# One Vagrantfile to rule them all!
#
# This is a generic Vagrantfile that can be used without modification in
# a variety of situations. Hosts and their properties are specified in
# `vagrant-hosts.yml`. Provisioning is done by an Ansible playbook,
# `ansible/site.yml`.
#
# See https://github.com/bertvv/ansible-skeleton/ for details

require 'rbconfig'
require 'yaml'

# set default LC_ALL for all BOXES
ENV["LC_ALL"] = "en_US.UTF-8"

# Set your default base box here
DEFAULT_BASE_BOX = 'bento/centos-7.6'

# When set to `true`, Ansible will be forced to be run locally on the VM
# instead of from the host machine (provided Ansible is installed).
FORCE_LOCAL_RUN = false

#
# No changes needed below this point
#

VAGRANTFILE_API_VERSION = '2'
PROJECT_NAME = '/' + File.basename(Dir.getwd)

# set custom vagrant-hosts file
vagrant_hosts = ENV['VAGRANT_HOSTS'] ? ENV['VAGRANT_HOSTS'] : 'vagrant-hosts.yml'
hosts = YAML.load_file(File.join(__dir__, vagrant_hosts))

vagrant_groups = ENV['VAGRANT_GROUPS'] ? ENV['VAGRANT_GROUPS'] : 'vagrant-groups.yml'
groups = YAML.load_file(File.join(__dir__, vagrant_groups))

# {{{ Helper functions

def run_locally?
  windows_host? || FORCE_LOCAL_RUN
end

def windows_host?
  Vagrant::Util::Platform.windows?
end

# Set options for the network interface configuration. All values are
# optional, and can include:
# - ip (default = DHCP)
# - netmask (default value = 255.255.255.0
# - mac
# - auto_config (if false, Vagrant will not configure this network interface
# - intnet (if true, an internal network adapter will be created instead of a
#   host-only adapter)
def network_options(host)
  options = {}

  if host.key?('ip')
    options[:ip] = host['ip']
    options[:netmask] = host['netmask'] ||= '255.255.255.0'
  else
    options[:type] = 'dhcp'
  end

  options[:mac] = host['mac'].gsub(/[-:]/, '') if host.key?('mac')
  options[:auto_config] = host['auto_config'] if host.key?('auto_config')
  options[:virtualbox__intnet] = true if host.key?('intnet') && host['intnet']
  options
end

def custom_synced_folders(vm, host)
  return unless host.key?('synced_folders')
  folders = host['synced_folders']

  folders.each do |folder|
    vm.synced_folder folder['src'], folder['dest'], folder['options']
  end
end

# }}}


# Set options for shell provisioners to be run always. If you choose to include
# it you have to add a cmd variable with the command as data.
#
# Use case: start symfony dev-server
#
# example:
# shell_always:
#   - cmd: php /srv/google-dev/bin/console server:start 192.168.52.25:8080 --force
def shell_provisioners_always(vm, host)
  if host.has_key?('shell_always')
    scripts = host['shell_always']

    scripts.each do |script|
      vm.provision "shell", inline: script['cmd'], run: "always"
    end
  end
end

# }}}

# Adds forwarded ports to your Vagrant machine
#
# example:
#  forwarded_ports:
#    - guest: 88
#      host: 8080
def forwarded_ports(vm, host)
  if host.has_key?('forwarded_ports')
    ports = host['forwarded_ports']

    ports.each do |port|
      vm.network "forwarded_port", **{
        guest: port['guest'],
        host: port['host']
      }.merge(VAGRANT_NETWORK_OPTIONS)
    end
  end
end

def provision_ansible(node, host, groups)
  ansible_mode = run_locally? ? 'ansible_local' : 'ansible'
  node.vm.provision ansible_mode do |ansible|
    ansible.compatibility_mode = '2.0'
    if ! groups.nil?
      ansible.groups = groups
    end
    ansible.playbook = host.key?('playbook') ?
        "ansible/#{host['playbook']}" :
        "ansible/site.yml"
    ansible.become = true
  end
end

# }}}

Vagrant.configure(VAGRANTFILE_API_VERSION) do |config|
  
  hosts.each do |host|
    config.vm.define host['name'] do |node|
      node.vm.box = host['box'] ||= DEFAULT_BASE_BOX
      node.vm.box_url = host['box_url'] if host.key? 'box_url'

      node.vm.hostname = host['name']
      node.vm.network :private_network, **network_options(host)
      custom_synced_folders(node.vm, host)
      shell_provisioners_always(node.vm, host)
      forwarded_ports(node.vm, host)

      node.vm.provider :virtualbox do |vb|
        vb.memory = host['memory'] if host.key? 'memory'
        vb.cpus = host['cpus'] if host.key? 'cpus'

        # Add VM to a VirtualBox group
        # WARNING: if the name of the current directory is the same as the
        # host name, this will fail.
        vb.customize ['modifyvm', :id, '--groups', PROJECT_NAME]
      end

      # Ansible provisioning
      provision_ansible(node, host, groups)
    end
  end
end

# -*- mode: ruby -*-
# vi: ft=ruby :