<?php
// phpcs:ignoreFile

require_once __DIR__ . '/grower-session.php';
require_once __DIR__ . '/inc/grower_helpers.php';

$username = isset($_SESSION['myusername']) ? trim($_SESSION['myusername']) : '';

if ($username === '') {
    header('Location: /grower-login.php');
    exit();
}

function grower_normalize_relative_path_local($path)
{
    $path = str_replace('\\', '/', $path);
    $segments = explode('/', $path);
    $safeSegments = array();

    foreach ($segments as $segment) {
        if ($segment === '' || $segment === '.') {
            continue;
        }

        if ($segment === '..') {
            array_pop($safeSegments);
            continue;
        }

        $safeSegments[] = $segment;
    }

    return implode('/', $safeSegments);
}

function grower_build_web_path($username, $relativePath)
{
    $segments = array_merge(array($username), explode('/', str_replace('\\', '/', $relativePath)));
    $segments = array_filter($segments, 'strlen');

    $encoded = array_map('rawurlencode', $segments);

    return 'growers/' . implode('/', $encoded);
}

$folderParam = isset($_GET['folder']) ? $_GET['folder'] : '';
$currentRelativeFolder = '';
$errors = array();

if ($folderParam !== '') {
    $decoded = base64_decode($folderParam, true);

    if ($decoded === false) {
        $errors[] = 'The folder path you requested is invalid.';
    } else {
        $currentRelativeFolder = grower_normalize_relative_path_local($decoded);
    }
}

$rootDir = __DIR__;
$baseDir = realpath($rootDir . '/growers/' . $username);

if ($baseDir === false || !is_dir($baseDir)) {
    $errors[] = 'We could not find your grower folder yet. Please contact support for assistance.';
}

$currentDirectory = $baseDir;

if ($currentRelativeFolder !== '' && $baseDir !== false) {
    $candidate = realpath($baseDir . '/' . $currentRelativeFolder);

    if ($candidate === false || strpos($candidate, $baseDir) !== 0) {
        $errors[] = 'That folder is no longer available. Displaying your main folder instead.';
        $currentRelativeFolder = '';
    } else {
        $currentDirectory = $candidate;
    }
}

$directories = array();
$files = array();
$totalFileSize = 0;

if ($currentDirectory !== false && is_dir($currentDirectory)) {
    $items = scandir($currentDirectory);

    if ($items === false) {
        $errors[] = 'We could not read the contents of this folder.';
    } else {
        foreach ($items as $item) {
            if ($item === '.' || $item === '..') {
                continue;
            }

            $absoluteItem = $currentDirectory . DIRECTORY_SEPARATOR . $item;
            $relativeItem = $currentRelativeFolder === '' ? $item : $currentRelativeFolder . '/' . $item;
            $relativeItem = grower_normalize_relative_path_local($relativeItem);

            if (is_dir($absoluteItem)) {
                $itemCount = 0;

                try {
                    $iterator = new FilesystemIterator($absoluteItem, FilesystemIterator::SKIP_DOTS);

                    foreach ($iterator as $unused) {
                        $itemCount++;
                    }
                } catch (UnexpectedValueException $exception) {
                    $itemCount = 0;
                }

                $directories[] = array(
                    'name' => $item,
                    'encoded' => rawurlencode(base64_encode($relativeItem)),
                    'webPath' => '/' . grower_build_web_path($username, $relativeItem),
                    'items' => $itemCount,
                    'modified' => @filemtime($absoluteItem)
                );
            } elseif (is_file($absoluteItem)) {
                $size = @filesize($absoluteItem);
                $modified = @filemtime($absoluteItem);

                $files[] = array(
                    'name' => $item,
                    'size' => ($size === false) ? 0 : $size,
                    'modified' => $modified,
                    'webPath' => '/' . grower_build_web_path($username, $relativeItem)
                );

                if ($size !== false) {
                    $totalFileSize += $size;
                }
            }
        }
    }
}

usort($directories, function ($a, $b) {
    return strcasecmp($a['name'], $b['name']);
});

usort($files, function ($a, $b) {
    return strcasecmp($a['name'], $b['name']);
});

$directoryCount = count($directories);
$fileCount = count($files);

$breadcrumbs = array();
$breadcrumbs[] = array('label' => 'Home', 'url' => 'grower-files.php');

if ($currentRelativeFolder !== '') {
    $segments = explode('/', $currentRelativeFolder);
    $compound = array();
    $lastIndex = count($segments) - 1;

    foreach ($segments as $index => $segment) {
        $compound[] = $segment;
        $encodedPath = rawurlencode(base64_encode(implode('/', $compound)));
        $breadcrumbs[] = array(
            'label' => $segment,
            'url' => ($index === $lastIndex) ? null : 'grower-files.php?folder=' . $encodedPath
        );
    }
}

