-foreground">
            여러 데이터 소스를 연결하여 데이터를 통합할 수 있습니다
          </p>
        </div>
        <DropdownMenu open={showAddMenu} onOpenChange={setShowAddMenu}>
          <DropdownMenuTrigger asChild>
            <Button
              variant="outline"
              size="sm"
              className="h-8 gap-2 text-xs"
            >
              <Plus className="h-3 w-3" />
              추가
            </Button>
          </DropdownMenuTrigger>
          <DropdownMenuContent align="end">
            <DropdownMenuItem onClick={() => handleAddDataSource("api")}>
              <Globe className="mr-2 h-4 w-4" />
              REST API 추가
            </DropdownMenuItem>
            <DropdownMenuItem onClick={() => handleAddDataSource("database")}>
              <Database className="mr-2 h-4 w-4" />
              Database 추가
            </DropdownMenuItem>
          </DropdownMenuContent>
        </DropdownMenu>
      </div>

      {/* 데이터 소스가 없는 경우 */}
      {dataSources.length === 0 ? (
        <div className="flex flex-col items-center justify-center rounded-lg border border-dashed p-8">
          <p className="mb-4 text-sm text-muted-foreground">
            연결된 데이터 소스가 없습니다
          </p>
          <DropdownMenu>
            <DropdownMenuTrigger asChild>
              <Button
                variant="default"
                size="sm"
                className="h-8 gap-2 text-xs"
              >
                <Plus className="h-3 w-3" />
                첫 번째 데이터 소스 추가
              </Button>
            </DropdownMenuTrigger>
            <DropdownMenuContent align="center">
              <DropdownMenuItem onClick={() => handleAddDataSource("api")}>
                <Globe className="mr-2 h-4 w-4" />
                REST API 추가
              </DropdownMenuItem>
              <DropdownMenuItem onClick={() => handleAddDataSource("database")}>
                <Database className="mr-2 h-4 w-4" />
                Database 추가
              </DropdownMenuItem>
            </DropdownMenuContent>
          </DropdownMenu>
        </div>
      ) : (
        /* 탭 UI */
        <Tabs value={activeTab} onValueChange={setActiveTab}>
          <TabsList className="w-full justify-start overflow-x-auto">
            {dataSources.map((ds, index) => (
              <TabsTrigger
                key={ds.id}
                value={ds.id || index.toString()}
                className="text-xs"
              >
                {ds.name || `소스 ${index + 1}`}
              </TabsTrigger>
            ))}
          </TabsList>

          {dataSources.map((ds, index) => (
            <TabsContent
              key={ds.id}
              value={ds.id || index.toString()}
              className="space-y-4"
            >
              {/* 데이터 소스 기본 정보 */}
              <div className="space-y-3 rounded-lg border p-4">
                {/* 이름 */}
                <div className="space-y-2">
                  <Label htmlFor={`name-${ds.id}`} className="text-xs">
                    데이터 소스 이름
                  </Label>
                  <Input
                    id={`name-${ds.id}`}
                    value={ds.name || ""}
                    onChange={(e) =>
                      handleUpdateDataSource(ds.id!, { name: e.target.value })
                    }
                    placeholder="예: 기상특보, 교통정보"
                    className="h-8 text-xs"
                  />
                </div>

                {/* 타입 선택 */}
                <div className="space-y-2">
                  <Label className="text-xs">데이터 소스 타입</Label>
                  <RadioGroup
                    value={ds.type}
                    onValueChange={(value: "database" | "api") =>
                      handleUpdateDataSource(ds.id!, { type: value })
                    }
                  >
                    <div className="flex items-center space-x-2">
                      <RadioGroupItem value="api" id={`api-${ds.id}`} />
                      <Label
                        htmlFor={`api-${ds.id}`}
                        className="text-xs font-normal"
                      >
                        REST API
                      </Label>
                    </div>
                    <div className="flex items-center space-x-2">
                      <RadioGroupItem value="database" id={`db-${ds.id}`} />
                      <Label
                        htmlFor={`db-${ds.id}`}
                        className="text-xs font-normal"
                      >
                        Database
                      </Label>
                    </div>
                  </RadioGroup>
                </div>

                {/* 삭제 버튼 */}
                <div className="border-t pt-3">
                  <Button
                    variant="destructive"
                    size="sm"
                    onClick={() => handleDeleteDataSource(ds.id!)}
                    className="h-8 gap-2 text-xs"
                  >
                    <Trash2 className="h-3 w-3" />
                    이 데이터 소스 삭제
                  </Button>
                </div>
              </div>

