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export interface PredictionResult {
filename?: string;
success: boolean;
error?: string;
prediction?: string;
confidence?: number;
probabilities?: { name: string; probability: number }[];
details?: {
gram_stain: string;
shape: string;
pathogenicity: string;
};
previewUrl?: string;
}
const PRECAUTIONS: Record<string, string> = {
"Escherichia coli": "Indicator of fecal contamination. \n\nPrecautions/Actions: Boil water immediately before consumption. Source trace to find sewage leaks. Do not use for washing open wounds.",
"Pseudomonas aeruginosa": "Opportunistic pathogen resistant to many sanitizers. \n\nPrecautions/Actions: Ensure water chlorination levels are adequate. Can cause severe infections in immunocompromised individuals. Avoid contact with eyes or ears.",
"Enterococcus faecalis": "Indicates prolonged fecal contamination. Very resilient. \n\nPrecautions/Actions: Shock chlorinate the water system. Discontinue use for drinking until negative tests are returned.",
"Clostridium perfringens": "Spore-forming bacteria, highly resistant to standard disinfection. \n\nPrecautions/Actions: Indicates remote or past fecal contamination. UV filtration or extreme heat treatment may be required.",
"Listeria monocytogenes": "Dangerous to pregnant women and immunocompromised individuals. \n\nPrecautions/Actions: Do not use water for food preparation or drinking. Pasteurization/boiling is required."
};
interface UploadZoneProps {
onResultsGenerated?: (results: PredictionResult[] | null) => void;
}
export const UploadZone = ({ onResultsGenerated }: UploadZoneProps) => {
const [files, setFiles] = useState<File[]>([]);
const [isUploading, setIsUploading] = useState(false);
const [progress, setProgress] = useState(0);
const [localResults, setLocalResults] = useState<PredictionResult[] | null>(null);
const [selectedResult, setSelectedResult] = useState<PredictionResult | null>(null);
const [error, setError] = useState<string | null>(null);
const fileInputRef = useRef<HTMLInputElement>(null);
const handleFiles = async (selectedFiles: FileList | File[]) => {
const fileArray = Array.from(selectedFiles);
if (fileArray.length === 0) return;
setFiles(fileArray);
// Generate preview URLs
const previewUrls = fileArray.map(f => URL.createObjectURL(f));
setLocalResults(null);
if (onResultsGenerated) onResultsGenerated(null);
setSelectedResult(null);
setError(null);
setIsUploading(true);
setProgress(20);
const formData = new FormData();
fileArray.forEach(f => {
formData.append("files", f);
});
try {
setProgress(60);
const apiUrl = import.meta.env.VITE_API_URL || "http://localhost:5000";
const response = await fetch(`${apiUrl}/predict_batch`, {
method: "POST",
body: formData,
});
if (!response.ok) {
throw new Error("Failed to analyze images");
}
setProgress(90);
const data = await response.json();
// Attach preview URLs to results for display
if (data.results && Array.isArray(data.results)) {
const resultsWithPreviews = data.results.map((r: any) => {
const matchIndex = fileArray.findIndex(f => f.name === r.filename);
return {
...r,
previewUrl: matchIndex >= 0 ? previewUrls[matchIndex] : null
};
});
setLocalResults(resultsWithPreviews);
if (onResultsGenerated) onResultsGenerated(resultsWithPreviews);
}
setProgress(100);
} catch (err: any) {
setError(err.message || "An error occurred");
} finally {
setIsUploading(false);
}
};
const onFileDrop = (e: React.DragEvent<HTMLDivElement>) => {
e.preventDefault();
if (e.dataTransfer.files.length > 0) {
handleFiles(e.dataTransfer.files);
}
};
const onFileChange = (e: React.ChangeEvent<HTMLInputElement>) => {
if (e.target.files && e.target.files.length > 0) {
handleFiles(e.target.files);
}
};
return (
<section className="max-w-7xl mx-auto px-6 mb-24 relative z-10" id="upload">
<div className={`grid ${localResults ? 'grid-cols-1 lg:grid-cols-3' : 'grid-cols-1 max-w-2xl mx-auto'} gap-8`}>
<div className="space-y-6 lg:col-span-1">
<h3 className="text-3xl font-display font-bold">Upload Zone</h3>
<div
onDragOver={(e) => e.preventDefault()}
onDrop={onFileDrop}
onClick={() => fileInputRef.current?.click()}
className="cursor-target border-2 border-dashed border-primary/30 rounded-3xl p-12 flex flex-col items-center justify-center text-center bg-background-light/50 dark:bg-background-dark/50 backdrop-blur-md hover:bg-primary/10 transition-colors group cursor-pointer h-64"
