Files
clientsflow/research/chatwoot/app/services/whatsapp/webhook_setup_service.rb

117 lines
4.0 KiB
Ruby

class Whatsapp::WebhookSetupService
def initialize(channel, waba_id, access_token)
@channel = channel
@waba_id = waba_id
@access_token = access_token
@api_client = Whatsapp::FacebookApiClient.new(access_token)
end
def perform
validate_parameters!
# Register phone number if either condition is met:
# 1. Phone number is not verified (code_verification_status != 'VERIFIED')
# 2. Phone number needs registration (pending provisioning state)
register_phone_number if !phone_number_verified? || phone_number_needs_registration?
setup_webhook
end
private
def validate_parameters!
raise ArgumentError, 'Channel is required' if @channel.blank?
raise ArgumentError, 'WABA ID is required' if @waba_id.blank?
raise ArgumentError, 'Access token is required' if @access_token.blank?
end
def register_phone_number
phone_number_id = @channel.provider_config['phone_number_id']
pin = fetch_or_create_pin
@api_client.register_phone_number(phone_number_id, pin)
store_pin(pin)
rescue StandardError => e
Rails.logger.warn("[WHATSAPP] Phone registration failed but continuing: #{e.message}")
# Continue with webhook setup even if registration fails
# This is just a warning, not a blocking error
end
def fetch_or_create_pin
# Check if we have a stored PIN for this phone number
existing_pin = @channel.provider_config['verification_pin']
return existing_pin.to_i if existing_pin.present?
# Generate a new 6-digit PIN if none exists
SecureRandom.random_number(900_000) + 100_000
end
def store_pin(pin)
# Store the PIN in provider_config for future use
@channel.provider_config['verification_pin'] = pin
@channel.save!
end
def setup_webhook
callback_url = build_callback_url
verify_token = @channel.provider_config['webhook_verify_token']
@api_client.subscribe_waba_webhook(@waba_id, callback_url, verify_token)
rescue StandardError => e
Rails.logger.error("[WHATSAPP] Webhook setup failed: #{e.message}")
raise "Webhook setup failed: #{e.message}"
end
def build_callback_url
frontend_url = ENV.fetch('FRONTEND_URL', nil)
phone_number = @channel.phone_number
"#{frontend_url}/webhooks/whatsapp/#{phone_number}"
end
def phone_number_verified?
phone_number_id = @channel.provider_config['phone_number_id']
# Check with WhatsApp API if the phone number code verification is complete
# This checks code_verification_status == 'VERIFIED'
verified = @api_client.phone_number_verified?(phone_number_id)
Rails.logger.info("[WHATSAPP] Phone number #{phone_number_id} code verification status: #{verified}")
verified
rescue StandardError => e
# If verification check fails, assume not verified to be safe
Rails.logger.error("[WHATSAPP] Phone verification status check failed: #{e.message}")
false
end
def phone_number_needs_registration?
# Check if phone is in pending provisioning state based on health data
# This is a separate check from phone_number_verified? which only checks code verification
phone_number_in_pending_state?
rescue StandardError => e
Rails.logger.error("[WHATSAPP] Phone registration check failed: #{e.message}")
# Conservative approach: don't register if we can't determine the state
false
end
def phone_number_in_pending_state?
health_service = Whatsapp::HealthService.new(@channel)
health_data = health_service.fetch_health_status
# Check if phone number is in "not provisioned" state based on health indicators
# These conditions indicate the number is pending and needs registration:
# - platform_type: "NOT_APPLICABLE" means not fully set up
# - throughput.level: "NOT_APPLICABLE" means no messaging capacity assigned
health_data[:platform_type] == 'NOT_APPLICABLE' ||
health_data.dig(:throughput, :level) == 'NOT_APPLICABLE'
rescue StandardError => e
Rails.logger.error("[WHATSAPP] Health status check failed: #{e.message}")
# If health check fails, assume registration is not needed to avoid errors
false
end
end