<?php
require_once __DIR__ . '/db/config.php';
@date_default_timezone_set('Asia/Jakarta');

$projectDescription = $_SERVER['PROJECT_DESCRIPTION'] ?? 'Sistem manajemen percetakan Kenanga Kreasindo untuk order, SPK, produksi, invoice, dan tracking customer.';
$projectImageUrl = $_SERVER['PROJECT_IMAGE_URL'] ?? '';
$projectName = $_SERVER['PROJECT_NAME'] ?? 'Kenanga Kreasindo Printing';

function e(string $value): string { return htmlspecialchars($value, ENT_QUOTES, 'UTF-8'); }
function rupiah(float $value): string { return 'Rp ' . number_format($value, 0, ',', '.'); }
function nextNumber(PDO $pdo, string $prefix, string $column): string {
    $stmt = $pdo->prepare("SELECT COUNT(*) AS total FROM print_orders WHERE $column LIKE :prefix");
    $stmt->execute([':prefix' => $prefix . '%']);
    $count = (int)($stmt->fetch()['total'] ?? 0) + 1;
    return $prefix . str_pad((string)$count, 5, '0', STR_PAD_LEFT);
}
function statusBadge(string $status): string {
    return match ($status) {
        'Order diterima' => 'secondary',
        'SPK dibuat' => 'info',
        'Produksi berjalan' => 'primary',
        'QC / Finishing' => 'warning',
        'Barang selesai' => 'success',
        'Invoice / Tagihan' => 'dark',
        default => 'secondary',
    };
}
function ensureSchema(PDO $pdo): void {
    $pdo->exec("CREATE TABLE IF NOT EXISTS print_orders (
        id INT UNSIGNED AUTO_INCREMENT PRIMARY KEY,
        order_no VARCHAR(40) NOT NULL UNIQUE,
        spk_no VARCHAR(40) NOT NULL UNIQUE,
        invoice_no VARCHAR(40) NOT NULL UNIQUE,
        customer_name VARCHAR(140) NOT NULL,
        customer_phone VARCHAR(40) NOT NULL,
        customer_email VARCHAR(160) NULL,
        project_name VARCHAR(180) NOT NULL,
        category VARCHAR(100) NOT NULL,
        quantity INT UNSIGNED NOT NULL DEFAULT 1,
        size_info VARCHAR(120) NULL,
        material VARCHAR(160) NULL,
        finishing VARCHAR(180) NULL,
        deadline DATE NULL,
        operator_name VARCHAR(120) NULL,
        cs_name VARCHAR(120) NULL,
        status VARCHAR(40) NOT NULL DEFAULT 'Order diterima',
        progress_note TEXT NULL,
        unit_price DECIMAL(14,2) NOT NULL DEFAULT 0,
        discount DECIMAL(14,2) NOT NULL DEFAULT 0,
        paid_amount DECIMAL(14,2) NOT NULL DEFAULT 0,
        created_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP,
        updated_at DATETIME NOT NULL DEFAULT CURRENT_TIMESTAMP ON UPDATE CURRENT_TIMESTAMP,
        INDEX idx_phone (customer_phone),
        INDEX idx_status (status)
    ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci");
}

$pdo = db();
ensureSchema($pdo);
$errors = [];
$notice = '';
$createdId = 0;
$statuses = ['Order diterima', 'SPK dibuat', 'Produksi berjalan', 'QC / Finishing', 'Barang selesai', 'Invoice / Tagihan'];

if ($_SERVER['REQUEST_METHOD'] === 'POST') {
    $action = $_POST['action'] ?? '';
    if ($action === 'create_order') {
        $customerName = trim((string)($_POST['customer_name'] ?? ''));
        $customerPhone = preg_replace('/[^0-9+]/', '', (string)($_POST['customer_phone'] ?? ''));
        $customerEmail = trim((string)($_POST['customer_email'] ?? ''));
        $project = trim((string)($_POST['project_name'] ?? ''));
        $category = trim((string)($_POST['category'] ?? ''));
        $qty = max(1, (int)($_POST['quantity'] ?? 1));
        $deadline = trim((string)($_POST['deadline'] ?? '')) ?: null;
        $unitPrice = max(0, (float)($_POST['unit_price'] ?? 0));
        $discount = max(0, (float)($_POST['discount'] ?? 0));
        $paid = max(0, (float)($_POST['paid_amount'] ?? 0));

