Add loan and credit card views (maybe-finance#1268)

* Add loan and credit card views

* Lint fix

* Clean up overview card markup

* Lint fix

* Test fix

app/controllers/accounts_controller.rb

@@ -41,14 +41,11 @@ def show
   end
 
   def edit
+    @account.accountable.build_address if @account.accountable.is_a?(Property) && @account.accountable.address.blank?
   end
 
   def update
-    Account.transaction do
-      @account.update! account_params.except(:accountable_type, :balance)
-      @account.update_balance!(account_params[:balance]) if account_params[:balance]
-    end
-    @account.sync_later
+    @account.update_with_sync!(account_params)
     redirect_back_or_to account_path(@account), notice: t(".success")
   end
 

app/controllers/credit_cards_controller.rb

@@ -0,0 +1,41 @@
+class CreditCardsController < ApplicationController
+  before_action :set_account, only: :update
+
+  def create
+    account = Current.family
+                     .accounts
+                     .create_with_optional_start_balance! \
+                       attributes: account_params.except(:start_date, :start_balance),
+                       start_date: account_params[:start_date],
+                       start_balance: account_params[:start_balance]
+
+    account.sync_later
+    redirect_to account, notice: t(".success")
+  end
+
+  def update
+    @account.update_with_sync!(account_params)
+    redirect_to @account, notice: t(".success")
+  end
+
+  private
+
+    def set_account
+      @account = Current.family.accounts.find(params[:id])
+    end
+
+    def account_params
+      params.require(:account)
+        .permit(
+          :name, :balance, :start_date, :start_balance, :currency, :accountable_type,
+          accountable_attributes: [
+            :id,
+            :available_credit,
+            :minimum_payment,
+            :apr,
+            :annual_fee,
+            :expiration_date
+          ]
+        )
+    end
+end

app/controllers/loans_controller.rb

@@ -0,0 +1,39 @@
+class LoansController < ApplicationController
+  before_action :set_account, only: :update
+
+  def create
+    account = Current.family
+                     .accounts
+                     .create_with_optional_start_balance! \
+                       attributes: account_params.except(:start_date, :start_balance),
+                       start_date: account_params[:start_date],
+                       start_balance: account_params[:start_balance]
+
+    account.sync_later
+    redirect_to account, notice: t(".success")
+  end
+
+  def update
+    @account.update_with_sync!(account_params)
+    redirect_to @account, notice: t(".success")
+  end
+
+  private
+
+    def set_account
+      @account = Current.family.accounts.find(params[:id])
+    end
+
+    def account_params
+      params.require(:account)
+        .permit(
+          :name, :balance, :start_date, :start_balance, :currency, :accountable_type,
+          accountable_attributes: [
+            :id,
+            :rate_type,
+            :interest_rate,
+            :term_months
+          ]
+        )
+    end
+end

app/controllers/properties_controller.rb

@@ -14,8 +14,7 @@ def create
   end
 
   def update
-    @account.update!(account_params)
-    @account.sync_later
+    @account.update_with_sync!(account_params)
     redirect_to @account, notice: t(".success")
   end
 

app/controllers/vehicles_controller.rb

@@ -14,8 +14,7 @@ def create
   end
 
   def update
-    @account.update!(account_params)
-    @account.sync_later
+    @account.update_with_sync!(account_params)
     redirect_to @account, notice: t(".success")
   end
 

app/helpers/accounts_helper.rb

@@ -1,4 +1,9 @@
 module AccountsHelper
+  def summary_card(title:, &block)
+    content = capture(&block)
+    render "accounts/summary_card", title: title, content: content
+  end
+
   def to_accountable_title(accountable)
     accountable.model_name.human
   end
@@ -31,6 +36,10 @@ def new_account_form_url(account)
       properties_path
     when "Vehicle"
       vehicles_path
+    when "Loan"
+      loans_path
+    when "CreditCard"
+      credit_cards_path
     else
       accounts_path
     end
@@ -42,6 +51,10 @@ def edit_account_form_url(account)
       property_path(account)
     when "Vehicle"
       vehicle_path(account)
+    when "Loan"
+      loan_path(account)
+    when "CreditCard"
+      credit_card_path(account)
     else
       account_path(account)
     end
@@ -58,6 +71,7 @@ def account_tabs(account)
     return [ value_tab ] if account.other_asset? || account.other_liability?
     return [ overview_tab, value_tab ] if account.property? || account.vehicle?
     return [ holdings_tab, cash_tab, trades_tab ] if account.investment?
+    return [ overview_tab, value_tab, transactions_tab ] if account.loan? || account.credit_card?
 
