import { useState } from 'react';
import { Cable, Code2, Cpu, FolderOpen, Link, List, Zap } from 'lucide-react';
import MediaBrowser from './MediaBrowser';

interface IECPageProps {
  config: any;
  setConfig: (config: any) => void;
}

export default function IECPage({ config, setConfig }: IECPageProps) {
  const [showMediaBrowser, setShowMediaBrowser] = useState(false);
  const [driveRomBrowsingKey, setDriveRomBrowsingKey] = useState<string | null>(null);
  const updateSetting = (path: string[], value: any) => {
    const newConfig = JSON.parse(JSON.stringify(config));
    let current = newConfig;

    for (let i = 0; i < path.length - 1; i++) {
      current = current[path[i]];
    }

    current[path[path.length - 1]] = value;
    setConfig(newConfig);
  };

  const settings = config.settings || {};

  const boolDirEntries = Object.entries(settings.directory || {}).filter(([, v]) => v === 0 || v === 1);
  const isCompatMode   = boolDirEntries.length > 0 && boolDirEntries.every(([, v]) => v === 0);

  const setAllDirBools = (val: 0 | 1) => {
    const newConfig = JSON.parse(JSON.stringify(config));
    const dir = newConfig.settings?.directory ?? {};
    for (const k of Object.keys(dir)) {
      if (dir[k] === 0 || dir[k] === 1) dir[k] = val;
    }
    setConfig(newConfig);
  };

  return (
    <div className="p-4 space-y-4">
      <h2 className="text-sm text-neutral-500 flex items-center gap-2"><Cable className="w-4 h-4" /> IEC Settings</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        <div className="p-4 flex items-center justify-between">
          <label className="text-sm text-neutral-500">IEC Enabled</label>
          <button
            onClick={() => updateSetting(['settings', 'enabled'], settings.enabled ? 0 : 1)}
            className={`relative w-12 h-6 rounded-full transition-colors ${
              settings.enabled ? 'bg-blue-600' : 'bg-neutral-300'
            }`}
          >
            <div
              className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                settings.enabled ? 'translate-x-6' : 'translate-x-0.5'
              }`}
            />
          </button>
        </div>

        <div className="p-4 flex items-center justify-between">
          <label className="text-sm text-neutral-500">VIC-20 Mode</label>
          <button
            onClick={() => updateSetting(['settings', 'vic20_mode'], settings.vic20_mode ? 0 : 1)}
            className={`relative w-12 h-6 rounded-full transition-colors ${
              settings.vic20_mode ? 'bg-blue-600' : 'bg-neutral-300'
            }`}
          >
            <div
              className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                settings.vic20_mode ? 'translate-x-6' : 'translate-x-0.5'
              }`}
            />
          </button>
        </div>

        <div className="p-4 flex items-center justify-between">
          <label className="text-sm text-neutral-500">VDrive Mode</label>
          <button
            onClick={() => updateSetting(['settings', 'vdrive_mode'], settings.vdrive_mode ? 0 : 1)}
            className={`relative w-12 h-6 rounded-full transition-colors ${
              settings.vdrive_mode ? 'bg-blue-600' : 'bg-neutral-300'
            }`}
          >
            <div
              className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                settings.vdrive_mode ? 'translate-x-6' : 'translate-x-0.5'
              }`}
            />
          </button>
        </div>

        <div className="p-4">
          <label className="text-sm text-neutral-500 block mb-2">Autoboot</label>
          <div className="flex gap-2">
            <input
              type="text"
              value={settings.autoboot || ''}
              onChange={(e) => updateSetting(['settings', 'autoboot'], e.target.value)}
              className="flex-1 px-3 py-2 border border-neutral-300 rounded-lg"
            />
            <button
              onClick={() => setShowMediaBrowser(true)}
              className="px-3 py-2 border border-neutral-300 rounded-lg bg-neutral-50 hover:bg-neutral-100"
              title="Browse files"
            >
              <FolderOpen className="w-5 h-5" />
            </button>
          </div>
        </div>

      {showMediaBrowser && (
        <MediaBrowser
          currentPath={settings.autoboot || '/'}
          onSelect={(path) => {
            updateSetting(['settings', 'autoboot'], path);
            setShowMediaBrowser(false);
          }}
          onClose={() => setShowMediaBrowser(false)}
        />
      )}
      </div>

