#!/usr/bin/env python36

# import tkinter as tk
import random
from statistics import mean

persons = 10
consider_persons = 3


class Person:
    def __init__(self):
        self.angle = random.randint(0, 359)
        self._hash = hash(self.angle)
        self.person_before = None

    def distance(self, howfar=1):
        """return Distance of some 2 members ahead"""
        if howfar == 1:
            return (self.person_before.angle - self.angle) % 360
        if howfar > 1:
            return self.person_before.distance(howfar - 1)
        else:
            raise RuntimeError("howfar my not be 0 or less")

    def avg(self, howfar=1):
        dists = []
        for i in range(1, howfar + 1):
            dists.append(self.distance(howfar=i))
        return mean(dists)

    def go_step(self, _min=1):
        # step = random.randint(_min, _max)
        step = self.avg()
        self.angle += step
        self.angle %= 360

    def __hash__(self):
        return self._hash

    def __eq__(self, other):
        return self.angle == other.angle


class Group:
    def __init__(self, persons):
        self.persons = persons
        self.optimaldist = 360 / persons
        self.fmt = " / ".join(("%d: %2d",) * self.persons)
        ps = set()
        while len(ps) < persons:
            ps.add(Person())
        perslist = sorted(ps, key=lambda x: x.angle)
        for i in range(0, len(perslist) - 1):
            perslist[i].person_before = perslist[i + 1]
        perslist[-1].person_before = perslist[0]
        self.ps = perslist

    def avg_error(self):
        return mean([abs(p.avg() - self.optimaldist) for p in self.ps])

    def __str__(self):
        general = "Group: %d members, %d average error" % (self.persons, self.avg_error())
        details = self.fmt % tuple([val for tup in [(p.angle, p.avg()) for p in self.ps] for val in tup])
        return "\n".join((general, details))
    # print("mean distance: %d == %d" % (36, mean([p.avg() for p in s])))
    # for p in l:
    #     print(p.angle, p.avg(howfar=1), p.avg(howfar=2), p.avg(howfar=3), p.avg(howfar=4), p.avg(howfar=5))


gr = Group(10)
print(gr)

# class Application(tk.Frame):
#     def __init__(self, master=None):
#         super().__init__(master)
#         self.pack()
#         self.create_widgets()
#
#     def create_widgets(self):
#         self.hi_there = tk.Button(self)
#         self.hi_there["text"] = "Hello World\n(click me)"
#         self.hi_there["command"] = self.say_hi
#         self.hi_there.pack(side="top")
#
#         self.quit = tk.Button(self, text="QUIT", fg="red",
#                               command=root.destroy)
#         self.quit.pack(side="bottom")
#
#     def say_hi(self):
#         print("hi there, everyone!")
#
# root = tk.Tk()
# app = Application(master=root)
# app.mainloop()