<?php
/**
 * admin/suppliers.php
 */

declare(strict_types=1);

$page_title  = 'Tedarikçiler';
$active_menu = 'suppliers';

require_once __DIR__ . '/../includes/db.php';
require_once __DIR__ . '/../includes/auth.php';
require_once __DIR__ . '/../includes/functions.php';
require_once __DIR__ . '/../includes/csrf.php';

require_permission('suppliers');

require_once __DIR__ . '/../includes/admin_layout.php';

$filter_status = get_str('status', 'all');
$filter_name   = get_str('name');

// is_deleted kolonu var mı?
$has_deleted_col = (bool)db_value(
    "SELECT COUNT(*) FROM information_schema.COLUMNS
      WHERE TABLE_SCHEMA=DATABASE() AND TABLE_NAME='suppliers' AND COLUMN_NAME='is_deleted'"
);

$tab = get_str('tab', 'active'); // active | deleted

$where  = $has_deleted_col
    ? ($tab === 'deleted' ? ['s.is_deleted=1'] : ['s.is_deleted=0'])
    : ['1=1'];
$params = [];

if ($filter_status === 'active')   { $where[] = 's.is_active=1'; }
if ($filter_status === 'inactive') { $where[] = 's.is_active=0'; }
if ($filter_name !== '') {
    $where[]  = '(s.company_name LIKE ? OR s.contact_name LIKE ?)';
    $params[] = '%' . $filter_name . '%';
    $params[] = '%' . $filter_name . '%';
}

$where_str = implode(' AND ', $where);
$suppliers = db_rows("SELECT * FROM suppliers s WHERE $where_str ORDER BY s.is_active DESC, s.company_name ASC", $params);

$day_labels = ['Pzt','Sal','Çar','Per','Cum','Cmt','Paz'];
?>

<!-- Sekmeler -->
<ul class="nav nav-tabs mb-4">
    <li class="nav-item">
        <a class="nav-link <?= $tab === 'active' ? 'active' : '' ?>" href="suppliers.php?tab=active">
            <i class="bi bi-truck me-1"></i>Tedarikçiler
        </a>
    </li>
    <li class="nav-item">
        <a class="nav-link <?= $tab === 'deleted' ? 'active' : '' ?>" href="suppliers.php?tab=deleted">
            <i class="bi bi-archive me-1"></i>Silinenler
            <?php if ($has_deleted_col):
                $del_count = (int)db_value("SELECT COUNT(*) FROM suppliers WHERE is_deleted=1");
                if ($del_count > 0): ?>
                <span class="badge bg-danger ms-1"><?= $del_count ?></span>
            <?php endif; endif; ?>
        </a>
    </li>
</ul>

<div class="d-flex justify-content-between align-items-center mb-3">
    <h5 class="mb-0 text-gold">
        <i class="bi bi-truck me-2"></i>
        <?= $tab === 'deleted' ? 'Silinen Tedarikçiler' : 'Tedarikçiler' ?>
    </h5>
    <?php if ($tab !== 'deleted'): ?>
    <button class="btn btn-gold btn-sm" onclick="openAddModal()">
        <i class="bi bi-plus-lg me-1"></i>Yeni Tedarikçi
    </button>
    <?php endif; ?>
</div>

<!-- Filtreler -->
<div class="card mb-3">
    <div class="card-body py-2">
        <form method="GET" class="row g-2 align-items-end">
            <div class="col-12 col-md-4">
                <label class="form-label">Arama</label>
                <input type="text" name="name" class="form-control form-control-sm" value="<?= e($filter_name) ?>" placeholder="Firma / İlgili kişi...">
            </div>
            <div class="col-12 col-md-3">
                <label class="form-label">Durum</label>
                <select name="status" class="form-select form-select-sm">
                    <option value="all" <?= $filter_status==='all'?'selected':'' ?>>Tümü</option>
                    <option value="active" <?= $filter_status==='active'?'selected':'' ?>>Aktif</option>
                    <option value="inactive" <?= $filter_status==='inactive'?'selected':'' ?>>Pasif</option>
                </select>
            </div>
            <div class="col-12 col-md-2 d-flex gap-2">
                <button type="submit" class="btn btn-sm btn-gold flex-fill">
                    <i class="bi bi-search me-1"></i>Filtrele
                </button>
                <a href="suppliers.php" class="btn btn-sm btn-outline-secondary">
                    <i class="bi bi-x-lg"></i>
                </a>
            </div>
        </form>
    </div>
</div>

