
<?php
require_once 'lib/common.php';
require_once 'lib/install.php';

// We store stuff in the session, to survive the redirect to self
session_start();

// Only run the installer when we're responding to the form
if ($_POST)
{
    // Here's the install
    $pdo = getPDO();
    list($rowCounts, $error) = installBlog($pdo);

    $password = '';
    if (!$error)
    {
        $username = 'admin';
        list($password, $error) = createUser($pdo, $username);
    }

    $_SESSION['count'] = $rowCounts;
    $_SESSION['error'] = $error;
    $_SESSION['username'] = $username;
    $_SESSION['password'] = $password;
    $_SESSION['try-install'] = true;

    // ... and here we redirect from POST to GET
    redirectAndExit('install.php');
}

// Let's see if we've just installed
$attempted = false;
if (isset($_SESSION['try-install']))
{
    $attempted = true;
    $count = $_SESSION['count'];
    $error = $_SESSION['error'];
    $username = $_SESSION['username'];
    $password = $_SESSION['password'];

    // Unset session variables, so we only report the install/failure once
    unset($_SESSION['count']);
    unset($_SESSION['error']);
    unset($_SESSION['username']);
    unset($_SESSION['password']);
    unset($_SESSION['try-install']);
}

?>
<!DOCTYPE html>
<html>
    <head>
        <title>Blog installer</title>
        <?php require 'templates/head.php' ?>
    </head>
    <body>
        <?php if ($attempted): ?>

            <?php if ($error): ?>
                <div class="error box">
                    <?php echo $error ?>
                </div>
            <?php else: ?>
                <div class="success box">
                    The database and demo data was created OK.

                    <?php // Report the counts for each table ?>
                    <?php foreach (array('post', 'comment') as $tableName): ?>
                        <?php if (isset($count[$tableName])): ?>
                            <?php // Prints the count ?>
                            <?php echo $count[$tableName] ?> new
                            <?php // Prints the name of the thing ?>
                            <?php echo $tableName ?>s
                            were created.
                        <?php endif ?>
                    <?php endforeach ?>

                    <?php // Report the new password ?>
                    The new '<?php echo htmlEscape($username) ?>' password is
                    <span class="install-password"><?php echo htmlEscape($password) ?></span>
                    (copy it to clipboard if you wish).
                </div>

                <p>
                    <a href="index.php">View the blog</a>,
                    or <a href="install.php">install again</a>.
                </p>
            <?php endif ?>

        <?php else: ?>

            <p>Click the install button to reset the database.</p>

            <form method="post">
                <input
                    name="install"
                    type="submit"
                    value="Install"
                />
            </form>

        <?php endif ?>
    </body>
</html>