>
<input
type="file"
ref={fileInputRef}
onChange={onFileChange}
className="hidden"
accept="image/*"
multiple
/>
<div className="w-16 h-16 rounded-full bg-primary/20 flex items-center justify-center mb-4 group-hover:scale-110 transition-transform">
<span className="material-symbols-outlined text-primary text-3xl">cloud_upload</span>
</div>
<h4 className="text-lg font-bold mb-2 text-slate-900 dark:text-white">Drag & drop images</h4>
<p className="text-sm text-slate-500 dark:text-slate-400 mb-4">Supports JPG, PNG up to 20MB.</p>
<button className="cursor-target bg-primary text-white px-5 py-2 rounded-lg font-bold hover:scale-105 transition-transform text-sm">Browse</button>
</div>
{/* Upload Progress */}
{isUploading && (
<div className="bg-slate-100 dark:bg-slate-800/80 p-6 rounded-2xl border border-slate-200 dark:border-slate-700 backdrop-blur-md">
<div className="flex items-center justify-between mb-2">
<span className="text-sm font-semibold text-slate-900 dark:text-slate-100">Processing {files.length} images</span>
<span className="text-sm font-bold text-primary">{progress}%</span>
</div>
<div className="w-full h-2 bg-slate-200 dark:bg-slate-700 rounded-full overflow-hidden">
<div className="h-full bg-primary rounded-full transition-all duration-300" style={{ width: `${progress}%` }}></div>
</div>
<p className="text-xs text-slate-500 mt-3 flex items-center gap-1">
<span className="material-symbols-outlined text-[14px] animate-spin">sync</span>
Analyzing morphological features...
</p>
</div>
)}
{error && (
<div className="bg-red-500/10 border border-red-500/20 text-red-500 p-4 rounded-xl flex items-center gap-2">
<span className="material-symbols-outlined">error</span>
{error}
</div>
)}
</div>
{localResults && (
<div className="space-y-6 lg:col-span-2">
<div className="flex items-center justify-between">
<h3 className="text-3xl font-display font-bold">Analysis Results</h3>
<span className="bg-primary/10 text-primary px-3 py-1 rounded-full text-sm font-bold">{localResults.length} processed</span>
</div>
<div className="grid grid-cols-1 md:grid-cols-2 gap-6">
{localResults.map((res, index) => (
<div
key={index}
onClick={() => res.success && setSelectedResult(res)}
className={`bg-white/80 dark:bg-slate-800/80 backdrop-blur-md p-6 rounded-3xl border border-slate-200 dark:border-slate-700 shadow-xl flex flex-col ${res.success ? 'cursor-pointer hover:scale-[1.02] hover:border-primary/50 transition-all' : ''}`}
title={res.success ? "Click for detailed summary" : ""}
>
<div className="flex gap-4 mb-4">
<div className="w-24 h-24 rounded-2xl overflow-hidden border border-primary/20 flex-shrink-0 bg-black">
{res.previewUrl ? (
<img className="w-full h-full object-cover" alt={`Upload ${index}`} src={res.previewUrl} />
) : (
<div className="w-full h-full flex items-center justify-center bg-slate-800"><span className="material-symbols-outlined text-slate-500">image</span></div>
)}
</div>
<div className="flex-1 min-w-0">
<p className="text-xs text-slate-500 dark:text-slate-400 truncate mb-1" title={res.filename}>{res.filename}</p>
{res.success && res.prediction ? (
<>
<h4 className="text-lg font-bold italic text-slate-900 dark:text-slate-100 leading-tight mb-2 truncate" title={res.prediction}>{res.prediction}</h4>
<div className={`inline-flex items-center gap-1 text-xs font-bold px-2 py-1 rounded-full whitespace-nowrap ${(res.confidence || 0) > 80 ? 'bg-green-500/10 text-green-500' : 'bg-yellow-500/10 text-yellow-500'}`}>
<span className="material-symbols-outlined text-[14px]">{(res.confidence || 0) > 80 ? 'verified' : 'warning'}</span>
{(res.confidence || 0).toFixed(1)}% Conf
</div>
</>
) : (
<div className="text-red-500 text-sm font-bold flex items-center gap-1">
<span className="material-symbols-outlined text-sm">error</span> Failed
</div>
)}
</div>
</div>
{res.success && res.details && (
<div className="flex-1 flex flex-col justify-end">
<div className="grid grid-cols-2 gap-2 p-3 bg-slate-50 dark:bg-slate-900/50 rounded-xl">
<div className="text-xs text-slate-900 dark:text-slate-100">
<span className="text-slate-500 block mb-0.5 mt-0">Morphology</span>
<span className="font-semibold">{res.details.shape}</span>
