const assert = require('node:assert/strict')
const fs = require('node:fs')
const os = require('node:os')
const path = require('node:path')
const test = require('node:test')

const { withXuqmConfig } = require('../metro')

test('withXuqmConfig schedules automatic initialization before the app entry', () => {
  const projectRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'xuqm-metro-'))
  const configDir = path.join(projectRoot, 'src/assets/config')
  const existingPrelude = path.join(projectRoot, 'existing-prelude.js')

  try {
    fs.mkdirSync(configDir, { recursive: true })
    fs.writeFileSync(path.join(configDir, 'app.xuqmconfig'), 'XUQM-CONFIG-V1.test', 'utf8')

    const config = withXuqmConfig({
      projectRoot,
      resolver: {},
      serializer: {
        getModulesRunBeforeMainModule: () => [existingPrelude],
      },
    })

    const preludeModules = config.serializer.getModulesRunBeforeMainModule('index.js')
    assert.equal(preludeModules[0], existingPrelude)
    assert.match(preludeModules[1], /packages[\\/]common[\\/]src[\\/]internal\.ts$/)

    const virtualModule = config.resolver.resolveRequest(
      { resolveRequest: () => assert.fail('fallback resolver should not run') },
      '@xuqm/autoinit-config',
      'android',
    )
    assert.equal(virtualModule.type, 'sourceFile')
    assert.match(fs.readFileSync(virtualModule.filePath, 'utf8'), /XUQM-CONFIG-V1\.test/)
  } finally {
    fs.rmSync(projectRoot, { recursive: true, force: true })
  }
})

test('withXuqmConfig leaves common-only hosts unchanged without a config file', () => {
  const projectRoot = fs.mkdtempSync(path.join(os.tmpdir(), 'xuqm-metro-'))
  const original = {
    projectRoot,
    serializer: {
      getModulesRunBeforeMainModule: () => ['existing-prelude.js'],
    },
  }

  try {
    assert.equal(withXuqmConfig(original), original)
  } finally {
    fs.rmSync(projectRoot, { recursive: true, force: true })
  }
})