import React, { useState, useRef, useEffect } from 'react';
import { SyncStrategy, RegexReplacement, SyncState, ScheduleSettings, ScheduleMode } from '../types';
import { 
  ArrowRightCircle, 
  ArrowLeftCircle, 
  GitMerge, 
  ChevronDown,
  Check,
  HelpCircle,
  Plus,
  Trash2,
  Save,
  RotateCcw,
  Zap,
  Loader2,
  Calendar,
  Clock,
  Repeat,
  CheckSquare,
  Square
} from 'lucide-react';

interface StrategyOption {
  value: SyncStrategy;
  label: string;
  description: string;
  icon: React.ElementType;
  color: string;
}

const STRATEGIES: StrategyOption[] = [
  {
    value: SyncStrategy.LOCAL_OVERWRITE,
    label: 'Local Overwrite',
    description: 'Local playlist completely overwrites Cloud. (No Diff)',
    icon: ArrowRightCircle,
    color: 'text-blue-400'
  },
  {
    value: SyncStrategy.CLOUD_OVERWRITE,
    label: 'Cloud Overwrite',
    description: 'Cloud playlist completely overwrites Local. (No Diff)',
    icon: ArrowLeftCircle,
    color: 'text-green-400'
  },
  {
    value: SyncStrategy.MERGE_LOCAL,
    label: 'Two-way Merge (Local Priority)',
    description: 'Merge both. Conflicts resolve to Local version.',
    icon: GitMerge,
    color: 'text-blue-300'
  },
  {
    value: SyncStrategy.MERGE_CLOUD,
    label: 'Two-way Merge (Cloud Priority)',
    description: 'Merge both. Conflicts resolve to Cloud version.',
    icon: GitMerge,
    color: 'text-green-300'
  }
];

const WEEK_DAYS = ['S', 'M', 'T', 'W', 'T', 'F', 'S'];

interface StrategySelectorProps {
  currentStrategy: SyncStrategy;
  onSelect: (strategy: SyncStrategy, label: string) => void;
  savedRegexReplacements: RegexReplacement[];
  onSaveRegex: (replacements: RegexReplacement[]) => void;
  savedSchedule: ScheduleSettings;
  onSaveSchedule: (settings: ScheduleSettings) => Promise<boolean>;
  syncState: SyncState;
  onSync: () => void;
}

const StrategySelector: React.FC<StrategySelectorProps> = ({ 
  currentStrategy, 
  onSelect, 
  savedRegexReplacements, 
  onSaveRegex,
  savedSchedule,
  onSaveSchedule,
  syncState,
  onSync
}) => {
  const [isOpen, setIsOpen] = useState(false);
  const dropdownRef = useRef<HTMLDivElement>(null);

  // Local state for regex editing
  const [localReplacements, setLocalReplacements] = useState<RegexReplacement[]>([]);
  const [isRegexDirty, setIsRegexDirty] = useState(false);

  // Local state for Schedule editing
  const [localSchedule, setLocalSchedule] = useState<ScheduleSettings>(savedSchedule);
  const [isScheduleDirty, setIsScheduleDirty] = useState(false);
  
  // UI State for Schedule Tabs
  // We initialize active tab based on the saved mode. If DISABLED, default to CRON.
  const [activeTab, setActiveTab] = useState<ScheduleMode>(
    savedSchedule.mode === ScheduleMode.DISABLED ? ScheduleMode.CRON : savedSchedule.mode
  );

  const isSyncing = syncState === SyncState.SYNCING;
  const isLocked = isSyncing || syncState === SyncState.SUCCESS;

  // Initialize local state when prop updates
  useEffect(() => {
    setLocalReplacements(JSON.parse(JSON.stringify(savedRegexReplacements)));
    setIsRegexDirty(false);
  }, [savedRegexReplacements]);

  useEffect(() => {
    setLocalSchedule(JSON.parse(JSON.stringify(savedSchedule)));
    // If the saved mode is not disabled, ensure we show that tab.
    if (savedSchedule.mode !== ScheduleMode.DISABLED) {
      setActiveTab(savedSchedule.mode);
    }
    setIsScheduleDirty(false);
  }, [savedSchedule]);

