prepare("SELECT SUM(total_amount) FROM orders WHERE DATE(created_at) = ? AND status != 'cancelled'");
$stmt->execute([$today]);
$revenueToday = $stmt->fetchColumn() ?: 0;
// Total Orders Today
$stmt = $pdo->prepare("SELECT COUNT(*) FROM orders WHERE DATE(created_at) = ? AND status != 'cancelled'");
$stmt->execute([$today]);
$ordersToday = $stmt->fetchColumn();
// Total Revenue This Month
$stmt = $pdo->prepare("SELECT SUM(total_amount) FROM orders WHERE DATE_FORMAT(created_at, '%Y-%m') = ? AND status != 'cancelled'");
$stmt->execute([$thisMonth]);
$revenueThisMonth = $stmt->fetchColumn() ?: 0;
// Total Expenses This Month
$stmt = $pdo->prepare("SELECT SUM(amount) FROM expenses WHERE DATE_FORMAT(expense_date, '%Y-%m') = ?");
$stmt->execute([$thisMonth]);
$expensesThisMonth = $stmt->fetchColumn() ?: 0;
// Estimated Net Profit This Month
$netProfitThisMonth = $revenueThisMonth - $expensesThisMonth;
// Active Outlets
$outletsCount = $pdo->query("SELECT COUNT(*) FROM outlets")->fetchColumn();
// Total Products
$productsCount = $pdo->query("SELECT COUNT(*) FROM products")->fetchColumn();
// 1. Sales Trend (Last 12 Months)
$salesTrendQuery = "
SELECT DATE_FORMAT(created_at, '%b %Y') as month_label, SUM(total_amount) as total, DATE_FORMAT(created_at, '%Y-%m') as sort_key
FROM orders
WHERE status != 'cancelled'
AND created_at >= DATE_SUB(NOW(), INTERVAL 12 MONTH)
GROUP BY month_label, sort_key
ORDER BY sort_key ASC";
$salesTrend = $pdo->query($salesTrendQuery)->fetchAll();
// 2. Sales by Category (Pie Chart)
$salesByCategoryQuery = "
SELECT c.name as category_name, SUM(oi.quantity * oi.unit_price) as total_sales
FROM order_items oi
JOIN products p ON oi.product_id = p.id
JOIN categories c ON p.category_id = c.id
JOIN orders o ON oi.order_id = o.id
WHERE o.status != 'cancelled'
GROUP BY c.name
ORDER BY total_sales DESC";
$salesByCategory = $pdo->query($salesByCategoryQuery)->fetchAll();
// 3. Sales by Order Type (Pie Chart)
$salesByTypeQuery = "
SELECT order_type, SUM(total_amount) as total
FROM orders
WHERE status != 'cancelled'
GROUP BY order_type";
$salesByType = $pdo->query($salesByTypeQuery)->fetchAll();
// 4. Top 5 Items Sold
$topItemsQuery = "
SELECT p.name, SUM(oi.quantity) as total_qty
FROM order_items oi
JOIN products p ON oi.product_id = p.id
JOIN orders o ON oi.order_id = o.id
WHERE o.status != 'cancelled'
GROUP BY p.name
ORDER BY total_qty DESC
LIMIT 5";
$topItems = $pdo->query($topItemsQuery)->fetchAll();
// 5. Value Add: Average Order Value
$stmt = $pdo->query("SELECT AVG(total_amount) FROM orders WHERE status != 'cancelled'");
$avgOrderValue = $stmt->fetchColumn() ?: 0;
// Recent Orders
$recentOrders = $pdo->query("SELECT o.*,
(SELECT GROUP_CONCAT(p.name SEPARATOR ', ') FROM order_items oi JOIN products p ON oi.product_id = p.id WHERE oi.order_id = o.id) as items
FROM orders o ORDER BY created_at DESC LIMIT 5")->fetchAll();
}
include 'includes/header.php';
?>