$parentLink = '';

if ($currentRelativeFolder !== '') {
    $segments = explode('/', $currentRelativeFolder);
    array_pop($segments);
    $parentRelative = implode('/', $segments);

    if ($parentRelative === '') {
        $parentLink = 'grower-files.php';
    } else {
        $parentLink = 'grower-files.php?folder=' . rawurlencode(base64_encode($parentRelative));
    }
}

$pageTitle = 'Grower File Browser';
$metaDescription = 'Browse and download load reports, tickets, and documents from your LASUCA grower folder.';
?>
<!DOCTYPE html>
<html lang="en" dir="ltr">
  <head>
    <meta charset="utf-8" />
    <title><?php echo htmlspecialchars($pageTitle, ENT_QUOTES, 'UTF-8'); ?></title>
    <meta name="viewport" content="width=device-width, initial-scale=1" />
    <meta name="description" content="<?php echo htmlspecialchars($metaDescription, ENT_QUOTES, 'UTF-8'); ?>" />
    <link rel="icon" type="image/x-icon" href="/images/favicon.ico" />
    <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/css/bootstrap.min.css" />
    <link rel="stylesheet" href="/new/css/styles.css" />
    <link rel="stylesheet" href="/new/css/lasuca-theme.css" />
    <link rel="stylesheet" href="/new/css/pages.css" />
    <link rel="stylesheet" href="/new/css/grower-portal.css" />
    <link rel="stylesheet" href="/new/css/grower-dashboard.css" />
  </head>
  <body class="lasuca-theme theme-dark grower-portal">
    <nav class="navbar navbar-expand-lg navbar-dark">
      <div class="container">
        <a class="navbar-brand" href="/grower-dashboard.php">
          <img src="/images/logo2.png" alt="LASUCA logo" />
          <span>Grower Portal</span>
        </a>
        <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#growerNav" aria-controls="growerNav" aria-expanded="false" aria-label="Toggle navigation">
          <span class="navbar-toggler-icon"></span>
        </button>
        <div class="collapse navbar-collapse" id="growerNav">
          <ul class="navbar-nav ms-auto mb-2 mb-lg-0">
            <li class="nav-item"><a class="nav-link" href="/home.php">Home</a></li>
            <li class="nav-item"><a class="nav-link" href="/grower-dashboard.php">Dashboard</a></li>
            <li class="nav-item"><a class="nav-link" href="/grower-files.php">Daily Reports</a></li>
            <li class="nav-item"><a class="nav-link" href="/grower-account.php">Manage Account</a></li>
            <li class="nav-item"><a class="nav-link" href="/grower-logout.php">Log Out</a></li>
            <?php include __DIR__ . '/inc/theme-toggle.php'; ?>
          </ul>
        </div>
      </div>
    </nav>

    <main>
      <header class="hero hero-sub">
        <div class="container">
          <span class="badge">Grower portal</span>
          <h1>Your grower files</h1>
          <p>
            Navigate your secure LASUCA folder to download daily transaction reports. Use the
            buttons below to jump between folders.
          </p>
        </div>
      </header>

      <section class="page-section py-5">
        <div class="container">
          <div class="grower-files-card">
            <div class="file-browser-header">
              <div>
                <p class="file-browser-summary mb-1">
                  Currently viewing:
                  <strong><?php echo $currentRelativeFolder === '' ? 'Home' : htmlspecialchars($currentRelativeFolder, ENT_QUOTES, 'UTF-8'); ?></strong>
                </p>
                <p class="file-browser-summary mb-0">
                  <?php echo $directoryCount; ?> folder<?php echo $directoryCount === 1 ? '' : 's'; ?> ·
                  <?php echo $fileCount; ?> file<?php echo $fileCount === 1 ? '' : 's'; ?> ·
                  Total size <?php echo htmlspecialchars(grower_format_filesize($totalFileSize), ENT_QUOTES, 'UTF-8'); ?>
                </p>
              </div>
              <div class="file-browser-actions">
                <?php if ($parentLink !== '') { ?>
                  <a class="btn btn-outline-success" href="<?php echo htmlspecialchars($parentLink, ENT_QUOTES, 'UTF-8'); ?>">&larr; Up one level</a>
                <?php } ?>
              </div>
            </div>

