1 files changed, 55 insertions, 0 deletions
diff --git a/src/lib/routes/router.ts b/src/lib/routes/router.ts
new file mode 100644
index 000000000..05e0a63de
--- /dev/null
+++ b/src/lib/routes/router.ts
@@ -0,0 +1,55 @@
+import {RouteParams, Route} from './types'
+
+export class Router {
+  routes: [string, Route][] = []
+  constructor(description: Record<string, string>) {
+    for (const [screen, pattern] of Object.entries(description)) {
+      this.routes.push([screen, createRoute(pattern)])
+    }
+  }
+
+  matchName(name: string): Route | undefined {
+    for (const [screenName, route] of this.routes) {
+      if (screenName === name) {
+        return route
+      }
+    }
+  }
+
+  matchPath(path: string): [string, RouteParams] {
+    let name = 'NotFound'
+    let params: RouteParams = {}
+    for (const [screenName, route] of this.routes) {
+      const res = route.match(path)
+      if (res) {
+        name = screenName
+        params = res.params
+        break
+      }
+    }
+    return [name, params]
+  }
+}
+
+function createRoute(pattern: string): Route {
+  let matcherReInternal = pattern.replace(
+    /:([\w]+)/g,
+    (_m, name) => `(?<${name}>[^/]+)`,
+  )
+  const matcherRe = new RegExp(`^${matcherReInternal}([?]|$)`, 'i')
+  return {
+    match(path: string) {
+      const res = matcherRe.exec(path)
+      if (res) {
+        return {params: res.groups || {}}
+      }
+      return undefined
+    },
+    build(params: Record<string, string>) {
+      return pattern.replace(
+        /:([\w]+)/g,
+        (_m, name) => params[name] || 'undefined',
+      )
+    },
+  }
+}