// Functions related to OS and installing software
import chalk from 'chalk'
import { execSync } from 'child_process'

// Detects the operating system we are running on
let distro
export function detectOS() {
  if(distro) {
    return distro
  }
  
  try {
    execSync('[ -f "/etc/debian_version" ]')
    distro = 'debian'
    console.log(`${greenChalk('Debian')}, Ubuntu, or Raspbian OS detected.`)
  } catch(err) {}
  
  try {
    execSync('[ -f "/etc/arch-release" ]')
    distro = 'arch'
    console.log(`${greenChalk('Arch or Manjaro-based')} OS detected.`)
  } catch(err) {}
  
    try {
    execSync('[ -f "/etc/fedora-release" ]')
    distro = 'fedora'
    console.log(`${greenChalk('Fedora')} OS detected.`)
  } catch(err) {}
  
    try {
    execSync('[ $(uname | grep -c "Darwin") -eq 1 ]')
    distro = 'mac'
    console.log(`${greenChalk('MacOS')} detected.`)
  } catch(err) {}
  
  if(!distro) {
    console.log("Your OS was not recognized, sorry.")
    process.exit(1)
  }
  
  return distro
}

// Runs the correct command to update all your software for any recognized OS
export function updateSoftware() {
  detectOS()
  if(!distro) {
    console.log("Your OS was not recognized, so nothing was updated, sorry.")
    return false
  }
  
  console.log('Updating your software from repositories...')
  console.log(`(You may need to input your ${chalk.blue.bold("'sudo' password")} here)`)
  switch(distro) {
    case 'debian':
      execSync('sudo apt update && sudo apt autoremove && sudo apt upgrade')
      break
    case 'arch':
      execSync('sudo pacman -Syu --noconfirm')
      break
    case 'fedora':
      execSync('sudo dnf update && sudo dnf upgrade')
      break
    case 'mac':
      execSync('install && sudo brew update')
      break
    }

  return true
}

// Installs core dependencies required by Alchemy and the AO
export function installRequired() {
  detectOS()
  if(!distro) {
    console.log("Your OS was not recognized, so nothing was installed, sorry.")
    return false
  }
  console.log('Installing Alchemy and AO installation process core dependencies (fast if already installed)...')
  console.log(`(You may need to input your ${chalk.blue.bold("'sudo' password")} here)`)
  
  // Install OS-specific requirements
  switch(distro) {
    case 'debian':
      execSync('sudo apt install build-essential')
      // Some of these might not be required
      execSync('source ~/Alchemy/ingredients/lead && install_if_needed sqlite3 zlib1g-dev libtool-bin autoconf autoconf-archive automake autotools-dev libgmp-dev libsqlite3-dev python python3 python3-mako libsodium-dev build-essential pkg-config libev-dev libcurl4-gnutls-dev libssl-dev fakeroot devscripts')
      break
    case 'arch':
      try {
        execSync('[[ ! $(pacman -Qg base-devel) ]]')
        execSync('sudo pacman -S base-devel --noconfirm')
      } catch(err) {}
      execSync('source ~/Alchemy/ingredients/lead && install_if_needed python gmp sqlite3 autoconf-archive pkgconf libev python-mako python-pip net-tools zlib libsodium gettext nginx')
      break
    case 'fedora':
      execSync('source ~/Alchemy/ingredients/lead && install_if_needed sqlite3 autoconf autoconf-archive automake python python3 python3-mako pkg-config fakeroot devscripts')
      break
  }
    
  // Install on every OS
  execSync('source ~/Alchemy/ingredients/lead && install_if_needed git wget make')
  try {
    execSync('[ -z $NVM_DIR ]')
    execSync('source ingredients/iron && install_nvm')
    console.log(`Installed nvm.`)
  } catch(err) {}
        
  return true
}

// Sets node to the current version used by the AO
export function setNodeVersion() {
  execSync('source ingredients/iron && set_node_to v16.13.0')
}