283 lines
12 KiB
PHP
283 lines
12 KiB
PHP
<?php
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session_start();
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if (!isset($_SESSION['user_id'])) {
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header('Location: login.php');
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exit;
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}
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// Role check for inventory panel
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$userRole = $_SESSION['user_role'] ?? '';
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$allowedRoles = ['Administrador', 'admin', 'Control Logistico'];
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if (!in_array($userRole, $allowedRoles)) {
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header('Location: dashboard.php?error=access_denied');
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exit();
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}
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require_once 'layout_header.php';
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require_once 'db/config.php';
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try {
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$pdo = db();
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// 1. Datos para las tarjetas de resumen
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$total_productos = $pdo->query("SELECT COUNT(*) FROM products")->fetchColumn();
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$total_sedes = $pdo->query("SELECT COUNT(*) FROM sedes")->fetchColumn();
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$total_stock = $pdo->query("SELECT SUM(quantity) FROM stock_sedes")->fetchColumn();
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// 2. Datos para la tabla de inventario
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$sedes_stmt = $pdo->query("SELECT id, nombre FROM sedes ORDER BY nombre");
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$sedes = $sedes_stmt->fetchAll(PDO::FETCH_ASSOC);
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$products_stmt = $pdo->query("SELECT id, nombre FROM products ORDER BY nombre");
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$products = $products_stmt->fetchAll(PDO::FETCH_ASSOC);
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$stock_stmt = $pdo->query("SELECT product_id, sede_id, quantity FROM stock_sedes");
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$stock_data = $stock_stmt->fetchAll(PDO::FETCH_ASSOC);
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$inventario = [];
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foreach ($products as $product) {
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$inventario[$product['id']] = [
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'nombre' => $product['nombre'],
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'total' => 0,
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'sedes' => array_fill_keys(array_column($sedes, 'id'), 0)
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];
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}
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foreach ($stock_data as $stock_item) {
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if (isset($inventario[$stock_item['product_id']])) {
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$inventario[$stock_item['product_id']]['sedes'][$stock_item['sede_id']] = $stock_item['quantity'];
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$inventario[$stock_item['product_id']]['total'] += $stock_item['quantity'];
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}
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}
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// 3. Datos para gráficos
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$stock_por_sede_stmt = $pdo->query("
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SELECT s.nombre, SUM(ss.quantity) as total_stock
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FROM sedes s JOIN stock_sedes ss ON s.id = ss.sede_id
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GROUP BY s.nombre HAVING total_stock > 0 ORDER BY s.nombre
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");
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$stock_por_sede = $stock_por_sede_stmt->fetchAll(PDO::FETCH_ASSOC);
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$sede_chart_labels_array = array_column($stock_por_sede, 'nombre');
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$sede_chart_data_array = array_column($stock_por_sede, 'total_stock');
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$colores_sedes = [];
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$colores_default = ['#FF6384', '#FFCE56', '#4BC0C0', '#9966FF', '#FF9F40'];
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$color_map = [
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'Almacen Principal' => '#28a745', // Verde
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'ALIDRV' => '#FFCE56', // Amarillo
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'LIMA' => '#36A2EB' // Azul
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];
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$default_color_idx = 0;
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foreach ($sede_chart_labels_array as $label) {
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$color_asignado = null;
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foreach ($color_map as $sede => $color) {
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if (strcasecmp($label, $sede) == 0) {
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$color_asignado = $color;
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break;
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}
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}
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if ($color_asignado) {
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$colores_sedes[] = $color_asignado;
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} else {
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$colores_sedes[] = $colores_default[$default_color_idx % count($colores_default)];
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$default_color_idx++;
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}
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}
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$sede_chart_labels = json_encode($sede_chart_labels_array);
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$sede_chart_data = json_encode($sede_chart_data_array);
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$sede_chart_colors = json_encode($colores_sedes);
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$stock_por_producto_stmt = $pdo->query("
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SELECT p.nombre, SUM(ss.quantity) as total_stock
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FROM products p JOIN stock_sedes ss ON p.id = ss.product_id
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GROUP BY p.nombre HAVING total_stock > 0 ORDER BY total_stock DESC LIMIT 15
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");
