# == Defined type: drush::install
#
# Installs a Drush version with the given method.
#
# === Parameters
#
# [*version*]
#   Drush release to install. Example: 7, 6.6, master.
#
# [*install_type*]
#   Install distribution package or source code.
#   Valid values: 'dist', 'source'. Defaults to 'dist'.
#
# [*autoupdate*]
#   Try and install new versions automatically. Defaults to false.
#
# [*method*]
#   Installation method. It only accepts composer at present.
#
define drush::install(
  $version,
  $install_type = 'dist',
  $autoupdate   = false,
  $method       = 'composer',
) {

  $install_types = [ 'dist', 'source' ]
  if ! ($install_type in $install_types) {
    fail("'${install_type}' is not a valid value for creation_mode. Valid values: ${install_types}.")
  }


  # Pick major version.
  $parts = split($version, '[.]')
  $version_major = $parts[0]

  $drush        = "drush${version_major}"
  $drush_exe    = "/usr/local/bin/${drush}"
  $install_path = "${drush::install_base_path}/${version_major}"

  case $method {
    'composer': {
      drush::install::composer { $drush:
        autoupdate   => $autoupdate,
        version      => $version,
        install_path => $install_path,
        install_type => $install_type,
        notify       => Exec["${drush}-first-run"],
      }
      file { $drush_exe:
        ensure  => link,
        target  => "${install_path}/vendor/bin/drush",
        require => Drush::Install::Composer[$drush],
      }
    }
    default: {
      fail("Unknown install method: '${method}'.")
    }
  }

  exec { "${drush}-first-run":
    command     => "/usr/bin/su - -c '${drush_exe} status'",
    require     => File[$drush_exe],
    refreshonly => true,
  }

}