Add make_order and get_user_market helpers

[perso/Immae/Projets/Cryptomonnaies/Cryptoportfolio/Trader.git] / helper.py

diff --git a/helper.py b/helper.py
index 4d73078dbb99aed90f819c0ac9947f04a8f9d080..d948dacd6caadec59c643bcb242c6b3cfd4b7642 100644 (file)
--- a/helper.py
+++ b/helper.py
@@ -7,6 +7,62 @@ import sys
 
 import portfolio
 
+def make_order(market, value, currency, action="acquire",
+        close_if_possible=False, base_currency="BTC", follow=True,
+        compute_value="average"):
+    """
+    Make an order on market
+    "market": The market on which to place the order
+    "value": The value in *base_currency* to acquire,
+             or in *currency* to dispose.
+             use negative for margin trade.
+    "action": "acquire" or "dispose".
+                "acquire" will buy long or sell short,
+                "dispose" will sell long or buy short.
+    "currency": The currency to acquire or dispose
+    "base_currency": The base currency. The value is expressed in that
+                     currency (default: BTC)
+    "follow": Whether to follow the order once run (default: True)
+    "close_if_possible": Whether to try to close the position at the end
+                         of the trade, i.e. reach exactly 0 at the end
+                         (only meaningful in "dispose"). May have
+                         unwanted effects if the end value of the
+                         currency is not 0.
+    "compute_value": Compute value to place the order
+    """
+    market.report.log_stage("make_order_begin")
+    market.balances.fetch_balances(tag="make_order_begin")
+    if action == "acquire":
+        trade = portfolio.Trade(
+                portfolio.Amount(base_currency, 0),
+                portfolio.Amount(base_currency, value),
+                currency, market)
+    else:
+        amount = portfolio.Amount(currency, value)
+        trade = portfolio.Trade(
+                amount.in_currency(base_currency, market, compute_value=compute_value),
+                portfolio.Amount(base_currency, 0),
+                currency, market)
+    market.trades.all.append(trade)
+    order = trade.prepare_order(
+            close_if_possible=close_if_possible,
+            compute_value=compute_value)
+    market.report.log_orders([order], None, compute_value)
+    market.trades.run_orders()
+    if follow:
+        market.follow_orders()
+        market.balances.fetch_balances(tag="make_order_end")
+    else:
+        market.report.log_stage("make_order_end_not_followed")
+        return order
+    market.report.log_stage("make_order_end")
+
+def get_user_market(config_path, user_id, debug=False):
+    import market
+    pg_config, report_path = main_parse_config(config_path)
+    market_config = list(main_fetch_markets(pg_config, str(user_id)))[0][0]
+    return market.Market.from_config(market_config, debug=debug)
+
 def main_parse_args(argv):
     parser = argparse.ArgumentParser(
             description="Run the trade bot")