<?php

/**
 * Form to create your first character.
 */
function char_controller_create_first_get(): void
{
	auth_only();

	// If the user already has a character, redirect them to the main page.
	if (char_count(user('id')) > 0) redirect('/');

	echo render('layouts/basic', ['view' => 'pages/chars/first']);
}

/**
 * Create a character for the currently logged in user.
 */
function char_controller_create_post(): void
{
	auth_only();
	csrf_ensure();

	$errors = [];

	$name = $_POST['name'] ?? '';

	// Trim the input.
	$name = trim($name);

	/*
		A name is required.
		A name must be between 3 and 18 characters.
		A name must contain only alphanumeric characters and spaces.
	*/
	if (empty($name) || strlen($name) < 3 || strlen($name) > 18 || !ctype_alnum(str_replace(' ', '', $name))) {
		$errors['name'][] = 'Name is required and must be between 3 and 18 characters long and contain only alphanumeric characters and spaces.';
	}

	/*
		A character's name must be unique.
	*/
	if (char_name_exists($name)) $errors['name'][] = 'Name is already taken.';

	// If there are errors at this point, send them to the page with errors flashed.
	if (!empty($errors)) {
		flash('errors', $errors);
		redirect('/');
	}

	// Create the character
	$char = char_create(user('id'), $name);
	if ($char === false) router_error(400);

	// Create the auxiliary tables
	char_location_create($char);
	char_wallet_create($char);
	char_gear_create($char);

	// Set the character as the user's selected character
	change_user_character($char);

	redirect('/');
}