import matplotlib.pyplot as plt


def make_plot(fname, id):
    with open(fname, 'r') as f:
        lines = [line.rstrip() for line in f]
    ax1 = []
    ax2 = []
    ax3 = []
    cnt = 0
    for l in lines:
        b = l.split("\t")
        args = b[1].split(",")
        ax1.append([cnt, args[0]])
        ax2.append([cnt, args[1]])
        ax3.append([cnt, args[2]])
        cnt += 1
    ax1 = [list(i) for i in zip(*ax1)]
    ax2 = [list(i) for i in zip(*ax2)]
    ax3 = [list(i) for i in zip(*ax3)]
    plt.figure(figsize=(20,10))
    plt.title("акселерометр кровати %s" % id, fontsize=20)
    plt.plot(ax1[0], ax1[1],'g-')
    plt.plot(ax2[0], ax2[1],'r-')
    plt.plot(ax3[0], ax3[1],'b-')
    img_name = "%s_chart.png" % fname
    plt.savefig(img_name)
    return(img_name)
    
fname = './tmp/sb_2'
id = 2
img_file = make_plot(fname, id)
print(img_file)