// Example registry. Sources come from two places:
//  - curated hand-written scripts (fid/epi/gre) with friendlier comments
//  - auto-adapted pulseq demoSeq scripts under ./pulseq/*.m, generated by
//    scripts/gen-examples.mjs (only demos that actually run on numbl)
// Metadata (name/category/description) is looked up in CATALOG; run-time
// labels come from generated-timings.ts. An id without a CATALOG entry is
// skipped, so stale generated files can't leak in unlabeled.
import { CATALOG, type Category } from './catalog.ts'
import { TIMINGS } from './generated-timings.ts'
import fidSource from './fid.m?raw'
import epiSource from './epi.m?raw'
import greSource from './gre.m?raw'

export interface Example {
  id: string
  name: string
  category: Category
  description: string
  source: string
  /** Rough in-browser run time, e.g. "~2 s". */
  approx: string
  /** True for the hand-written curated scripts. */
  curated: boolean
}

const curated: Record<string, string> = {
  fid: fidSource,
  epi: epiSource,
  gre: greSource,
}

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

const generated: Record<string, string> = {}
for (const [path, source] of Object.entries(generatedModules)) {
  const id = path.replace(/^\.\/pulseq\//, '').replace(/\.m$/, '')
  if (!(id in curated)) generated[id] = source
}

function build(id: string, source: string, curatedFlag: boolean): Example | null {
  const meta = CATALOG[id]
  if (!meta) return null
  return {
    id,
    name: meta.name,
    category: meta.category,
    description: meta.description,
    source,
    approx: TIMINGS[id] ?? '',
    curated: curatedFlag,
  }
}

export const EXAMPLES: Example[] = [
  ...Object.entries(curated).map(([id, src]) => build(id, src, true)),
  ...Object.entries(generated).map(([id, src]) => build(id, src, false)),
].filter((e): e is Example => e !== null)

export function findExample(id: string): Example | undefined {
  return EXAMPLES.find((e) => e.id === id)
}