# Author - Kristiāns Francis Cagulis
# Date - 22.11.2021

import pandas as pd
import matplotlib.pyplot as plt

data = pd.read_csv("company_sales_data.csv")


def task_1():
	plt.figure(figsize=(10, 6))  # (x, y)
	x = range(len(data["month_number"]))  # gets range of months
	plt.plot(x, data["total_profit"])  # sets up the plot
	plt.xticks(x, data["month_number"], fontsize=15)  # sets x value step
	plt.yticks(fontsize=15)
	plt.ylim(ymin=100000)  # sets minimal y value

	set_labels("Company profit per month", "Month number", "Total profit")

	plt.show()


def task_2():
	plt.figure(figsize=(10, 6))  # (x, y)

	x = range(len(data["month_number"]))  # gets range of months

	data_list = list(data.columns)[1:-2]  # gets and trims column names

	for column in data_list:
		plt.plot(x, data[column], lw=4, marker='o', ms=10)  # ms = marker size

	plt.xticks(x, data["month_number"], fontsize=15)  # sets x value step
	plt.yticks(fontsize=15)

	set_labels("Sales data", "Month number", "Sales units in number")

	new_data_list = list(map(lambda x: x.capitalize() + " Sales Data", data_list))  # capitalizes each word in list
	plt.legend(new_data_list, loc='upper left', fontsize=15)
	plt.show()


def task_3():
	plt.figure(figsize=(10, 6))  # (x, y)
	x = range(len(data["month_number"]))  # gets range of months

	plt.scatter(x, data["toothpaste"], s=75)  # sets up the plot
	plt.grid(ls='dashed', lw=1.5)  # sets grid line type and width
	plt.xticks(x, data["month_number"], fontsize=15)  # sets x value step
	plt.yticks(fontsize=15)

	set_labels("Toothpaste Sales data", "Month number", "Number of units Sold")
	plt.legend(["Toothpaste Sales data"], loc='upper left', fontsize=15)
	plt.show()


def task_4():
	items = ["facecream", "facewash"]

	data.plot(x="month_number", y=["facecream", "facewash"], kind='bar', figsize=(10, 6), fontsize=15)

	plt.xticks(rotation=0)  # rotates x lables to 0
	plt.grid(ls='dashed', lw=1.5)  # sets grid line type and width

	set_labels("Facewash and Facecream Sales data", "Month number", "Sales units in number")
	new_items_list = list(map(lambda x: x.capitalize() + " Sales Data", items))
	plt.legend(new_items_list, loc='upper left', fontsize=15)
	plt.show()


def set_labels(title: str, xlabel: str, ylabel: str):
	plt.title(title, fontsize=15)
	plt.xlabel(xlabel, fontsize=15)
	plt.ylabel(ylabel, fontsize=15)


def main():
	task = input("""Ivēlieties uzdevumu:
1 - pirmais uzdevums
2 - otrais uzdevums
3 - trešais uzdevums
4 - ceturtais uzdevums
""")

	if task == "1":
		task_1()
	elif task == "2":
		task_2()
	elif task == "3":
		task_3()
	elif task == "4":
		task_4()
	else:
		print("Tika ievadīts nepareiz cipars")


if __name__ == '__main__':
	main()