import React from 'react';
import { 
  ChevronLeft, Reply, ReplyAll, Forward, Star, MoreHorizontal
} from 'lucide-react';
import { ScrollArea } from '@/components/ui/scroll-area';
import { Avatar, AvatarFallback } from '@/components/ui/avatar';
import { Button } from '@/components/ui/button';
import { Email } from '@/hooks/use-courrier';

interface EmailDetailViewProps {
  email: Email & { html?: string; text?: string };
  onBack: () => void;
  onReply: () => void;
  onReplyAll: () => void;
  onForward: () => void;
  onToggleStar: () => void;
}

export default function EmailDetailView({
  email,
  onBack,
  onReply,
  onReplyAll,
  onForward,
  onToggleStar
}: EmailDetailViewProps) {
  
  // Format date for display
  const formatDate = (dateString: string) => {
    const date = new Date(dateString);
    const now = new Date();
    
    if (date.toDateString() === now.toDateString()) {
      return date.toLocaleTimeString([], { hour: '2-digit', minute: '2-digit' });
    } else {
      return date.toLocaleDateString([], { month: 'short', day: 'numeric' });
    }
  };
  
  // Render email content based on the email body
  const renderEmailContent = () => {
    try {
      // Use fallback for content, html, or text
      return <div dangerouslySetInnerHTML={{ __html: email.content || email.html || email.text || '' }} />;
    } catch (e) {
      console.error('Error rendering email:', e);
      return <div className="text-gray-500">Failed to render email content</div>;
    }
  };
  
  return (
    <>
      {/* Email actions header */}
      <div className="flex-none px-4 py-3 border-b border-gray-100">
        <div className="flex items-center gap-4">
          <div className="flex items-center gap-2 min-w-0 flex-1">
            <Button
              variant="ghost"
              size="icon"
              onClick={onBack}
              className="md:hidden flex-shrink-0"
            >
              <ChevronLeft className="h-5 w-5" />
            </Button>
            <div className="min-w-0 max-w-[500px]">
              <h2 className="text-lg font-semibold text-gray-900 truncate">
                {email.subject}
              </h2>
            </div>
          </div>
          <div className="flex items-center gap-1 flex-shrink-0 ml-auto">
            <div className="flex items-center border-l border-gray-200 pl-4">
              <Button
                variant="ghost"
                size="icon"
                className="text-gray-400 hover:text-gray-900 h-9 w-9"
                onClick={onReply}
              >
                <Reply className="h-4 w-4" />
              </Button>
              <Button
                variant="ghost"
                size="icon"
                className="text-gray-400 hover:text-gray-900 h-9 w-9"
                onClick={onReplyAll}
              >
                <ReplyAll className="h-4 w-4" />
              </Button>
              <Button
                variant="ghost"
                size="icon"
                className="text-gray-400 hover:text-gray-900 h-9 w-9"
                onClick={onForward}
              >
                <Forward className="h-4 w-4" />
              </Button>
              <Button
                variant="ghost"
                size="icon"
                className="text-gray-400 hover:text-gray-900 h-9 w-9"
                onClick={onToggleStar}
              >
                <Star className={`h-4 w-4 ${email.starred ? 'fill-yellow-400 text-yellow-400' : ''}`} />
              </Button>
            </div>
          </div>
        </div>
      </div>
      
      {/* Scrollable content area */}
      <ScrollArea className="flex-1 p-6">
        <div className="flex items-center gap-4 mb-6">
          <Avatar className="h-10 w-10">
            <AvatarFallback>
              {(email.from?.[0]?.name || '').charAt(0) || (email.from?.[0]?.address || '').charAt(0) || '?'}
            </AvatarFallback>
          </Avatar>
          <div className="flex-1">
            <p className="font-medium text-gray-900">
              {email.from?.[0]?.name || ''} <span className="text-gray-500">&lt;{email.from?.[0]?.address || ''}&gt;</span>
            </p>
            <p className="text-sm text-gray-500">
              to {email.to?.[0]?.address || ''}
            </p>
            {email.cc && email.cc.length > 0 && (
              <p className="text-sm text-gray-500">
                cc {email.cc.map(c => c.address).join(', ')}
              </p>
            )}
          </div>
          <div className="text-sm text-gray-500 whitespace-nowrap">
            {formatDate(email.date)}
          </div>
        </div>
        
        {/* Email content */}
        <div className="prose prose-sm max-w-none">
          {renderEmailContent()}
        </div>
        
        {/* Attachments (if any) */}
        {email.hasAttachments && email.attachments && email.attachments.length > 0 && (
          <div className="mt-6 border-t border-gray-100 pt-4">
            <h3 className="text-sm font-medium text-gray-900 mb-2">Attachments</h3>
            <div className="grid grid-cols-1 sm:grid-cols-2 gap-2">
              {email.attachments.map((attachment, idx) => (
                <div 
                  key={idx}
                  className="flex items-center gap-2 p-2 border border-gray-200 rounded-md"
                >
                  <div className="flex-1 min-w-0">
                    <p className="text-sm font-medium text-gray-700 truncate">{attachment.filename}</p>
                    <p className="text-xs text-gray-500">{(attachment.size / 1024).toFixed(1)} KB</p>
                  </div>
                </div>
              ))}
            </div>
          </div>
        )}
      </ScrollArea>
    </>
  );
}