<div class="card">
    <div class="card-body p-0">
        <div class="table-responsive">
            <table class="table table-hover mb-0">
                <thead>
                    <tr>
                        <th>Firma</th>
                        <th>İlgili Kişi</th>
                        <th>Telefon</th>
                        <th>Sipariş Günleri</th>
                        <th>Teslimat Günleri</th>
                        <th>Durum</th>
                        <th>İşlemler</th>
                    </tr>
                </thead>
                <tbody>
                <?php foreach ($suppliers as $s): ?>
                    <tr>
                        <td>
                            <div class="fw-600"><?= e($s['company_name']) ?></div>
                            <?php if ($s['products_note']): ?>
                                <div class="text-muted fs-12"><?= e(mb_strimwidth($s['products_note'],0,40,'...')) ?></div>
                            <?php endif; ?>
                        </td>
                        <td><?= e($s['contact_name'] ?? '—') ?></td>
                        <td>
                            <?= e($s['phone'] ?? '—') ?>
                            <?php if ($s['whatsapp']): ?>
                                <a href="#" onclick="openWhatsApp('<?= e($s['whatsapp']) ?>','')" class="ms-1" title="WhatsApp">
                                    <i class="bi bi-whatsapp text-success fs-12"></i>
                                </a>
                            <?php endif; ?>
                        </td>
                        <td class="fs-12"><?= e($s['order_days'] ?? '—') ?></td>
                        <td class="fs-12"><?= e($s['delivery_days'] ?? '—') ?></td>
                        <td>
                            <?= $s['is_active']
                                ? '<span class="badge bg-success">Aktif</span>'
                                : '<span class="badge bg-secondary">Pasif</span>' ?>
                        </td>
                        <td>
                            <div class="d-flex gap-1">
                                <button class="btn btn-sm btn-outline-secondary btn-action" onclick="openEditModal(<?= htmlspecialchars(json_encode($s)) ?>)" title="Düzenle">
                                    <i class="bi bi-pencil"></i>
                                </button>
                                <?php if ($s['whatsapp']): ?>
                                <button class="btn btn-sm btn-outline-success btn-action" onclick="openWhatsApp('<?= e($s['whatsapp']) ?>','')" title="WhatsApp">
                                    <i class="bi bi-whatsapp"></i>
                                </button>
                                <?php endif; ?>
                                <?php if (is_admin()): ?>
                                <?php if ($tab !== 'deleted'): ?>
                                <button class="btn btn-sm btn-outline-danger btn-action" onclick="deleteSupplier(<?= $s['id'] ?>)" title="Sil">
                                    <i class="bi bi-trash"></i>
                                </button>
                                <?php else: ?>
                                <button class="btn btn-sm btn-outline-success btn-action" onclick="restoreSupplier(<?= $s['id'] ?>)" title="Geri Yükle">
                                    <i class="bi bi-arrow-counterclockwise"></i>
                                </button>
                                <button class="btn btn-sm btn-outline-danger btn-action" onclick="permanentDeleteSupplier(<?= $s['id'] ?>, '<?= e(addslashes($s['company_name'])) ?>')" title="Kalıcı Sil">
                                    <i class="bi bi-trash-fill"></i>
                                </button>
                                <?php endif; ?>
                                <?php endif; ?>
                            </div>
                        </td>
                    </tr>
                <?php endforeach; ?>
                <?php if (empty($suppliers)): ?>
                    <tr><td colspan="7" class="text-center text-muted py-4">Tedarikçi bulunamadı.</td></tr>
                <?php endif; ?>
                </tbody>
            </table>
        </div>
    </div>
</div>

