// The vendored pulseq +mr package as numbl boot files. The tree is inlined
// into the bundle at build time (raw imports); see src/engine/pulseq/VENDORED.md
// for provenance.
import type { BootFile } from 'numbl/browser'

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

// pulseq's md5 needs Java (MATLAB) or the `hash` builtin (Octave). numbl
// provides `hash`, but md5.m only reaches it through its isOctave branch —
// replace the whole file with a direct wrapper.
const MD5_OVERRIDE = `function digest = md5(message, noBuiltIn)
    digest = hash('MD5', char(message));
end
`

// There is no Python/SigPy (and no OS `system` command) in the browser.
// isSigPyAvailable probes for it via system(); stub it to "not available" so
// pulse designers (adiabatic, SLR) take their internal non-sigpy path.
const ISSIGPY_OVERRIDE = `function [sigPyOK, pythonExe] = isSigPyAvailable()
    sigPyOK = false;
    pythonExe = '';
end
`

const OVERRIDES: Record<string, string> = {
  '+mr/+aux/md5.m': MD5_OVERRIDE,
  '+mr/+aux/isSigPyAvailable.m': ISSIGPY_OVERRIDE,
}

/** Boot-file list for a session: the +mr tree with app-level overrides applied. */
export function mrBootFiles(): BootFile[] {
  const files: BootFile[] = []
  for (const [key, content] of Object.entries(raw)) {
    const path = key.replace('./pulseq/', '')
    files.push({ path, content: OVERRIDES[path] ?? content })
  }
  return files
}