Initial commit

app/api/v2/market/trades.rb

@@ -0,0 +1,40 @@
+# encoding: UTF-8
+# frozen_string_literal: true
+
+module API
+  module V2
+    module Market
+      class Trades < Grape::API
+        helpers API::V2::Market::NamedParams
+
+        helpers do
+          def opposite_type_param
+            params[:type] == 'buy' ? 'sell' : 'buy'
+          end
+        end
+
+        desc 'Get your executed trades. Trades are sorted in reverse creation order.',
+             is_array: true,
+             success: API::V2::Entities::Trade
+        params do
+          optional :market,
+                   values: { value: ->(v) { (Array.wrap(v) - ::Market.active.ids).blank? }, message: 'market.market.doesnt_exist' },
+                   desc: -> { V2::Entities::Market.documentation[:id] }
+          use :trade_filters
+        end
+        get '/trades' do
+          user_authorize! :read, ::Trade
+
+          current_user
+            .trades
+            .order(order_param)
+            .tap { |q| q.where!('(taker_id = ? AND taker_type = ?) OR (maker_id = ? AND taker_type = ?)', current_user.id, params[:type], current_user.id, opposite_type_param) if params[:type] }
+            .tap { |q| q.where!(market: params[:market]) if params[:market] }
+            .tap { |q| q.where!('created_at >= ?', Time.at(params[:time_from])) if params[:time_from] }
+            .tap { |q| q.where!('created_at < ?', Time.at(params[:time_to])) if params[:time_to] }
+            .tap { |q| present paginate(q, false), with: API::V2::Entities::Trade, current_user: current_user }
+        end
+      end
+    end
+  end
+end