import { SQLITE3_WASM_BASE64 } from './sqlite3-wasm.ts';
import { FolderSyncDB } from '../../sqlite/src/index.ts';
import { initPasteApp } from '../shared.ts';

// Decode embedded WASM → blob URL so sqlite3InitModule loads
// without fetch(), enabling file:// usage (no server needed).
function base64ToBlob(b64: string, mime: string): Blob {
  const bin = atob(b64);
  const bytes = new Uint8Array(bin.length);
  for (let i = 0; i < bin.length; i++) bytes[i] = bin.charCodeAt(i);
  return new Blob([bytes], { type: mime });
}

const wasmBlobUrl = URL.createObjectURL(
  base64ToBlob(SQLITE3_WASM_BASE64, 'application/wasm'),
);

document.addEventListener('DOMContentLoaded', async () => {
  try {
    const db = await FolderSyncDB.open({
      autoSyncIntervalMs: 3000,
      sqlite3Config: {
        locateFile: (path: string) =>
          path.endsWith('.wasm') ? wasmBlobUrl : path,
      },
    });
    await initPasteApp(db as any, 'sqlite');
  } catch (e) {
    console.error('SQLite init failed:', e);
    document.body.innerHTML = `<div style="color:#e05555;padding:2rem;font-family:monospace">
      SQLite init failed: ${(e as Error).message}</div>`;
  }
});