Added log checking

1 files changed, 53 insertions, 0 deletions

diff --git a/src/philo/log.py b/src/philo/log.py
new file mode 100644
index 0000000..cc4347e
--- /dev/null
+++ b/src/philo/log.py
@@ -0,0 +1,53 @@
+# ############################################################################ #
+#                                                                              #
+#                                                         :::      ::::::::    #
+#    log.py                                             :+:      :+:    :+:    #
+#                                                     +:+ +:+         +:+      #
+#    By: charles <me@cacharle.xyz>                  +#+  +:+       +#+         #
+#                                                 +#+#+#+#+#+   +#+            #
+#    Created: 2020/09/27 16:04:18 by charles           #+#    #+#              #
+#    Updated: 2020/09/27 16:05:21 by charles          ###   ########.fr        #
+#                                                                              #
+# ############################################################################ #
+
+import re
+import time
+
+import philo
+
+
+class Log:
+    def __init__(self, log, philo_num):
+        match = re.match(
+            "^(?P<timestamp>\d+) "
+            "(?P<id>\d+) "
+            "(?P<event>is thinking|is eating|is sleeping|died)$",
+            log
+        )
+        if match is None:
+            raise ValueError("Bad line format |{}|".format(log))
+
+        curr = int(time.time() * 1000)
+        self.timestamp = Log._parse_ranged_int(match.group("timestamp"), curr - 100, curr + 100)
+        self.id = Log._parse_ranged_int(match.group("id"), 1, philo_num)
+
+        self.event = {
+            "is thinking": philo.Event.THINKING,
+            "is eating":   philo.Event.EATING,
+            "is sleeping": philo.Event.SLEEPING,
+            "died":        philo.Event.DIED,
+        }[match.group('event')]
+
+    @staticmethod
+    def _parse_ranged_int(s, lo, hi):
+        try:
+            value = int(s)
+            if not (lo <= value <= hi):
+                raise ValueError("Invalid value range {}".format(s))
+        except ValueError:
+            raise ValueError("Invalid value {}".format(s))
+        return value
+
+
+    def __repr__(self):
+        return "{} {} {}".format(self.timestamp, self.id, self.event)