Fully implemented prepayment Directo invoice forwarding, WIP on proformas

app/controllers/concerns/book_keeping.rb

@@ -0,0 +1,99 @@
+module BookKeeping
+  extend ActiveSupport::Concern
+
+  DOMAIN_TO_PRODUCT = { 'ee': '01EE', 'com.ee': '02COM', 'pri.ee': '03PRI',
+                        'fie.ee': '04FIE', 'med.ee': '05MED' }.freeze
+
+  def monthly_summary(month:)
+    activities = monthly_activites(month)
+    inv = {
+      'number': 1,
+      'customer_code': accounting_customer_code,
+      'language': language,
+      'currency': activities.first.currency,
+      'date': month.end_of_month.strftime('%Y-%m-%d'),
+    }.as_json
+
+    lines = []
+    activities.each do |activity|
+      fetch_invoice_lines(activity, lines)
+    end
+    lines << prepayment_for_all(lines)
+
+    inv['invoice_lines'] = lines.as_json
+
+    inv
+  end
+
+  def fetch_invoice_lines(activity, lines)
+    price = load_price(activity)
+    if price.duration.include? 'year'
+      price.duration.to_i.times do |duration|
+        lines << new_montly_invoice_line(activity: activity, duration: duration + 1).as_json
+      end
+    else
+      lines << new_monthly_invoice_line(activity: activity).as_json
+    end
+  end
+
+  def monthly_activites(month)
+    AccountActivity.where(account_id: account_ids)
+                   .where(created_at: month.beginning_of_month..month.end_of_month)
+                   .where(activity_type: [AccountActivity::CREATE, AccountActivity::RENEW])
+  end
+
+  def new_montly_invoice_line(activity:, duration: nil)
+    price = DirectoInvoiceForwardJob.load_price(activity)
+    yearly = price.duration.include?('year')
+    line = {
+      'product_id': DOMAIN_TO_PRODUCT[price.zone_name.to_sym],
+      'quantity': 1,
+      'price': yearly ? (price.price.amount / price.duration.to_i) : price.amount,
+    }
+
+    line['description'] = description_in_language(price: price, yearly: yearly)
+    add_product_timeframe(line: line, activity: activity, duration: duration) if duration > 1
+
+    line
+  end
+
+  def add_product_timeframe(line:, activity:, duration:)
+    create_time = activity.created_at
+    line['start_date'] = (create_time + (duration - 1).year).end_of_month.strftime('%Y-%m-%d')
+    line['end_date'] = (create_time + (duration - 1).year + 1).end_of_month.strftime('%Y-%m-%d')
+  end
+
+  def description_in_language(price:, yearly:)
+    if language == 'en'
+      registration_length = yearly ? 'year' : 'month'
+      prefix = ".#{price.zone_name} registration: #{price.duration.to_i} #{registration_length}"
+      suffix = 's'
+    else
+      registration_length = yearly ? 'aasta' : 'kuu'
+      prefix = ".#{price.zone_name} registreerimine: #{price.duration.to_i} #{registration_length}"
+      suffix = yearly ? 't' : 'd'
+    end
+
+    return "#{prefix}#{suffix}" if price.duration.to_i > 1
+
+    prefix
+  end
+
+  def prepayment_for_all(lines)
+    total = 0
+    lines.each { |l| total += l['quantity'].to_f * l['price'].to_f }
+    {
+      'product_id': Setting.directo_receipt_product_name,
+      'description': 'Domeenide ettemaks',
+      'quantity': -1,
+      'price': total
+    }
+  end
+
+  def load_price(account_activity)
+    @pricelists ||= {}
+    return @pricelists[account_activity.price_id] if @pricelists.key? account_activity.price_id
+
+    @pricelists[account_activity.price_id] = account_activity.price
+  end
+end