Ask the user who they are when opening a group for the first time (#7)

src/lib/hooks.ts

@@ -0,0 +1,42 @@
+import { useEffect, useState } from 'react'
+
+export function useMediaQuery(query: string): boolean {
+  const getMatches = (query: string): boolean => {
+    // Prevents SSR issues
+    if (typeof window !== 'undefined') {
+      return window.matchMedia(query).matches
+    }
+    return false
+  }
+
+  const [matches, setMatches] = useState<boolean>(getMatches(query))
+
+  function handleChange() {
+    setMatches(getMatches(query))
+  }
+
+  useEffect(() => {
+    const matchMedia = window.matchMedia(query)
+
+    // Triggered at the first client-side load and if query changes
+    handleChange()
+
+    // Listen matchMedia
+    if (matchMedia.addListener) {
+      matchMedia.addListener(handleChange)
+    } else {
+      matchMedia.addEventListener('change', handleChange)
+    }
+
+    return () => {
+      if (matchMedia.removeListener) {
+        matchMedia.removeListener(handleChange)
+      } else {
+        matchMedia.removeEventListener('change', handleChange)
+      }
+    }
+    // eslint-disable-next-line react-hooks/exhaustive-deps
+  }, [query])
+
+  return matches
+}