ENV['VAGRANT_NO_PARALLEL'] = 'no'
NODE_ROLES = (ENV['E2E_NODE_ROLES'] ||  ["server-0"])
NODE_BOXES = (ENV['E2E_NODE_BOXES'] ||  ['generic/ubuntu2310'])
GITHUB_BRANCH = (ENV['E2E_GITHUB_BRANCH'] || "master")
RELEASE_VERSION = (ENV['E2E_RELEASE_VERSION'] || "")
GOCOVER = (ENV['E2E_GOCOVER'] || "")
NODE_CPUS = (ENV['E2E_NODE_CPUS'] || 2).to_i
NODE_MEMORY = (ENV['E2E_NODE_MEMORY'] || 2048).to_i
# Virtualbox >= 6.1.28 require `/etc/vbox/network.conf` for expanded private networks 
NETWORK_PREFIX = "10.10.10"
install_type = ""

def provision(vm, role, role_num, node_num)
  vm.box = NODE_BOXES[node_num]
  vm.hostname = role
  # An expanded netmask is required to allow VM<-->VM communication, virtualbox defaults to /32
  vm.network "private_network", ip: "#{NETWORK_PREFIX}.#{100+node_num}", netmask: "255.255.255.0"

  vagrant_defaults = '../vagrantdefaults.rb'
  scripts_location = Dir.exists?("./scripts") ? "./scripts" : "../scripts"
  load vagrant_defaults if File.exists?(vagrant_defaults)

  defaultOSConfigure(vm)
  addCoverageDir(vm, role, GOCOVER)

  vm.provision 'k3s-install', type: 'k3s', run: 'once' do |k3s|
    k3s.args = "server "
    k3s.env = %W[K3S_KUBECONFIG_MODE=0644 INSTALL_K3S_SKIP_START=true INSTALL_K3S_SKIP_ENABLE=true]
    k3s.env_owner = "vagrant:vagrant"
    k3s.config_mode = '0644' # side-step https://github.com/k3s-io/k3s/issues/4321
    k3s.config_owner = "vagrant:vagrant"
    k3s.config = <<~YAML
      token: vagrant
      node-external-ip: #{NETWORK_PREFIX}.100
    YAML
  end

  vm.provision "Download k3s-rootless and enable cgroup v2", type: "shell", path: scripts_location + "/setup_rootless.sh"
  vm.provision 'k3s-reload', type: 'reload', run: 'once'
end

Vagrant.configure("2") do |config|
  config.vagrant.plugins = ["vagrant-k3s", "vagrant-reload"]
  # Default provider is libvirt, virtualbox is only provided as a backup
  config.vm.provider "libvirt" do |v|
    v.cpus = NODE_CPUS
    v.memory = NODE_MEMORY
    # We replicate the default prefix, but add a timestamp to enable parallel runs and cleanup of old VMs
    v.default_prefix = File.basename(Dir.getwd) + "_" + Time.now.to_i.to_s + "_"
  end
  config.vm.provider "virtualbox" do |v|
    v.cpus = NODE_CPUS
    v.memory = NODE_MEMORY
  end

  if NODE_ROLES.kind_of?(String)
    NODE_ROLES = NODE_ROLES.split(" ", -1)
  end
  if NODE_BOXES.kind_of?(String)
    NODE_BOXES = NODE_BOXES.split(" ", -1)
  end

  NODE_ROLES.each_with_index do |name, i|
    role_num = role.split("-", -1).pop.to_i
    config.vm.define role do |node|
      provision(node.vm, name, role_num, i)
    end
  end
end