Add BankAccountConnector to implement bank import methods in plugins

lib/bank_account_connector.rb

@@ -0,0 +1,155 @@
+class BankAccountConnector
+
+  class TextItem
+    def initialize(text)
+      @text = text
+    end
+
+    def name
+      nil
+    end
+
+    def text
+      @text
+    end
+
+  end
+
+  class TextField
+    def initialize(name, value, label)
+      @name = name
+      @value = value
+      @label = label
+    end
+
+    def type
+      nil
+    end
+
+    def name
+      @name
+    end
+
+    def value
+      @value
+    end
+
+    def label
+      @label || @name.to_s
+    end
+  end
+
+  class PasswordField < TextField
+
+    def type
+      :password
+    end
+
+  end
+
+  class HiddenField < TextField
+
+    def type
+      :hidden
+    end
+
+  end
+
+
+  @@registered_classes = Set.new
+
+  def self.register(klass)
+    @@registered_classes.add klass
+  end
+
+  def self.find(iban)
+    @@registered_classes.each do |klass|
+      return klass if klass.handles(iban)
+    end
+    nil
+  end
+
+  def initialize(bank_account)
+    @bank_account = bank_account
+    @auto_submit = nil
+    @controls = []
+    @count = 0
+  end
+
+  def iban
+    @bank_account.iban
+  end
+
+  def auto_submit
+    @auto_submit
+  end
+
+  def controls
+    @controls
+  end
+
+  def count
+    @count
+  end
+
+  def text(data)
+    @controls += [TextItem.new(data)]
+  end
+
+  def wait_with_text(auto_submit, data)
+    @auto_submit = auto_submit
+    @controls += [TextItem.new(data)]
+  end
+
+  def wait_for_app(code)
+    hidden_field :twofactor, code
+    wait_with_text 3000, t('.confirm_app', code: code)
+    nil
+  end
+
+  def text_field(name, value=nil)
+    @controls += [TextField.new(name, value, t(name))]
+  end
+
+  def hidden_field(name, value)
+    @controls += [HiddenField.new(name, value, 'HIDDEN')]
+  end
+
+  def password_field(name, value=nil)
+    @controls += [PasswordField.new(name, value, t(name))]
+  end
+
+
+  def set_balance(amount)
+    @bank_account.balance = amount
+  end
+
+  def continuation_point
+    @bank_account.import_continuation_point
+  end
+
+  def set_continuation_point(data)
+    @bank_account.import_continuation_point = data
+  end
+
+  def update_or_create_transaction(external_id, data={})
+    @bank_account.bank_transactions.where(external_id: external_id).first_or_create.update(data)
+    @count += 1
+  end
+
+  def finish
+    @bank_account.last_import = Time.now
+    @bank_account.save!
+  end
+
+  def load(data)
+  end
+
+  def dump
+  end
+
+  def t(key, args={})
+    return t(".fields.#{key}") unless key.is_a? String
+    I18n.t 'bank_account_connector' + key, args
+  end
+end

lib/bank_account_connector_external.rb

@@ -0,0 +1,31 @@
+class BankAccountConnectorExternal < BankAccountConnector
+
+  def load(data)
+    @connector = create_connector
+    @connector.load data
+  end
+
+  def dump
+    @connector.dump
+  end
+
+  def connector_import
+    set_balance @connector.balance iban
+    cp = @connector.transactions iban, continuation_point do |t|
+      update_or_create_transaction t[:id], map_transaction(t)
+    end
+    set_continuation_point cp if cp
+  end
+
+  def connector_logout
+    @connector.logout
+  end
+
+  def import(data)
+    return false unless connector_login(data)
+    connector_import
+    connector_logout
+    true
+  end
+
+end

lib/tasks/foodsoft.rake

@@ -67,11 +67,14 @@ namespace :foodsoft do
   desc "Import and assign bank transactions"
   task :import_and_assign_bank_transactions => :environment do
     BankAccount.find_each do |ba|
-      import_method = ba.find_import_method
-      next unless import_method
-      import_count = import_method.call(ba)
+      importer = ba.find_connector
+      next unless importer
+      importer.load nil
+      ok = importer.import nil
+      next unless ok
+      importer.finish
       assign_count = ba.assign_unlinked_transactions
-      rake_say "#{ba.name}: imported #{import_count}, assigned #{assign_count}"
+      rake_say "#{ba.name}: imported #{importer.count}, assigned #{assign_count}"
     end
   end
 end