#!/usr/bin/env python3
from pandas import read_csv
import matplotlib.pyplot as plt
import matplotlib.ticker as mtick
import matplotlib as mpl
mpl.rcParams['figure.dpi'] = 1200
import numpy as np
import pathlib

class display:
    def __init__(self, filename) -> None:
        """Start the actual import process. Seperates process and setup."""
        with open(filename, mode='r', encoding='utf-8-sig', newline='') as csv_file:
            years = np.array([2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024])
            styles = ["roenom", "roereal", "roetaxed", "realefftax"]
            cols = [f"{style}{year}" for style in styles for year in years]
            reader = read_csv(csv_file, usecols=cols, dtype=np.float32, low_memory=True)
            plt.style.use('_mpl-gallery')
            for style in styles:
                style_cols = [f"{style}{year}" for year in years]
                fig, ax = plt.subplots(figsize=(12, 6))
                data = reader[style_cols].dropna(how='all', axis=1)
                data_list = []
                data_list = [data[col].dropna().values for col in style_cols if col in data.columns]                
                ax.boxplot(data_list, positions=years[:len(data_list)], patch_artist=True,
                           showmeans=False, showfliers=False,
                    medianprops={"color": "white", "linewidth": 0.5},
                    boxprops={"facecolor": "C0", "edgecolor": "white",
                              "linewidth": 0.5},
                    whiskerprops={"color": "C0", "linewidth": 1.5},
                    capprops={"color": "C0", "linewidth": 1.5})
                ax.yaxis.set_major_formatter(mtick.PercentFormatter(1.0))
                plt.figtext(0.5, 0.01, style, ha='center', va='bottom')
                plt.show()


display(pathlib.Path('/home/user/bachelorarbeit_importer/data/', 'cleaned_st_neu_verlustausschluss.csv'))