from PIL import Image, ImageFont, ImageDraw


def draw_text(draw, x, y, text, font):
    shadowcolor = (0, 0, 0)
    fillcolor = (255, 255, 255)
    # thin border
    draw.text((x - 1, y), text, font=font, fill=shadowcolor)
    draw.text((x + 1, y), text, font=font, fill=shadowcolor)
    draw.text((x, y - 1), text, font=font, fill=shadowcolor)
    draw.text((x, y + 1), text, font=font, fill=shadowcolor)

    # thicker border
    draw.text((x - 1, y - 1), text, font=font, fill=shadowcolor)
    draw.text((x + 1, y - 1), text, font=font, fill=shadowcolor)
    draw.text((x - 1, y + 1), text, font=font, fill=shadowcolor)
    draw.text((x + 1, y + 1), text, font=font, fill=shadowcolor)

    # now draw the text over it
    draw.text((x, y), text, font=font, fill=fillcolor)


def write_text(image_path, text, font_type='this.ttf'):
    text = text
    in_path = image_path
    out_path = image_path

    img = Image.open(in_path)
    img_drawer = ImageDraw.Draw(img)
    width, height = img.size
    text_array = text.split()
    size = height // 7
    font = ImageFont.truetype(font_type, size)
    text_length = font.getsize(text)[0] / 2
    x0 = 0
    i = 0
    while x0 <= text_length:
        x0 += font.getsize(text_array[i])[0]
        i += 1
    i -= 1
    upper_text = ' '.join(text_array[:i])
    bottom_text = ' '.join(text_array[i:])
    x0 = font.getsize(upper_text)[0]
    x1, y0 = font.getsize(bottom_text)
    max_x = max(x0, x1)
    k = max_x / width * 1.1
    if k >= 1:
        size = size // k
        font = ImageFont.truetype(font_type, int(size))
        x0, y0 = font.getsize(upper_text)
        x1 = font.getsize(bottom_text)[0]
    upper_x = (width - x0) / 2
    bottom_x = (width - x1) / 2
    y = height / 30
    draw_text(img_drawer, upper_x, y, upper_text, font)
    draw_text(img_drawer, bottom_x, height - y - y0, bottom_text, font)
    img.save(out_path)
    img.show()