<?php
header('Content-Type: application/json');
header('Access-Control-Allow-Origin: *');

require_once __DIR__ . '/../config/database.php';

$database = new Database();
$db = $database->getConnection();

$response = array('success' => false, 'message' => '', 'data' => null);

try {
    // Get item counts by type
    $query = "SELECT it.name as item_type, COUNT(i.id) as count
              FROM item_types it
              LEFT JOIN ftth_items i ON it.id = i.item_type_id
              GROUP BY it.id, it.name
              ORDER BY it.id";
    
    $stmt = $db->prepare($query);
    $stmt->execute();
    
    $statistics = array();
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
        $key = strtolower(str_replace(' ', '_', $row['item_type']));
        $statistics[$key] = (int)$row['count'];
    }
    
    // Get total routes
    $query = "SELECT COUNT(*) as total_routes FROM cable_routes";
    $stmt = $db->prepare($query);
    $stmt->execute();
    $result = $stmt->fetch(PDO::FETCH_ASSOC);
    $statistics['total_routes'] = (int)$result['total_routes'];
    
    // Get route status counts
    $query = "SELECT status, COUNT(*) as count FROM cable_routes GROUP BY status";
    $stmt = $db->prepare($query);
    $stmt->execute();
    while ($row = $stmt->fetch(PDO::FETCH_ASSOC)) {
        $statistics['routes_' . $row['status']] = (int)$row['count'];
    }
    
    // Calculate total distance
    $query = "SELECT SUM(distance) as total_distance FROM cable_routes WHERE distance IS NOT NULL";
    $stmt = $db->prepare($query);
    $stmt->execute();
    $result = $stmt->fetch(PDO::FETCH_ASSOC);
    $statistics['total_distance_km'] = round((float)$result['total_distance'] / 1000, 2);
    
    $response['success'] = true;
    $response['data'] = $statistics;
    
} catch (Exception $e) {
    $response['message'] = 'Database error: ' . $e->getMessage();
}

echo json_encode($response);
?>