static: add argument support to Router and add RouteMatch

passbook/static/static/src/pages/RouterOutlet.ts

@@ -24,7 +24,7 @@ export class Route {
     url: RegExp;
 
     private element?: TemplateResult;
-    private callback?: () => TemplateResult;
+    private callback?: (args: { [key: string]: string; }) => TemplateResult;
 
     constructor(url: RegExp, element?: TemplateResult) {
         this.url = url;
@@ -40,9 +40,14 @@ export class Route {
         return this;
     }
 
-    render(): TemplateResult {
+    then(render: (args: { [key: string]: string; }) => TemplateResult): Route {
+        this.callback = render;
+        return this;
+    }
+
+    render(args: { [key: string]: string; }): TemplateResult {
         if (this.callback) {
-            return this.callback();
+            return this.callback(args);
         }
         if (this.element) {
             return this.element;
@@ -51,16 +56,36 @@ export class Route {
     }
 }
 
+export const SLUG_REGEX = "[-a-zA-Z0-9_]+";
 export const ROUTES: Route[] = [
     // Prevent infinite Shell loops
-    new Route(new RegExp("^/$")).redirect("/-/overview/"),
+    new Route(new RegExp(`^/$`)).redirect("/-/overview/"),
-    new Route(new RegExp("^/applications/$"), html`<h1>test</h1>`),
+    new Route(new RegExp(`^/applications/$`), html`<h1>test</h1>`),
+    new Route(new RegExp(`^/-/applications/(?<slug>${SLUG_REGEX})/$`)).then((args) => {
+        return html`<h1>test</h1>
+
+        <span>${args.slug}</span>`;
+    }),
 ];
 
+class RouteMatch {
+    route: Route;
+    arguments?: RegExpExecArray;
+    fullUrl?: string;
+
+    constructor(route: Route) {
+        this.route = route;
+    }
+
+    render(): TemplateResult {
+        return this.route.render(this.arguments!.groups || {});
+    }
+}
+
 @customElement("pb-router-outlet")
 export class RouterOutlet extends LitElement {
     @property()
-    activeRoute?: Route;
+    current?: RouteMatch;
 
     @property()
     defaultUrl?: string;
@@ -98,28 +123,35 @@ export class RouterOutlet extends LitElement {
             window.location.hash = `#${activeUrl}`;
             return;
         }
-        let selectedRoute: Route | null = null;
+        let matchedRoute: RouteMatch | null = null;
         ROUTES.forEach((route) => {
-            if (route.url.exec(activeUrl)) {
+            console.log(`matching ${activeUrl} against ${route.url}`);
-                selectedRoute = route;
+            const match = route.url.exec(activeUrl);
+            if (match != null) {
+                matchedRoute = new RouteMatch(route);
+                matchedRoute.arguments = match;
+                matchedRoute.fullUrl = activeUrl;
                 return;
             }
         });
-        if (!selectedRoute) {
+        if (!matchedRoute) {
             console.log(
                 `passbook/router: route "${activeUrl}" not defined, defaulting to shell`
             );
-            selectedRoute = new Route(
+            const route = new Route(
                 RegExp(""),
                 html`<pb-site-shell url=${activeUrl}>
                     <div slot="body"></div>
                 </pb-site-shell>`
             );
+            matchedRoute = new RouteMatch(route);
+            matchedRoute.arguments = route.url.exec(activeUrl)!;
+            matchedRoute.fullUrl = activeUrl;
         }
-        this.activeRoute = selectedRoute;
+        this.current = matchedRoute;
     }
 
     render() {
-        return this.activeRoute?.render();
+        return this.current?.render();
     }
 }