# weatherPlotterExtension.py
#
# Plots monthly minimum and maximum weather data.
# Assumes CSV input has the following columns:
# - NAME (e.g., "OWATONNA MN US")
# - DATE (e.g., "1/10/2019")
# - PRCP (e.g., "0.03") <- string representing a float
# - SNOW (e.g., "8") <- string representing an int
# - TMAX (e.g., "32") <- string representing an int
# - TMIN (e.g., "13") <- string representing an int

import matplotlib.pyplot as plt
from weatherPlotter import parseData

def buildDictionaryByMonth(dates, temps):
    """
    Returns a dictionary mapping month number (January is 1, etc.)
    to a list of temperatures for that month.
    """
    return None # TODO  

def plotMonthlyData(minTempsDict, maxTempsDict):
    """
    Plots both the minimum, average, and maximum of each of the
    minimum temperatures maximum temperatures for each month.
    """
    pass # TODO

def main():
    filename = "weatherData.csv"

    dates, mins, maxes = parseData(filename)

    monthToMinTempsMap = buildDictionaryByMonth(dates, mins)
    monthToMaxTempsMap = buildDictionaryByMonth(dates, maxes)

    plotMonthlyData(monthToMinTempsMap, monthToMaxTempsMap)

if __name__ == "__main__":
    main()