  // Check dirty state whenever local changes
  useEffect(() => {
    const isDifferent = JSON.stringify(localReplacements) !== JSON.stringify(savedRegexReplacements);
    setIsRegexDirty(isDifferent);
  }, [localReplacements, savedRegexReplacements]);

  useEffect(() => {
    const isDifferent = JSON.stringify(localSchedule) !== JSON.stringify(savedSchedule);
    setIsScheduleDirty(isDifferent);
  }, [localSchedule, savedSchedule]);

  const selectedOption = STRATEGIES.find(s => s.value === currentStrategy) || STRATEGIES[0];

  useEffect(() => {
    const handleClickOutside = (event: MouseEvent) => {
      if (dropdownRef.current && !dropdownRef.current.contains(event.target as Node)) {
        setIsOpen(false);
      }
    };
    document.addEventListener('mousedown', handleClickOutside);
    return () => document.removeEventListener('mousedown', handleClickOutside);
  }, []);

  const handleSelect = (strategy: StrategyOption) => {
    if (isLocked) return;
    onSelect(strategy.value, strategy.label);
  };

  // --- Regex Handlers ---
  const handleAddRegex = () => {
    if (isLocked) return;
    const newId = Date.now().toString();
    setLocalReplacements(prev => [...prev, { id: newId, pattern: '', replacement: '' }]);
  };

  const handleDeleteRegex = (id: string) => {
    if (isLocked) return;
    setLocalReplacements(prev => prev.filter(r => r.id !== id));
  };

  const handleUpdateRegex = (id: string, field: 'pattern' | 'replacement', value: string) => {
    if (isLocked) return;
    setLocalReplacements(prev => prev.map(r => 
      r.id === id ? { ...r, [field]: value } : r
    ));
  };

  const handleResetRegex = () => {
    if (isLocked) return;
    setLocalReplacements(JSON.parse(JSON.stringify(savedRegexReplacements)));
  };

  const handleSaveRegex = () => {
    if (isLocked) return;
    const validReplacements = localReplacements.filter(r => r.pattern.trim() !== '');
    setLocalReplacements(validReplacements);
    onSaveRegex(validReplacements);
  };

  // --- Schedule Handlers ---
  const handleUpdateSchedule = (field: keyof ScheduleSettings, value: any) => {
    if (isLocked) return;
    setLocalSchedule(prev => ({ ...prev, [field]: value }));
  };

  const toggleWeekDay = (dayIndex: number) => {
    if (isLocked) return;
    const currentDays = localSchedule.weeklyDays;
    const newDays = currentDays.includes(dayIndex)
      ? currentDays.filter(d => d !== dayIndex)
      : [...currentDays, dayIndex].sort();
    handleUpdateSchedule('weeklyDays', newDays);
  };

  const handleResetSchedule = () => {
    if (isLocked) return;
    setLocalSchedule(JSON.parse(JSON.stringify(savedSchedule)));
    if (savedSchedule.mode !== ScheduleMode.DISABLED) {
      setActiveTab(savedSchedule.mode);
    }
  };

  const handleSaveScheduleClick = async () => {
    if (isLocked) return;
    
    let settingsToSave = { ...localSchedule };

    // Logic to determine mode based on active Tab and checkbox state
    if (activeTab === ScheduleMode.CRON) {
        if (settingsToSave.cronExpression.trim() !== '') {
            settingsToSave.mode = ScheduleMode.CRON;
        } else {
            // Empty cron -> disabled
            settingsToSave.mode = ScheduleMode.DISABLED;
        }
    } 
    
    // For Daily/Weekly, enforce: Save commits what is seen in the active tab.
    if (activeTab !== ScheduleMode.CRON) {
       // If the mode matches the active tab, it's enabled. Otherwise disabled.
       if (localSchedule.mode !== activeTab) {
           settingsToSave.mode = ScheduleMode.DISABLED;
       }
    }
    
    // Call API
    const success = await onSaveSchedule(settingsToSave);
    if (success) {
      setLocalSchedule(settingsToSave);
      setIsScheduleDirty(false);
    }
  };

  const handleSyncClick = () => {
    if (isLocked) return;
    onSync();
  };

  // Helper to toggle enable/disable for current active tab (Daily/Weekly)
  const toggleScheduleEnable = (targetMode: ScheduleMode) => {
      if (isLocked) return;
      if (localSchedule.mode === targetMode) {
          handleUpdateSchedule('mode', ScheduleMode.DISABLED);
      } else {
          handleUpdateSchedule('mode', targetMode);
      }
  };

