import { renderToImageAsync, loadAsync } from 'expo-font';
import type { ImageSourcePropType } from 'react-native';

import { androidSymbolToString, type AndroidSymbol } from './android';
import { getFont } from './utils';

/**
 * Renders a Material Symbol to an image source.
 *
 * @platform android
 */
export async function unstable_getMaterialSymbolSourceAsync(
  symbol: AndroidSymbol | null,
  size: number,
  color: string
): Promise<ImageSourcePropType | null> {
  if (!symbol) return null;
  if (typeof renderToImageAsync !== 'function') {
    console.warn(`Font.renderToImageAsync is not available. Please update expo-font.`);
    return null;
  }
  const fontChar = androidSymbolToString(symbol);
  if (!fontChar) return null;
  const font = getFont('regular');
  await loadAsync({
    [font.name]: font.font,
  });
  const image = await renderToImageAsync(fontChar, {
    fontFamily: font.name,
    size,
    color,
    lineHeight: size,
  });
  return image;
}