import { useState } from 'react';
import { Image as ImageIcon, Loader2, Sparkles } from 'lucide-react';

export default function ComfyUI() {
  const [prompt, setPrompt] = useState('');
  const [loading, setLoading] = useState(false);
  const [imageUrl, setImageUrl] = useState('');
  const [error, setError] = useState('');

  const handleGenerate = async () => {
    if (!prompt.trim()) return;
    
    setLoading(true);
    setError('');
    setImageUrl('');

    try {
      const response = await fetch('/api/comfy', {
        method: 'POST',
        headers: { 'Content-Type': 'application/json' },
        body: JSON.stringify({ prompt }),
      });

      if (!response.ok) throw new Error('Failed to generate image');
      
      const data = await response.json();
      setImageUrl(data.url);
    } catch (err) {
      setError(err.message || 'Something went wrong');
    } finally {
      setLoading(false);
    }
  };

  return (
    <div className="bg-slate-800 rounded-xl p-6 shadow-xl border border-slate-700">
      <div className="flex items-center gap-2 mb-4">
        <ImageIcon className="w-5 h-5 text-pink-500" />
        <h2 className="text-lg font-semibold text-white">ComfyUI Image Gen</h2>
      </div>

      <div className="space-y-4">
        <div>
          <label className="block text-sm font-medium text-slate-400 mb-1">
            Prompt
          </label>
          <textarea
            value={prompt}
            onChange={(e) => setPrompt(e.target.value)}
            placeholder="A futuristic cyberpunk city with neon lights..."
            className="w-full bg-slate-900 border border-slate-600 rounded-lg p-3 text-white placeholder-slate-500 focus:ring-2 focus:ring-pink-500 focus:border-transparent outline-none transition-all resize-none h-24"
          />
        </div>

        <button
          onClick={handleGenerate}
          disabled={loading}
          className="w-full bg-gradient-to-r from-pink-600 to-purple-600 hover:from-pink-500 hover:to-purple-500 text-white font-medium py-2.5 rounded-lg transition-all flex items-center justify-center gap-2 disabled:opacity-50 disabled:cursor-not-allowed"
        >
          {loading ? (
            <>
              <Loader2 className="w-4 h-4 animate-spin" />
              Generating...
            </>
          ) : (
            <>
              <Sparkles className="w-4 h-4" />
              Generate Image
            </>
          )}
        </button>

        {error && (
          <div className="bg-red-900/30 text-red-400 p-3 rounded-lg text-sm border border-red-800">
            {error}
          </div>
        )}

        {imageUrl && (
          <div className="mt-4 border border-slate-600 rounded-lg overflow-hidden bg-slate-900">
            <img src={imageUrl} alt="Generated content" className="w-full h-auto object-cover" />
          </div>
        )}
      </div>
    </div>
  );
}