#! /usr/bin/env python
# -*- coding: utf-8 -*-
# vim:fenc=utf-8
#
# Copyright © 2017 lafrite <lafrite@Poivre>
#
# Distributed under terms of the MIT license.

"""
Skills are "competence" and "domaine" (which is program elements)!

Thoses tools are made to ease their manipulation
"""

__all__ = []

def count_levels(df, skill):
    """ Counts Levels of skill 

    :param df: dataframe with skill, Level and Trimestre columns
    :param skill: "Competence" or "Domaine"
    :returns: Datafram (lines -> skills and columns -> levels)

    """
    # TODO: Trimestre est arbitraire |mar. mars  7 17:55:16 EAT 2017
    return df.groupby([skill, "Level"]).count()["Trimestre"].unstack()

def count_skill_evaluation(df, skill):
    """ Count how many times the skill has been evaluated

    :param df: dataframe with skill, Level and Trimestre columns
    :param skill: "Competence" or "Domaine"

    """
    return count_levels(df, skill).T.sum()


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