      <h2 className="text-sm text-neutral-500 pt-4 flex items-center gap-2"><Cpu className="w-4 h-4" /> Drive ROMs</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        <div className="p-4 flex items-center justify-between">
          <label className="text-sm text-neutral-500">Enabled</label>
          <button
            onClick={() => {
              const newConfig = JSON.parse(JSON.stringify(config));
              const dr = newConfig.settings.drive_roms ?? {};
              const current = dr.enabled ?? dr.auto ?? 0;
              dr.enabled = current ? 0 : 1;
              delete dr.auto;
              newConfig.settings.drive_roms = dr;
              setConfig(newConfig);
            }}
            className={`relative w-12 h-6 rounded-full transition-colors ${
              (settings.drive_roms?.enabled ?? settings.drive_roms?.auto) ? 'bg-blue-600' : 'bg-neutral-300'
            }`}
          >
            <div
              className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                (settings.drive_roms?.enabled ?? settings.drive_roms?.auto) ? 'translate-x-6' : 'translate-x-0.5'
              }`}
            />
          </button>
        </div>
        {(['default', 'd64', 'd71', 'd81'] as const).map((key) => (
          <div key={key} className="p-4">
            <label className="text-sm text-neutral-500 block mb-2">
              {key === 'default' ? 'Default' : key.toUpperCase()}
            </label>
            <div className="flex gap-2">
              <input
                type="text"
                value={settings.drive_roms?.[key] || ''}
                onChange={(e) => updateSetting(['settings', 'drive_roms', key], e.target.value)}
                className="flex-1 px-3 py-2 border border-neutral-300 rounded-lg"
              />
              <button
                onClick={() => setDriveRomBrowsingKey(key)}
                className="px-3 py-2 border border-neutral-300 rounded-lg bg-neutral-50 hover:bg-neutral-100"
                title="Browse files"
              >
                <FolderOpen className="w-5 h-5" />
              </button>
            </div>
          </div>
        ))}
      </div>

      {driveRomBrowsingKey && (
        <MediaBrowser
          currentPath={settings.drive_roms?.[driveRomBrowsingKey] || '/'}
          onSelect={(path) => {
            updateSetting(['settings', 'drive_roms', driveRomBrowsingKey], path);
            setDriveRomBrowsingKey(null);
          }}
          onClose={() => setDriveRomBrowsingKey(null)}
        />
      )}

      <h2 className="text-sm text-neutral-500 pt-4 flex items-center gap-2"><List className="w-4 h-4" /> Directory Enhancements</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        {/* CBM Directory Compatibility Mode */}
        <div className="p-4 flex items-center justify-between bg-neutral-50">
          <div>
            <div className="text-sm font-medium text-neutral-700">CBM Directory Compatibility</div>
            <div className="text-xs text-neutral-400 mt-0.5">Disables all directory enhancements</div>
          </div>
          <button
            onClick={() => setAllDirBools(isCompatMode ? 1 : 0)}
            className={`relative w-12 h-6 rounded-full transition-colors ${isCompatMode ? 'bg-blue-600' : 'bg-neutral-300'}`}
          >
            <div className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${isCompatMode ? 'translate-x-6' : 'translate-x-0.5'}`} />
          </button>
        </div>

        {Object.entries(settings.directory || {}).map(([key, value]) => (
          <div key={key} className={`p-4 flex items-center justify-between transition-opacity ${isCompatMode ? 'opacity-40' : ''}`}>
            <label className="text-sm text-neutral-500">
              {key.replace(/_/g, ' ').replace(/\b\w/g, l => l.toUpperCase())}
            </label>
            {value === 0 || value === 1 ? (
              <button
                onClick={() => { if (!isCompatMode) updateSetting(['settings', 'directory', key], value ? 0 : 1); }}
                className={`relative w-12 h-6 rounded-full transition-colors ${value ? 'bg-blue-600' : 'bg-neutral-300'} ${isCompatMode ? 'cursor-not-allowed' : ''}`}
              >
                <div className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${value ? 'translate-x-6' : 'translate-x-0.5'}`} />
              </button>
            ) : (
              <input
                type="number"
                value={value}
                disabled={isCompatMode}
                onChange={(e) => updateSetting(['settings', 'directory', key], parseInt(e.target.value))}
                className="w-24 px-3 py-1 border border-neutral-300 rounded-lg text-right disabled:cursor-not-allowed"
              />
            )}
          </div>
        ))}
      </div>