        foreach ([
            'Nama customer' => $customerName,
            'Nomor telepon' => $customerPhone,
            'Nama pekerjaan' => $project,
            'Kategori' => $category,
        ] as $label => $value) {
            if ($value === '') { $errors[] = $label . ' wajib diisi.'; }
        }
        if ($customerEmail !== '' && !filter_var($customerEmail, FILTER_VALIDATE_EMAIL)) { $errors[] = 'Format email customer tidak valid.'; }

        if (!$errors) {
            $year = date('y');
            $month = date('m');
            $orderNo = nextNumber($pdo, 'ORD-' . date('Y') . '-', 'order_no');
            $invoiceNo = nextNumber($pdo, 'VI-' . $year . '-', 'invoice_no');
            $spkPrefix = str_pad((string)(((int)$pdo->query('SELECT COUNT(*) FROM print_orders')->fetchColumn()) + 1), 2, '0', STR_PAD_LEFT) . '-SPK-' . $month . '-' . date('Y');
            $spkNo = $spkPrefix;

            $stmt = $pdo->prepare('INSERT INTO print_orders (order_no, spk_no, invoice_no, customer_name, customer_phone, customer_email, project_name, category, quantity, size_info, material, finishing, deadline, operator_name, cs_name, status, progress_note, unit_price, discount, paid_amount) VALUES (:order_no, :spk_no, :invoice_no, :customer_name, :customer_phone, :customer_email, :project_name, :category, :quantity, :size_info, :material, :finishing, :deadline, :operator_name, :cs_name, :status, :progress_note, :unit_price, :discount, :paid_amount)');
            $stmt->execute([
                ':order_no' => $orderNo,
                ':spk_no' => $spkNo,
                ':invoice_no' => $invoiceNo,
                ':customer_name' => $customerName,
                ':customer_phone' => $customerPhone,
                ':customer_email' => $customerEmail ?: null,
                ':project_name' => $project,
                ':category' => $category,
                ':quantity' => $qty,
                ':size_info' => trim((string)($_POST['size_info'] ?? '')) ?: null,
                ':material' => trim((string)($_POST['material'] ?? '')) ?: null,
                ':finishing' => trim((string)($_POST['finishing'] ?? '')) ?: null,
                ':deadline' => $deadline,
                ':operator_name' => trim((string)($_POST['operator_name'] ?? '')) ?: null,
                ':cs_name' => trim((string)($_POST['cs_name'] ?? '')) ?: null,
                ':status' => 'SPK dibuat',
                ':progress_note' => trim((string)($_POST['progress_note'] ?? 'Order diterima dan SPK siap dicetak.')),
                ':unit_price' => $unitPrice,
                ':discount' => $discount,
                ':paid_amount' => $paid,
            ]);
            $createdId = (int)$pdo->lastInsertId();
            $notice = 'Order berhasil dibuat. SPK dan Invoice sudah otomatis tersedia.';
        }
    } elseif ($action === 'update_status') {
        $id = (int)($_POST['id'] ?? 0);
        $status = (string)($_POST['status'] ?? '');
        $note = trim((string)($_POST['progress_note'] ?? ''));
        if ($id > 0 && in_array($status, $statuses, true)) {
            $stmt = $pdo->prepare('UPDATE print_orders SET status = :status, progress_note = :note WHERE id = :id');
            $stmt->execute([':status' => $status, ':note' => $note, ':id' => $id]);
            $notice = 'Status produksi berhasil diperbarui.';
        }
    }
}

$trackResult = null;
if (isset($_GET['track_order'], $_GET['track_phone'])) {
    $trackOrder = trim((string)$_GET['track_order']);
    $trackPhone = preg_replace('/[^0-9+]/', '', (string)$_GET['track_phone']);
    $stmt = $pdo->prepare('SELECT * FROM print_orders WHERE order_no = :order_no AND customer_phone = :phone LIMIT 1');
    $stmt->execute([':order_no' => $trackOrder, ':phone' => $trackPhone]);
    $trackResult = $stmt->fetch() ?: false;
}

