Added seen plugin

config.json

@@ -17,6 +17,7 @@
     "nxy.plugins.kernel",
     "nxy.plugins.mcmaniac",
     "nxy.plugins.quotes",
+    "nxy.plugins.seen",
     "nxy.plugins.tell",
     "nxy.plugins.timer",
     "nxy.plugins.useless",

nxy/plugins/seen.py

@@ -0,0 +1,44 @@
+# -*- coding: utf-8 -*-
+import re
+import irc3
+
+from datetime import datetime
+from docopt import Dict as DocOptDict
+from irc3.plugins.command import command
+from irc3.utils import IrcString
+
+from . import DatabasePlugin
+
+
+class Seen(DatabasePlugin):
+    requires = ['irc3.plugins.command',
+                'nxy.plugins.database']
+
+    @command(options_first=True)
+    def seen(self, mask: IrcString, channel: IrcString, args: DocOptDict):
+        """Get last seen date and message for a nick.
+
+        %%seen [<nick>]
+        """
+        nick = args.get('<nick>') or mask.nick
+        if nick == mask.nick:
+            return '{nick}, have you seen in the mirror?'.format(nick=nick)
+        self.cur.execute('select * from seens where nick = ?', [nick])
+        seen = self.cur.fetchone()
+        if not seen:
+            return 'I\'ve never seen {nick}'.format(nick=nick)
+        return '{nick} was last seen {delta} saying: {message}'.format(
+            nick=seen['nick'],
+            # TODO: relate string delta
+            delta=datetime.now() - seen['last_seen'],
+            message=re.sub(r'\x01ACTION (.*)\x01', r'\1', seen['message']),
+        )
+
+    @irc3.event(r'(?i)^:(?P<mask>\S+) PRIVMSG (?P<channel>\S+) :(?P<msg>.*)')
+    def save(self, mask: str, channel: str, msg: str):
+        nick = IrcString(mask).nick
+        if nick != self.bot.nick:
+            self.cur.execute('insert or replace into seens (nick, channel, '
+                             'message, last_seen) values (?, ?, ?, ?)',
+                             [nick, channel.lower(), msg, datetime.now()])
+            self.con.commit()

schema.sql

@@ -29,3 +29,13 @@ create table if not exists tells (
     created timestamp not null default current_timestamp,
     unique (to_user, message)
 );
+
+
+create table if not exists seens (
+    id integer primary key autoincrement,
+    nick text not null,
+    channel text not null,
+    message text not null,
+    last_seen timestamp not null,
+    unique (nick collate nocase) on conflict replace
+);