#!/home/alpus/anaconda3/bin/python3
# -*- coding: UTF-8 -*-

import sys
import re
import matplotlib.pyplot as plt

best_rank = -99999999999
best_person = None
data = dict()
try:
        f = open("/home/alpus/Work/Rating/data", 'r');
        for line in f:
                person, rank = line.split()
                data[person] = int(rank)
                if int(rank) > best_rank:
                        best_rank = int(rank)
                        best_person = person
except:
        pass

maxlen = 10
if len(sys.argv) == 1:
        for person in sorted(data, key=lambda x: -data[x]):
                symb = '>'
                if data[person] < 0:
                        symb = '<'
                print(' ' * int(maxlen - len(person)) + person + '|' +
                        symb * int(50 / best_rank * int(abs(data[person]))) + "| " + str(data[person]))
elif len(sys.argv) == 2 and sys.argv[1] == 'add':
        print('Name: ', end = '')
        person = input()
        if len(person) > maxlen:
                print("Name should be shorter then", maxlen, "symbols!")
                exit()
        print('Points: ', end = '')
        points = input()
        if re.match('^-?\d+$', points) is not None:
                if person in data:
                        data[person] += int(points)
                else:
                        data[person] = points
                print('Now', person, 'has', data[person], 'points')
        else:
                print("It's not a number!")
elif len(sys.argv) == 2 and sys.argv[1] == 'del':
        print('Name: ', end = '')
        person = input()
        if person not in data:
                print("Who is it?")
                exit()
        else:
                print(person, "and he's", data[person], "points deleted!")
                data.pop(person)
elif len(sys.argv) == 2 and sys.argv[1] == 'ren':
        print('Old name: ', end = '')
        old_person = input()
        if old_person not in data:
                print("Who is it?")
                exit()
        print('New name: ', end = '')
        new_person = input()
        if len(new_person) > maxlen:
                print("Name should be shorter then", maxlen, "symbols!")
                exit()
        elif new_person in data:
                print("Name exists")
                exit()
        else:
                data[new_person] = data[old_person]
                data.pop(old_person);
                print('Name changed from', old_person, 'to', new_person)
                print('Now', new_person, 'has', data[new_person], 'points')
elif len(sys.argv) == 2 and sys.argv[1] == 'his':
        plt.grid(True, )
        plt.barh(range(len(data)), sorted(data.values()), height=0.5, align='center')
        plt.xlabel('Rating')
        plt.yticks(range(len(data)), sorted(data, key=lambda x: data[x]))
        plt.tick_params(axis='both', labelsize=15)
        plt.show()
else:
        print('nothing to check rating')
        print('"add" - to add some points to someone')
        print('"del" - to del someone from list')
        print('"his" - to show pretty histogram')
        print('"ren" - to rename someone')


f = open('/home/alpus/Work/Rating/data', 'w')
for person in data:
        f.write(person + ' ' + str(data[person]) + '\n');
f.close()