require 'json'

require "erb"
include ERB::Util

configuration = JSON.parse(File.read('./vagrant-configuration.json'))

server = {
  :hostname => configuration['machine_name'],
  :box => configuration['box_name'],
  :box_version => configuration['box_version'],
  :disk_size => configuration['disk_size'],
  :ram => 12000,
  :cpu => 5
}

brew_formulas = [
  'autoconf',
  'automake',
  'bison',
  'libtool',
  'mono',
  'pkg-config',
  'yasm' ]

brew_cask_formulas = [
  'powershell',
  'gfortran' ]

azure_agent_url = 'https://vstsagentpackage.azureedge.net/agent/2.171.1/vsts-agent-osx-x64-2.171.1.tar.gz'
devops_url = configuration['devops_url']
agent_pool = configuration['agent_pool']
pat = configuration['pat']
archives = configuration['archives']
archives_username = archives['username']
archives_urn = archives['urn']
archives_path = archives['path']

Vagrant.configure('2') do |config|
  # give them extra time to boot up
  config.vm.boot_timeout = 600

  config.vm.box = server[:box]
  config.vm.box_version = server[:box_version]
  config.vm.hostname = server[:hostname]
  config.vm.synced_folder '.', '/vagrant', disabled: true

  diskname = "#{server[:hostname]}-data.vmdk"

  # I don't like this, but as far as I can tell, it's the only way
  # to do this. When vagrant finishes the `disk` feature, switch
  # over to that -- Nicole Mazzuca
  if (not File.exists? diskname) then
    system "VBoxManage createmedium --filename #{diskname} --size #{1024 * server[:disk_size]}"
  end

  config.vm.provider 'virtualbox' do |vb|
    vb.memory = server[:ram]
    vb.cpus = server[:cpu]
    vb.customize ['modifyvm', :id, '--ioapic', 'on']
    vb.customize ['storageattach', :id,
      '--storagectl', 'SATA Controller',
      '--port', '1', '--device', '0', '--type', 'hdd',
      '--medium', "#{diskname}"
    ]
  end

  config.vm.provision 'shell',
    run: 'once',
    name: 'Format and mount the data filesystem',
    inline: 'diskutil partitionDisk /dev/disk0 1 GPT jhfs+ data 0',
    privileged: true

  config.vm.provision 'shell',
    run: 'once',
    name: 'Link the data filesystem to the home directory',
    inline: "ln -s /Volumes/data ~/Data",
    privileged: false

  config.vm.provision 'shell',
    run: 'once',
    name: 'Download azure agent',
    inline: "curl -s -o ~/Downloads/azure-agent.tar.gz #{azure_agent_url}",
    privileged: false

  config.vm.provision 'shell',
    run: 'once',
    name: 'Unpack azure agent',
    inline: 'mkdir myagent; cd myagent; tar xf ~/Downloads/azure-agent.tar.gz',
    privileged: false

  config.vm.provision 'shell',
    run: 'once',
    name: 'Install brew applications',
    inline: "brew install #{brew_formulas.join(' ')} && brew cask install #{brew_cask_formulas.join(' ')}",
    privileged: false

  config.vm.provision 'shell',
    run: 'once',
    name: 'Create archives mountpoint',
    inline: 'mkdir ~/Data/archives',
    privileged: false

  config.vm.provision "shell",
    run: 'once',
    name: 'Mount archives directory',
    inline: "sshfs #{archives_username}@#{archives_urn}:#{archives_path} ~/Data/archives",
    privileged: false

  config.vm.provision 'shell',
    run: 'once',
    name: 'Add VM to azure agent pool',
    inline: "cd ~/myagent;\
      ./config.sh --unattended \
        --url #{devops_url} \
        --work ~/Data/work \
        --auth pat --token #{pat} \
        --pool #{agent_pool} \
        --agent `hostname` \
        --replace \
        --acceptTeeEula",
    privileged: false

  # Start listening for jobs
  config.vm.provision 'shell',
    run: 'always',
    name: 'Start running azure pipelines',
    inline: 'cd /Users/vagrant/myagent;\
      nohup ./run.sh&',
    privileged: false
end