import { getNpm } from './platform'
import { execa } from 'execa'
import { cwd } from 'process'
import { semverMaxSatisfying } from './semver'

/**
 * get the latest version of the package
 * @param {string} packageName
 * @returns {string} latestVersion
 */
async function getLastestVersion(packageName: string) {
  const npmCommand = getNpm()
  const viewArgs = ['info', packageName, '--json']
  const { stdout } = await execa(npmCommand, viewArgs, { cwd: cwd() })
  const {
    'dist-tags': { latest: latestVersion },
  } = JSON.parse(stdout)

  return latestVersion
}

async function getLastestVersionWithRange(packageName: string, versionRange: string) {
  const npmCommand = getNpm()
  const viewArgs = ['view', packageName, 'versions', '--json']
  const { stdout } = await execa(npmCommand, viewArgs, { cwd: cwd() })
  const versionList = JSON.parse(stdout)
  const lastestVersion = semverMaxSatisfying(versionList, versionRange)
  return lastestVersion
}

async function getPackageDependencies(packageName: string, version: string) {
  const npmCommand = getNpm()
  const viewArgs = ['view', `${packageName}@${version}`, 'dependencies', '--json']
  const { stdout } = await execa(npmCommand, viewArgs, { cwd: cwd() })
  const dependencies = JSON.parse(stdout)
  return dependencies
}

export { getLastestVersion, getLastestVersionWithRange, getPackageDependencies }