'use client';

import { useState } from 'react';
import { TabsTrigger } from '@/components/ui/tabs';
import { Separator } from '@/components/ui/separator';
import { Tooltip, TooltipContent, TooltipProvider, TooltipTrigger } from '@/components/ui/tooltip';
import { 
  Mountain, 
  Sparkles, 
  Brain, 
  Wand2, 
  Bone, 
  Shield, 
  Hammer, 
  Gem, 
  Trophy, 
  FlaskConical, 
  BarChart3, 
  BookOpen, 
  Wrench
} from 'lucide-react';

interface TabBarProps {
  activeTab: string;
  onTabChange: (value: string) => void;
  isMobile?: boolean;
}

// Tab configuration with groups
const TAB_GROUPS = [
  {
    name: 'World',
    tabs: [
      { value: 'spire', label: 'Spire', icon: Mountain, mobileLabel: 'Spire' },
      { value: 'attunements', label: 'Attune', icon: Sparkles, mobileLabel: 'Attune' },
    ]
  },
  {
    name: 'Power',
    tabs: [
      { value: 'skills', label: 'Skills', icon: Brain, mobileLabel: 'Skills' },
      { value: 'spells', label: 'Spells', icon: Wand2, mobileLabel: 'Spells' },
      { value: 'golemancy', label: 'Golems', icon: Bone, mobileLabel: 'Golems' },
    ]
  },
  {
    name: 'Gear',
    tabs: [
      { value: 'equipment', label: 'Gear', icon: Shield, mobileLabel: 'Gear' },
      { value: 'crafting', label: 'Craft', icon: Hammer, mobileLabel: 'Craft' },
      { value: 'loot', label: 'Loot', icon: Gem, mobileLabel: 'Loot' },
    ]
  },
  {
    name: 'Meta',
    tabs: [
      { value: 'achievements', label: 'Achieve', icon: Trophy, mobileLabel: 'Achieve' },
      { value: 'lab', label: 'Lab', icon: FlaskConical, mobileLabel: 'Lab' },
      { value: 'stats', label: 'Stats', icon: BarChart3, mobileLabel: 'Stats' },
      { value: 'grimoire', label: 'Grimoire', icon: BookOpen, mobileLabel: 'Grimoire' },
      { value: 'debug', label: 'Debug', icon: Wrench, mobileLabel: 'Debug' },
    ]
  }
];

export function TabBar({ activeTab, onTabChange, isMobile = false }: TabBarProps) {
  const [longPressTimer, setLongPressTimer] = useState<NodeJS.Timeout | null>(null);

  const handleLongPressStart = (value: string) => {
    const timer = setTimeout(() => {
      // Show tooltip on long press for mobile
      onTabChange(value);
    }, 500);
    setLongPressTimer(timer);
  };

  const handleLongPressEnd = () => {
    if (longPressTimer) {
      clearTimeout(longPressTimer);
      setLongPressTimer(null);
    }
  };

  if (isMobile) {
    return (
      <TooltipProvider>
        <div className="flex overflow-x-auto scrollbar-thin gap-1 pb-2" style={{ flexWrap: 'nowrap' }}>
          {TAB_GROUPS.map((group, groupIndex) => (
            <div key={group.name} className="flex items-center flex-shrink-0">
              {groupIndex > 0 && (
                <Separator orientation="vertical" className="h-6 mx-1 bg-[var(--border-subtle)]" />
              )}
              {group.tabs.map((tab) => {
                const Icon = tab.icon;
                const isActive = activeTab === tab.value;
                return (
                  <Tooltip key={tab.value}>
                    <TooltipTrigger asChild>
                      <button
                        onClick={() => onTabChange(tab.value)}
                        onMouseDown={() => handleLongPressStart(tab.value)}
                        onMouseUp={handleLongPressEnd}
                        onMouseLeave={handleLongPressEnd}
                        onTouchStart={() => handleLongPressStart(tab.value)}
                        onTouchEnd={handleLongPressEnd}
                        className={`
                          flex items-center justify-center p-2 rounded-lg transition-all flex-shrink-0
                          ${isActive 
                            ? 'bg-[var(--interactive-primary)] text-white shadow-lg shadow-[var(--interactive-primary)]/20' 
                            : 'text-[var(--text-secondary)] hover:text-[var(--text-primary)] hover:bg-[var(--bg-elevated)]'
                          }
                        `}
                        aria-label={tab.label}
                      >
                        <Icon className="w-5 h-5" />
                      </button>
                    </TooltipTrigger>
                    <TooltipContent side="bottom">
                      <p>{tab.label}</p>
                    </TooltipContent>
                  </Tooltip>
                );
              })}
            </div>
          ))}
        </div>
      </TooltipProvider>
    );
  }

  // Desktop view - grouped tabs with separators
  return (
    <div className="flex items-center gap-1 w-full" style={{ flexWrap: 'nowrap' }}>
      {TAB_GROUPS.map((group, groupIndex) => (
        <div key={group.name} className="flex items-center flex-shrink-0">
          {groupIndex > 0 && (
            <Separator orientation="vertical" className="h-6 mx-2 bg-[var(--border-subtle)]" />
          )}
          {group.tabs.map((tab) => {
            const isActive = activeTab === tab.value;
            return (
              <TabsTrigger
                key={tab.value}
                value={tab.value}
                className={`
                  text-xs px-3 py-1.5 relative transition-all whitespace-nowrap
                  ${isActive 
                    ? 'text-[var(--interactive-primary)] font-semibold' 
                    : 'text-[var(--text-secondary)] hover:text-[var(--text-primary)]'
                  }
                `}
                style={isActive ? {
                  borderBottom: '2px solid var(--interactive-primary)',
                  textShadow: '0 0 8px var(--interactive-primary)',
                } : {}}
              >
                {tab.label}
              </TabsTrigger>
            );
          })}
        </div>
      ))}
    </div>
  );
}

TabBar.displayName = "TabBar";