              {/* 지도 표시 방식 선택 (지도 위젯만) */}
              <div className="space-y-2">
                <Label className="text-xs font-medium">지도 표시 방식</Label>
                <RadioGroup
                  value={ds.mapDisplayType || "auto"}
                  onValueChange={(value) =>
                    handleUpdateDataSource(ds.id!, { mapDisplayType: value as "auto" | "marker" | "polygon" })
                  }
                  className="flex gap-4"
                >
                  <div className="flex items-center space-x-2">
                    <RadioGroupItem value="auto" id={`auto-${ds.id}`} />
                    <Label htmlFor={`auto-${ds.id}`} className="text-xs font-normal cursor-pointer">
                      자동 (데이터 기반)
                    </Label>
                  </div>
                  <div className="flex items-center space-x-2">
                    <RadioGroupItem value="marker" id={`marker-${ds.id}`} />
                    <Label htmlFor={`marker-${ds.id}`} className="text-xs font-normal cursor-pointer">
                      📍 마커
                    </Label>
                  </div>
                  <div className="flex items-center space-x-2">
                    <RadioGroupItem value="polygon" id={`polygon-${ds.id}`} />
                    <Label htmlFor={`polygon-${ds.id}`} className="text-xs font-normal cursor-pointer">
                      🔷 영역
                    </Label>
                  </div>
                </RadioGroup>
                <p className="text-xs text-muted-foreground">
                  {ds.mapDisplayType === "marker" && "모든 데이터를 마커로 표시합니다"}
                  {ds.mapDisplayType === "polygon" && "모든 데이터를 영역(폴리곤)으로 표시합니다"}
                  {(!ds.mapDisplayType || ds.mapDisplayType === "auto") && "데이터에 coordinates가 있으면 영역, 없으면 마커로 자동 표시"}
                </p>
              </div>

              {/* 타입별 설정 */}
              {ds.type === "api" ? (
                <MultiApiConfig
                  dataSource={ds}
                  onChange={(updates) => handleUpdateDataSource(ds.id!, updates)}
                  onTestResult={(data) => {
                    setPreviewData(data);
                    setShowPreview(true);
                    // 부모로 테스트 결과 전달 (차트 설정용)
                    if (onTestResult && data.length > 0 && ds.id) {
                      const columns = Object.keys(data[0]);
                      onTestResult({ columns, rows: data }, ds.id);
                    }
                  }}
                />
              ) : (
                <MultiDatabaseConfig
                  dataSource={ds}
                  onChange={(updates) => handleUpdateDataSource(ds.id!, updates)}
                  onTestResult={(data) => {
                    // 부모로 테스트 결과 전달 (차트 설정용)
                    if (onTestResult && data.length > 0 && ds.id) {
                      const columns = Object.keys(data[0]);
                      onTestResult({ columns, rows: data }, ds.id);
                    }
                  }}
                />
              )}
            </TabsContent>
          ))}
        </Tabs>
      )}

      {/* 지도 미리보기 */}
      {showPreview && previewData.length > 0 && (
        <div className="rounded-lg border bg-card p-4 shadow-sm">
          <div className="mb-3 flex items-center justify-between">
            <div>
              <h5 className="text-sm font-semibold">
                데이터 미리보기 ({previewData.length}건)
              </h5>
              <p className="text-xs text-muted-foreground">
                "적용" 버튼을 눌러 지도에 표시하세요
              </p>
            </div>
            <Button
              variant="ghost"
              size="sm"
              onClick={() => setShowPreview(false)}
              className="h-7 text-xs"
            >
              닫기
            </Button>
          </div>
          
          <div className="max-h-[400px] space-y-2 overflow-y-auto">
            {previewData.map((item, index) => {
              const hasLatLng = (item.lat || item.latitude) && (item.lng || item.longitude);
              const hasCoordinates = item.coordinates && Array.isArray(item.coordinates);
              
              return (
                <div 
                  key={index} 
                  className="rounded border bg-background p-3 text-xs"
                >
                  <div className="mb-1 flex items-center justify-between">
                    <div className="font-medium">
                      {item.name || item.title || item.area || item.region || `항목 ${index + 1}`}
                    </div>
                    {(item.status || item.level) && (
                      <div className={`rounded px-2 py-0.5 text-[10px] font-medium ${
                        (item.status || item.level)?.includes('경보') || (item.status || item.level)?.includes('위험')
                          ? 'bg-destructive/10 text-destructive'
                          : (item.status || item.level)?.includes('주의')
                          ? 'bg-warning/10 text-warning'
                          : 'bg-primary/10 text-primary'
                      }`}>
                        {item.status || item.level}
                      </div>
                    )}
                  </div>
                  
                  {hasLatLng && (
                    <div className="text-muted-foreground">
                      📍 마커: ({item.lat || item.latitude}, {item.lng || item.longitude})
                    </div>
                  )}
                  
                  {hasCoordinates && (
                    <div className="text-muted-foreground">
                      🔷 영역: {item.coordinates.length}개 좌표
                    </div>
                  )}
                  
                  {(item.type || item.description) && (
                    <div className="mt-1 text-muted-foreground">
                      {item.type && `${item.type} `}
                      {item.description && item.description !== item.type && `- ${item.description}`}
                    </div>
                  )}
                </div>
              );
            })}
          </div>
        </div>
      )}
    </div>
  );
}