# Author:: Robert Choi
# Cookbook Name:: pacemaker
# Provider:: primitive
#
# Copyright:: 2013, Robert Choi
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

require ::File.join(::File.dirname(__FILE__), 'helper')

# For vagrant env, switch to the following 'require' command.
#require "/srv/chef/file_store/cookbooks/pacemaker/providers/helper"

action :create do
  name = new_resource.name
  agent = new_resource.agent

  return if resource_exists?(name)

  cmd = "crm configure primitive #{name} #{agent}"

  if new_resource.params and !(new_resource.params.empty?)
    cmd << " params"
    new_resource.params.each do |key, value|
      cmd << " #{key}=\"#{value}\""
    end
  end

  if new_resource.meta and !(new_resource.meta.empty?)
    cmd << " meta"
    new_resource.meta.each do |key, value|
      cmd << " #{key}=\"#{value}\""
    end
  end

  if new_resource.op and !(new_resource.op.empty?)
    cmd << " op"
    new_resource.op.each do |op, attrs|
      cmd << " #{op}"
      attrs.each do |key, value|
        cmd << " #{key}=\"#{value}\""
      end
    end
  end

  # 'Execute' resource doesn't throw exception even when command fails..
  # So, Mixlib::ShellOut was used instead.
  cmd_ = Mixlib::ShellOut.new(cmd)
  cmd_.environment['HOME'] = ENV.fetch('HOME', '/root')
  cmd_.run_command
  begin
    cmd_.error!
    if resource_exists?(name)
      new_resource.updated_by_last_action(true)
      Chef::Log.info "Successfully configured primitive '#{name}'."
    else
      Chef::Log.error "Failed to configure primitive #{name}."
    end
  rescue
    Chef::Log.error "Failed to configure primitive #{name}."
  end
end

action :delete do
  name = new_resource.name
  cmd = "crm resource stop #{name}; crm configure delete #{name}"

  e = execute "delete primitive #{name}" do
    command cmd
    only_if { resource_exists?(name) }
  end

  new_resource.updated_by_last_action(true)
  Chef::Log.info "Deleted primitive '#{name}'."
end