<!-- Tedarikçi Modalı -->
<div class="modal fade" id="supplierModal" tabindex="-1">
    <div class="modal-dialog modal-lg">
        <div class="modal-content">
            <div class="modal-header">
                <h6 class="modal-title" id="supplierModalTitle">Yeni Tedarikçi</h6>
                <button type="button" class="btn-close" data-bs-dismiss="modal"></button>
            </div>
            <div class="modal-body">
                <input type="hidden" id="supplierId">
                <div class="row g-3">
                    <div class="col-md-6">
                        <label class="form-label">Firma Adı *</label>
                        <input type="text" id="suppCompany" class="form-control" placeholder="Firma adı">
                    </div>
                    <div class="col-md-6">
                        <label class="form-label">İlgili Kişi</label>
                        <input type="text" id="suppContact" class="form-control" placeholder="Ad Soyad">
                    </div>
                    <div class="col-md-4">
                        <label class="form-label">Telefon</label>
                        <input type="text" id="suppPhone" class="form-control" placeholder="0xxx xxx xx xx" data-phone>
                    </div>
                    <div class="col-md-4">
                        <label class="form-label">WhatsApp</label>
                        <input type="text" id="suppWA" class="form-control" placeholder="0xxx xxx xx xx" data-phone>
                    </div>
                    <div class="col-md-4">
                        <label class="form-label">E-posta</label>
                        <input type="email" id="suppEmail" class="form-control" placeholder="mail@ornek.com">
                    </div>
                    <div class="col-md-6">
                        <label class="form-label">Vergi No</label>
                        <input type="text" id="suppTaxNo" class="form-control" placeholder="1234567890">
                    </div>
                    <div class="col-md-6">
                        <label class="form-label">Vergi Dairesi</label>
                        <input type="text" id="suppTaxOffice" class="form-control" placeholder="Kadıköy VD">
                    </div>
                    <div class="col-md-12">
                        <label class="form-label">Adres</label>
                        <input type="text" id="suppAddress" class="form-control" placeholder="Mahalle, Cadde, No, İlçe/İl">
                    </div>
                    <div class="col-md-6">
                        <label class="form-label">Sipariş Günleri</label>
                        <div class="days-selector" id="suppOrderDaysBox">
                            <?php foreach (['Pazartesi','Salı','Çarşamba','Perşembe','Cuma','Cumartesi','Pazar'] as $gun): ?>
                            <label class="day-badge">
                                <input type="checkbox" class="order-day-cb" value="<?= $gun ?>">
                                <span><?= $gun ?></span>
                            </label>
                            <?php endforeach; ?>
                        </div>
                        <input type="hidden" id="suppOrderDays">
                    </div>
                    <div class="col-md-6">
                        <label class="form-label">Teslimat Günleri</label>
                        <div class="days-selector" id="suppDeliveryDaysBox">
                            <?php foreach (['Pazartesi','Salı','Çarşamba','Perşembe','Cuma','Cumartesi','Pazar'] as $gun): ?>
                            <label class="day-badge">
                                <input type="checkbox" class="delivery-day-cb" value="<?= $gun ?>">
                                <span><?= $gun ?></span>
                            </label>
                            <?php endforeach; ?>
                        </div>
                        <input type="hidden" id="suppDeliveryDays">
                    </div>
                    <div class="col-12">
                        <label class="form-label">Ürünler Notu</label>
                        <textarea id="suppProductsNote" class="form-control" rows="2" placeholder="Tedarik ettiği ürünler..."></textarea>
                    </div>
                    <div class="col-12">
                        <label class="form-label">Genel Not</label>
                        <textarea id="suppGeneralNote" class="form-control" rows="2"></textarea>
                    </div>
                    <div class="col-12">
                        <div class="form-check form-switch">
                            <input class="form-check-input" type="checkbox" id="suppActive" checked>
                            <label class="form-check-label" for="suppActive">Aktif</label>
                        </div>
                    </div>
                </div>
            </div>
            <div class="modal-footer">
                <button type="button" class="btn btn-secondary btn-sm" data-bs-dismiss="modal">İptal</button>
                <button type="button" class="btn btn-gold btn-sm" id="supplierSaveBtn">Kaydet</button>
            </div>
        </div>
    </div>
</div>

<script>
function openAddModal() {
    document.getElementById('supplierId').value      = '';
    document.getElementById('suppCompany').value     = '';
    document.getElementById('suppContact').value     = '';
    document.getElementById('suppPhone').value       = '';
    document.getElementById('suppWA').value          = '';
    document.getElementById('suppEmail').value       = '';
    document.getElementById('suppTaxNo').value       = '';
    document.getElementById('suppTaxOffice').value   = '';
    document.getElementById('suppAddress').value     = '';
    document.querySelectorAll('.order-day-cb, .delivery-day-cb').forEach(cb => cb.checked = false);
    document.getElementById('suppProductsNote').value= '';
    document.getElementById('suppGeneralNote').value = '';
    document.getElementById('suppActive').checked    = true;
    document.getElementById('supplierModalTitle').textContent = 'Yeni Tedarikçi';
    openModal('supplierModal');
}

