import { parseManifest, type SimManifest } from './manifest.ts';
import type { MFile } from './mrender.ts';

/**
 * Discovery: every ../simulated_instruments/<repo>/instrument.json, with
 * that repo's matlab/*.m sources, bundled at build time. A repo without a
 * manifest is simply not an instrument; a manifest that fails validation
 * is reported and skipped rather than taking the app down.
 */

const manifestModules = import.meta.glob('../../../../../simulated_instruments/*/instrument.json', {
  eager: true,
  query: '?raw',
  import: 'default',
}) as Record<string, string>;

const mModules = import.meta.glob('../../../../../simulated_instruments/*/matlab/*.m', {
  eager: true,
  query: '?raw',
  import: 'default',
}) as Record<string, string>;

export interface SimInstrumentDef {
  manifest: SimManifest;
  mfiles: MFile[];
}

export function loadCatalog(): SimInstrumentDef[] {
  const out: SimInstrumentDef[] = [];
  for (const [path, text] of Object.entries(manifestModules)) {
    const dir = path.slice(0, path.lastIndexOf('/'));
    let manifest: SimManifest;
    try {
      manifest = parseManifest(text);
    } catch (err) {
      console.warn(`skipping ${path}: ${err instanceof Error ? err.message : String(err)}`);
      continue;
    }
    const mfiles: MFile[] = Object.entries(mModules)
      .filter(([p]) => p.startsWith(dir + '/matlab/'))
      .map(([p, source]) => ({ name: p.split('/').pop()!, source }))
      .sort((a, b) => a.name.localeCompare(b.name));
    if (mfiles.length === 0) {
      console.warn(`skipping ${path}: no matlab/*.m sources found`);
      continue;
    }
    out.push({ manifest, mfiles });
  }
  out.sort((a, b) => a.manifest.name.localeCompare(b.manifest.name));
  return out;
}