  // If syncing or locked, apply grayscale filter to content sections
  const contentClass = isLocked ? "opacity-50 pointer-events-none grayscale transition-all" : "transition-all";

  return (
    <div className="relative group" ref={dropdownRef}>
      {/* Trigger Button */}
      <button
        onClick={() => setIsOpen(!isOpen)}
        className="flex items-center justify-center w-12 h-12 rounded-full bg-gray-800/90 border border-gray-600 hover:border-plex-orange text-gray-300 hover:text-white hover:bg-gray-700/80 transition-all shadow-2xl hover:shadow-plex-orange/30 ring-[6px] md:ring-8 ring-gray-900 backdrop-blur-sm active:scale-95"
        title={`Current Strategy: ${selectedOption.label}`}
      >
        <selectedOption.icon size={22} className={selectedOption.color} strokeWidth={2.5} />
        <div className="absolute -bottom-1 -right-1 bg-gray-900 rounded-full border border-gray-600 p-[2px] shadow-sm">
            <ChevronDown size={10} className="text-gray-400" />
        </div>
      </button>

      {/* Dropdown Menu */}
      <div 
        className={`absolute 
          top-14 
          /* Mobile: Open to left */
          right-0 origin-top-right
          /* Desktop: Center alignment */
          md:left-1/2 md:right-auto md:origin-top md:-translate-x-1/2 
          
          w-80 md:w-[32rem] bg-gray-800/95 border border-white/10 rounded-xl shadow-2xl z-50 overflow-hidden backdrop-blur-xl
          transition-all duration-200 ease-out
          ${isOpen ? 'opacity-100 scale-100 visible translate-y-0' : 'opacity-0 scale-95 invisible pointer-events-none -translate-y-2'}`}
      >
        <div className={`flex flex-col max-h-[75vh] md:max-h-[85vh] overflow-y-auto custom-scrollbar ${contentClass}`}>
            
            {/* Section 1: Sync Strategy */}
            <div className="px-4 py-3 bg-black/20 border-b border-white/5 flex-none">
            <h3 className="text-[10px] font-bold text-gray-500 uppercase tracking-widest mb-2">Sync Strategy</h3>
            <div className="space-y-1">
                {STRATEGIES.map((strategy) => (
                <div
                    key={strategy.value}
                    onClick={() => handleSelect(strategy)}
                    className={`group flex items-center justify-between p-2 rounded-lg cursor-pointer transition-all border ${
                    currentStrategy === strategy.value 
                        ? 'bg-white/10 border-white/10 shadow-sm' 
                        : 'hover:bg-white/5 border-transparent'
                    }`}
                >
                    <div className="flex items-center space-x-3 overflow-hidden">
                    <strategy.icon size={18} className={strategy.color} />
                    <span className={`text-sm font-medium truncate ${currentStrategy === strategy.value ? 'text-white' : 'text-gray-300 group-hover:text-white'}`}>
                        {strategy.label}
                    </span>
                    </div>
                    
                    <div className="flex items-center space-x-2">
                    <div className="relative group/tooltip">
                        <HelpCircle size={14} className="text-gray-600 hover:text-gray-400 transition-colors" />
                        <div className="absolute right-0 bottom-full mb-2 w-48 p-2.5 bg-gray-900 text-xs text-gray-300 rounded-lg shadow-xl border border-gray-700 pointer-events-none opacity-0 group-hover/tooltip:opacity-100 transition-opacity z-50">
                            {strategy.description}
                        </div>
                    </div>
                    
                    {currentStrategy === strategy.value && (
                        <Check size={14} className="text-plex-orange" strokeWidth={3} />
                    )}
                    </div>
                </div>
                ))}
            </div>
            </div>

            {/* Section 2: Regex Preprocessing */}
            <div className="p-4 bg-gray-900/40 border-b border-white/5 flex-none">
                <div className="flex items-center justify-between mb-3">
                    <h3 className="text-[10px] font-bold text-gray-500 uppercase tracking-widest">Regex Rules</h3>
                    {localReplacements.length === 0 && (
                        <button 
                        onClick={handleAddRegex}
                        className="p-1 rounded bg-gray-700/50 hover:bg-gray-600 text-gray-400 hover:text-white transition-colors"
                        title="Add Rule"
                        >
                        <Plus size={14} />
                        </button>
                    )}
                </div>

