<?php

/*
ERROR HANDLING
*/
declare(strict_types=1);
ini_set('display_errors', '1');
ini_set('display_startup_errors', '1');
error_reporting(E_ALL);
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);

include 'config.php';

// check if user is already logged in
if (is_logged() === true)
{
    //Redirect user to homepage page after 5 seconds.
    header("refresh:2;url=home.php");
    exit; //
}


if ($_SERVER['REQUEST_METHOD'] == "POST")
{
    if (isset($_POST["login_username_or_email"]) &&
isset($_POST["login_password"]))
    {
        $username_or_email = trim($_POST["login_username_or_email"]); //
        $password = $_POST["login_password"];

        //Select Username or Email to check against Mysql DB if they are
        already registered or not.
        $stmt = mysqli_stmt_init($conn);

        if(strpos("$username_or_email", "@"))
        {
            $email = $username_or_email;
            $username = "";

            $query = "SELECT ids, usernames, passwords, emails,
            accounts_activations_statuses FROM users WHERE emails = ?";
            $stmt = mysqli_prepare($conn, $query);
            mysqli_stmt_bind_param($stmt, 's', $email);
            mysqli_stmt_execute($stmt);
            //$result = mysqli_stmt_get_result($stmt); //Which line to use ?
            This line or the next ?
            $result = mysqli_stmt_bind_result($stmt, $db_id, $db_username,
            $db_password, $db_email, $db_account_activation_status); //
            Which line to use ? This line or the one above ?
        }
        else
        {
            $username = $username_or_email;
            $email = "";
            $query = "SELECT ids, usernames, passwords, emails,
            accounts_activations_statuses FROM users WHERE usernames = ?";
            $stmt = mysqli_prepare($conn, $query);
            mysqli_stmt_bind_param($stmt, 's', $username);
            mysqli_stmt_execute($stmt);
            //$result = mysqli_stmt_get_result($stmt); //Which line to use ?
            This line or the next ?
            $result = mysqli_stmt_bind_result($stmt, $db_id, $db_username,
            $db_password, $db_email, $db_account_activation_status); //
            Which line to use ? This line or the one above ?
        }

        $row = mysqli_stmt_fetch($stmt); //Which line to use ? This line or
        2 of the next 2 ?

        mysqli_stmt_close($stmt);

        printf("%s (%s)n",$row["usernames"],$row["passwords"]);

        if ($result == false)
        {
            echo "No result!";// For debugging purpose!
            exit();
        }
        elseif ($row['accounts_activations_statuses'] == '0')
        {
            {
                echo "You have not activated your account yet! Check your
                email for instructions on how to activate it.
                Check your spam folder if you don't find an email from us.";
                exit();
             }
        }
        else
        {

            if (password_verify($password, $db_password))
            {
                echo "IF triggered for password_verify! password_verify ok";
                // For debugging purpose!

                $_SESSION["user"] = $username;
                header("location:home.php?user=$username");
        }
        else
        {
            echo "Incorrect User Credentials !';<br>";
            exit();
        }
    }
}