```ts
export function parseCsvLine(line: string): string[] {
  if (line === "") return [];

  const result: string[] = [];
  let currentField = "";
  let inQuote = false;

  for (let i = 0; i < line.length; i++) {
    const char = line[i];

    if (char === '"') {
      if (!inQuote) {
        inQuote = true;
      } else if (i + 1 < line.length && line[i + 1] === '"') {
        currentField += '"';
        i++; // Skip the next quote
      } else {
        throw new Error("Unclosed quoted field");
      }
    } else if (char === ',' && !inQuote) {
      result.push(currentField.trim());
      currentField = "";
    } else {
      currentField += char;
    }
  }

  // Add the last field if there is one
  if (currentField.length > 0) {
    result.push(currentField.trim());
  }

  return result;
}
```