import { Globe, Tag, Clock } from "lucide-react";
import { Conference } from "@/types/conference";
import { isValid, isPast } from "date-fns";
import ConferenceDialog from "./ConferenceDialog";
import CountdownTimer from "./CountdownTimer";
import { useState } from "react";
import { getDeadlineInLocalTime } from '@/utils/dateUtils';

const ConferenceCard = ({
  title,
  full_name,
  year,
  date,
  deadline,
  timezone,
  tags = [],
  link,
  note,
  abstract_deadline,
  city,
  country,
  venue,
  ...conferenceProps
}: Conference) => {
  const [dialogOpen, setDialogOpen] = useState(false);
  const deadlineDate = getDeadlineInLocalTime(deadline, timezone);
  
  // Create location string by concatenating city and country
  const location = [city, country].filter(Boolean).join(", ");

  const handleCardClick = (e: React.MouseEvent) => {
    if (!(e.target as HTMLElement).closest('a') && 
        !(e.target as HTMLElement).closest('.tag-button')) {
      setDialogOpen(true);
    }
  };

  const handleTagClick = (e: React.MouseEvent, tag: string) => {
    e.stopPropagation();
    const searchParams = new URLSearchParams(window.location.search);
    const currentTags = searchParams.get('tags')?.split(',') || [];
    
    let newTags;
    if (currentTags.includes(tag)) {
      newTags = currentTags.filter(t => t !== tag);
    } else {
      newTags = [...currentTags, tag];
    }
    
    if (newTags.length > 0) {
      searchParams.set('tags', newTags.join(','));
    } else {
      searchParams.delete('tags');
    }
    
    const newUrl = `${window.location.pathname}${searchParams.toString() ? `?${searchParams.toString()}` : ''}`;
    window.history.pushState({}, '', newUrl);
    window.dispatchEvent(new CustomEvent('urlchange', { detail: { tag } }));
  };

  return (
    <>
      <div 
        className="bg-white rounded-lg shadow-sm hover:shadow-md transition-shadow p-4 flex flex-col cursor-pointer"
        onClick={handleCardClick}
      >
        <div className="flex justify-between items-start mb-2">
          <div className="flex-1">
            <h3 className="text-lg font-semibold text-primary">
              {title} {year}
              {link && (
                <a 
                  href={link}
                  target="_blank"
                  rel="noopener noreferrer" 
                  className="ml-2 hover:underline"
                  onClick={(e) => e.stopPropagation()}
                >
                  <Globe className="h-4 w-4 inline flex-shrink-0" />
                </a>
              )}
            </h3>
            <CountdownTimer 
              deadline={deadlineDate} 
              className="mt-1"
            />
            {full_name && (
              <p className="text-sm text-gray-600 mt-1">
                {full_name}
              </p>
            )}
            <div className="mt-2 text-sm text-gray-600">
              {date}. {location}
            </div>
            {note && (
              <div className="text-xs text-gray-500 mt-1">
                Note: {note.replace(/<[^>]*>/g, '')}
              </div>
            )}
            <div className="flex items-center text-gray-600 mt-2">
              <Clock className="h-4 w-4 mr-2 flex-shrink-0" />
              <span className="text-sm">
                Deadline: {deadline === 'TBD' ? 'TBD' : deadlineDate?.toLocaleString('en-US', {
                  weekday: 'short',
                  year: 'numeric',
                  month: 'short',
                  day: 'numeric',
                  hour: '2-digit',
                  minute: '2-digit',
                  timeZoneName: 'short'
                })}
              </span>
            </div>
          </div>
        </div>
        
        <div className="flex flex-col gap-2 mb-3">

        </div>

        {Array.isArray(tags) && tags.length > 0 && (
          <div className="flex flex-wrap gap-2">
            {tags.map((tag) => (
              <button
                key={tag}
                className="tag tag-button"
                onClick={(e) => handleTagClick(e, tag)}
              >
                <Tag className="h-3 w-3 mr-1" />
                {tag}
              </button>
            ))}
          </div>
        )}
      </div>

      <ConferenceDialog
        conference={{
          title,
          full_name,
          year,
          date,
          deadline,
          timezone,
          tags,
          link,
          note,
          abstract_deadline,
          city,
          country,
          venue,
          ...conferenceProps
        }}
        open={dialogOpen}
        onOpenChange={setDialogOpen}
      />
    </>
  );
};

export default ConferenceCard;
