import math
from indtask1 import calc

def generator(num=100):
    A = 2
    T =7
    phase = 0.35

    xval = []
    for i in range(num):
        val =A*math.sin(2*math.pi*i/T + phase)
        xval.append(val)

    return xval

def output(xval,T):
    yval = []
    yn = calc(xval[0],0,T)
    yval.append(yn)

    for i in range(1,len(xval)):
        yn = calc(xval[i], yval[i-1], T)
        yval.append(yn)

    return(yval)

def writer(xval,yval,filename='result.txt'):
    with open(filename, 'w', encoding = 'utf-8') as file:
        for i in range(len(xval)):
            file.write(f'{xval[i]}\t{yval[i]}\n')

    print('Сохранено в result.txt')


def main():
    num =100
    T = 3
    print('Вход:')
    xval =generator(num)
    print(xval)
    print('Выход:')
    yval= output(xval,T)
    print(yval)

    writer(xval,yval)

    print('Первые пять:')
    for i in range(5):
        print(f'{i}\t{xval[i]}\t{yval[i]}\n')