add database system for ducks

db.py

@@ -0,0 +1,55 @@
+class DuckDB:
+    def __init__(self, location=None):
+        self.location = location
+        self.db = []
+        if location != None:
+            fd = open(location, "r")
+            self.parse(fd)
+            fd.close()
+    def parse(self, fd):
+        lines = [i.rstrip() for i in fd.readlines()]
+        for i in lines:
+            self.db.append(DuckEvent(i))
+    def output(self, fd):
+        for i in self.db:
+            fd.write(i.stringify() + "\n")
+
+class DuckEvent:
+    def __init__(self, line=None):
+        self.status = ""
+        self.nick = ""
+        self.time = None
+        self.offset = None
+        self.channel = None
+        if not line == None: self.internalize(line)
+    def internalize(self, line):
+        self.status = line[0].upper()
+        spl = line.split(' ')
+        self.nick = spl[0][1:]
+        self.time = float(spl[1])
+        self.offset = float(spl[2])
+        self.channel = spl[3]
+    def stringify(self):
+        return "{}{} {} {} {}".format(
+            self.status,
+            self.nick,
+            self.time,
+            self.offset,
+            self.channel
+        )
+
+class DuckStats:
+    def __init__(self, db):
+        self.db = db
+    def countstatus(self, nick, status):
+        cnt = 0
+        for i in self.db.db:
+            if i.status == status and i.nick == nick:
+                cnt += 1
+        return cnt
+    def cought(self, nick):
+        return self.countstatus(nick, "B")
+    def missed(self, nick):
+        return self.countstatus(nick, "M")
+    def ratio(self, nick):
+        return (self.cought(nick) / self.missed(nick)) * 100