require 'yaml'
configfile = YAML.load_file('Vagrantfile.yaml')

Vagrant.configure("2") do |config|

  # these two caching methods conflict, so only use one at a time
  if Vagrant.has_plugin?("vagrant-cachier") and not configfile.has_key? "aptcachedir"
    config.cache.scope = :box
    config.cache.auto_detect = false
    config.cache.enable :apt
    config.cache.enable :chef
  end

  config.vm.box = configfile['basebox']
  config.vm.box_url = configfile['baseboxurl']

  # TODO detect if jessie64.box is libvirt, or `vagrant mutate jessie64 libvirt`
  if `systemd-detect-virt`.include? "qemu" or configfile["vm_provider"] == "libvirt"
    # use KVM/QEMU if this is running in KVM/QEMU
    config.vm.provider :libvirt do |libvirt|
      libvirt.driver = "kvm"
      libvirt.host = "localhost"
      libvirt.uri = "qemu:///system"
      libvirt.cpus = configfile["cpus"]
      libvirt.memory = configfile["memory"]
    end
    config.vm.synced_folder './', '/vagrant', type: '9p'
    synced_folder_type = '9p'
  elsif not configfile.has_key? "vm_provider" or configfile["vm_provider"] == "virtualbox"
    # default to VirtualBox if not set
    config.vm.provider "virtualbox" do |v|
      v.customize ["modifyvm", :id, "--memory", configfile['memory']]
      v.customize ["modifyvm", :id, "--cpus", configfile['cpus']]
      v.customize ["modifyvm", :id, "--hwvirtex", configfile['hwvirtex']]
    end
    synced_folder_type = 'virtualbox'
  else
    abort("No supported VM Provider found, set vm_provider in Vagrantfile.yaml!")
  end

  config.vm.boot_timeout = configfile['boot_timeout']

  if configfile.has_key? "aptproxy"
    config.vm.provision :shell, path: "provision-apt-proxy",
      args: [configfile["aptproxy"]]
  end

  # buildserver/ is shared to the VM's /vagrant by default so the old
  # default does not need a custom mount
  if configfile["cachedir"] != "buildserver/cache"
    config.vm.synced_folder configfile["cachedir"], '/vagrant/cache',
      create: true, type: synced_folder_type
  end
  # Make sure dir exists to mount to, since buildserver/ is
  # automatically mounted as /vagrant in the guest VM. This is more
  # necessary with 9p synced folders
  Dir.mkdir('cache') unless File.exists?('cache')

  # cache .deb packages on the host via a mount trick
  if configfile.has_key? "aptcachedir"
    config.vm.synced_folder configfile["aptcachedir"], "/var/cache/apt/archives",
      owner: 'root', group: 'root', create: true
  end

  config.vm.provision "shell", path: "setup-env-vars",
    args: ["/home/vagrant/android-sdk"]
  config.vm.provision "shell", path: "provision-apt-get-install",
    args: [configfile['debian_mirror']]
  config.vm.provision "shell", path: "provision-android-sdk"
  config.vm.provision "shell", path: "provision-android-ndk",
    args: ["/home/vagrant/android-ndk"]
  config.vm.provision "shell", path: "provision-pip",
    args: ["compare-locales"]
  config.vm.provision "shell", path: "provision-gradle"
  config.vm.provision "file", source: "gradle",
    destination: "/opt/gradle/bin/gradle"

  # let Ubuntu/trusty's paramiko work with the VM instance
  if `uname -v`.include? "14.04"
    config.vm.provision "shell", path: "provision-ubuntu-trusty-paramiko"
  end

end