import matplotlib.pyplot as plt

import debug
from debug import debug_print


def draw(x_points=None, y_points=None):
    plt.plot(x_points)

    plt.ylim(ymin=0, ymax=120)
    plt.show()


def draw_two(title='', x_list1=None, x_list2=None):
    fig, ax = plt.subplots()
    ax.plot(x_list1)
    ax.plot(x_list2)
    ax.legend()

    plt.ylim(ymin=0, ymax=120)
    plt.title(title)
    plt.show()


def up_down_list(_list):
    min_value = min(_list)
    max_value = max(_list)
    return [-(x - min_value) + max_value for x in _list]


def min_max_list(src_list, tar_min, tar_max):
    src_min = min(src_list)
    src_max = max(src_list)
    src_range = abs(src_max - src_min)
    tar_range = abs(tar_max - tar_min)
    scale_ratio = tar_range / src_range
    floor_up = [v - src_min for v in src_list]
    scale_to = [v * scale_ratio for v in floor_up]
    floor_down = [v + tar_min for v in scale_to]
    return floor_down


def draw_three(title='', date_list=None, x_list1=None, x_list2=None, x_list3=None, light_list=None, screen_list=None):
    debug_print('draw_three, date_list = ', str(date_list))
    debug_print('draw_three, light_list = ', str(light_list))

    if screen_list is not None:
        screen_list = [(x - 2) * 4 for x in screen_list]
        screen_list = up_down_list(screen_list)
        # screen_list = map(lambda x: (x - 2) * 4, screen_list)

    if light_list is not None:
        light_list2 = min_max_list(light_list, -20, -10)

    fig, axs = plt.subplots(2, 1, sharex=True)
    # axs[0].axes.get_xaxis().set_visible(False)
    if date_list is None:
        axs[0].plot(x_list1, label='max', color='blue')
        axs[0].plot(x_list2, label='min', color='orange')
        axs[0].plot(x_list3, label='acc', color='green')
        axs[1].plot(screen_list, label='screen')
        axs[1].plot(light_list, label='light')
    else:
        axs[0].plot(date_list, x_list1, label='max', color='blue')
        axs[0].plot(date_list, x_list2, label='min', color='orange')
        axs[0].plot(date_list, x_list3, label='acc', color='green')
        axs[1].plot(date_list, screen_list, label='screen')
        axs[1].plot(date_list, light_list, label='light')

    plt.gcf().autofmt_xdate()
    # plt.ylim(ymin=-30, ymax=20000)
    # plt.title(title)

    if debug.DEBUG:
        plt.show()
    else:
        file_uri = '.doc/' + title + '.png'
        plt.savefig(file_uri)