$orders = $pdo->query('SELECT * FROM print_orders ORDER BY created_at DESC LIMIT 25')->fetchAll();
$totalOrders = (int)$pdo->query('SELECT COUNT(*) FROM print_orders')->fetchColumn();
$activeOrders = (int)$pdo->query("SELECT COUNT(*) FROM print_orders WHERE status NOT IN ('Barang selesai','Invoice / Tagihan')")->fetchColumn();
$finishedOrders = (int)$pdo->query("SELECT COUNT(*) FROM print_orders WHERE status = 'Barang selesai'")->fetchColumn();
$finance = $pdo->query('SELECT COALESCE(SUM(quantity * unit_price - discount),0) AS billed, COALESCE(SUM(paid_amount),0) AS paid FROM print_orders')->fetch();
$receivable = max(0, (float)$finance['billed'] - (float)$finance['paid']);
?>
<!doctype html>
<html lang="id">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title><?= e($projectName) ?> — Order, SPK, Produksi & Invoice</title>
  <meta name="description" content="<?= e($projectDescription) ?>">
  <meta property="og:title" content="<?= e($projectName) ?>">
  <meta property="og:description" content="<?= e($projectDescription) ?>">
  <meta property="twitter:title" content="<?= e($projectName) ?>">
  <meta property="twitter:description" content="<?= e($projectDescription) ?>">
  <?php if ($projectImageUrl): ?>
  <meta property="og:image" content="<?= e($projectImageUrl) ?>">
  <meta property="twitter:image" content="<?= e($projectImageUrl) ?>">
  <?php endif; ?>
  <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/css/bootstrap.min.css" rel="stylesheet">
  <link rel="stylesheet" href="assets/css/custom.css?v=<?= time() ?>">
</head>
<body>
<nav class="navbar navbar-expand-lg kk-navbar sticky-top">
  <div class="container-fluid px-3 px-lg-4">
    <a class="navbar-brand d-flex align-items-center gap-2" href="#top" aria-label="Kenanga Kreasindo Home">
      <span class="brand-mark">K</span><span>Kenanga Kreasindo</span>
    </a>
    <button class="navbar-toggler" type="button" data-bs-toggle="collapse" data-bs-target="#navMenu" aria-controls="navMenu" aria-expanded="false" aria-label="Toggle navigation"><span class="navbar-toggler-icon"></span></button>
    <div class="collapse navbar-collapse" id="navMenu">
      <div class="navbar-nav ms-auto gap-lg-2">
        <a class="nav-link" href="#order">Order</a>
        <a class="nav-link" href="#produksi">Produksi</a>
        <a class="nav-link" href="#tracking">Tracking Customer</a>
        <a class="nav-link" href="#laporan">Keuangan</a>
      </div>
    </div>
  </div>
</nav>

<main id="top" class="container-fluid px-3 px-lg-4 py-4">
  <?php if ($notice || $errors): ?>
    <div class="toast-container position-fixed top-0 end-0 p-3">
      <div class="toast show" role="status" aria-live="polite" aria-atomic="true">
        <div class="toast-header"><strong class="me-auto"><?= $errors ? 'Validasi belum lengkap' : 'Berhasil' ?></strong><button type="button" class="btn-close" data-bs-dismiss="toast" aria-label="Close"></button></div>
        <div class="toast-body"><?= $errors ? e(implode(' ', $errors)) : e($notice) ?></div>
      </div>
    </div>
  <?php endif; ?>

  <section class="hero panel mb-4" aria-labelledby="heroTitle">
    <div class="row g-4 align-items-center">
      <div class="col-lg-7">
        <p class="eyebrow mb-2">Sistem Percetakan</p>
        <h1 id="heroTitle">Order masuk, SPK, produksi, invoice, dan tracking customer dalam satu alur.</h1>
        <p class="hero-copy mb-4">MVP awal untuk Percetakan Kenanga Kreasindo: admin membuat order, sistem menerbitkan SPK dan invoice, produksi memperbarui status, customer mengecek progres memakai nomor order + telepon.</p>
        <div class="d-flex flex-wrap gap-2">
          <a href="#order" class="btn btn-dark btn-lg">Buat Order & SPK</a>
          <a href="#tracking" class="btn btn-outline-dark btn-lg">Cek Status Customer</a>
        </div>
      </div>
      <div class="col-lg-5">
        <div class="company-card">
          <div class="small text-muted">Percetakan</div>
          <h2 class="h4 mb-3">Kenanga Kreasindo</h2>
          <div class="meta-row"><span>Alamat</span><strong>Perum BCL Jln Kenanga Raya</strong></div>
          <div class="meta-row"><span>Email</span><strong>kenangakreasindo@gmail.com</strong></div>
          <div class="meta-row"><span>Runtime</span><strong>PHP <?= e(PHP_VERSION) ?></strong></div>
        </div>
      </div>
    </div>
  </section>

