Chat. Dialogue between users

So, you are about to make a chat without knowing basic things…
(Haven’t you been sent to Your first 2D game from the official documentation yet?)))
It will be about @onready and everything else.

You have to understand that when you make a video that was recorded when Godot 4 didn’t even exist yet, there will be some differences… but I made a code from it: everything works if you dig around and think about where the necessary commands went…
I provide the code below, with some comments.

extends Control

@onready var chatLog 	= $VBoxContainer/RichTextLabel
@onready var inputLabel = $VBoxContainer/HBoxContainer/Label
@onready var inputField = $VBoxContainer/HBoxContainer/LineEdit
# onready -> @onready, also, export -> @export

var groups = [
	{'name': 'Team', 'color': '#34c5f1'},
	{'name': 'Match', 'color': '#f1c234'},
	{'name': 'Global', 'color': '#ffffff'},
]

var group_index = 0
var user_name = "Emilio"

func _ready():
#	inputField.connect("text_changed", self, "text_changed")
	inputField.connect("text_submitted", text_submitted)
	add_message('Godot', "The engine: ")
	change_group(0)
# text_entered, -> text_submitted

func _input(event):
	if event is InputEventKey:
		if event.pressed and event.keycode == KEY_ENTER:
			inputField.grab_focus()
		if event.pressed and event.keycode == KEY_ESCAPE:
			inputField.release_focus()
		if event.pressed and event.keycode == KEY_TAB:
			change_group(1)
# scancode -> keycode

func change_group(value):
	group_index += value
	if group_index > (groups.size() - 1):
		group_index = 0
	inputLabel.text = '[' + groups[group_index]['name'] + ']'
	inputLabel.set('theme_override_colors/font_color', Color(groups[group_index]['color']))

func add_message(username, text, group = 0):
	chatLog.append_text('\n')
	chatLog.append_text('[color=' + groups[group]['color'] + ']')
	chatLog.append_text('[' + username + ']: ')
	chatLog.append_text(text)
	#chatLog.append_text('[/color]')
# bbcode_text -> append_text()

func text_submitted(text):
	if text == '/h':
		add_message('help', "There is no help written yet.", 2)
		inputField.text = ''
		return
	if text != '':
		print(text)
		add_message(user_name, text, group_index)
		inputField.text = ''

True, after doing this, I found out that there is no internetwork here)))
But it is in other search results.