phoneProject

import os
import matplotlib.pyplot as plt
import numpy as np
from tabulate import tabulate
from collections import Counter

def tabelarno(phoneList):
    mydata = phoneList
    head = ["Ime", "Proizvođač", "Procesor", "Megapikseli kamere", "Boja", "Cena"]
    print(tabulate(mydata, headers=head, tablefmt="grid"))


def plot_phone_prices(phoneList):
    # izdvajanje cena
    cene = [float(phone[5]) for phone in phoneList]

    # pravljenje bar charta
    plt.bar(range(len(phoneList)), cene, tick_label=[phone[0] for phone in phoneList])
    plt.xlabel('Modeli telefona')
    plt.ylabel('Cena (EUR)')
    plt.title('Cene telefona')
    plt.xticks(rotation=45) # zbog citljivosti
    plt.show()


def plot_zastupljenost_brendova(phoneList):
    brendovi = [phone[1] for phone in phoneList]
    brojac_brendova = Counter(brendovi)

    plt.pie(brojac_brendova.values(), labels=brojac_brendova.keys(), autopct='%1.1f%%')
    plt.title('Zastupljenost brendova')
    plt.show()

def register():

    status = True

    while status:
        status = False
        username = input("Unesite korisnicko ime: ")
        with open("users.txt", "r") as file:
            for line in file:
                s = line.strip().split(":")
                if username == s[0]:
                    status = True
                    break
            if status:
                print("Korisnicko ime vec postoji, pokusajte ponovo! ")
            else:
                password = input("Unesite lozinku: ")

    with open("users.txt", "a") as file:
        file.write(f"{username}:{password}\n")
    print("Registracija uspesna!")


def login():
    username = input("Unesite korisničko ime: ")
    password = input("Unesite lozinku: ")
    tacnaSifra = False
    while not tacnaSifra:
        with open("users.txt", "r") as file:
            for line in file:
                stored_username, stored_password = line.strip().split(":")
                if username == stored_username and password == stored_password:
                    tacnaSifra = True
        if not tacnaSifra:
            print("Netačno korisničko ime ili lozinka.")
            username = input("Unesite korisničko ime: ")
            password = input("Unesite lozinku: ")
    print("Uspešno ste se ulogovali")

def admin_login():
    adminlogin = input("Unesite administratorsko ime: ")
    adminpass = input("Unesite administratorsku lozinku: ")

    tacnaSifra = False
    while not tacnaSifra:
        with open("admins.txt", "r") as file:
            for line in file:
                stored_username, stored_password = line.strip().split(":")
                if adminlogin == stored_username and adminpass == stored_password:
                    tacnaSifra = True
        if not tacnaSifra:
            print("Netačno korisničko ime ili lozinka.")
            adminlogin = input("Unesite korisničko ime: ")
            adminlogin = input("Unesite lozinku: ")
    print("Imate admin pristup.")

def obrisiNalog(username):
    # administratorska funkcija
    try:
        # pravimo listu korisnika, laksa manipulacija
        userList = []
        infile = open("users.txt", "r")
        # citam red po red
        line = infile.readline()
        while line:
            userList.append(line.rstrip("\n").split(":"))
            line = infile.readline()
        infile.close()

    except FileNotFoundError:
        print("Nema fajla sa korisnicima, pravim novi")
        userList = []


    os.system('cls')
    status = False
    for t in userList:
        if username == t[0]:
            while not status:
                userList.remove(t)
                print("Uspesno brisanje izabranog naloga")
                fajl = open("users.txt", "w")
                for t in userList:
                    fajl.write(t[0] + ":" + t[1] + "\n")
                fajl.close()
                exit()
        else:
            print("Takav nalog ne postoji. ")


#def obrisiTelefon():
    # administratorska funkcija


def save_phone_list(phoneList):
    try:
        with open("phoneList.txt", "w") as outfile:
            for phone in phoneList:
                # Join the phone data into a comma-separated string
                phone_line = ",".join(phone)
                outfile.write(phone_line + "\n")
            outfile.close()
        print("Lista telefona uspešno sačuvana.")
    except IOError:
        print("Greška pri čuvanju liste.")


def main():

    print("Dobrodošli!")

    choice = 0
    while choice != "1" and choice != "2":
        choice = input("Unesite '1' za registraciju, '2' za prijavu: ")
        if choice != "1" and choice != "2":
            print("Nepravilan izbor " + choice)
    if choice == "1":
        register()
    elif choice == "2":
        login()
    elif choice == "3":
        admin_login()

    try:

        # lista telefona
        phoneList = []
        infile = open("phoneList.txt", "r")
        # citamo red po red
        line = infile.readline()
        while line:  # is true
            phoneList.append(line.rstrip("\n").split(","))
            line = infile.readline()
        infile.close()
        # ovo cita i apenduje sve dok ne ponestane za citanje

    except FileNotFoundError:
        print("Fajl telefona nije pronadjen. ")
        print("Pravim novu listu! ")
        phoneList = []

    choice = 0
    while choice != "8":
        print("Menadzer telfona")
        print("1) Dodaj telefon")
        print("2) Pretrazi telefon")
        print("3) Prikazi telefone")
        print("4) Prikazi graf cena")
        print("5) Tabelarni prikaz")
        print("6) Prikaz zastupljenosti brendova")
        print("7) Izlađi i sačuvaj")
        choice = int(input())

        if choice == 1:
            print("Dodajem telefon...")
            nPhone = input("Unesi ime telefona: ")
            nManufacturer = input("Unesi proizvodjaca telefona: ")
            nCPU = input("Unesi procesor: ")
            nCamera = input("Unesi MP kamere: ")
            nColor = input("Unesi boju uredjaja: ")
            nPrice = input("Unesi cenu uredjaja: ")

            phoneList.append([nPhone, nManufacturer, nCPU, nCamera, nColor, nPrice])

        elif choice == 2:
            print("Pretrazujem telefon...")
            keyword = input("Unesi kljucnu rec: ")
            for phone in phoneList:
                if keyword in phone:
                    print(phone)

        elif choice == 3:
            print("Stampam sve unete telefone...")
            for i in range(len(phoneList)):
                print(phoneList[i])

        elif choice == 4:
            print("Graficki prikaz cena: ")
            plot_phone_prices(phoneList)

        elif choice == 5:
            tabelarno(phoneList)

        elif choice == 6:
            plot_zastupljenost_brendova(phoneList)

        elif choice == 7:
            print("Izlazim iz programa")
            save_phone_list(phoneList)
            exit()

    print("Program prekinut. ")


if __name__ == "__main__":
    main()