  <section id="laporan" class="row g-3 mb-4" aria-label="Ringkasan laporan">
    <div class="col-6 col-lg-3"><div class="stat-card"><span>Total Order</span><strong><?= $totalOrders ?></strong></div></div>
    <div class="col-6 col-lg-3"><div class="stat-card"><span>Produksi Aktif</span><strong><?= $activeOrders ?></strong></div></div>
    <div class="col-6 col-lg-3"><div class="stat-card"><span>Barang Selesai</span><strong><?= $finishedOrders ?></strong></div></div>
    <div class="col-6 col-lg-3"><div class="stat-card"><span>Piutang</span><strong><?= e(rupiah($receivable)) ?></strong></div></div>
  </section>

  <div class="row g-4">
    <section id="order" class="col-xl-5" aria-labelledby="orderTitle">
      <div class="panel h-100">
        <div class="section-heading">
          <p class="eyebrow">Penerimaan Order</p>
          <h2 id="orderTitle">Buat order + SPK</h2>
        </div>
        <form method="post" class="kk-form" novalidate>
          <input type="hidden" name="action" value="create_order">
          <div class="row g-3">
            <div class="col-md-6"><label class="form-label">Nama Customer *</label><input class="form-control" name="customer_name" required></div>
            <div class="col-md-6"><label class="form-label">Telepon *</label><input class="form-control" name="customer_phone" required placeholder="08..."></div>
            <div class="col-12"><label class="form-label">Email</label><input class="form-control" name="customer_email" type="email" placeholder="opsional"></div>
            <div class="col-md-8"><label class="form-label">Nama Pekerjaan *</label><input class="form-control" name="project_name" required placeholder="Contoh: Banner Grand Opening"></div>
            <div class="col-md-4"><label class="form-label">Kategori *</label><select class="form-select" name="category" required><option value="Digital Printing">Digital Printing</option><option value="Offset">Offset</option><option value="Merchandise">Merchandise</option><option value="Apparel">Apparel</option><option value="Lainnya">Lainnya</option></select></div>
            <div class="col-md-4"><label class="form-label">Qty *</label><input class="form-control" name="quantity" type="number" min="1" value="1" required></div>
            <div class="col-md-4"><label class="form-label">Ukuran</label><input class="form-control" name="size_info" placeholder="A3 / 3x1 m"></div>
            <div class="col-md-4"><label class="form-label">Deadline</label><input class="form-control" name="deadline" type="date"></div>
            <div class="col-md-6"><label class="form-label">Bahan</label><input class="form-control" name="material" placeholder="Flexi 280 / Art carton"></div>
            <div class="col-md-6"><label class="form-label">Finishing</label><input class="form-control" name="finishing" placeholder="Laminasi, potong, mata ayam"></div>
            <div class="col-md-6"><label class="form-label">CS</label><input class="form-control" name="cs_name" placeholder="Nama CS"></div>
            <div class="col-md-6"><label class="form-label">Operator</label><input class="form-control" name="operator_name" placeholder="Nama operator"></div>
            <div class="col-md-4"><label class="form-label">Harga / Unit</label><input class="form-control money-input" name="unit_price" type="number" min="0" value="0"></div>
            <div class="col-md-4"><label class="form-label">Diskon</label><input class="form-control money-input" name="discount" type="number" min="0" value="0"></div>
            <div class="col-md-4"><label class="form-label">Terbayar</label><input class="form-control money-input" name="paid_amount" type="number" min="0" value="0"></div>
            <div class="col-12"><label class="form-label">Detail Pesanan / Catatan SPK</label><textarea class="form-control" name="progress_note" rows="3" placeholder="Instruksi file, warna, referensi, catatan operator..."></textarea></div>
          </div>
          <div class="d-flex justify-content-between align-items-center mt-4">
            <small class="text-muted">* wajib diisi. Nomor order, SPK, dan invoice otomatis.</small>
            <button class="btn btn-dark" type="submit">Simpan Order</button>
          </div>
        </form>
      </div>
    </section>

