import ts from 'typescript'

/** a helper function to get prop's value text from a JSX attribute */
export const getPropValueText = (propValue: ts.JsxAttributeValue): string | undefined => {
  if (ts.isStringLiteral(propValue)) {
    return propValue.text
  }

  const expression = ts.isJsxExpression(propValue) && propValue.expression

  if (expression) {
    const expressionText = expression.getText()

    if (/^['"`]/.exec(expressionText)) {
      return expressionText.replace(/^['"`]|['"`]$/g, '')
    }
  }
  return undefined
}