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midas_node

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Run midas tasks in a nodejs environment.

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midas_node src midas node rollup.gleam
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src/midas/node/rollup.gleam 

import gleam/dynamic.{type Dynamic}

import gleam/javascript/promise.{type Promise}

import gleam/result

import gleam/string

import simplifile

import snag



@external(javascript, "../../midas_node_rollup_ffi.mjs", "iife")

pub fn iife(input: String) -> Promise(Result(String, Dynamic))



pub fn bundle_fn(root, file, func) {

  let export_filename = "rollup_export.js"

  let export_path = string.concat([root, "/", export_filename])

  let export_content =

    "import { " <> func <> " } from \"./" <> file <> "\";\n" <> func <> "()"

  let assert Ok(Nil) = simplifile.write(export_path, export_content)

  use code <- promise.map(iife(export_path))

  code

  |> result.map_error(fn(err) { snag.new(string.inspect(err)) })

}