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* @fileoverview Export Options Component
* @description Provides options to export simulation data and screenshots
* @module components/ExportOptions
*/
import { useRef } from 'react';
import { useSimulation } from '../context/SimulationContext';
import './ExportOptions.css';
/**
* Export Options Component
* Allows exporting simulation data in various formats
* @returns {JSX.Element} Export options panel
*/
function ExportOptions() {
const simulation = useSimulation();
const downloadLinkRef = useRef(null);
/**
* Generate filename with timestamp
* @param {string} extension - File extension
* @returns {string} Filename
*/
const generateFilename = (extension) => {
const date = new Date();
const timestamp = date.toISOString().slice(0, 19).replace(/[:-]/g, '');
return `md_simulation_${timestamp}.${extension}`;
};
/**
* Download data as a file
* @param {string} content - File content
* @param {string} filename - Download filename
* @param {string} mimeType - MIME type
*/
const downloadFile = (content, filename, mimeType) => {
const blob = new Blob([content], { type: mimeType });
const url = URL.createObjectURL(blob);
Eif (downloadLinkRef.current) {
downloadLinkRef.current.href = url;
downloadLinkRef.current.download = filename;
downloadLinkRef.current.click();
URL.revokeObjectURL(url);
}
};
/**
* Export simulation state as JSON
*/
const exportJSON = () => {
const data = {
exportedAt: new Date().toISOString(),
simulation: {
time: simulation.time,
temperature: simulation.temperature,
energy: simulation.energy,
settings: {
dt: simulation.dt,
scale: simulation.scale,
size: simulation.size,
enablePhysics: simulation.enablePhysics,
showBonds: simulation.showBonds,
},
},
atoms: simulation.atoms.map(atom => ({
id: atom.id,
type: atom.type,
symbol: atom.symbol,
name: atom.name,
position: atom.pos,
velocity: atom.vel,
mass: atom.mass,
radius: atom.radius,
})),
bonds: simulation.bonds.map(bond => ({
atom1: bond.atom1Id,
atom2: bond.atom2Id,
order: bond.order,
distance: bond.distance,
})),
};
const json = JSON.stringify(data, null, 2);
downloadFile(json, generateFilename('json'), 'application/json');
};
/**
* Export atom data as CSV
*/
const exportCSV = () => {
const headers = ['ID', 'Type', 'Symbol', 'Name', 'X', 'Y', 'Z', 'VX', 'VY', 'VZ', 'Mass', 'Radius'];
const rows = simulation.atoms.map(atom => [
atom.id,
atom.type,
atom.symbol,
atom.name,
atom.pos.x.toFixed(4),
atom.pos.y.toFixed(4),
atom.pos.z.toFixed(4),
atom.vel.x.toFixed(4),
atom.vel.y.toFixed(4),
atom.vel.z.toFixed(4),
atom.mass.toFixed(4),
atom.radius.toFixed(4),
]);
const csv = [headers.join(','), ...rows.map(row => row.join(','))].join('\n');
downloadFile(csv, generateFilename('csv'), 'text/csv');
};
/**
* Export data in XYZ format (common molecular format)
*/
const exportXYZ = () => {
const lines = [
simulation.atoms.length.toString(),
`Molecular Dynamics Export - Time: ${simulation.time}, Temp: ${simulation.temperature.toFixed(2)}K`,
...simulation.atoms.map(atom =>
`${atom.symbol} ${atom.pos.x.toFixed(6)} ${atom.pos.y.toFixed(6)} ${atom.pos.z.toFixed(6)}`
),
];
const xyz = lines.join('\n');
downloadFile(xyz, generateFilename('xyz'), 'chemical/x-xyz');
};
/**
* Capture and export canvas screenshot
*/
const exportScreenshot = () => {
const canvas = document.querySelector('canvas');
Eif (!canvas) {
alert('No canvas found to capture');
return;
}
try {
const dataUrl = canvas.toDataURL('image/png');
const link = document.createElement('a');
link.href = dataUrl;
link.download = generateFilename('png');
link.click();
} catch (error) {
console.error('Failed to capture screenshot:', error);
alert('Failed to capture screenshot. Canvas may be tainted.');
}
};
/**
* Copy current state summary to clipboard
*/
const copyToClipboard = async () => {
const summary = [
`=== Molecular Dynamics Simulation Summary ===`,
`Time: ${simulation.time}`,
`Temperature: ${simulation.temperature.toFixed(2)} K`,
``,
`Energy:`,
` Kinetic: ${simulation.energy.kinetic.toFixed(4)}`,
` Potential: ${simulation.energy.potential.toFixed(4)}`,
` Total: ${simulation.energy.total.toFixed(4)}`,
``,
`Atoms: ${simulation.atoms.length}`,
`Bonds: ${simulation.bonds.length}`,
``,
`Atom Summary:`,
...simulation.atoms.map(a => ` ${a.id}: ${a.symbol} (${a.name}) at (${a.pos.x.toFixed(2)}, ${a.pos.y.toFixed(2)}, ${a.pos.z.toFixed(2)})`),
].join('\n');
try {
await navigator.clipboard.writeText(summary);
alert('Summary copied to clipboard!');
} catch (error) {
console.error('Failed to copy:', error);
alert('Failed to copy to clipboard');
}
};
return (
<div className="export-options-panel">
<h3 className="export-title">
<span className="export-icon">📤</span>
Export Data
</h3>
<div className="export-grid">
<button className="export-btn" onClick={exportJSON} title="Export full simulation state">
<span className="btn-icon">{ }</span>
<span className="btn-label">JSON</span>
<span className="btn-hint">Full state</span>
</button>
<button className="export-btn" onClick={exportCSV} title="Export atom data as spreadsheet">
<span className="btn-icon">📊</span>
<span className="btn-label">CSV</span>
<span className="btn-hint">Atom data</span>
</button>
<button className="export-btn" onClick={exportXYZ} title="Export in molecular XYZ format">
<span className="btn-icon">🧬</span>
<span className="btn-label">XYZ</span>
<span className="btn-hint">Molecular</span>
</button>
<button className="export-btn" onClick={exportScreenshot} title="Save canvas as image">
<span className="btn-icon">📸</span>
<span className="btn-label">Screenshot</span>
<span className="btn-hint">PNG image</span>
</button>
</div>
<button className="copy-btn" onClick={copyToClipboard}>
📋 Copy Summary to Clipboard
</button>
{/* Hidden download link */}
<a ref={downloadLinkRef} style={{ display: 'none' }} aria-hidden="true">
Download
</a>
</div>
);
}
export default ExportOptions;
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