     [ value_tab, transactions_tab ]
   end

app/helpers/application_helper.rb

@@ -137,12 +137,16 @@ def period_label(period)
   end
 
   def format_money(number_or_money, options = {})
+    return nil unless number_or_money
+
     money = Money.new(number_or_money)
     options.reverse_merge!(money.format_options(I18n.locale))
     number_to_currency(money.amount, options)
   end
 
   def format_money_without_symbol(number_or_money, options = {})
+    return nil unless number_or_money
+
     money = Money.new(number_or_money)
     options.reverse_merge!(money.format_options(I18n.locale))
     ActiveSupport::NumberHelper.number_to_delimited(money.amount.round(options[:precision] || 0), { delimiter: options[:delimiter], separator: options[:separator] })

app/models/account.rb

@@ -82,6 +82,10 @@ def create_with_optional_start_balance!(attributes:, start_date: nil, start_bala
     end
   end
 
+  def original_balance
+    balances.chronological.first&.balance || balance
+  end
+
   def owns_ticker?(ticker)
     security_id = Security.find_by(ticker: ticker)&.id
     entries.account_trades
@@ -93,6 +97,15 @@ def favorable_direction
     classification == "asset" ? "up" : "down"
   end
 
+  def update_with_sync!(attributes)
+    transaction do
+      update!(attributes)
+      update_balance!(attributes[:balance]) if attributes[:balance]
+    end
+
+    sync_later
+  end
+
   def update_balance!(balance)
     valuation = entries.account_valuations.find_by(date: Date.current)
 

app/models/address.rb

@@ -1,9 +1,6 @@
 class Address < ApplicationRecord
   belongs_to :addressable, polymorphic: true
 
-  validates :line1, :locality, presence: true
-  validates :postal_code, presence: true, if: :postal_code_required?
-
   def to_s
     I18n.t("address.format",
       line1: line1,
@@ -15,10 +12,4 @@ def to_s
       postal_code: postal_code
     )
   end
-
-    private
-
-      def postal_code_required?
-        country.in?(%w[US CA GB])
-      end
 end

app/models/concerns/accountable.rb

@@ -28,7 +28,7 @@ def series(period: Period.all, currency: account.currency)
     if balance_series.empty? && period.date_range.end == Date.current
       TimeSeries.new([ { date: Date.current, value: account.balance_money.exchange_to(currency) } ])
     else
-      TimeSeries.from_collection(balance_series, :balance_money)
+      TimeSeries.from_collection(balance_series, :balance_money, favorable_direction: account.asset? ? "up" : "down")
     end
   rescue Money::ConversionError
     TimeSeries.new([])

app/models/loan.rb

@@ -1,3 +1,15 @@
 class Loan < ApplicationRecord
   include Accountable
+
+  def monthly_payment
+    return nil if term_months.nil? || interest_rate.nil? || rate_type.nil? || rate_type != "fixed"
+    return Money.new(0, account.currency) if account.original_balance.zero? || term_months.zero?
+
+    annual_rate = interest_rate / 100.0
+    monthly_rate = annual_rate / 12.0
+
+    payment = (account.original_balance * monthly_rate * (1 + monthly_rate)**term_months) / ((1 + monthly_rate)**term_months - 1)
+
+    Money.new(payment.round, account.currency)
+  end
 end

app/models/time_series.rb

@@ -3,14 +3,14 @@ class TimeSeries
 
   attr_reader :values, :favorable_direction
 
-  def self.from_collection(collection, value_method)
+  def self.from_collection(collection, value_method, favorable_direction: "up")
     collection.map do |obj|
       {
         date: obj.date,
         value: obj.public_send(value_method),
         original: obj
       }
-    end.then { |data| new(data) }
+    end.then { |data| new(data, favorable_direction: favorable_direction) }
   end
 
   def initialize(data, favorable_direction: "up")

app/views/accounts/_overview.html.erb

@@ -1,3 +1,3 @@
 <%# locals: (account:) %>
 
-<%= render partial: "accounts/accountables/#{account.accountable_type.downcase}/overview", locals: { account: account } %>
+<%= render partial: "accounts/accountables/#{account.accountable_type.underscore}/overview", locals: { account: account } %>

app/views/accounts/_summary_card.html.erb

@@ -0,0 +1,8 @@
+<%# locals: (title:, content:) %>
+
+<div class="rounded-xl bg-white shadow-xs border border-alpha-black-25 p-4">
+  <h4 class="text-gray-500 text-sm"><%= title %></h4>
+  <p class="text-xl font-medium text-gray-900">
+    <%= content %>
+  </p>
+</div>

