NAME
    routing - RSX type-safe URL generation and route patterns

SYNOPSIS
    Type-safe URL generation in PHP and JavaScript with automatic route discovery

DESCRIPTION
    The RSX framework provides type-safe URL generation that ensures routes
    are valid at build time and prevents broken links. Unlike Laravel's
    route() helper which uses string names, RSX uses controller class names
    and actions, providing IDE autocompletion and refactoring safety.

    Key differences from Laravel:
    - Laravel: route('user.profile', $user) using named routes
    - RSX: Rsx::Route('User_Controller::profile', ['id' => $user->id])

    Benefits:
    - No route name management required
    - Automatic route discovery from controller attributes
    - Same syntax works in both PHP and JavaScript
    - IDE autocompletion for controller names
    - Refactoring-safe (renaming controllers updates routes)

BASIC USAGE
    Signature:
        Rsx::Route($action, $params = null)
        Rsx.Route(action, params = null)

        Where:
        - $action: Controller class, SPA action, or "Class::method"
          Defaults to 'index' method if no :: present
        - $params: Integer sets 'id', array/object provides named params

    PHP Syntax:
        use App\RSpade\Core\Rsx;

        // Generate URLs (defaults to 'index' method)
        $url = Rsx::Route('Demo_Index_Controller');           // /demo
        $url = Rsx::Route('Demo_Index_Controller::show');     // /demo/show
        $url = Rsx::Route('Demo_Index_Controller::show', 123);        // /demo/123
        $url = Rsx::Route('Demo_Index_Controller::show', ['id' => 123]); // /demo/123

        // Use in redirects
        return redirect(Rsx::Route('Demo_Index_Controller'));

    JavaScript Syntax:
        // Generate URLs (defaults to 'index' method)
        const url = Rsx.Route('Demo_Index_Controller');           // /demo
        const url = Rsx.Route('Demo_Index_Controller::show');     // /demo/show
        const url = Rsx.Route('Demo_Index_Controller::show', 123);        // /demo/123
        const url = Rsx.Route('Demo_Index_Controller::show', {id: 123}); // /demo/123

        // Use in navigation
        window.location.href = Rsx.Route('Demo_Index_Controller');

ROUTE PATTERNS
    Route Definition:
        Routes are defined using #[Route] attributes on controller methods:

        #[Auth('Permission::authenticated()')]
        #[Route('/users/:division/:id')]
        public static function show_user(Request $request, array $params = [])
        {
            // $params['division'] and $params['id'] contain URL values
            $division = $params['division'];
            $user_id = $params['id'];
        }

    Parameter Syntax:
        - :param - Required parameter in URL path
        - Routes without parameters use controller/action mapping
        - URL generation validates required parameters are provided

    URL Parameter Handling:
        - Required parameters (in pattern) must be provided or exception thrown
        - Extra parameters become query string (?key=value)
        - All values automatically URL encoded
        - Supports complex parameter patterns

ROUTE ACCESS CONTROL
    All routes MUST have #[Auth] attribute for access control:

        #[Auth('Permission::anybody()')]
        #[Route('/')]
        public static function index(Request $request, array $params = [])
        {
            return rsx_view('Landing');
        }

    Access Control Placement:
        1. On route method - Applies to specific route
        2. On pre_dispatch() - Applies to all routes in controller
        3. Both - pre_dispatch checked first, then route

    Common Patterns:
        // Public route
        #[Auth('Permission::anybody()')]

        // Authenticated only
        #[Auth('Permission::authenticated()',
            message: 'Please log in',
            redirect: '/login')]

        // Custom permission with argument
        #[Auth('Permission::has_role("admin")')]

        // Multiple requirements (all must pass)
        #[Auth('Permission::authenticated()')]
        #[Auth('Permission::has_permission("edit")')]

    See controller(3) for complete #[Auth] documentation.

ROUTE DISCOVERY
    Automatic Discovery:
        The manifest system automatically discovers routes by scanning
        for #[Route] attributes on controller static methods.

    Discovery Process:
        1. Manifest scanner finds Route attributes during build
        2. Routes extracted and cached in manifest
        3. Bundle compilation injects routes into JavaScript
        4. Both PHP and JS use same routing logic

    Controller Mapping:
        - Demo_Index_Controller maps to /demo route by default
        - User_Profile_Controller maps to /user/profile
        - Action methods create sub-routes: show -> /demo/show

BUNDLE INTEGRATION
    Automatic Route Inclusion:
        Routes are automatically included in JavaScript bundles when
        controllers are in the bundle's include paths.