    <section id="produksi" class="col-xl-7" aria-labelledby="productionTitle">
      <div class="panel h-100">
        <div class="section-heading d-flex justify-content-between align-items-start gap-3">
          <div><p class="eyebrow">Produksi & Monitoring</p><h2 id="productionTitle">Daftar order terbaru</h2></div>
          <?php if ($createdId): ?><a class="btn btn-outline-dark btn-sm" href="order_detail.php?id=<?= $createdId ?>">Lihat order baru</a><?php endif; ?>
        </div>
        <?php if (!$orders): ?>
          <div class="empty-state"><strong>Belum ada order.</strong><span>Buat order pertama untuk menghasilkan SPK, tracking, dan invoice.</span></div>
        <?php else: ?>
          <div class="table-responsive">
            <table class="table align-middle kk-table">
              <thead><tr><th>Order</th><th>Customer</th><th>Pekerjaan</th><th>Status</th><th>Tagihan</th><th>Aksi</th></tr></thead>
              <tbody>
              <?php foreach ($orders as $order): $amount = ((float)$order['quantity'] * (float)$order['unit_price']) - (float)$order['discount']; ?>
                <tr>
                  <td><strong><?= e($order['order_no']) ?></strong><div class="small text-muted"><?= e(date('d M Y', strtotime($order['created_at']))) ?></div></td>
                  <td><?= e($order['customer_name']) ?><div class="small text-muted"><?= e($order['customer_phone']) ?></div></td>
                  <td><?= e($order['project_name']) ?><div class="small text-muted"><?= e($order['category']) ?> · <?= (int)$order['quantity'] ?> pcs</div></td>
                  <td><span class="badge text-bg-<?= e(statusBadge($order['status'])) ?>"><?= e($order['status']) ?></span></td>
                  <td><?= e(rupiah(max(0, $amount))) ?><div class="small text-muted">Bayar <?= e(rupiah((float)$order['paid_amount'])) ?></div></td>
                  <td><div class="btn-group btn-group-sm"><a class="btn btn-outline-dark" href="order_detail.php?id=<?= (int)$order['id'] ?>">Detail</a><a class="btn btn-outline-dark" href="spk.php?id=<?= (int)$order['id'] ?>">SPK</a><a class="btn btn-outline-dark" href="invoice.php?id=<?= (int)$order['id'] ?>">Invoice</a></div></td>
                </tr>
              <?php endforeach; ?>
              </tbody>
            </table>
          </div>
        <?php endif; ?>
      </div>
    </section>
  </div>

  <section id="tracking" class="panel mt-4" aria-labelledby="trackingTitle">
    <div class="row g-4 align-items-start">
      <div class="col-lg-5">
        <div class="section-heading"><p class="eyebrow">Customer Portal</p><h2 id="trackingTitle">Cek progres order</h2></div>
        <p class="text-muted">Customer tidak perlu login. Masukkan nomor order dan telepon yang tercatat di order.</p>
        <form method="get" class="row g-2">
          <div class="col-md-6"><label class="form-label">Nomor Order</label><input class="form-control" name="track_order" value="<?= e((string)($_GET['track_order'] ?? '')) ?>" placeholder="ORD-2026-00001" required></div>
          <div class="col-md-6"><label class="form-label">Telepon</label><input class="form-control" name="track_phone" value="<?= e((string)($_GET['track_phone'] ?? '')) ?>" placeholder="08..." required></div>
          <div class="col-12"><button class="btn btn-dark" type="submit">Cek Status</button></div>
        </form>
      </div>
      <div class="col-lg-7">
        <?php if ($trackResult === null): ?>
          <div class="empty-state"><strong>Hasil tracking muncul di sini.</strong><span>Gunakan nomor order dari admin/Kasir.</span></div>
        <?php elseif ($trackResult === false): ?>
          <div class="alert alert-warning mb-0">Order tidak ditemukan. Pastikan nomor order dan telepon sudah benar.</div>
        <?php else: ?>
          <div class="tracking-card">
            <div class="d-flex justify-content-between gap-3 flex-wrap"><div><span class="small text-muted">Order</span><h3><?= e($trackResult['order_no']) ?></h3></div><span class="badge text-bg-<?= e(statusBadge($trackResult['status'])) ?> align-self-start"><?= e($trackResult['status']) ?></span></div>
            <p class="mb-2"><strong><?= e($trackResult['project_name']) ?></strong> — <?= e($trackResult['category']) ?>, <?= (int)$trackResult['quantity'] ?> pcs</p>
            <p class="text-muted mb-3"><?= nl2br(e((string)$trackResult['progress_note'])) ?></p>
            <ol class="progress-steps">
              <?php $current = array_search($trackResult['status'], $statuses, true); foreach ($statuses as $i => $s): ?>
                <li class="<?= $i <= (int)$current ? 'done' : '' ?>"><span><?= e($s) ?></span></li>
              <?php endforeach; ?>
            </ol>
          </div>
        <?php endif; ?>
      </div>
    </div>
  </section>
</main>

<footer class="container-fluid px-3 px-lg-4 pb-4">
  <div class="footer-line">© <?= date('Y') ?> Kenanga Kreasindo · Perum BCL Jln Kenanga Raya · kenangakreasindo@gmail.com</div>
</footer>
<script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.3/dist/js/bootstrap.bundle.min.js"></script>
<script src="assets/js/main.js?v=<?= time() ?>"></script>
</body>
</html>