Account Activity View + Account Forms (#1406)

* Remove balance mode, sketch out refactor

* Activity view checkpoint

* Entry partials, checkpoint

* Finish txn partial

* Give entries context when editing for different turbo responses

* Calculate change of balance for each entry

* Account tabs consolidation

* Translations, linting, brakeman updates

* Account actions concern

* Finalize forms, get account system tests passing

* Get tests passing

* Lint, rubocop, schema updates

* Improve routing and stream responses

* Fix broken routes

* Add import option for adding accounts

* Fix system test

* Fix test specificity

* Fix sparklines

* Improve account redirects

app/models/account/valuation.rb

@@ -10,4 +10,44 @@ class Account::Valuation < ApplicationRecord
       false
     end
   end
+
+  def name
+    oldest? ? "Initial balance" : entry.name || "Balance update"
+  end
+
+  def trend
+    @trend ||= create_trend
+  end
+
+  def icon
+    oldest? ? "plus" : entry.trend.icon
+  end
+
+  def color
+    oldest? ? "#D444F1" : entry.trend.color
+  end
+
+  private
+    def oldest?
+      @oldest ||= account.entries.where("date < ?", entry.date).empty?
+    end
+
+    def account
+      @account ||= entry.account
+    end
+
+    def create_trend
+      TimeSeries::Trend.new(
+        current: entry.amount_money,
+        previous: prior_balance&.balance_money,
+        favorable_direction: account.favorable_direction
+      )
+    end
+
+    def prior_balance
+      @prior_balance ||= account.balances
+                               .where("date < ?", entry.date)
+                               .order(date: :desc)
+                               .first
+    end
 end