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Author: benedictkwok

my_delorean.py

@@ -0,0 +1,29 @@
+import delorean
+import parse
+from decimal import Decimal
+class PriceLog(object):
+  def __init__(self, timestamp, product_id, price):
+    self.timestamp = timestamp
+    self.product_id = product_id
+    self.price = price
+  def __repr__(self):
+    return '<PriceLog ({}, {}, {})>'.format(self.timestamp,
+                                            self.product_id,
+                                            self.price)
+  @classmethod
+  def parse(cls, text_log):
+    '''
+    Parse from a text log with the format
+    [<Timestamp>] - SALE - PRODUCT: <product id> - PRICE: $<price>
+    to a PriceLog object
+    '''
+    divide_it = text_log.split(' - ')
+    tmp_string, _, product_string, price_string = divide_it
+    timestamp = delorean.parse(tmp_string.strip('[]'))
+    product_id = int(product_string.split(':')[-1])
+    price = Decimal(price_string.split('$')[-1])
+    return cls(timestamp=timestamp, product_id=product_id, price=price)
+
+  # test code
+log = '[2018-05-05T11:07:12.267897] - SALE - PRODUCT: 1345 - PRICE: $09.99'
+PriceLog.parse(log)