function openEditModal(s) {
    document.getElementById('supplierId').value       = s.id;
    document.getElementById('suppCompany').value      = s.company_name;
    document.getElementById('suppContact').value      = s.contact_name || '';
    document.getElementById('suppPhone').value        = s.phone || '';
    document.getElementById('suppWA').value           = s.whatsapp || '';
    document.getElementById('suppEmail').value        = s.email || '';
    document.getElementById('suppTaxNo').value        = s.tax_no || '';
    document.getElementById('suppTaxOffice').value    = s.tax_office || '';
    document.getElementById('suppAddress').value      = s.address || '';
    // Günleri checkbox'lardan set et
    const orderDayVals = (s.order_days || '').split(',').map(d => d.trim()).filter(Boolean);
    const deliveryDayVals = (s.delivery_days || '').split(',').map(d => d.trim()).filter(Boolean);
    document.querySelectorAll('.order-day-cb').forEach(cb => { cb.checked = orderDayVals.includes(cb.value); });
    document.querySelectorAll('.delivery-day-cb').forEach(cb => { cb.checked = deliveryDayVals.includes(cb.value); });
    document.getElementById('suppProductsNote').value = s.products_note || '';
    document.getElementById('suppGeneralNote').value  = s.general_note || '';
    document.getElementById('suppActive').checked     = !!s.is_active;
    document.getElementById('supplierModalTitle').textContent = 'Tedarikçi Düzenle';
    openModal('supplierModal');
}

document.getElementById('supplierSaveBtn').addEventListener('click', async () => {
    const id = document.getElementById('supplierId').value;
    const company = document.getElementById('suppCompany').value.trim();
    if (!company) { showToast('Firma adı zorunludur.', 'error'); return; }

    const res = await apiPost('/api/admin/suppliers.php', {
        action: id ? 'update' : 'create',
        id,
        company_name:    company,
        contact_name:    document.getElementById('suppContact').value,
        phone:           document.getElementById('suppPhone').value,
        whatsapp:        document.getElementById('suppWA').value,
        email:           document.getElementById('suppEmail').value,
        tax_no:          document.getElementById('suppTaxNo').value.trim(),
        tax_office:      document.getElementById('suppTaxOffice').value.trim(),
        address:         document.getElementById('suppAddress').value.trim(),
        order_days:      [...document.querySelectorAll('.order-day-cb:checked')].map(c=>c.value).join(', '),
        delivery_days:   [...document.querySelectorAll('.delivery-day-cb:checked')].map(c=>c.value).join(', '),
        products_note:   document.getElementById('suppProductsNote').value,
        general_note:    document.getElementById('suppGeneralNote').value,
        is_active:       document.getElementById('suppActive').checked ? 1 : 0,
    });
    if (res.success) {
        closeModal('supplierModal');
        showToast(res.message, 'success');
        setTimeout(() => location.reload(), 800);
    } else {
        showToast(res.message, 'error');
    }
});

async function deleteSupplier(id) {
    confirmAction('Bu tedarikçiyi silmek istiyor musunuz? Silinen tedarikçiler arşive taşınır.', async function() {
        const res = await apiPost('/api/admin/suppliers.php', { action: 'delete', id: id });
        if (res.success) {
            showToast(res.message, 'success');
            setTimeout(function() { location.reload(); }, 800);
        } else {
            showToast(res.message, 'error');
        }
    });
}

async function restoreSupplier(id) {
    confirmAction('Bu tedarikçiyi geri yüklemek istiyor musunuz?', async function() {
        const res = await apiPost('/api/admin/suppliers.php', { action: 'restore', id: id });
        if (res.success) {
            showToast(res.message, 'success');
            setTimeout(function() { location.reload(); }, 800);
        } else {
            showToast(res.message, 'error');
        }
    });
}

async function permanentDeleteSupplier(id, name) {
    confirmAction('"' + name + '" kalıcı olarak silinsin mi? Bu tedarikçiye ait TÜM siparişler de silinecek. Bu işlem GERİ ALINAMAZ!', async function() {
        const res = await apiPost('/api/admin/suppliers.php', { action: 'permanent_delete', id: id });
        if (res.success) {
            showToast(res.message, 'success');
            setTimeout(function() { location.reload(); }, 800);
        } else {
            showToast(res.message, 'error');
        }
    });
}
</script>

<?php require_once __DIR__ . '/../includes/admin_layout_end.php'; ?>