                <div className="space-y-2 mb-4 max-h-40 overflow-y-auto pr-1 custom-scrollbar">
                {localReplacements.length === 0 ? (
                    <div className="text-xs text-gray-600 italic text-center py-2 border border-dashed border-gray-700/50 rounded-lg">
                        No regex replacements configured.
                    </div>
                ) : (
                    localReplacements.map((regex) => (
                    <div key={regex.id} className="flex items-center space-x-2 animate-in slide-in-from-left-2 duration-200">
                        <div className="flex-1 min-w-0">
                            <input 
                                type="text" 
                                placeholder="Pattern" 
                                value={regex.pattern}
                                onChange={(e) => handleUpdateRegex(regex.id, 'pattern', e.target.value)}
                                className={`w-full bg-gray-900/80 border rounded-md px-2 py-1.5 text-xs text-gray-200 focus:outline-none focus:ring-1 transition-all placeholder-gray-600
                                ${!regex.pattern && isRegexDirty ? 'border-red-500/30 focus:border-red-500' : 'border-gray-700 focus:border-plex-orange'}`}
                            />
                        </div>
                        <div className="flex-none text-gray-600">
                            <ArrowRightCircle size={12} />
                        </div>
                        <div className="flex-1 min-w-0">
                            <input 
                                type="text" 
                                placeholder="Replacement" 
                                value={regex.replacement}
                                onChange={(e) => handleUpdateRegex(regex.id, 'replacement', e.target.value)}
                                className="w-full bg-gray-900/80 border border-gray-700 rounded-md px-2 py-1.5 text-xs text-gray-200 focus:outline-none focus:border-plex-orange focus:ring-1 focus:ring-plex-orange transition-all placeholder-gray-600"
                            />
                        </div>
                        <button 
                            onClick={() => handleDeleteRegex(regex.id)}
                            className="text-gray-600 hover:text-red-400 p-1.5 hover:bg-red-500/10 rounded transition-colors"
                            title="Delete Rule"
                        >
                            <Trash2 size={14} />
                        </button>
                    </div>
                    ))
                )}
                </div>

                <div className="flex justify-between items-center gap-2">
                     <button 
                            onClick={handleAddRegex}
                            className={`flex items-center space-x-1 px-2 py-1 rounded text-[10px] font-bold uppercase tracking-wide transition-colors ${localReplacements.length > 0 ? 'text-plex-orange hover:bg-plex-orange/10' : 'hidden'}`}
                        >
                            <Plus size={10} />
                            <span>Add</span>
                    </button>

                    <div className="flex items-center gap-2 ml-auto">
                        <button
                            onClick={handleResetRegex}
                            disabled={!isRegexDirty}
                            className={`flex items-center justify-center space-x-1.5 px-3 py-1.5 rounded-md text-xs font-medium border transition-all
                            ${isRegexDirty 
                                ? 'bg-gray-800 border-gray-600 text-gray-300 hover:bg-gray-700 hover:text-white' 
                                : 'bg-transparent border-transparent text-gray-700 cursor-not-allowed'}`}
                        >
                            <RotateCcw size={12} />
                            <span>Revert</span>
                        </button>
                        <button
                            onClick={handleSaveRegex}
                            disabled={!isRegexDirty}
                            className={`flex items-center justify-center space-x-1.5 px-3 py-1.5 rounded-md text-xs font-bold border transition-all
                            ${isRegexDirty 
                                ? 'bg-plex-orange border-plex-orange text-gray-900 hover:bg-yellow-500 shadow-lg shadow-plex-orange/10' 
                                : 'bg-gray-800/30 border-gray-800/50 text-gray-600 cursor-not-allowed'}`}
                        >
                            <Save size={12} />
                            <span>Save</span>
                        </button>
                    </div>
                </div>
            </div>

            {/* Section 3: Scheduled Tasks */}
            <div className="p-4 bg-gray-900/40 border-b border-white/5 flex-none">
                 <div className="flex items-center justify-between mb-3">
                    <h3 className="text-[10px] font-bold text-gray-500 uppercase tracking-widest">Scheduled Tasks</h3>
                 </div>

                 {/* Tabs */}
                 <div className="flex space-x-1 bg-black/30 p-1 rounded-lg mb-4">
                    {[
                      { id: ScheduleMode.CRON, label: 'Cron', icon: Repeat },
                      { id: ScheduleMode.DAILY, label: 'Daily', icon: Clock },
                      { id: ScheduleMode.WEEKLY, label: 'Weekly', icon: Calendar },
                    ].map((tab) => (
                      <button
                        key={tab.id}
                        onClick={() => setActiveTab(tab.id)}
                        className={`flex-1 flex items-center justify-center space-x-2 py-1.5 rounded-md text-xs font-medium transition-all
                          ${activeTab === tab.id 
                            ? 'bg-gray-700 text-plex-orange shadow-sm' 
                            : 'text-gray-400 hover:text-gray-200 hover:bg-white/5'
                          }`}
                      >
                         <tab.icon size={12} />
                         <span>{tab.label}</span>
                      </button>
                    ))}
                 </div>

