'use client'

import { memo } from 'react'
import { highlightText } from '@/lib/utils'
import Link from 'next/link'
import { Calendar, Tag, AlertCircle } from 'lucide-react'
import EmptyState from './EmptyState'

interface SearchResultsProps {
  results: Array<{
    id: string
    title: string
    description: string | null
    completed: boolean
    priority: string
    dueDate: Date | null
    tags: any
    notes: string | null
    list: {
      id: string
      title: string
      color: string
    }
  }>
  query: string
  onClose?: () => void
}

function SearchResults({ results, query, onClose }: SearchResultsProps) {
  if (!query.trim()) {
    return null
  }

  if (results.length === 0) {
    return (
      <EmptyState
        icon="search"
        title={`No tasks found matching "${query}"`}
        description="Try a different search term or check your spelling"
      />
    )
  }

  const priorityColors = {
    low: 'bg-green-100 text-green-700 border-green-200',
    medium: 'bg-yellow-100 text-yellow-700 border-yellow-200',
    high: 'bg-red-100 text-red-700 border-red-200',
  }

  return (
    <div className="space-y-2 animate-fade-in">
      <div className="flex items-center justify-between mb-4">
        <p className="text-sm text-gray-600">
          Found {results.length} {results.length === 1 ? 'task' : 'tasks'}
        </p>
      </div>

      {results.map((item) => {
        const tags = Array.isArray(item.tags) ? item.tags : []
        const isOverdue = item.dueDate && new Date(item.dueDate) < new Date() && !item.completed
        const priorityColor = priorityColors[item.priority as keyof typeof priorityColors] || priorityColors.medium

        return (
          <Link
            key={item.id}
            href={`/list/${item.list.id}/item/${item.id}`}
            onClick={onClose}
            className="block bg-white rounded-lg border border-gray-200 p-4 hover:shadow-md transition-shadow"
          >
            {/* List Badge */}
            <div className="flex items-center gap-2 mb-2">
              <div 
                className="w-3 h-3 rounded-full" 
                style={{ backgroundColor: item.list.color }}
              />
              <span className="text-xs text-gray-500">{item.list.title}</span>
            </div>

            {/* Title with highlighting */}
            <h3 
              className={`font-medium mb-1 ${
                item.completed ? 'text-gray-500 line-through' : 'text-gray-900'
              }`}
              dangerouslySetInnerHTML={{ 
                __html: highlightText(item.title, query) 
              }}
            />

            {/* Description with highlighting */}
            {item.description && (
              <p 
                className={`text-sm mb-2 line-clamp-2 ${
                  item.completed ? 'text-gray-400' : 'text-gray-600'
                }`}
                dangerouslySetInnerHTML={{ 
                  __html: highlightText(item.description, query) 
                }}
              />
            )}

            {/* Notes with highlighting (if matches) */}
            {item.notes && item.notes.toLowerCase().includes(query.toLowerCase()) && (
              <p 
                className="text-sm text-gray-500 mb-2 line-clamp-1"
                dangerouslySetInnerHTML={{ 
                  __html: 'Notes: ' + highlightText(item.notes, query) 
                }}
              />
            )}

            {/* Metadata */}
            <div className="flex flex-wrap items-center gap-2 mt-2">
              {/* Priority Badge */}
              <span className={`inline-flex items-center gap-1 px-2 py-1 rounded text-xs font-medium border ${priorityColor}`}>
                <AlertCircle size={12} />
                {item.priority.charAt(0).toUpperCase() + item.priority.slice(1)}
              </span>

              {/* Due Date */}
              {item.dueDate && (
                <span className={`inline-flex items-center gap-1 px-2 py-1 rounded text-xs ${
                  isOverdue 
                    ? 'bg-red-100 text-red-700 border border-red-200 font-semibold' 
                    : 'bg-gray-100 text-gray-700'
                }`}>
                  <Calendar size={12} />
                  {new Date(item.dueDate).toLocaleDateString('en-US', {
                    month: 'short',
                    day: 'numeric',
                  })}
                  {isOverdue && ' (Overdue)'}
                </span>
              )}

              {/* Tags with highlighting */}
              {tags.length > 0 && (
                <div className="inline-flex items-center gap-1">
                  <Tag size={12} className="text-gray-400" />
                  <span 
                    className="text-xs text-gray-600"
                    dangerouslySetInnerHTML={{ 
                      __html: highlightText(tags.slice(0, 2).join(', '), query) 
                    }}
                  />
                  {tags.length > 2 && (
                    <span className="text-xs text-gray-600">
                      {` +${tags.length - 2}`}
                    </span>
                  )}
                </div>
              )}
            </div>
          </Link>
        )
      })}
    </div>
  )
}

export default memo(SearchResults)