gistfile1.txt

	# SMS voucher system
	def voucher
		p = params

		twilio_number = "+441257733073"

		# Removes the +44 and replaces it with 0
		number = p["From"].gsub("+44", "0")

		# Splits "wormer 1" and "wormer1"
		body = p["Body"].split(/(\d+)/)

		# Finds the client
		# .gsub(" ", "")  --  removes any spaces
		# .sub(/(\d{5})(\d{6})/, "\\1 \\2")  --  parses the number with a space like 01234 567890
		@client = Client.all.select{|c| c.Mobile_Number =~ /#{number.gsub(" ", "")}/}.first || Client.all.select{|c| c.Mobile_Number =~ /#{number.sub(/(\d{5})(\d{6})/, "\\1 \\2")}/}.first

		# If there isn't a client found
		unless @client
			# The number doesn't exist in the database so send the client a message saying so.
			message = TWILIO_CLIENT.account.sms.messages.create(
				from: twilio_number, to: number,
				body: "Sorry, we don't recognise your number. Please call us on 01257 262448 so we can add your number to your account. Thanks, Hillcrest Animal Hospital"
			)
		end

		
		# If the client can't request a voucher
		if @client && !@client.can_request_voucher?
			if @client.vouchers.where(claimed: false).count > 0
				# Send a message when the client has an existing voucher that hasn't been claimed
				message = TWILIO_CLIENT.account.sms.messages.create(
					from: twilio_number, to: number,
					body: "It appears you currently have a voucher that hasn't been used yet. You can only have one voucher at a time."
				)
			elsif DateTime.now < @client.vouchers.last.expires_at
				# Send a message when the client can't request a voucher within 3 months
				message = TWILIO_CLIENT.account.sms.messages.create(
					from: twilio_number, to: number,
					body: "Sorry, you cannot claim more than 1 voucher in any 3 month period."
				)
			end
		end


		# If there is a client and they can request a voucher
		if @client && @client.can_request_voucher?

			# Find animals that belong to any of the healthplans
			# And only show alive animals
			#   HS - Silver Healthplan
			#   HG - Gold Healthplan
			#   HP - Platinum Healthplan
			@animals = @client.animals.where(status: ["HS", "HG", "HP"]).where(dead: "Alive")

			# If there is a pet name after "WORMER"
			if body.second.present?
				if body.second.to_i != 0
					# Creates a hash using the animals_hash on the client model
					hash = @client.animals_hash(@animals)

					# Pick the animal
					@animal = hash[body.second.to_i]

					# Can the client request a voucher for the selected animal?
					if @client.can_request_voucher_for_animal?(@animal)
						# Yes so create and send the voucher!
						send_voucher(twilio_number, number) if @animal
					else
						# Send the client a message saying they can't request one
						message = TWILIO_CLIENT.account.sms.messages.create(
							from: twilio_number, to: number,
							body: "Sorry, you cannot claim more than 1 voucher in any 3 month period."
						)
					end

				end

			# If the first string is "WORMER". "Wormer" and "wormer" will be converted to uppercase.
			elsif body.first.strip.upcase == "WORMER"
				# The client exists in the database and has an animal so find the animals that have a healthplan

				if @animals.count == 0
					# The client has no animals that are on a healthplan
					message = TWILIO_CLIENT.account.sms.messages.create(
						from: twilio_number, to: number,
						body: "We've noticed that none of your animals are currently on our Healthplan. If you think this is incorrect, please contact us."
					)

				elsif @animals.count > 1

					# Creates the hash using a method on the client model
					hash = @client.animals_hash(@animals)

					# Returns the hash as "1 for Max, 2 for Rio, 3 for Someone"
					names_joined = hash.map{ |k, v| "#{k} for #{v.AnimalName}" }.join(", ")

					# If a Client has more than 1 animal, send a message to them with a request to include the number of the pet
					message = TWILIO_CLIENT.account.sms.messages.create(
						from: twilio_number, to: number,
						body: "We've noticed that you have more than one pet on a healthplan. Please reply with WORMER followed by #{names_joined}"
					)
				
				elsif @animals.count == 1
					# If not, use the first animal, create a voucher and sent it to the client
					@animal = @animals.first

					send_voucher(twilio_number, number)
				end
			end

		end

		render text: "Success"
	end


	private

	# This sends the voucher
	def send_voucher(twilio_number, number)
		@voucher = Voucher.create(client_id: @client.ClientKey, animal_id: @animal.id)
		
		# Send an SMS with the voucher code
		message = TWILIO_CLIENT.account.sms.messages.create(
			from: twilio_number, to: number,
			body: "Your voucher for #{@animal.AnimalName}'s flea/wormer is #{@voucher.code}. Please present this code at any of our branches."
		)

		# # Send an SMS saying about the animals weight
		# message = TWILIO_CLIENT.account.sms.messages.create(
		# 	from: twilio_number, to: number,
		# 	body: "The last recorded weight of #{@animal.AnimalName} is #{@animal.Weight}kgs. If you think this is wrong then please let us know #{@animal.Sex == 'Male' ? 'his' : 'her'} weight."
		# )
	end


	# Renders nothing if the From param isn't found
	def check_from
		render nothing: true if !params["From"]
	end