"use client";

import React from "react";
import { DragData, ElementType, ElementSubtype } from "./types";

/**
 * 대시보드 사이드바 컴포넌트
 * - 드래그 가능한 차트/위젯 목록
 * - 카테고리별 구분
 */
export function DashboardSidebar() {
  // 드래그 시작 처리
  const handleDragStart = (e: React.DragEvent, type: ElementType, subtype: ElementSubtype) => {
    const dragData: DragData = { type, subtype };
    e.dataTransfer.setData("application/json", JSON.stringify(dragData));
    e.dataTransfer.effectAllowed = "copy";
  };

  return (
    <div className="w-[370px] overflow-y-auto border-l border-gray-200 bg-white p-6">
      {/* 차트 섹션 */}
      <div className="mb-8">
        <h3 className="mb-4 border-b-2 border-green-500 pb-3 text-lg font-semibold text-gray-800">📊 차트 종류</h3>

        <div className="space-y-3">
          <DraggableItem
            icon="📊"
            title="바 차트"
            type="chart"
            subtype="bar"
            onDragStart={handleDragStart}
            className="border-primary border-l-4"
          />
          <DraggableItem
            icon="📚"
            title="누적 바 차트"
            type="chart"
            subtype="stacked-bar"
            onDragStart={handleDragStart}
            className="border-l-4 border-blue-600"
          />
          <DraggableItem
            icon="📈"
            title="꺾은선 차트"
            type="chart"
            subtype="line"
            onDragStart={handleDragStart}
            className="border-l-4 border-green-500"
          />
          <DraggableItem
            icon="📉"
            title="영역 차트"
            type="chart"
            subtype="area"
            onDragStart={handleDragStart}
            className="border-l-4 border-green-600"
          />
          <DraggableItem
            icon="🥧"
            title="원형 차트"
            type="chart"
            subtype="pie"
            onDragStart={handleDragStart}
            className="border-l-4 border-purple-500"
          />
          <DraggableItem
            icon="🍩"
            title="도넛 차트"
            type="chart"
            subtype="donut"
            onDragStart={handleDragStart}
            className="border-l-4 border-purple-600"
          />
          <DraggableItem
            icon="📊📈"
            title="콤보 차트"
            type="chart"
            subtype="combo"
            onDragStart={handleDragStart}
            className="border-l-4 border-indigo-500"
          />
        </div>
      </div>

      {/* 위젯 섹션 */}
      <div className="mb-8">
        <h3 className="mb-4 border-b-2 border-green-500 pb-3 text-lg font-semibold text-gray-800">🔧 위젯 종류</h3>

        <div className="space-y-3">
          <DraggableItem
            icon="💱"
            title="환율 위젯"
            type="widget"
            subtype="exchange"
            onDragStart={handleDragStart}
            className="border-l-4 border-orange-500"
          />
          <DraggableItem
            icon="☁️"
            title="날씨 위젯"
            type="widget"
            subtype="weather"
            onDragStart={handleDragStart}
            className="border-l-4 border-cyan-500"
          />
          <DraggableItem
            icon="🧮"
            title="계산기 위젯"
            type="widget"
            subtype="calculator"
            onDragStart={handleDragStart}
            className="border-l-4 border-green-500"
          />
          <DraggableItem
            icon="⏰"
            title="시계 위젯"
            type="widget"
            subtype="clock"
            onDragStart={handleDragStart}
            className="border-l-4 border-teal-500"
          />
          <DraggableItem
            icon="🚚"
            title="차량 위치 지도"
            type="widget"
            subtype="vehicle-map"
            onDragStart={handleDragStart}
            className="border-l-4 border-red-500"
          />
          <DraggableItem
            icon="📦"
            title="배송/화물 현황"
            type="widget"
            subtype="delivery-status"
            onDragStart={handleDragStart}
            className="border-l-4 border-amber-500"
          />
          <DraggableItem
            icon="⚠️"
            title="리스크/알림 위젯"
            type="widget"
            subtype="risk-alert"
            onDragStart={handleDragStart}
            className="border-l-4 border-rose-500"
          />
          <DraggableItem
            icon="📅"
            title="달력 위젯"
            type="widget"
            subtype="calendar"
            onDragStart={handleDragStart}
            className="border-l-4 border-indigo-500"
          />
          <DraggableItem
            icon="🚗"
            title="기사 관리 위젯"
            type="widget"
            subtype="driver-management"
            onDragStart={handleDragStart}
            className="border-l-4 border-blue-500"
          />
        </div>
      </div>

      {/* 운영/작업 지원 섹션 */}
      <div className="mb-8">
        <h3 className="mb-4 border-b-2 border-green-500 pb-3 text-lg font-semibold text-gray-800">📋 운영/작업 지원</h3>

        <div className="space-y-3">
          <DraggableItem
            icon="✅"
            title="To-Do / 긴급 지시"
            type="widget"
            subtype="todo"
            onDragStart={handleDragStart}
            className="border-l-4 border-blue-600"
          />
          <DraggableItem
            icon="🔔"
            title="예약 요청 알림"
            type="widget"
            subtype="booking-alert"
            onDragStart={handleDragStart}
            className="border-l-4 border-rose-600"
          />
          <DraggableItem
            icon="🔧"
            title="정비 일정 관리"
            type="widget"
            subtype="maintenance"
            onDragStart={handleDragStart}
            className="border-l-4 border-teal-600"
          />
          <DraggableItem
            icon="📂"
            title="문서 다운로드"
            type="widget"
            subtype="document"
            onDragStart={handleDragStart}
            className="border-l-4 border-purple-600"
          />
        </div>
      </div>
    </div>
  );
}

interface DraggableItemProps {
  icon: string;
  title: string;
  type: ElementType;
  subtype: ElementSubtype;
  className?: string;
  onDragStart: (e: React.DragEvent, type: ElementType, subtype: ElementSubtype) => void;
}

/**
 * 드래그 가능한 아이템 컴포넌트
 */
function DraggableItem({ icon, title, type, subtype, className = "", onDragStart }: DraggableItemProps) {
  return (
    <div
      draggable
      className={`cursor-move rounded-lg border-2 border-gray-200 bg-white p-4 text-center text-sm font-medium transition-all duration-200 hover:translate-x-1 hover:border-green-500 hover:bg-gray-50 ${className} `}
      onDragStart={(e) => onDragStart(e, type, subtype)}
    >
      <span className="mr-2 text-lg">{icon}</span>
      {title}
    </div>
  );
}