Initial commit

app/models/order_bid.rb

@@ -0,0 +1,104 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+class OrderBid < Order
+  LOCKING_BUFFER_FACTOR = '1.1'.to_d
+  scope :matching_rule, -> { order(price: :desc, created_at: :asc) }
+
+  class << self
+    def get_depth(market_id)
+      where(market_id: market_id, state: :wait)
+        .where.not(ord_type: :market)
+        .order(price: :desc)
+        .group(:price)
+        .sum(:volume)
+        .to_a
+    end
+  end
+  # @deprecated
+  def hold_account
+    member.get_account(bid)
+  end
+
+  # @deprecated
+  def hold_account!
+    Account.lock.find_by!(member_id: member_id, currency_id: bid)
+  end
+
+  def expect_account
+    member.get_account(ask)
+  end
+
+  def expect_account!
+    Account.lock.find_by!(member_id: member_id, currency_id: ask)
+  end
+
+  def avg_price
+    return ::Trade::ZERO if funds_received.zero?
+    market.round_price(funds_used / funds_received)
+  end
+
+  # @deprecated Please use {income/outcome_currency} in Order model
+  def currency
+    Currency.find(bid)
+  end
+
+  def income_currency
+    ask_currency
+  end
+
+  def outcome_currency
+    bid_currency
+  end
+
+  def compute_locked
+    case ord_type
+    when 'limit'
+      price*volume
+    when 'market'
+      funds = estimate_required_funds(OrderAsk.get_depth(market_id)) {|p, v| p*v }
+      # Maximum funds precision defined in Market::FUNDS_PRECISION.
+      funds.round(Market::FUNDS_PRECISION, BigDecimal::ROUND_UP)
+    end
+  end
+
+end
+
+# == Schema Information
+# Schema version: 20201125134745
+#
+# Table name: orders
+#
+#  id             :integer          not null, primary key
+#  uuid           :binary(16)       not null
+#  remote_id      :string(255)
+#  bid            :string(10)       not null
+#  ask            :string(10)       not null
+#  market_id      :string(20)       not null
+#  price          :decimal(32, 16)
+#  volume         :decimal(32, 16)  not null
+#  origin_volume  :decimal(32, 16)  not null
+#  maker_fee      :decimal(17, 16)  default(0.0), not null
+#  taker_fee      :decimal(17, 16)  default(0.0), not null
+#  state          :integer          not null
+#  type           :string(8)        not null
+#  member_id      :integer          not null
+#  ord_type       :string(30)       not null
+#  locked         :decimal(32, 16)  default(0.0), not null
+#  origin_locked  :decimal(32, 16)  default(0.0), not null
+#  funds_received :decimal(32, 16)  default(0.0)
+#  trades_count   :integer          default(0), not null
+#  created_at     :datetime         not null
+#  updated_at     :datetime         not null
+#
+# Indexes
+#
+#  index_orders_on_member_id                     (member_id)
+#  index_orders_on_state                         (state)
+#  index_orders_on_type_and_market_id            (type,market_id)
+#  index_orders_on_type_and_member_id            (type,member_id)
+#  index_orders_on_type_and_state_and_market_id  (type,state,market_id)
+#  index_orders_on_type_and_state_and_member_id  (type,state,member_id)
+#  index_orders_on_updated_at                    (updated_at)
+#  index_orders_on_uuid                          (uuid) UNIQUE
+#