import fs from 'node:fs/promises'
import { useDocument } from '../packages/js/dist/esm/index.js'
import { createFileReader } from '../packages/js/dist/esm/readers/node-readline.js'

// NOTE: The children() iterator now works correctly with file readers after fixing the parser

function useHelpers() {

  async function kvObject(parentNode, handleValue) {
    const object = {}
    for await (const child of parentNode.children()) {
      if (!child.head) continue
      object[child.head] = handleValue ? await handleValue(child) : child.tail.trim()
    }
    return object
  }

  return { kvObject }
}

async function buildPackage() {
  const doc = useDocument(createFileReader('./repo/package.tce'))
  const { kvObject } = useHelpers()

  const pkg = {}

  for await (const node of doc) {
    if (node.is('name')) pkg.name = node.tail.trim()
    if (node.is('version')) pkg.version = node.tail.trim()
    if (node.is('license')) pkg.license = node.tail.trim()
    if (node.is('type')) pkg.type = node.tail.trim()
    if (node.is('private')) pkg.private = node.tail.trim() === 'true'

    if (node.is('scripts')) pkg.scripts = await kvObject(node)
    if (node.is('devDependencies')) pkg.devDependencies = await kvObject(node)
  }

  await fs.writeFile('./package.json', JSON.stringify(pkg, null, '  '))
}

async function buildTurbo() {
  const doc = useDocument(createFileReader('./repo/turbo.tce'), ' ')
  const { kvObject } = useHelpers()

  const turbo = {}

  for await (const node of doc) {
    if (node.is('#schema')) turbo['$schema'] = node.tail.trim()
    if (node.is('pipeline')) {
      const pipeline = {}
      for await (const pipelineNode of node.children()) {
        if (!pipelineNode.head) continue

        const entry = pipeline[pipelineNode.head] = {}
        for await (const configNode of pipelineNode.children()) {
          if (configNode.is('dependsOn')) entry.dependsOn = configNode.tail.trim().split(' ')
          if (configNode.is('outputs')) entry.outputs = configNode.tail.trim().split(' ')
        }
      }
      turbo.pipeline = pipeline
    }
  }

  await fs.writeFile('./turbo.json', JSON.stringify(turbo, null, '  '))
}

buildPackage()
buildTurbo()