import { readFileSync } from 'fs';
import { join } from 'path';

/**
 * Loads the Inter fonts for use in Satori (Next.js OG Image generation).
 * Since we are using runtime = 'nodejs', we can read them from the filesystem.
 */
export async function getOgFonts() {
  const boldFontPath = join(process.cwd(), 'public/fonts/Inter-Bold.woff2');
  const regularFontPath = join(process.cwd(), 'public/fonts/Inter-Regular.woff2');

  try {
    console.log(`[OG] Loading fonts: bold=${boldFontPath}, regular=${regularFontPath}`);
    const boldFont = readFileSync(boldFontPath);
    const regularFont = readFileSync(regularFontPath);
    console.log(
      `[OG] Fonts loaded successfully (${boldFont.length} and ${regularFont.length} bytes)`,
    );

    return [
      {
        name: 'Inter',
        data: boldFont,
        weight: 700 as const,
        style: 'normal' as const,
      },
      {
        name: 'Inter',
        data: regularFont,
        weight: 400 as const,
        style: 'normal' as const,
      },
    ];
  } catch (error) {
    console.error(`[OG] Failed to load fonts from ${process.cwd()}:`, error);
    return [];
  }
}

/**
 * Common configuration for OG images
 */
export const OG_IMAGE_SIZE = {
  width: 1200,
  height: 630,
};
