Add account data enrichment (#1532)

* Add data enrichment

* Make data enrichment optional for self-hosters

* Add categories to data enrichment

* Only update category and merchant if nil

* Fix name overrides

* Lint fixes

app/models/account/data_enricher.rb

@@ -0,0 +1,61 @@
+class Account::DataEnricher
+  include Providable
+
+  attr_reader :account
+
+  def initialize(account)
+    @account = account
+  end
+
+  def run
+    enrich_transactions
+  end
+
+  private
+    def enrich_transactions
+      candidates = account.entries.account_transactions.includes(entryable: [ :merchant, :category ])
+
+      Rails.logger.info("Enriching #{candidates.count} transactions for account #{account.id}")
+
+      merchants = {}
+      categories = {}
+
+      candidates.each do |entry|
+        if entry.enriched_at.nil? || entry.entryable.merchant_id.nil? || entry.entryable.category_id.nil?
+          begin
+            info = self.class.synth_provider.enrich_transaction(entry.name).info
+
+            next unless info.present?
+
+            if info.name.present?
+              merchant = merchants[info.name] ||= account.family.merchants.find_or_create_by(name: info.name)
+
+              if info.icon_url.present?
+                merchant.icon_url = info.icon_url
+              end
+            end
+
+            if info.category.present?
+              category = categories[info.category] ||= account.family.categories.find_or_create_by(name: info.category)
+            end
+
+            entryable_attributes = { id: entry.entryable_id }
+            entryable_attributes[:merchant_id] = merchant.id if merchant.present? && entry.entryable.merchant_id.nil?
+            entryable_attributes[:category_id] = category.id if category.present? && entry.entryable.category_id.nil?
+
+            Account.transaction do
+              merchant.save! if merchant.present?
+              category.save! if category.present?
+              entry.update!(
+                enriched_at: Time.current,
+                name: entry.enriched_at.nil? ? info.name : entry.name,
+                entryable_attributes: entryable_attributes
+              )
+            end
+          rescue => e
+            Rails.logger.warn("Error enriching transaction #{entry.id}: #{e.message}")
+          end
+        end
+      end
+    end
+end