common.py

#! /usr/bin/env python
# -*- coding: utf-8 -*-

import io

import numpy as np
import pandas as pd
import dios

from saqc.flagger import (
    CategoricalFlagger,
    SimpleFlagger,
    DmpFlagger,
)


TESTNODATA = (np.nan, -9999)


TESTFLAGGER = (
    CategoricalFlagger(["NIL", "GOOD", "BAD"]),
    SimpleFlagger(),
    DmpFlagger(),
)


def initData(cols=2, start_date="2017-01-01", end_date="2017-12-31", freq=None, rows=None):
    if rows is None:
        freq = freq or "1h"

    di = dios.DictOfSeries(itype=dios.DtItype)
    dates = pd.date_range(start=start_date, end=end_date, freq=freq, periods=rows)
    dummy = np.arange(len(dates))

    for col in range(1, cols + 1):
        di[f"var{col}"] = pd.Series(data=dummy * col, index=dates)

    return di


def writeIO(content):
    f = io.StringIO()
    f.write(content)
    f.seek(0)
    return f