import { useRef } from 'react';
import { Button, Switch, Tabs, TabsList, TabsTrigger, Badge, Toggle } from '@hm-design/ui';
import { FolderOpen, Scan, Layers, SlidersHorizontal, Info as InfoIcon } from 'lucide-react';
import type { CadSpace } from '../viewer2d/cadSpaces';
import { LicenseNotice } from './LicenseNotice';

export interface ToolbarProps {
  status: string;
  statusError: boolean;
  spaces: CadSpace[];
  activeSpace: string | null;
  onSelectSpace: (handleHex: string | null) => void;
  onOpenFile: (file: File) => void;
  onLoadSample: (url: string, label: string) => void;
  onFit: () => void;
  is25D: boolean;
  onToggle25D: (on: boolean) => void;
  canvasDark: boolean;
  onToggleTheme: () => void;
  layersOpen: boolean;
  onToggleLayers: () => void;
  optionsOpen: boolean;
  onToggleOptions: () => void;
  propsOpen: boolean;
  onToggleProps: () => void;
}

export function Toolbar({
  status,
  statusError,
  spaces,
  activeSpace,
  onSelectSpace,
  onOpenFile,
  onLoadSample,
  onFit,
  is25D,
  onToggle25D,
  canvasDark,
  onToggleTheme,
  layersOpen,
  onToggleLayers,
  optionsOpen,
  onToggleOptions,
  propsOpen,
  onToggleProps,
}: ToolbarProps) {
  const fileInputRef = useRef<HTMLInputElement>(null);
  const showSpaceTabs = spaces.length > 1 || (spaces[0]?.entityCount ?? 0) > 0;

  return (
    <div className="pointer-events-none fixed inset-x-0 top-0 z-20 flex items-center gap-2 border-b bg-card/90 px-3 py-2 backdrop-blur [&>*]:pointer-events-auto">
      <input
        ref={fileInputRef}
        type="file"
        accept=".dwg,.dxf"
        className="hidden"
        onChange={(e) => {
          const file = e.target.files?.[0];
          if (file) onOpenFile(file);
          e.currentTarget.value = '';
        }}
      />
      <Button type="button" variant="outline" size="sm" onClick={() => fileInputRef.current?.click()}>
        <FolderOpen /> 파일 열기
      </Button>
      <Button type="button" variant="secondary" size="sm" title="acadrust-dwg WASM" onClick={() => onLoadSample('/samples/BasicSample.dwg', 'BasicSample.dwg')}>
        Sample DWG
      </Button>
      <Button type="button" variant="secondary" size="sm" onClick={() => onLoadSample('/samples/civil.dwg', 'C0060202-001-평면및종단면도.dwg')}>
        Sample Civil
      </Button>
      <Button type="button" variant="secondary" size="sm" title="dxf-parser" onClick={() => onLoadSample('/samples/simple.dxf', 'simple.dxf')}>
        Sample DXF
      </Button>

      {showSpaceTabs && (
        <Tabs value={activeSpace ?? undefined} onValueChange={(v) => onSelectSpace(v)}>
          <TabsList>
            {spaces.map((s) => (
              <TabsTrigger key={s.handleHex} value={s.handleHex} title={`${s.name} · ${s.handleHex}`}>
                {s.label}
                {s.entityCount > 0 ? ` (${s.entityCount})` : ''}
              </TabsTrigger>
            ))}
          </TabsList>
        </Tabs>
      )}

      <Button type="button" variant="ghost" size="sm" onClick={onFit} title="Fit (F)">
        <Scan /> Fit
      </Button>

      <label className="flex items-center gap-1.5 text-xs text-muted-foreground">
        <Switch checked={is25D} onCheckedChange={onToggle25D} />
        2.5D
      </label>

      <label className="flex items-center gap-1.5 text-xs text-muted-foreground">
        <Switch checked={canvasDark} onCheckedChange={onToggleTheme} />
        캔버스 테마
      </label>

      <div className="ml-auto flex items-center gap-1">
        <Toggle pressed={layersOpen} onPressedChange={onToggleLayers} size="sm" aria-label="레이어 패널" title="Layers">
          <Layers />
        </Toggle>
        <Toggle pressed={optionsOpen} onPressedChange={onToggleOptions} size="sm" aria-label="옵션 패널" title="Options">
          <SlidersHorizontal />
        </Toggle>
        <Toggle pressed={propsOpen} onPressedChange={onToggleProps} size="sm" aria-label="속성 패널" title="Properties">
          <InfoIcon />
        </Toggle>
        <LicenseNotice />
      </div>

      <Badge variant={statusError ? 'destructive' : 'secondary'} className="max-w-[320px] truncate">
        {status}
      </Badge>
    </div>
  );
}