% !TeX root = ../thesis.tex
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\appendix
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\chapter*{\fuggelek}\addcontentsline{toc}{chapter}{\fuggelek}
\setcounter{chapter}{\appendixnumber}
%\setcounter{equation}{0} % a fofejezet-szamlalo az angol ABC 6. betuje (F) lesz
\numberwithin{equation}{section}
\numberwithin{figure}{section}
\numberwithin{lstlisting}{section}
%\numberwithin{tabular}{section}

\section{Knative Autoscaler napl\'o feldolgoz\'as\'at v\'egző k\'od}
\label{sec:log-analyze}
\begin{lstlisting}[label=code:log-analyze]
class LogAnalyzer(Analyzer):
    def __init__(self):
        super().__init__(typeof='.txt')
        self.concurrencypersec = []
        self.podpersec = []
        self.start = datetime.datetime.now()
        self.end = datetime.datetime.now()

    def listtodict(self, inlist: list) -> dict:
        it = iter(inlist)
        res_dct = dict(zip(it, it))
        return res_dct

    def processfile(
            self,
            fname,
            shouldprint: bool = False) -> dict:
        dictofsecs = {}
        if 'date' in fname:
            return {}
        with open(fname, 'r') as inputFile:
            line = inputFile.readline()
            while line:
                try:
                    linedict = json.loads(line)
                    try:
                        currdate = linedict['ts'].split(
                            '.')[0].replace('T', ' ')
                        dateformatted = datetime.datetime.strptime(
                            currdate, '%Y-%m-%d %H:%M:%S')
                        if self.start < dateformatted < self.end:
                            message = linedict['msg']
                            messagelist = re.split('[ =]', message)
                            messagedict = self.listtodict(messagelist)
                            messagedict['ts'] = dateformatted
                            if 'ObservedStableValue' in messagedict:
                                if messagedict['ts'] not in dictofsecs:
                                    dictofsecs[messagedict['ts']] = {
                                        'pod': [], 'cc': []}
                                dictofsecs[messagedict['ts']]['pod'].append(
                                    float(messagedict['PodCount']))
                                dictofsecs[messagedict['ts']]['cc'].append(
                                    float(messagedict['ObservedStableValue']))
                    except Exception as exception:
                        print(exception)
                except json.JSONDecodeError:
                    continue
                finally:
                    line = inputFile.readline()
        return dictofsecs

    def readconfigdates(self, directory='.'):
        dates = []
        with open(directory + "/dates.txt", 'r') as inputFile:
            line = inputFile.readline().rstrip()
            currline = 0
            while line:
                dateformatted = datetime.datetime.strptime(
                    line, '%Y-%m-%d %H:%M:%S')
                dates.append(dateformatted)
                line = inputFile.readline().rstrip()
                currline += 1
        self.start = dates[0]
        self.end = dates[1]

    def averagepersec(
            self,
            dictoftimes: dict,
            shouldprint: bool = False) -> None:
        for key, value in dictoftimes.items():
            pod = value['pod']
            concurrency = value['cc']
            avgpod = average(pod)
            avgcc = average(concurrency)
            self.podpersec.append(avgpod)
            self.concurrencypersec.append(avgcc)
            if shouldprint:
                print(avgpod)
                print(avgcc)

    def work(self, directory: str = '.') -> None:
        files = super().getfiles(directory)
        self.readconfigdates(directory)
        filelines = {}
        for afile in files:
            filelines.update(self.processfile(afile))
        self.averagepersec(filelines, False)

\end{lstlisting}

%TODO Remove this shit
%----------------------------------------------------------------------------
\clearpage\section{Válasz az ,,Élet, a világmindenség, meg minden'' kérdésére}
%----------------------------------------------------------------------------
A Pitagorasz-tételből levezetve
\begin{align}
c^2=a^2+b^2=42.
\end{align}
A Faraday-indukciós törvényből levezetve
\begin{align}
\rot E=-\frac{dB}{dt}\hspace{1cm}\longrightarrow \hspace{1cm}
U_i=\oint\limits_\mathbf{L}{\mathbf{E}\mathbf{dl}}=-\frac{d}{dt}\int\limits_A{\mathbf{B}\mathbf{da}}=42.
\end{align}