import { existsSync } from 'node:fs'
import { mkdtemp, readFile, rm, writeFile } from 'node:fs/promises'
import { tmpdir } from 'node:os'
import { join } from 'node:path'

import ava, { type TestFn } from 'ava'

import { updatePackageJson } from '../misc.js'

const test = ava as TestFn<{
  tmpDir: string
}>

test.beforeEach(async (t) => {
  t.context = {
    tmpDir: await mkdtemp(join(tmpdir(), 'napi-rs-misc-spec-')),
  }
})

test.afterEach.always(async (t) => {
  if (existsSync(t.context.tmpDir)) {
    await rm(t.context.tmpDir, { recursive: true, force: true })
  }
})

test('updatePackageJson merges nested objects instead of overwriting them', async (t) => {
  const packageJsonPath = join(t.context.tmpDir, 'package.json')

  await writeFile(
    packageJsonPath,
    JSON.stringify(
      {
        name: 'fixture',
        version: '1.0.0',
        optionalDependencies: {
          fsevents: '^2.3.3',
        },
      },
      null,
      2,
    ),
  )

  await updatePackageJson(packageJsonPath, {
    optionalDependencies: {
      '@napi-rs/fixture-darwin-arm64': '1.0.1',
    },
  })

  const packageJson = JSON.parse(await readFile(packageJsonPath, 'utf8'))

  t.deepEqual(packageJson.optionalDependencies, {
    fsevents: '^2.3.3',
    '@napi-rs/fixture-darwin-arm64': '1.0.1',
  })
})