</div>
<div className="text-xs text-slate-900 dark:text-slate-100">
<span className="text-slate-500 block mb-0.5 mt-0">Stain</span>
<span className="font-semibold">{res.details.gram_stain}</span>
</div>
</div>
</div>
)}
</div>
))}
</div>
</div>
)}
</div>
{/* Modal Dialog Box */}
{selectedResult && (
<div className="fixed inset-0 z-50 flex items-center justify-center p-4 bg-black/60 backdrop-blur-sm" onClick={() => setSelectedResult(null)}>
<div
className="bg-white dark:bg-slate-900 rounded-3xl max-w-2xl w-full max-h-[90vh] overflow-y-auto shadow-2xl border border-slate-200 dark:border-slate-700"
onClick={e => e.stopPropagation()}
>
<div className="p-6 md:p-8 flex flex-col gap-6">
<div className="flex items-start justify-between">
<h3 className="text-2xl font-bold font-display text-slate-900 dark:text-white">Detailed Classification Summary</h3>
<button onClick={() => setSelectedResult(null)} className="text-slate-400 hover:text-slate-600 dark:hover:text-slate-200 transition-colors">
<span className="material-symbols-outlined">close</span>
</button>
</div>
<div className="flex flex-col md:flex-row gap-6">
<div className="w-full md:w-48 h-48 rounded-2xl overflow-hidden bg-black flex-shrink-0 border-4 border-slate-100 dark:border-slate-800">
{selectedResult.previewUrl ? (
<img src={selectedResult.previewUrl} alt="Analyzed bacteria" className="w-full h-full object-cover" />
) : (
<div className="w-full h-full flex items-center justify-center text-slate-500"><span className="material-symbols-outlined text-4xl">image</span></div>
)}
</div>
<div className="flex-1 space-y-4">
<div>
<span className="text-sm font-bold text-slate-500 uppercase tracking-wider">Predicted Species</span>
<h4 className="text-3xl font-bold italic text-primary mt-1">{selectedResult.prediction}</h4>
</div>
<div className="grid grid-cols-2 gap-4">
<div className="bg-slate-50 dark:bg-slate-800/50 p-3 rounded-xl">
<span className="text-xs text-slate-500 block mb-1">Confidence</span>
<span className="text-lg font-bold text-slate-900 dark:text-white">{(selectedResult.confidence || 0).toFixed(1)}%</span>
</div>
<div className="bg-slate-50 dark:bg-slate-800/50 p-3 rounded-xl">
<span className="text-xs text-slate-500 block mb-1">Risk Level</span>
<span className="text-lg font-bold text-slate-900 dark:text-white">{selectedResult.details?.pathogenicity || 'Unknown'}</span>
</div>
</div>
</div>
</div>
<div className="grid grid-cols-1 md:grid-cols-2 gap-6 mt-2">
<div className="space-y-3">
<h5 className="font-bold text-slate-900 dark:text-white border-b border-slate-200 dark:border-slate-700 pb-2">Microbiology Specifics</h5>
<ul className="space-y-2 text-sm text-slate-600 dark:text-slate-300">
<li className="flex justify-between"><span>Gram Stain:</span> <strong className="text-slate-900 dark:text-white">{selectedResult.details?.gram_stain}</strong></li>
<li className="flex justify-between"><span>Morphology:</span> <strong className="text-slate-900 dark:text-white">{selectedResult.details?.shape}</strong></li>
<li className="flex justify-between"><span>Pathogenicity:</span> <strong className="text-slate-900 dark:text-white">{selectedResult.details?.pathogenicity}</strong></li>
</ul>
</div>
<div className="space-y-3">
<h5 className="font-bold text-slate-900 dark:text-white border-b border-slate-200 dark:border-slate-700 pb-2">Precautions & Actions</h5>
<div className="bg-yellow-50 dark:bg-yellow-500/10 border border-yellow-200 dark:border-yellow-500/20 rounded-xl p-4 text-sm text-yellow-800 dark:text-yellow-200 shadow-inner">
<div className="flex gap-2 items-start whitespace-pre-line">
<span className="material-symbols-outlined text-[18px] mt-0.5">warning</span>
<p className="leading-relaxed m-0">
{selectedResult.prediction ? (PRECAUTIONS[selectedResult.prediction] || "Standard water safety protocols apply. Heat above 70°C before any consumption.") : "Unknown"}
</p>
</div>
</div>
</div>
</div>
<div className="mt-4 flex justify-end">
<button className="px-6 py-2 bg-slate-900 dark:bg-white text-white dark:text-slate-900 font-bold rounded-xl hover:scale-105 transition-transform" onClick={() => setSelectedResult(null)}>
Close Details
</button>
</div>
</div>
</div>
</div>
)}
</section>
);
};
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