    Bundle Configuration:
        class My_Bundle extends Rsx_Bundle_Abstract
        {
            public static function define(): array
            {
                return [
                    'include' => ['rsx/app/myapp'],
                    'include_routes' => ['rsx/app/admin'], // Additional route scanning
                ];
            }
        }

    Route Availability:
        - Routes available in JavaScript when bundle renders
        - Same URL generation logic in both PHP and JavaScript
        - No manual route registration required

ADVANCED PATTERNS
    Complex Parameter Examples:
        // Multiple parameters
        #[Route('/api/v1/users/:company/:division/:id')]
        $url = Rsx::Route('Api_V1_Users_Controller::show',
            ['company' => 'acme', 'division' => 'sales', 'id' => 123]);
        // Result: /api/v1/users/acme/sales/123

        // Query parameters for extra values
        $url = Rsx::Route('Demo_Controller::show',
            ['id' => 123, 'format' => 'json', 'include' => 'profile']);
        // Result: /demo/123?format=json&include=profile

        // Complex objects as parameters
        $url = Rsx::Route('Demo_Controller',
            ['filter' => ['status' => 'active', 'type' => 'user']]);
        // Result: /demo?filter[status]=active&filter[type]=user

    Route Groups and Prefixes:
        Routes inherit prefixes from controller structure:
        - Backend_User_Controller -> /backend/user
        - Api_V1_User_Controller -> /api/v1/user
        - Admin_Reports_Controller -> /admin/reports

    Custom Route Patterns:
        #[Route('/custom/path/:id')]           // Custom path
        #[Route('/api/:version/users/:id')]    // Multiple segments
        #[Route('/files/:path*')]              // Wildcard parameters

JAVASCRIPT BUNDLE ROUTES
    Route Availability in JavaScript:
        Routes are injected into JavaScript bundles as part of the Rsx
        framework initialization. No manual configuration required.

    Bundle Route Extraction:
        // Routes automatically extracted from included controllers
        class Frontend_Bundle extends Rsx_Bundle_Abstract
        {
            public static function define(): array
            {
                return [
                    'include' => [
                        'rsx/app/frontend',     // Controllers here get routes extracted
                        'rsx/app/shared',       // Additional controller directories
                    ],
                ];
            }
        }

    Runtime Route Access:
        // Routes available after bundle loads
        if (typeof Rsx !== 'undefined') {
            const url = Rsx.Route('Demo_Index_Controller');
        }

ERROR HANDLING
    Missing Route Errors:
        - PHP: RouteNotFoundException when controller/action not found
        - JavaScript: Error thrown when route not available in bundle
        - Development: Clear error messages with suggestions

    Parameter Validation:
        - Required parameters must be provided
        - Invalid parameter types rejected
        - URL encoding applied automatically

    Bundle Configuration Errors:
        - Routes not available if controllers not in bundle includes
        - Clear error messages when routes missing from JavaScript

DEBUGGING ROUTES
    View All Routes:
        php artisan rsx:routes                 # List all discovered routes

    Test Route Generation:
        php artisan rsx:debug /demo --eval="Rsx.Route('Demo_Index_Controller')"

    Route Information:
        php artisan rsx:manifest:show          # View route cache in manifest

COMMON PATTERNS
    Controller Navigation:
        // Redirect to another controller
        public static function handle_form(Request $request, array $params = [])
        {
            // Process form...
            return redirect(Rsx::Route('Dashboard_Index_Controller'));
        }

    AJAX URL Generation:
        // Generate URLs for AJAX calls
        const apiUrl = Rsx.Route('Api_User_Controller::update', {id: userId});
        fetch(apiUrl, {method: 'POST', body: formData});

    Form Action URLs:
        // Generate form action URLs
        <form action="<?= Rsx::Route('User_Profile_Controller::update') ?>" method="POST">

    Link Generation:
        // Generate navigation links
        <a href="<?= Rsx::Route('Dashboard_Index_Controller') ?>">Dashboard</a>

TROUBLESHOOTING
    Route Not Found:
        - Verify controller exists and has #[Route] attribute
        - Check controller is in manifest-scanned directories
        - Ensure manifest rebuilt after adding new routes

    JavaScript Route Unavailable:
        - Verify controller included in bundle configuration
        - Check bundle compiles without errors
        - Ensure bundle renders in HTML output

    Parameter Errors:
        - Required parameters must match route pattern exactly
        - Parameter names are case-sensitive
        - Use array syntax for multiple parameters

    URL Generation Issues:
        - Check for typos in controller names
        - Verify action method exists on controller
        - Ensure route pattern matches expected parameters

SEE ALSO
    controller - Controller patterns and route attributes
    bundle_api - Bundle system and JavaScript integration
    manifest_api - Route discovery and caching system