import pandas as pd

def get_teams_from_staffel(staffel=None):

    dresden = pd.read_excel("data/beispiel_daten_dresden.xlsx")
    # staffeln = dresden["STAFFEL"].unique()

    if staffel:

        teams_in_staffel = {}
        teams = dresden[dresden["STAFFEL"] == staffel][
            [
                "MANNSCHAFT",
                "MS_ART",
                "SP_KLASSE",
                "SCHLUESSEL_ZAHL",
                "WUNSCH_WOCHENTAG",
                "WUNSCH_TAG",
                "WUNSCH_ZEIT",
                "SPIELSTAETTE",
            ]
        ].to_dict(orient="records")
        
        for t in teams:
            if t['MANNSCHAFT'] not in teams_in_staffel:
                teams_in_staffel[t['MANNSCHAFT']] = t
        

        return teams_in_staffel

    else:
        staffeln = dresden["STAFFEL"].unique()
        teams_in_staffel = {}
        staffel_type = None
        for staffel in staffeln:
            find_duplicates = []            
            teams_in_staffel[staffel] = []
            teams = dresden[dresden["STAFFEL"] == staffel][
                [
                    "MANNSCHAFT",
                    "MS_ART",
                    "SP_KLASSE",
                    "SCHLUESSEL_ZAHL",
                    "WUNSCH_WOCHENTAG",
                    "WUNSCH_TAG",
                    "WUNSCH_ZEIT",
                    "SPIELSTAETTE",
                ]
            ].to_dict(orient="records")
            
            for t in teams:
                if t['MANNSCHAFT'] not in find_duplicates:
                    teams_in_staffel[staffel].append(t)
                    find_duplicates.append(t['MANNSCHAFT'])

        return staffeln, teams_in_staffel