<?php
ini_set('display_errors', 1);

require_once '../../../../resources/base_path_include.php';

require_once $base_path_to_learning_resources  . "includes/connect.php"; // use require for mandatory files
require_once $base_path_to_learning_resources . 'lib/function.php';
require_once $base_path_to_learning_resources . 'lib/validate_api_signature.php';

//valdation file
require_once $base_path_to_learning_resources . 'lib/validate_function.php';
require_once $base_path_to_learning . 'user_management/authenticate.php';
require_once $base_path_to_learning . 'functions/common_functions.php';
//db access function
require_once $base_path_to_learning_resources . 'includes/specific_db_config.php';

//aws image store
require_once $base_path_to_learning_resources . 'lib/bucket_functions/bucket_functions.php';
require_once $base_path_to_learning . "vendor/autoload.php";

require_once $base_path_to_learning_resources . 'includes/aws_bucket_config.php';

require_once $base_path_to_learning  . 'admin_api/modules/library_management/library_function.php';

use Aws\S3\S3Client;
use Aws\S3\Exception\S3Exception;

$postdata = json_decode(file_get_contents("php://input"), true);

checkIfNoPhpContentsReceive();
// print_r($postdata);
if (
   
    !isset($postdata['api_signature']) or !checkIfIssetAndNotEmpty($postdata['api_signature']) or
    !isset($postdata['function_type']) or !checkIfIssetAndNotEmpty($postdata['function_type'])  or !isset($postdata['jwt_token']) or  !isset($postdata['jwt_token'])
) {
    errorreturn("All * fields are required.");
}
validateApiSignature($postdata['api_signature']);

$jwttoken = $postdata['jwt_token'];
$jwt_validate = authenticate_jwt($jwttoken);
$userid = $jwt_validate->data->id;
$workspace_id = $jwt_validate->data->workspace_id;
$username = $jwt_validate->data->username;
$role = $jwt_validate->data->role;
$branch_id = $jwt_validate->data->branch_id;
$institution_id = $jwt_validate->data->institution_id;

$specific_db_name = validateUserAccess($conn_rjllearning, $userid, $role, $workspace_id,["principal"], null);
if (!$specific_db_name) {
    errorreturn('Access denied.');
} else {
    $conn_rjllearning_specific = dynamicDbConnection($specific_db_name);
}

require_once $base_path_to_learning . 'user_management/user_versioning.php';

$version = isset($_POST['version']) ? $_POST['version'] : (isset($postdata['version']) ? $postdata['version'] : null);
$updated_time = isset($_POST['updated_time']) ? $_POST['updated_time'] : (isset($postdata['updated_time']) ? $postdata['updated_time'] : null);

$response = user_data_refresh($conn_rjllearning, $conn_rjllearning_specific, $version, $updated_time, $userid, $institution_id);

function getroute($conn_rjllearning_specific, $institution_id, $search_string , $branch_id  ) {
    // Step 1: Count total rows
    $sql = "SELECT COUNT(*) as total_rows FROM routes WHERE institution_id = ?";
    $stmt = $conn_rjllearning_specific->prepare($sql);
    $stmt->execute([$institution_id]);
    $result_total = $stmt->fetch();
    $total_rows = $result_total['total_rows'];

    // Step 2: Build SQL query for fetching route information
    $sql_session = "SELECT * FROM routes WHERE institution_id = ?";
    $array_params = [$institution_id];

    // Step 3: Handle branch_id if it's not null or 'all'
     if ($branch_id == 'all') {
            $sql_session .= "";
        } else if ($branch_id !=  null  && $branch_id != 'all') {
            $sql_session .= " AND branch_id = ? ";
            $array_params[] = $branch_id;
        }

    // Step 4: Handle search string if provided
    if ($search_string !== null) {
        $sql_session .= " AND route_name LIKE ?";
        $array_params[] = '%' . $search_string . '%';
    }



    // Step 6: Execute the SQL query to fetch bus stop data
    $stmt = $conn_rjllearning_specific->prepare($sql_session);
    $stmt->execute($array_params);
    $session_rows = $stmt->fetchAll();

    // Step 7: Prepare the return data
    $array_return = [];
    foreach ($session_rows as $rows) {

        // Append each bus stop's information to the result array
        $array_return[] = [
            'route_id' => $rows['id'],
            'route_name' => $rows['route_name'],

        ];
    }



    // Step 9: Return the results
    return [
        'total_rows' => $total_rows,
        'routes_info' => $array_return,

    ];
}

if ($postdata['function_type'] == "fetch_route_name") {
   
    $check_academic_confirmation = CheckAcademicSession($conn_rjllearning_specific, $institution_id);
    if ($check_academic_confirmation != true) {
        errorreturn("Access denied. Academic session not active.");
    }
    

    if (isset($postdata['search_string']) and !empty($postdata['search_string'])) {
        $search_string = trim($postdata['search_string']);
    } else {
        $search_string = null;
    }



        $success['data'] = getroute($conn_rjllearning_specific, $institution_id, $search_string, $branch_id);
        successreturn($success);

}
