<?php
/* hitler-clicker
 * api for account modification
 * © 2025 hitler.rip <git@hitler.rip>
 * licensed under AGPLv3-or-later; see LICENSE.md for more information
 */

header('Content-Type: application/json; charset=UTF-8');

try {
	$pdo = new PDO("mysql:host=127.0.0.1;dbname=hitlerclicker", "root", "aA1234Aa");
} catch(PDOException $e) {
	die('{ "status": "database offline" }');
};

$wrkarr = [];
$ifarr = [ "name", "password", "newname", "newpassword" ];
$postjson = json_decode(file_get_contents('php://input'), true);
foreach ($ifarr as $i):
	if (isset($postjson[$i])):
		$newarr = [
			"$i" => "$postjson[$i]",
		];
		$wrkarr = array_merge($wrkarr, $newarr);
	endif;
endforeach;

if (!isset($wrkarr["name"]) || trim($wrkarr["name"]) == ""):
	die('{ "status": "login (name) was not provided.\ncould not attempt to change account." }');
elseif (!isset($wrkarr["password"]) || trim($wrkarr["password"]) == ""):
	die('{ "status": "password was not provided.\ncould not attempt to change account." }');
else:

	$query = $pdo->prepare("SELECT name, password FROM users WHERE name LIKE ?");
	$query -> execute([$wrkarr["name"]]);
	$found = $query->fetch(PDO::FETCH_ASSOC);
	if ($found):

		if (!password_verify($wrkarr["password"], $found["password"])):
			die('{ "status": "wrong password." }');
		else:

			if (!isset($wrkarr["newname"]) || trim($wrkarr["newname"]) == ""):
				die('{ "status": "new name was not provided.\ncould not attempt to change account." }');
			elseif (!isset($wrkarr["newpassword"]) || trim($wrkarr["newpassword"]) == ""):
				die('{ "status": "new password was not provided.\ncould not attempt to change account." }');
			else:

				$query = $pdo->prepare("SELECT name FROM users WHERE name LIKE ?");
				$query -> execute([$wrkarr["newname"]]);
				$found = $query->fetch(PDO::FETCH_ASSOC);
				if ($found && $found["name"] != $wrkarr["name"]):
					die('{ "status": "this name is already taken." }');
				endif;

				$query = $pdo->prepare("UPDATE users SET name = :newname , password = :newpassword WHERE users.name = :name");
				$query -> execute([
					"newname" => filter_var($wrkarr["newname"]),
					"newpassword" => password_hash($wrkarr["newpassword"], PASSWORD_DEFAULT),
					"name" => filter_var($wrkarr["name"])
				]);

				echo '{ "status": "success" }';


			endif;


		endif;

	else:
		die('{ "status": "name does not exist in the database." }');
	endif;

endif;

?>