app/views/accounts/accountables/_credit_card.html.erb

@@ -0,0 +1,21 @@
+<div>
+  <hr class="my-4">
+
+  <div class="space-y-2">
+    <%= f.fields_for :accountable do |credit_card_form| %>
+      <div class="flex items-center gap-2">
+        <%= credit_card_form.text_field :available_credit, label: t(".available_credit"), placeholder: t(".available_credit_placeholder") %>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <%= credit_card_form.text_field :minimum_payment, label: t(".minimum_payment"), placeholder: t(".minimum_payment_placeholder") %>
+        <%= credit_card_form.text_field :apr, label: t(".apr"), placeholder: t(".apr_placeholder") %>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <%= credit_card_form.date_field :expiration_date, label: t(".expiration_date") %>
+        <%= credit_card_form.text_field :annual_fee, label: t(".annual_fee"), placeholder: t(".annual_fee_placeholder") %>
+      </div>
+    <% end %>
+  </div>
+</div>

app/views/accounts/accountables/_loan.html.erb

@@ -0,0 +1,16 @@
+<div>
+  <hr class="my-4">
+
+  <div class="space-y-2">
+    <%= f.fields_for :accountable do |loan_form| %>
+      <div class="flex items-center gap-2">
+        <%= loan_form.text_field :interest_rate, label: t(".interest_rate"), placeholder: t(".interest_rate_placeholder") %>
+        <%= loan_form.select :rate_type, options_for_select([["Fixed", "fixed"], ["Variable", "variable"], ["Adjustable", "adjustable"]]), { label: t(".rate_type") } %>
+      </div>
+
+      <div class="flex items-center gap-2">
+        <%= loan_form.number_field :term_months, label: t(".term_months"), placeholder: t(".term_months_placeholder") %>
+      </div>
+    <% end %>
+  </div>
+</div>

app/views/accounts/accountables/_property.html.erb

@@ -3,6 +3,8 @@
 <div>
   <hr class="my-4">
 
+  <h3 class="my-4 font-medium"><%= t(".additional_info") %> (<%= t(".optional") %>)</h3>
+
   <div class="space-y-2">
     <%= f.fields_for :accountable do |af| %>
       <div class="flex gap-2">
@@ -15,18 +17,18 @@
 
       <%= af.fields_for :address do |address_form| %>
         <div class="flex gap-2">
-          <%= address_form.text_field :line1, label: t(".line1"), placeholder: "123 Main St", required: true %>
+          <%= address_form.text_field :line1, label: t(".line1"), placeholder: "123 Main St" %>
           <%= address_form.text_field :line2, label: t(".line2"), placeholder: "Apt 1" %>
         </div>
 
         <div class="flex gap-2">
-          <%= address_form.text_field :locality, label: t(".city"), placeholder: "Sacramento", required: true %>
-          <%= address_form.text_field :region, label: t(".state"), placeholder: "CA", required: true %>
+          <%= address_form.text_field :locality, label: t(".city"), placeholder: "Sacramento" %>
+          <%= address_form.text_field :region, label: t(".state"), placeholder: "CA" %>
         </div>
 
         <div class="flex gap-2">
           <%= address_form.text_field :postal_code, label: t(".postal_code"), placeholder: "95814" %>
-          <%= address_form.text_field :country, label: t(".country"), placeholder: "USA", required: true %>
+          <%= address_form.text_field :country, label: t(".country"), placeholder: "USA" %>
         </div>
       <% end %>
     <% end %>

app/views/accounts/accountables/credit_card/_overview.html.erb

@@ -0,0 +1,27 @@
+<%# locals: (account:) %>
+
+<div class="grid grid-cols-3 gap-2">
+  <%= summary_card title: t(".amount_owed") do %>
+    <%= format_money(account.balance) %>
+  <% end %>
+
+  <%= summary_card title: t(".available_credit") do %>
+    <%= format_money(account.credit_card.available_credit) || t(".unknown") %>
+  <% end %>
+
+  <%= summary_card title: t(".minimum_payment") do %>
+    <%= format_money(account.credit_card.minimum_payment) || t(".unknown") %>
+  <% end %>
+
+  <%= summary_card title: t(".apr") do %>
+    <%= account.credit_card.apr ? number_to_percentage(account.credit_card.apr, precision: 2) : t(".unknown") %>
+  <% end %>
+
+  <%= summary_card title: t(".expiration_date") do %>
+    <%= account.credit_card.expiration_date ? l(account.credit_card.expiration_date, format: :long) : t(".unknown") %>
+  <% end %>
+
+  <%= summary_card title: t(".annual_fee") do %>
+    <%= format_money(account.credit_card.annual_fee) || t(".unknown") %>
+  <% end %>
+</div>