Log ImmunisationImport events

Co-authored-by: James Mead <james.mead@gofreerange.com>

Author: floehopper

app/models/immunisation_import.rb

@@ -44,6 +44,8 @@ class ImmunisationImport < ApplicationRecord
   has_and_belongs_to_many :sessions
   has_and_belongs_to_many :vaccination_records
 
+  after_create :log_started
+
   def type_label
     "Vaccination records"
   end
@@ -89,6 +91,7 @@ def process!
     post_commit!
 
     update_columns(processed_at: Time.zone.now, status: :processed, **counts)
+    log_finished
   end
 
   private
@@ -224,4 +227,18 @@ def post_commit!
 
     TeamCachedCounts.new(team).reset_import_issues!
   end
+
+  def log_started
+    with_logger_tags { logger.info("started", started_at: created_at) }
+  end
+
+  def log_finished
+    with_logger_tags do
+      logger.info("finished", finished_at: processed_at, row_count: rows.count)
+    end
+  end
+
+  def with_logger_tags(&)
+    SemanticLogger.tagged(import_class: model_name.to_s, import_id: id, &)
+  end
 end