require 'cisco_spark'

# defaults to posting a diff, if messageformat is supplied them a message will be posted too
# diffenable defaults to true
# Modified from slackdiff

class CiscoSparkDiff < Oxidized::Hook
  def validate_cfg!
    raise KeyError, 'hook.accesskey is required' unless cfg.has_key?('accesskey')
    raise KeyError, 'hook.space is required' unless cfg.has_key?('space')
  end

  def run_hook(ctx)
    return unless ctx.node
    return unless ctx.event.to_s == "post_store"

    log "Connecting to Cisco Spark"
    CiscoSpark.configure do |config|
      config.api_key = cfg.accesskey
      config.proxy = cfg.proxy if cfg.has_key?('proxy')
    end
    space = cfg.space
    client = CiscoSpark::Room.new(id: space)
    client.fetch
    log "Connected"
    diffenable = true
    if cfg.has_key?('diff') == true
      if cfg.diff == false
        diffenable = false
      end
    end
    if diffenable == true
      gitoutput = ctx.node.output.new
      diff = gitoutput.get_diff ctx.node, ctx.node.group, ctx.commitref, nil
      title = ctx.node.name.to_s
      log "Posting diff as snippet to #{cfg.space}"
      message = CiscoSpark::Message.new(text: 'Device ' + title + ' modified:' + "\n" + diff[:patch].lines.to_a[4..-1].join)
      room = CiscoSpark::Room.new(id: space)
      room.send_message(message)
    end
    if cfg.has_key?('message') == true
      log cfg.message
      msg = cfg.message % { :node => ctx.node.name.to_s, :group => ctx.node.group.to_s, :commitref => ctx.commitref, :model => ctx.node.model.class.name.to_s.downcase }
      log msg
      log "Posting message to #{cfg.space}"
      client.chat_postMessage(channel: cfg.channel, text: msg, as_user: true)
    end
    log "Finished"
  end
end