Initial commit

app/models/operations/account.rb

@@ -0,0 +1,61 @@
+# frozen_string_literal: true
+
+# TODO: Add admin rubric for Account.
+module Operations
+  class Account < ApplicationRecord
+    SCOPES = %w[member platform].freeze
+
+    MEMBER_TYPES = %w[liability].freeze
+    PLATFORM_TYPES = %w[asset expense revenue].freeze
+    TYPES = (MEMBER_TYPES + PLATFORM_TYPES).freeze
+
+    validates :code, presence: true, uniqueness: true
+    validates :type, presence: true, inclusion: { in: TYPES }
+    validates :kind, presence: true, uniqueness: { scope: %i[type currency_type] }
+    validates :currency_type, presence: true, inclusion: { in: Currency.types.map(&:to_s) }
+    validates :scope, presence: true, inclusion: { in: SCOPES }
+
+    def self.table_name_prefix
+      'operations_'
+    end
+
+    # Type column reserved for STI.
+    self.inheritance_column = nil
+
+    # Allows dynamically check scopes.
+    #   scope.platform?
+    def scope
+      super&.inquiry
+    end
+
+    # Allows dynamically check kinds.
+    #   kind.main?
+    def kind
+      super&.inquiry
+    end
+  end
+end
+
+# == Schema Information
+# Schema version: 20190115165813
+#
+# Table name: operations_accounts
+#
+#  id            :integer          not null, primary key
+#  code          :integer          not null
+#  type          :string(10)       not null
+#  kind          :string(30)       not null
+#  currency_type :string(10)       not null
+#  description   :string(100)
+#  scope         :string(10)       not null
+#  created_at    :datetime         not null
+#  updated_at    :datetime         not null
+#
+# Indexes
+#
+#  index_operations_accounts_on_code                             (code) UNIQUE
+#  index_operations_accounts_on_currency_type                    (currency_type)
+#  index_operations_accounts_on_scope                            (scope)
+#  index_operations_accounts_on_type                             (type)
+#  index_operations_accounts_on_type_and_kind_and_currency_type  (type,kind,currency_type) UNIQUE
+#

app/models/operations/asset.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module Operations
+  # {Asset} is a balance sheet operation
+  class Asset < Operation
+
+  end
+end
+
+# == Schema Information
+# Schema version: 20201125134745
+#
+# Table name: assets
+#
+#  id             :integer          not null, primary key
+#  code           :integer          not null
+#  currency_id    :string(255)      not null
+#  reference_type :string(255)
+#  reference_id   :integer
+#  debit          :decimal(32, 16)  default(0.0), not null
+#  credit         :decimal(32, 16)  default(0.0), not null
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+# Indexes
+#
+#  index_assets_on_currency_id                      (currency_id)
+#  index_assets_on_reference_type_and_reference_id  (reference_type,reference_id)
+#

app/models/operations/expense.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+module Operations
+  # {Expense} is a income statement operation
+  class Expense < Operation
+
+  end
+end
+
+# == Schema Information
+# Schema version: 20201125134745
+#
+# Table name: expenses
+#
+#  id             :integer          not null, primary key
+#  code           :integer          not null
+#  currency_id    :string(255)      not null
+#  reference_type :string(255)
+#  reference_id   :integer
+#  debit          :decimal(32, 16)  default(0.0), not null
+#  credit         :decimal(32, 16)  default(0.0), not null
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+# Indexes
+#
+#  index_expenses_on_currency_id                      (currency_id)
+#  index_expenses_on_reference_type_and_reference_id  (reference_type,reference_id)
+#

app/models/operations/liability.rb

@@ -0,0 +1,56 @@
+# frozen_string_literal: true
+
+module Operations
+  # {Liability} is a balance sheet operation
+  class Liability < Operation
+    belongs_to :member
+
+    validates :member_id, presence: {
+      if: ->(liability) { liability.account.scope == 'member' }
+    }
+
+    validates :member_id, absence: {
+      if: ->(liability) { liability.account.scope != 'member' }
+    }
+
+    # Notify third party trading engine about member balance update.
+    after_commit on: :create do
+      AMQP::Queue.enqueue(:events_processor,
+                        subject: :operation,
+                        payload: as_json_for_events_processor)
+    end
+
+    def as_json_for_events_processor
+      { code:           code,
+        currency:       currency_id,
+        member_id:      member_id,
+        reference_id:   reference_id,
+        reference_type: reference_type&.downcase,
+        debit:          debit,
+        credit:         credit }
+    end
+  end
+end
+
+# == Schema Information
+# Schema version: 20201125134745
+#
+# Table name: liabilities
+#
+#  id             :integer          not null, primary key
+#  code           :integer          not null
+#  currency_id    :string(255)      not null
+#  member_id      :integer
+#  reference_type :string(255)
+#  reference_id   :integer
+#  debit          :decimal(32, 16)  default(0.0), not null
+#  credit         :decimal(32, 16)  default(0.0), not null
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+# Indexes
+#
+#  index_liabilities_on_currency_id                      (currency_id)
+#  index_liabilities_on_member_id                        (member_id)
+#  index_liabilities_on_reference_type_and_reference_id  (reference_type,reference_id)
+#

app/models/operations/revenue.rb

@@ -0,0 +1,32 @@
+# frozen_string_literal: true
+
+module Operations
+  # {Revenue} is a income statement operation
+  class Revenue < Operation
+    belongs_to :member
+
+    scope :h24, -> { where('created_at > ?', 24.hours.ago) }
+  end
+end
+
+# == Schema Information
+# Schema version: 20201125134745
+#
+# Table name: revenues
+#
+#  id             :integer          not null, primary key
+#  code           :integer          not null
+#  currency_id    :string(255)      not null
+#  member_id      :integer
+#  reference_type :string(255)
+#  reference_id   :integer
+#  debit          :decimal(32, 16)  default(0.0), not null
+#  credit         :decimal(32, 16)  default(0.0), not null
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+# Indexes
+#
+#  index_revenues_on_currency_id                      (currency_id)
+#  index_revenues_on_reference_type_and_reference_id  (reference_type,reference_id)
+#