// Loads a src/shared/plugins TypeScript module from a plain Node script, so the generator and the
// validator run the exact runtime schemas without a TypeScript loader.
import { mkdirSync, mkdtempSync, rmSync } from 'node:fs'
import { createRequire } from 'node:module'
import path from 'node:path'
import * as esbuild from 'esbuild'

export const REPO_ROOT = path.resolve(import.meta.dirname, '..', '..')

export function loadPluginSchemaModule(fileName) {
  // Why under out/: the bundle keeps zod external, so it must resolve from the repo's node_modules.
  mkdirSync(path.join(REPO_ROOT, 'out'), { recursive: true })
  const buildDir = mkdtempSync(path.join(REPO_ROOT, 'out', 'plugin-schemas-'))
  try {
    const outfile = path.join(buildDir, 'bundle.cjs')
    esbuild.buildSync({
      entryPoints: [path.join(REPO_ROOT, 'src', 'shared', 'plugins', fileName)],
      bundle: true,
      platform: 'node',
      format: 'cjs',
      outfile,
      logLevel: 'error',
      packages: 'external'
    })
    return createRequire(import.meta.url)(outfile)
  } finally {
    rmSync(buildDir, { recursive: true, force: true })
  }
}