require 'json'

require "erb"
include ERB::Util

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

servers = configuration['machine_identifiers'].map do |id|
  {
    :hostname => "#{configuration['base_name']}-#{id}",
    :box => 'ramsey/macos-catalina',
    :ram => 12000,
    :cpu => 5
  }
end

brew_formulas = [
  'autoconf',
  'automake',
  'libtool',
  'bison' ]

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 = 'https://dev.azure.com/vcpkg'
agent_pool = 'vcpkgAgentPool'
pat = configuration['pat']
archives = configuration['archives']
archives_url = "//#{archives['username']}:#{url_encode(archives['access_key'])}@#{archives['url']}/#{archives['share']}"

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

  servers.each do |machine|
    config.vm.define machine[:hostname] do |node|

      node.vm.box = machine[:box]
      node.vm.hostname = machine[:hostname]
      node.vm.synced_folder '.', '/vagrant', disabled: true

      node.vm.disk :disk, name: "#{machine[:hostname]}-data", size: "#{config['disk_size']}GB"

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

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

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

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

      node.vm.provision 'shell',
        run: 'once',
        name: 'Install brew and xcode command line tools',
        inline: '/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"',
        privileged: false

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

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

      node.vm.provision "shell",
        run: 'once',
        name: 'Mount archives directory',
        inline: "mount_smbfs -d 777 -f 777 #{archives_url} ~/Data/archives",
        privileged: false

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