From 11dd7c000cffec2f9ff4bbda06b8b7f263d25b75 Mon Sep 17 00:00:00 2001
From: Yuchen Pei <hi@ypei.me>
Date: Wed, 25 Aug 2021 19:08:03 +1000
Subject: first commit

---
 gentree.py  | 114 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 gentree.py~ |   3 ++
 2 files changed, 117 insertions(+)
 create mode 100644 gentree.py
 create mode 100644 gentree.py~

diff --git a/gentree.py b/gentree.py
new file mode 100644
index 0000000..995fa1a
--- /dev/null
+++ b/gentree.py
@@ -0,0 +1,114 @@
+from enum import Enum
+import sys
+import pprint
+
+class LogType(Enum):
+    QUASSEL = 1
+    ERC = 2
+
+
+class Message:
+    def __init__(self):
+        self.sender = ""
+        self.message = ""
+        self.reply_to_msgs = []
+        self.previous_msg = -1
+
+def to_dict(message):
+    return {'sender': message.sender,
+            'message': message.message,
+            'reply_to_msgs': message.reply_to_msgs,
+            'previous_msg': message.previous_msg}
+
+
+def get_log_type(log):
+    """determine the type of irc log.
+    args:
+      log: a string of irc log.
+    returns:
+      a LogType.
+    """
+    if log[0] == '[':
+        return LogType.QUASSEL
+    elif log[0] == '<':
+        return LogType.ERC
+    else:
+        raise ValueError('Unknown irc log type.')
+    
+
+def parse_log_quassel(log):
+    """parse a quassel log.
+    A quassel message is in the form of
+    [hh:mm:ss] <sender-nick> blahblah.
+    or
+    [hh:mm:ss] -*- sender-nick does something.
+    args:
+      log: a string of quassel log.
+    return:
+      a list of Messages
+    """
+    last_messages = dict()
+    index = 0
+    messages = []
+    for line in log.splitlines():
+        message = Message()
+        is_me = False
+        [_, nick, payload] = line.split(' ', maxsplit=2)
+        if nick == '-*-':
+            [_, _, nick, payload] = line.split(' ', maxsplit=3)
+            is_me = True
+        else:
+            nick = nick[1:-1] # removes <>
+        # Remove special symbol for op
+        if nick[0] in ['@', '%']:
+            nick = nick[:-1]
+        message.sender = nick
+        last_message = last_messages.setdefault(nick, index)
+        if last_message != index:
+            message.previous_msg = last_message
+        for participant, msg_id in last_messages.items():
+            if payload.find(participant) != -1:
+                message.reply_to_msgs.append(msg_id)
+        message.message = '/me ' + payload if is_me else payload
+        messages.append(message)
+        index += 1
+    return messages
+
+def parse_log_erc(log):
+    """parse an erc log.
+    An erc message is in the form of
+    <nick> blahblah
+           blahblah blah  [hh:mm]
+    And the timestamp is optional
+    args:
+      log: a string of quassel log.
+    return:
+      a list of Messages
+    """
+    return []
+
+def parse_log(log):
+    """parse log.
+    args:
+      log: a string of irc log.
+    returns:
+      a list of Messages
+    """
+    log_type = get_log_type(log)
+    if log_type == LogType.QUASSEL:
+        return parse_log_quassel(log)
+    elif log_type == LogType.ERC:
+        return parse_log_erc(log)
+    else:
+        raise ValueError('Unknown irc log type.')
+
+
+def main():
+    log = open(sys.argv[1]).read()
+    meeting = parse_log(log)
+    # graph = gen_graph(meeting)
+    pp = pprint.PrettyPrinter(indent=4)
+    pp.pprint([to_dict(msg) for msg in meeting])
+
+if __name__ == '__main__':
+    main()
diff --git a/gentree.py~ b/gentree.py~
new file mode 100644
index 0000000..5bb4c52
--- /dev/null
+++ b/gentree.py~
@@ -0,0 +1,3 @@
+def main():
+  # get the whole string.
+  meeting = parse_input(
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