import { useMemo } from 'react';
import { Card, CardContent } from '@/components/ui/card';
import { 
  Zap, 
  Camera, 
  FileText, 
  MapPin, 
  Phone, 
  Clock,
  Check,
  Circle,
} from 'lucide-react';
import { cn } from '@/lib/utils';
import { useTranslation } from '@/contexts/language';

export interface QualityCheckItem {
  id: string;
  label: string;
  description?: string;
  points: number;
  completed: boolean;
  icon: React.ComponentType<{ className?: string }>;
}

interface QualityMeterProps {
  type: 'spot' | 'shop';
  // Form state checks
  hasLocation: boolean;
  hasPhotos: boolean;
  photoCount: number;
  hasDescription: boolean;
  descriptionLength: number;
  // Shop-specific
  hasPhone?: boolean;
  hasWebsite?: boolean;
  hasHours?: boolean;
  // Spot-specific
  hasSpotType?: boolean;
  className?: string;
}

export function QualityMeter({
  type,
  hasLocation,
  hasPhotos,
  photoCount,
  hasDescription,
  descriptionLength,
  hasPhone,
  hasWebsite,
  hasHours,
  hasSpotType,
  className,
}: QualityMeterProps) {
  const { t } = useTranslation();
  const checks = useMemo(() => {
    const items: QualityCheckItem[] = [
      {
        id: 'location',
        label: t('miscUi.qualityLocationAdded'),
        points: 20,
        completed: hasLocation,
        icon: MapPin,
      },
      {
        id: 'photo1',
        label: t('miscUi.qualityOnePhoto'),
        points: 20,
        completed: hasPhotos,
        icon: Camera,
      },
      {
        id: 'photo3',
        label: t('miscUi.qualityThreePhotos'),
        description: t('miscUi.qualityMoreAngles'),
        points: 15,
        completed: photoCount >= 3,
        icon: Camera,
      },
      {
        id: 'description',
        label: t('miscUi.qualityDescription'),
        points: 15,
        completed: hasDescription && descriptionLength >= 20,
        icon: FileText,
      },
      {
        id: 'description-detailed',
        label: t('miscUi.qualityDetailedDesc'),
        points: 10,
        completed: descriptionLength >= 100,
        icon: FileText,
      },
    ];

    if (type === 'shop') {
      items.push(
        {
          id: 'contact',
          label: t('miscUi.qualityContact'),
          description: t('miscUi.qualityPhoneOrWebsite'),
          points: 10,
          completed: !!hasPhone || !!hasWebsite,
          icon: Phone,
        },
        {
          id: 'hours',
          label: t('miscUi.qualityHours'),
          points: 10,
          completed: !!hasHours,
          icon: Clock,
        }
      );
    } else {
      items.push({
        id: 'spot-type',
        label: t('miscUi.qualitySpotType'),
        points: 10,
        completed: !!hasSpotType,
        icon: MapPin,
      });
    }

    return items;
  }, [type, hasLocation, hasPhotos, photoCount, hasDescription, descriptionLength, hasPhone, hasWebsite, hasHours, hasSpotType, t]);

  const { score, maxScore } = useMemo(() => {
    const completed = checks.filter(c => c.completed);
    const total = checks.reduce((sum, c) => sum + c.points, 0);
    const current = completed.reduce((sum, c) => sum + c.points, 0);
    return {
      score: current,
      maxScore: total,
      completedItems: completed.length,
      totalItems: checks.length,
    };
  }, [checks]);

  const percentage = Math.round((score / maxScore) * 100);

  const getScoreColor = () => {
    if (percentage >= 80) return 'text-green-400';
    if (percentage >= 50) return 'text-[#ccff00]';
    if (percentage >= 30) return 'text-yellow-400';
    return 'text-orange-400';
  };

  const getProgressColor = () => {
    if (percentage >= 80) return 'bg-green-500';
    if (percentage >= 50) return 'bg-[#ccff00]';
    if (percentage >= 30) return 'bg-yellow-500';
    return 'bg-orange-500';
  };

  const getScoreLabel = () => {
    if (percentage >= 80) return t('miscUi.qualityExcellent');
    if (percentage >= 50) return t('miscUi.qualityGood');
    if (percentage >= 30) return t('miscUi.qualityBasic');
    return t('miscUi.qualityGettingStarted');
  };

  return (
    <Card className={cn('bg-gradient-to-br from-[#ccff00]/5 to-transparent border-[#ccff00]/20', className)}>
      <CardContent className="p-4">
        <div className="flex items-center justify-between mb-3">
          <div className="flex items-center gap-2">
            <Zap className="h-4 w-4 text-[#ccff00]" />
            <span className="text-sm font-bold uppercase text-gray-300">{t('miscUi.earningPotential')}</span>
          </div>
          <div className="flex items-center gap-2">
            <span className={cn('text-sm font-bold', getScoreColor())}>
              {getScoreLabel()}
            </span>
            <span className="text-xs text-gray-500">
              {percentage}%
            </span>
          </div>
        </div>

        {/* Progress Bar */}
        <div className="relative h-3 bg-gray-800 rounded-full overflow-hidden mb-4">
          <div 
            className={cn('h-full transition-all duration-500 ease-out rounded-full', getProgressColor())}
            style={{ width: `${percentage}%` }}
          />
        </div>

        {/* Checklist */}
        <div className="space-y-2">
          {checks.map((check) => {
            const Icon = check.icon;
            return (
              <div 
                key={check.id}
                className={cn(
                  'flex items-center gap-2 text-xs transition-all',
                  check.completed ? 'text-green-400' : 'text-gray-500'
                )}
              >
                <div className="flex-shrink-0">
                  {check.completed ? (
                    <Check className="h-3.5 w-3.5" />
                  ) : (
                    <Circle className="h-3.5 w-3.5" />
                  )}
                </div>
                <Icon className="h-3 w-3 flex-shrink-0" />
                <span className={check.completed ? 'line-through opacity-70' : ''}>
                  {check.label}
                </span>
                <span className={cn(
                  'ml-auto text-[10px] font-bold',
                  check.completed ? 'text-green-400' : 'text-gray-600'
                )}>
                  +{check.points}%
                </span>
              </div>
            );
          })}
        </div>

        {/* Tip */}
        <div className="mt-4 pt-3 border-t border-gray-800">
          <p className="text-[10px] text-gray-500">
            💡 Higher quality = More zaps from the community!
          </p>
        </div>
      </CardContent>
    </Card>
  );
}