                 {/* Tab Content */}
                 <div className="mb-4 min-h-[50px]">
                    {activeTab === ScheduleMode.CRON && (
                      <div className="space-y-2 animate-in fade-in duration-200">
                         <div className="flex items-center space-x-2">
                           <span className="text-gray-500 font-mono text-xs">Cron:</span>
                           <input 
                             type="text" 
                             value={localSchedule.cronExpression}
                             onChange={(e) => handleUpdateSchedule('cronExpression', e.target.value)}
                             placeholder="0 0 * * *"
                             className="flex-1 bg-gray-800 border border-gray-700 rounded-md px-2.5 py-1.5 text-xs text-gray-200 font-mono focus:border-plex-orange focus:outline-none focus:ring-1 focus:ring-plex-orange placeholder-gray-600"
                           />
                         </div>
                         <p className="text-[10px] text-gray-500">
                           Unix-cron format. Leave empty to disable schedule.
                         </p>
                      </div>
                    )}

                    {activeTab === ScheduleMode.DAILY && (
                       <div className="flex flex-col animate-in fade-in duration-200">
                          {/* Top Row: Checkbox + Label */}
                          <div className="flex items-center justify-start space-x-2 mb-2">
                            <button 
                                onClick={() => toggleScheduleEnable(ScheduleMode.DAILY)}
                                className={`transition-colors flex-none ${localSchedule.mode === ScheduleMode.DAILY ? 'text-plex-orange' : 'text-gray-500 hover:text-gray-400'}`}
                                title={localSchedule.mode === ScheduleMode.DAILY ? "Schedule Enabled" : "Schedule Disabled"}
                            >
                                {localSchedule.mode === ScheduleMode.DAILY ? <CheckSquare size={16} /> : <Square size={16} />}
                            </button>
                            <label className="text-xs text-gray-400 font-medium">Run daily at:</label>
                          </div>
                          
                          {/* Bottom Row: Centered Native Time Input */}
                          <div className="flex justify-center mt-2">
                            <input
                              type="time"
                              value={localSchedule.dailyTime}
                              onChange={(e) => handleUpdateSchedule('dailyTime', e.target.value)}
                              disabled={localSchedule.mode !== ScheduleMode.DAILY}
                              className={`bg-gray-800 border border-gray-700 text-white rounded-md px-4 py-2 text-xl font-mono focus:border-plex-orange focus:ring-1 focus:ring-plex-orange focus:outline-none transition-all ${localSchedule.mode !== ScheduleMode.DAILY ? 'opacity-50 cursor-not-allowed' : ''}`}
                            />
                          </div>
                       </div>
                    )}

                    {activeTab === ScheduleMode.WEEKLY && (
                       <div className="flex flex-col animate-in fade-in duration-200">
                          {/* Top Row: Checkbox + Label */}
                          <div className="flex items-center justify-start space-x-2 mb-2">
                              <button 
                                onClick={() => toggleScheduleEnable(ScheduleMode.WEEKLY)}
                                className={`transition-colors flex-none ${localSchedule.mode === ScheduleMode.WEEKLY ? 'text-plex-orange' : 'text-gray-500 hover:text-gray-400'}`}
                                title={localSchedule.mode === ScheduleMode.WEEKLY ? "Schedule Enabled" : "Schedule Disabled"}
                              >
                                  {localSchedule.mode === ScheduleMode.WEEKLY ? <CheckSquare size={16} /> : <Square size={16} />}
                              </button>
                              <label className="text-xs text-gray-400 font-medium">Run on days:</label>
                          </div>

                          {/* Middle Row: Full Width Capsules */}
                          <div className={`grid grid-cols-7 w-full transition-opacity duration-200 mb-3 ${localSchedule.mode !== ScheduleMode.WEEKLY ? 'opacity-50 pointer-events-none' : ''}`}>
                             {WEEK_DAYS.map((day, index) => {
                               const isSelected = localSchedule.weeklyDays.includes(index);
                               return (
                                 <button
                                   key={index}
                                   onClick={() => toggleWeekDay(index)}
                                   className={`h-9 text-xs font-bold border-y border-l last:border-r border-gray-600/50 transition-colors
                                     first:rounded-l-lg last:rounded-r-lg
                                     ${isSelected 
                                       ? 'bg-plex-orange text-gray-900 border-plex-orange z-10' 
                                       : 'bg-gray-800 text-gray-400 hover:bg-gray-700 hover:text-gray-200'
                                     }
                                   `}
                                 >
                                   {day}
                                 </button>
                               )
                             })}
                          </div>
                          