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$stock_por_producto = $stock_por_producto_stmt->fetchAll(PDO::FETCH_ASSOC);
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$producto_chart_labels = json_encode(array_column($stock_por_producto, 'nombre'));
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$producto_chart_data = json_encode(array_column($stock_por_producto, 'total_stock'));
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// 4. Datos para el historial de movimientos (últimos 50)
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$movements_stmt = $pdo->query("
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SELECT sm.movement_date, p.nombre as product_name, s.nombre as sede_name, sm.quantity, sm.type
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FROM stock_movements sm
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JOIN products p ON sm.product_id = p.id
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JOIN sedes s ON sm.sede_id = s.id
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ORDER BY sm.created_at DESC
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LIMIT 50
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");
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$movements = $movements_stmt->fetchAll(PDO::FETCH_ASSOC);
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} catch (PDOException $e) {
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echo "<div class='alert alert-danger'>Error al conectar o consultar la base de datos: " . $e->getMessage() . "</div>";
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require_once 'layout_footer.php';
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die();
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}
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?>
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<div class="container-fluid mt-4">
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<div class="d-flex justify-content-between align-items-center mb-4">
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<h1>Dashboard de Inventario</h1>
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<div>
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<a href="registro_entrada.php" class="btn btn-success"><i class="fa fa-plus"></i> Registrar Entrada</a>
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<a href="registro_salida.php" class="btn btn-danger"><i class="fa fa-minus"></i> Registrar Salida</a>
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</div>
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</div>
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<!-- Tarjetas de Resumen -->
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<div class="row mb-4">
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<div class="col-md-4">
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<div class="card text-white bg-primary mb-3">
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<div class="card-body">
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<h5 class="card-title">Total de Productos</h5>
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<p class="card-text fs-4"><?php echo $total_productos; ?></p>
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</div>
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</div>
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</div>
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<div class="col-md-4">
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<div class="card text-white bg-success mb-3">
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<div class="card-body">
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<h5 class="card-title">Sedes Activas</h5>
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<p class="card-text fs-4"><?php echo $total_sedes; ?></p>
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</div>
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</div>
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</div>
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<div class="col-md-4">
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<div class="card text-white bg-info mb-3">
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<div class="card-body">
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<h5 class="card-title">Unidades Totales en Stock</h5>
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<p class="card-text fs-4"><?php echo $total_stock ?: 0; ?></p>
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</div>
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</div>
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</div>
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</div>
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<!-- Sección de Gráficos -->
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<div class="row mb-4">
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<div class="col-lg-6 mb-4">
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<div class="card h-100">
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<div class="card-header"><h5 class="m-0">Distribución por Sede</h5></div>
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<div class="card-body d-flex justify-content-center align-items-center">
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<canvas id="distribucionSedeChart" style="max-height: 300px;"></canvas>
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</div>
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</div>
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</div>
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<div class="col-lg-6 mb-4">
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<div class="card h-100">
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<div class="card-header"><h5 class="m-0">Top 15 Productos con Más Stock</h5></div>
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<div class="card-body"><canvas id="stockProductoChart"></canvas></div>
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</div>
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</div>
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</div>
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<!-- Tabla de Inventario Detallado -->
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<div class="card mb-4">
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<div class="card-header"><h5 class="m-0">Inventario por Sede</h5></div>
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<div class="card-body">
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<div class="table-responsive">
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<table class="table table-bordered table-hover">
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<thead class="thead-light">
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<tr>
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<th>Producto</th>
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<th class="text-center">Stock Total</th>
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<?php foreach ($sedes as $sede): ?>
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<th class="text-center"><?php echo htmlspecialchars($sede['nombre']); ?></th>
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<?php endforeach; ?>
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</tr>
