owner-settings-bot

This bot allows an outsider to change the settings for a particular bot. When each bot is created,
a unique passcode is also created to identify it. This passcode is used for this bot.

Annotated Source

Setup for ruby, shebang and library requires

``
#!/usr/bin/env ruby
#
#
require "./lib/greenbot.rb"
require 'mongo'
require 'awesome_print'
`

The bot works directly on the database. A mongo installed on the localhost and named greenbot is the default.

`
MONGO_URL = ENV['MONGO_URL'] || 'mongodb://127.0.0.1:27017/greenbot'
`

Open up the Bots collection in the database, go grab the local bots.

`
client = Mongo::Client.new(MONGO_URL)
Bots = client[:Bots]
`

Authenticate the inbound texter with the passcode, and use that
to get the right bot to work with.

`
pin = ask("To get started, please provide your PIN")
pin.upcase!

bot = Bots.find({passcode: pin.strip}).first

if bot.nil?
say("I'm sorry, I cannot find that bot.")
return
end
`

To make it easier for the texter, use a single letter to identify the settings to update.
We add a sequential letter to the existing record set. We don't persist that in the database.

`
ALPHA = "ABCDEFGHIJKLMNOP"
index = 0
bot['settings'].sort! {|x,y| x['name'] <=> y['name']}
bot['settings'].each do |s|
s['menu_choice'] = ALPHA[index]
index += 1
end
`

Prepare the list of choices to present to the texter.

`
menu_choices = ''
bot['settings'].each do |s|
menu_choices << s['menu_choice'] + ':' + s['name'] + " "
end
menu_choices << "Q:quit"
`

The main loop. We keep looping until somebody says Q.
As the loop goes, collect the choice from the user.
Then, display the current value, and offer a chance to
update it. Keep that up until done.

`
loop do
choice = ask("Please pick the setting to change: #{menu_choices}")
choice.strip!
choice.upcase!
break if choice == 'Q'
setting = bot['settings'].find do |s|
s['menu_choice'].eql?(choice)
end

if setting.nil?
say("I could not find that setting")
else
new_val = ask("The current value is: #{setting['value']}. Please send a single mesasge with the new value, or empty to keep.")
new_val.strip!
Bots.update_one({"$and" => [{ "passcode" => pin.strip}, {"settings.name" => setting['name'] }]}, { '$set' => { "settings.$.value" => new_val }} )
end
end
`

And... we're done.

`
say("Thank you. Session ended.")
``