Restructure omni services and add Chatwoot research snapshot

research/chatwoot/lib/opentelemetry_config.rb

@@ -0,0 +1,91 @@
+require 'opentelemetry/sdk'
+require 'opentelemetry/exporter/otlp'
+require 'base64'
+
+module OpentelemetryConfig
+  class << self
+    def tracer
+      initialize! unless initialized?
+      OpenTelemetry.tracer_provider.tracer('chatwoot')
+    end
+
+    def initialized?
+      @initialized ||= false
+    end
+
+    def initialize!
+      return if @initialized
+      return mark_initialized unless langfuse_provider?
+      return mark_initialized unless langfuse_credentials_present?
+
+      configure_opentelemetry
+      mark_initialized
+    rescue StandardError => e
+      Rails.logger.error "Failed to configure OpenTelemetry: #{e.message}"
+      mark_initialized
+    end
+
+    def reset!
+      @initialized = false
+    end
+
+    private
+
+    def mark_initialized
+      @initialized = true
+    end
+
+    def langfuse_provider?
+      otel_provider = InstallationConfig.find_by(name: 'OTEL_PROVIDER')&.value
+      otel_provider == 'langfuse'
+    end
+
+    def langfuse_credentials_present?
+      endpoint = InstallationConfig.find_by(name: 'LANGFUSE_BASE_URL')&.value
+      public_key = InstallationConfig.find_by(name: 'LANGFUSE_PUBLIC_KEY')&.value
+      secret_key = InstallationConfig.find_by(name: 'LANGFUSE_SECRET_KEY')&.value
+
+      if endpoint.blank? || public_key.blank? || secret_key.blank?
+        Rails.logger.error 'OpenTelemetry disabled (LANGFUSE_BASE_URL, LANGFUSE_PUBLIC_KEY or LANGFUSE_SECRET_KEY is missing)'
+        return false
+      end
+
+      true
+    end
+
+    def langfuse_credentials
+      {
+        endpoint: InstallationConfig.find_by(name: 'LANGFUSE_BASE_URL')&.value,
+        public_key: InstallationConfig.find_by(name: 'LANGFUSE_PUBLIC_KEY')&.value,
+        secret_key: InstallationConfig.find_by(name: 'LANGFUSE_SECRET_KEY')&.value
+      }
+    end
+
+    def traces_endpoint
+      credentials = langfuse_credentials
+      "#{credentials[:endpoint]}/api/public/otel/v1/traces"
+    end
+
+    def exporter_config
+      credentials = langfuse_credentials
+      auth_header = Base64.strict_encode64("#{credentials[:public_key]}:#{credentials[:secret_key]}")
+
+      config = {
+        endpoint: traces_endpoint,
+        headers: { 'Authorization' => "Basic #{auth_header}" }
+      }
+
+      config[:ssl_verify_mode] = OpenSSL::SSL::VERIFY_NONE if Rails.env.development?
+      config
+    end
+
+    def configure_opentelemetry
+      OpenTelemetry::SDK.configure do |c|
+        c.service_name = 'chatwoot'
+        exporter = OpenTelemetry::Exporter::OTLP::Exporter.new(**exporter_config)
+        c.add_span_processor(OpenTelemetry::SDK::Trace::Export::BatchSpanProcessor.new(exporter))
+        Rails.logger.info 'OpenTelemetry initialized and configured to export to Langfuse'
+      end
+    end
+  end
+end