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</thead>
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<tbody>
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<?php if (empty($inventario)): ?>
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<tr><td colspan="<?php echo count($sedes) + 2; ?>" class="text-center">No hay productos.</td></tr>
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<?php else: ?>
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<?php foreach ($inventario as $datos_producto): ?>
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<tr>
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<td><?php echo htmlspecialchars($datos_producto['nombre']); ?></td>
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<td class="text-center fw-bold"><?php echo $datos_producto['total']; ?></td>
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<?php foreach ($datos_producto['sedes'] as $cantidad): ?>
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<td class="text-center"><?php echo $cantidad; ?></td>
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<?php endforeach; ?>
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</tr>
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<?php endforeach; ?>
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<?php endif; ?>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<!-- Historial de Movimientos -->
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<div class="card">
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<div class="card-header"><h5 class="m-0">Historial de Movimientos Recientes</h5></div>
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<div class="card-body">
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<div class="table-responsive">
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<table class="table table-striped table-hover">
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<thead class="thead-light">
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<tr>
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<th>Fecha</th>
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<th>Producto</th>
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<th>Sede</th>
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<th class="text-center">Cantidad</th>
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<th class="text-center">Tipo</th>
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</tr>
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</thead>
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<tbody>
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<?php if (empty($movements)): ?>
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<tr><td colspan="5" class="text-center">No hay movimientos registrados.</td></tr>
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<?php else: ?>
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<?php foreach ($movements as $mov): ?>
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<tr>
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<td><?php echo htmlspecialchars(date("d/m/Y", strtotime($mov['movement_date']))); ?></td>
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<td><?php echo htmlspecialchars($mov['product_name']); ?></td>
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<td><?php echo htmlspecialchars($mov['sede_name']); ?></td>
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<td class="text-center"><?php echo htmlspecialchars($mov['quantity']); ?></td>
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<td class="text-center">
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<?php if ($mov['type'] == 'entrada'): ?>
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<span class="badge bg-success">Entrada</span>
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<?php else: ?>
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<span class="badge bg-danger">Salida</span>
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<?php endif; ?>
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</td>
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</tr>
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<?php endforeach; ?>
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<?php endif; ?>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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</div>
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<script src="https://cdn.jsdelivr.net/npm/chart.js?v=<?php echo time(); ?>"></script>
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<script>
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document.addEventListener('DOMContentLoaded', function () {
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const sedeLabels = <?php echo $sede_chart_labels; ?>;
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const sedeData = <?php echo $sede_chart_data; ?>;
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const sedeColors = <?php echo $sede_chart_colors; ?>;
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if (sedeLabels.length > 0) {
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const ctxSede = document.getElementById('distribucionSedeChart').getContext('2d');
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new Chart(ctxSede, {
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type: 'pie',
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data: { labels: sedeLabels, datasets: [{ label: 'Stock', data: sedeData, backgroundColor: sedeColors }] },
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options: { responsive: true, maintainAspectRatio: false, plugins: { legend: { position: 'bottom' } } }
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});
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}
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const productoLabels = <?php echo $producto_chart_labels; ?>;
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const productoData = <?php echo $producto_chart_data; ?>;
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if (productoLabels.length > 0) {
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const ctxProducto = document.getElementById('stockProductoChart').getContext('2d');
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new Chart(ctxProducto, {
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type: 'bar',
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data: { labels: productoLabels, datasets: [{ label: 'Cantidad en Stock', data: productoData, backgroundColor: 'rgba(54, 162, 235, 0.6)', borderColor: 'rgba(54, 162, 235, 1)', borderWidth: 1 }] },
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options: {
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indexAxis: 'y', responsive: true, plugins: { legend: { display: false }, title: { display: true, text: 'Stock por Producto' } },
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scales: { x: { beginAtZero: true } }
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}
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});
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}
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});
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</script>
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<?php require_once 'layout_footer.php'; ?>
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