      <h2 className="text-sm text-neutral-500 pt-4 flex items-center gap-2"><Zap className="w-4 h-4" /> Hardware Fastloaders</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        <div className="p-3 bg-neutral-50">
          <h3 className="text-xs text-neutral-600">Serial</h3>
        </div>
        {Object.entries(settings.fastloaders?.hardware?.serial || {}).map(([key, value]) => (
          <div key={key} className="p-4 flex items-center justify-between">
            <label className="text-sm text-neutral-500">
              {key.replace(/_/g, ' ').replace(/\b\w/g, l => l.toUpperCase())}
            </label>
            <button
              onClick={() => updateSetting(['settings', 'fastloaders', 'hardware', 'serial', key], value ? 0 : 1)}
              className={`relative w-12 h-6 rounded-full transition-colors ${
                value ? 'bg-blue-600' : 'bg-neutral-300'
              }`}
            >
              <div
                className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                  value ? 'translate-x-6' : 'translate-x-0.5'
                }`}
              />
            </button>
          </div>
        ))}

        <div className="p-3 bg-neutral-50">
          <h3 className="text-xs text-neutral-600">Parallel</h3>
        </div>
        {Object.entries(settings.fastloaders?.hardware?.parallel || {}).map(([key, value]) => (
          <div key={key} className="p-4 flex items-center justify-between">
            <label className="text-sm text-neutral-500">
              {key.replace(/_/g, ' ').replace(/\b\w/g, l => l.toUpperCase())}
            </label>
            <button
              onClick={() => updateSetting(['settings', 'fastloaders', 'hardware', 'parallel', key], value ? 0 : 1)}
              className={`relative w-12 h-6 rounded-full transition-colors ${
                value ? 'bg-blue-600' : 'bg-neutral-300'
              }`}
            >
              <div
                className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                  value ? 'translate-x-6' : 'translate-x-0.5'
                }`}
              />
            </button>
          </div>
        ))}
      </div>

      <h2 className="text-sm text-neutral-500 pt-4 flex items-center gap-2"><Code2 className="w-4 h-4" /> Software Fastloaders</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        {Object.entries(settings.fastloaders?.software || {}).map(([key, value]) => (
          <div key={key} className="p-4 flex items-center justify-between">
            <label className="text-sm text-neutral-500">
              {key.replace(/_/g, ' ').replace(/\b\w/g, l => l.toUpperCase())}
            </label>
            <button
              onClick={() => updateSetting(['settings', 'fastloaders', 'software', key], value ? 0 : 1)}
              className={`relative w-12 h-6 rounded-full transition-colors ${
                value ? 'bg-blue-600' : 'bg-neutral-300'
              }`}
            >
              <div
                className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                  value ? 'translate-x-6' : 'translate-x-0.5'
                }`}
              />
            </button>
          </div>
        ))}
      </div>

      <h2 className="text-sm text-neutral-500 pt-4 flex items-center gap-2"><Link className="w-4 h-4" /> Chainloaders</h2>

      <div className="bg-white border border-neutral-200 rounded-lg divide-y divide-neutral-200">
        {Object.entries(settings.chainloaders || {}).map(([key, value]) => (
          <div key={key} className="p-4 flex items-center justify-between">
            <label className="text-sm text-neutral-500">
              {key.toUpperCase()}
            </label>
            <button
              onClick={() => updateSetting(['settings', 'chainloaders', key], value ? 0 : 1)}
              className={`relative w-12 h-6 rounded-full transition-colors ${
                value ? 'bg-blue-600' : 'bg-neutral-300'
              }`}
            >
              <div
                className={`absolute top-0.5 w-5 h-5 bg-white rounded-full transition-transform ${
                  value ? 'translate-x-6' : 'translate-x-0.5'
                }`}
              />
            </button>
          </div>
        ))}
      </div>
    </div>
  );
}