import { clsx, type ClassValue } from "clsx"
import { twMerge } from "tailwind-merge"

export function cn(...inputs: ClassValue[]) {
  return twMerge(clsx(inputs))
}

export function exportToCsv<T extends Record<string, any>>(data: T[], filename: string): void {
  if (!data || data.length === 0) {
    alert("No data to export.");
    return;
  }

  const headers = Object.keys(data[0]);
  const csvRows = [
    headers.join(','), // header row
    ...data.map(row =>
      headers
        .map(fieldName => JSON.stringify(row[fieldName] ?? '', (key, value) => value ?? ''))
        .join(',')
    ),
  ];

  const csvContent = "data:text/csv;charset=utf-8," + csvRows.join('\n');
  const encodedUri = encodeURI(csvContent);
  const link = document.createElement("a");
  link.setAttribute("href", encodedUri);
  link.setAttribute("download", filename);
  document.body.appendChild(link);
  link.click();
  document.body.removeChild(link);
}