how to add segments to the snake body

[blacklight]

Hi so I don't really understand how to add a segment to the correct position after the snake has eaten the fruit.
Can someone assist me with this? note: look in the conditional for if the snake has made contact with the fruit. I already have a concept for loop there.

import pygame
import time
import random
pygame.font.init()

# global variables
game = True
width, height = 500, 500
x, y = 20, 30
x2, y2 = 240, 250
lives = 3
answer = "yes"

segments = []

# setting up the font object
font = pygame.font.SysFont("comicsans", 40)
lose = font.render("You lost!", 1, (255,255,255), (250,250))
lose_width = lose.get_width()

# setting up screen
WIN = pygame.display.set_mode((500,500))
pygame.display.set_caption("Snake by Sam")

# load the background
BG = pygame.image.load("snake.png")
BG_resize = pygame.transform.scale(BG, (width, height))
WIN.blit(BG_resize,(0,0))
WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))

# draw square on screen
snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
key = None

# draw fruit(circle), setup
fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))

def rand():
    global x2, y2
    x2 = random.randint(0, 490)
    y2 = random.randint(0, 490)

def move():
    global key
    global snake
    global x
    global y
    global fruit
    if answer == "yes" or "y" or "Yes":
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))
        snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))

    if key == "d":        
        x = snake.left
        time.sleep(0.02)
        x = x + 10
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))

        snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))

    if key == "s":        
        y = snake.top
        time.sleep(0.02)
        y = y + 10
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))

        snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
    if key == "w":        
        y = snake.top
        time.sleep(0.02)
        y = y - 10
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))

        snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))

    if key == "a":        
        x = snake.left
        time.sleep(0.02)
        x = x - 10
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))

        snake = pygame.draw.rect(WIN, (255,0,0), (x,y,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))

# mainloop
while game:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            game = False
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_d:
                WIN.blit(BG_resize,(0,0))
                key = "d"
            if event.key == pygame.K_w:
                WIN.blit(BG_resize,(0,0))
                key = "w"
            if event.key == pygame.K_s:
                WIN.blit(BG_resize,(0,0))
                key = "s"
            if event.key == pygame.K_a:
                WIN.blit(BG_resize,(0,0))
                key = "a"
    move()

    # border control
    if snake.left > 490:
        WIN.blit(BG_resize,(0,0))
        snake = pygame.draw.rect(WIN, (255,0,0), (250,250,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        x,y = 250, 250
        key = None
        lives -= 1
    if snake.left == 0:
        WIN.blit(BG_resize,(0,0))
        snake = pygame.draw.rect(WIN, (255,0,0), (250,250,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        x,y = 250, 250
        key = None
        lives -= 1
    if snake.top > 490:
        WIN.blit(BG_resize,(0,0))
        snake = pygame.draw.rect(WIN, (255,0,0), (250,250,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        x,y = 250, 250
        key = None
        lives -= 1
    if snake.top == 0:
        WIN.blit(BG_resize,(0,0))
        snake = pygame.draw.rect(WIN, (255,0,0), (250,250,20,20))
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        x,y = 250, 250
        key = None
        lives -= 1

    # check if the snake has made contact with the fruit.   
    if snake.left < fruit.left + 20 and snake.left > fruit.left - 20 and snake.top < fruit.top + 25 and snake.top > fruit.top - 25: 
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render(f"Lives: {str(lives)}", 0 , (255,255,255)), (10,5))        
        rand()
        fruit = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        # add a segment
        new_segment = pygame.draw.rect(WIN, (0,0,255), (x2,y2,20,20))
        segments.append(new_segment)

    # move the following segment to the next position
        for index in range(len(segments) -1, 0, -1):
            pass
                     

    
    if lives == 0:
        WIN.blit(BG_resize,(0,0))
        WIN.blit(font.render("You lost!", 0, (255,255,255)), (250 - (lose_width/2),250))
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                pygame.quit()
            if event.type == pygame.KEYDOWN:
                WIN.blit(BG_resize,(0,0))
                lives = 3
                rand()

    pygame.display.update()