            <nav aria-label="Breadcrumb">
              <ol class="breadcrumb mb-3">
<?php foreach ($breadcrumbs as $crumb) {
    $label = htmlspecialchars($crumb['label'], ENT_QUOTES, 'UTF-8');
    if ($crumb['url'] !== null) { ?>
                <li class="breadcrumb-item"><a href="<?php echo htmlspecialchars($crumb['url'], ENT_QUOTES, 'UTF-8'); ?>"><?php echo $label; ?></a></li>
<?php } else { ?>
                <li class="breadcrumb-item active" aria-current="page"><?php echo $label; ?></li>
<?php }
} ?>
              </ol>
            </nav>

<?php if (!empty($errors)) { ?>
            <div class="mb-3">
<?php foreach ($errors as $error) { ?>
              <div class="alert alert-warning" role="alert"><?php echo htmlspecialchars($error, ENT_QUOTES, 'UTF-8'); ?></div>
<?php } ?>
            </div>
<?php } ?>

<?php if ($directoryCount === 0 && $fileCount === 0) { ?>
            <div class="file-empty">
              <p>We didn&rsquo;t find any items in this folder yet. Drop files into your grower directory or check back after the next reporting cycle.</p>
            </div>
<?php } else { ?>
            <div class="table-responsive">
              <table class="table table-hover align-middle mb-0">
                <thead>
                  <tr>
                    <th scope="col">Name</th>
                    <th scope="col" class="text-nowrap">Details</th>
                    <th scope="col" class="text-nowrap">Updated</th>
                    <th scope="col" class="text-end">Actions</th>
                  </tr>
                </thead>
                <tbody>
<?php foreach ($directories as $directory) {
    $dirName = htmlspecialchars($directory['name'], ENT_QUOTES, 'UTF-8');
    $dirUrl = 'grower-files.php?folder=' . htmlspecialchars($directory['encoded'], ENT_QUOTES, 'UTF-8');
    $modifiedLabel = $directory['modified']
        ? htmlspecialchars(grower_format_datetime(date('Y-m-d H:i:s', $directory['modified'])), ENT_QUOTES, 'UTF-8')
        : 'Unknown'; ?>
                  <tr>
                    <td class="fw-semibold">
                      <span class="badge bg-success-subtle text-success me-2">Folder</span>
                      <a class="text-decoration-none" href="<?php echo $dirUrl; ?>"><?php echo $dirName; ?></a>
                    </td>
                    <td><?php echo (int) $directory['items']; ?> item<?php echo $directory['items'] === 1 ? '' : 's'; ?></td>
                    <td><?php echo $modifiedLabel; ?></td>
                    <td class="text-end">
                      <a class="btn btn-sm btn-outline-success" href="<?php echo $dirUrl; ?>">Open</a>
                    </td>
                  </tr>
<?php }

foreach ($files as $file) {
    $fileName = htmlspecialchars($file['name'], ENT_QUOTES, 'UTF-8');
    $fileSize = htmlspecialchars(grower_format_filesize($file['size']), ENT_QUOTES, 'UTF-8');
    $filePath = htmlspecialchars($file['webPath'], ENT_QUOTES, 'UTF-8');
    $modifiedLabel = $file['modified']
        ? htmlspecialchars(grower_format_datetime(date('Y-m-d H:i:s', $file['modified'])), ENT_QUOTES, 'UTF-8')
        : 'Unknown'; ?>
                  <tr>
                    <td class="fw-semibold">
                      <span class="badge bg-primary-subtle text-primary me-2">File</span>
                      <a class="text-decoration-none" href="<?php echo $filePath; ?>" target="_blank" rel="noopener">
                        <?php echo $fileName; ?>
                      </a>
                    </td>
                    <td><?php echo $fileSize; ?></td>
                    <td><?php echo $modifiedLabel; ?></td>
                    <td class="text-end">
                      <a class="btn btn-sm btn-outline-primary" href="<?php echo $filePath; ?>" target="_blank" rel="noopener">Download</a>
                    </td>
                  </tr>
<?php } ?>
                </tbody>
              </table>
            </div>
<?php } ?>
          </div>
        </div>
      </section>
    </main>

    <footer class="lasuca-footer">
      <div class="container">
        <div class="row g-3 align-items-center">
          <div class="col-md-6">
            <strong>Louisiana Sugar Cane Cooperative</strong><br />
            341 Sugar Mill Road &middot; St. Martinville, LA 70582
          </div>
          <div class="col-md-6 text-md-end">
            <small>&copy; <?php echo date('Y'); ?> LASUCA. All rights reserved.</small>
          </div>
        </div>
      </div>
    </footer>

    <script src="https://cdn.jsdelivr.net/npm/bootstrap@5.2.3/dist/js/bootstrap.bundle.min.js"></script>
    <script src="/new/js/scripts.js"></script>
  </body>
</html>