import { resolve } from 'path'
import { readFileSync } from 'fs'
import { Compiler } from '#compiler/compiler'
import { type Value, VM, Scope } from 'reefvm'

export const load = async function (this: VM, path: string): Promise<Record<string, Value>> {
  const scope = this.scope
  const pc = this.pc

  const fullPath = resolve(path) + '.sh'
  const code = readFileSync(fullPath, 'utf-8')

  this.pc = this.instructions.length
  this.scope = new Scope(scope)
  const compiled = new Compiler(code)
  this.appendBytecode(compiled.bytecode)

  await this.continue()

  const module: Record<string, Value> = {}
  for (const [name, value] of this.scope.locals.entries())
    module[name] = value

  this.scope = scope
  this.pc = pc
  this.stopped = false

  return module
}