                          {/* Bottom Row: Centered Native Time Input */}
                          <div className="flex justify-center mt-1">
                             <input
                              type="time"
                              value={localSchedule.weeklyTime}
                              onChange={(e) => handleUpdateSchedule('weeklyTime', e.target.value)}
                              disabled={localSchedule.mode !== ScheduleMode.WEEKLY}
                              className={`bg-gray-800 border border-gray-700 text-white rounded-md px-4 py-2 text-xl font-mono focus:border-plex-orange focus:ring-1 focus:ring-plex-orange focus:outline-none transition-all ${localSchedule.mode !== ScheduleMode.WEEKLY ? 'opacity-50 cursor-not-allowed' : ''}`}
                            />
                          </div>
                       </div>
                    )}
                 </div>

                 {/* Auto Watch Checkbox */}
                 <div className="flex items-center mb-4 px-1">
                    <button 
                      onClick={() => handleUpdateSchedule('autoWatch', !localSchedule.autoWatch)}
                      className="flex items-center space-x-2 group"
                    >
                       {localSchedule.autoWatch ? (
                         <CheckSquare size={16} className="text-plex-orange" />
                       ) : (
                         <Square size={16} className="text-gray-600 group-hover:text-gray-400" />
                       )}
                       <span className={`text-xs ${localSchedule.autoWatch ? 'text-gray-200' : 'text-gray-500 group-hover:text-gray-400'}`}>
                         Watch for local playlist changes
                       </span>
                    </button>
                 </div>

                 {/* Action Buttons (Mirrored from Regex) */}
                 <div className="flex items-center gap-2 justify-end pt-3 border-t border-white/5">
                        <button
                            onClick={handleResetSchedule}
                            disabled={!isScheduleDirty}
                            className={`flex items-center justify-center space-x-1.5 px-3 py-1.5 rounded-md text-xs font-medium border transition-all
                            ${isScheduleDirty 
                                ? 'bg-gray-800 border-gray-600 text-gray-300 hover:bg-gray-700 hover:text-white' 
                                : 'bg-transparent border-transparent text-gray-700 cursor-not-allowed'}`}
                        >
                            <RotateCcw size={12} />
                            <span>Revert</span>
                        </button>
                        <button
                            onClick={handleSaveScheduleClick}
                            disabled={!isScheduleDirty}
                            className={`flex items-center justify-center space-x-1.5 px-3 py-1.5 rounded-md text-xs font-bold border transition-all
                            ${isScheduleDirty 
                                ? 'bg-plex-orange border-plex-orange text-gray-900 hover:bg-yellow-500 shadow-lg shadow-plex-orange/10' 
                                : 'bg-gray-800/30 border-gray-800/50 text-gray-600 cursor-not-allowed'}`}
                        >
                            <Save size={12} />
                            <span>Save</span>
                        </button>
                    </div>
            </div>
        </div>

        {/* Section 4: Sync Now Button */}
        <div className="p-4 bg-gray-950/50 border-t border-white/5 flex-none">
            <button
                onClick={handleSyncClick}
                disabled={isLocked}
                className={`w-full py-3 rounded-lg text-sm font-bold flex items-center justify-center gap-2 transition-all shadow-lg
                ${isLocked 
                    ? 'bg-gray-700/30 text-gray-500 cursor-not-allowed border border-gray-700/50' 
                    : isRegexDirty
                        ? 'bg-gray-800 text-gray-500 cursor-not-allowed border border-gray-700'
                        : 'bg-green-600 hover:bg-green-500 text-white border border-green-500 shadow-green-900/20 active:scale-[0.98]'
                }`}
            >
                {isSyncing ? (
                    <>
                        <Loader2 size={16} className="animate-spin" />
                        <span>Sync in Progress...</span>
                    </>
                ) : (
                    <>
                        <Zap size={16} fill="currentColor" />
                        <span>Sync Now</span>
                    </>
                )}
            </button>
            {(isRegexDirty) && (
                <p className="text-[10px] text-plex-orange text-center mt-2">
                    Please save regex changes before syncing.
                </p>
            )}
        </div>
      </div>
    </div>
  );
};

export default StrategySelector;