From f2f3549ce87f82d73aaa586490ba577766765350 Mon Sep 17 00:00:00 2001
From: Michael Hall <michaelhall@michaels-mbp.home>
Date: Sun, 25 Jun 2023 00:04:09 -0400
Subject: [PATCH] initial loading screen

---
 components/LoadingScreen/LoadingScreen.tsx | 93 ++++++++++++++++++++++
 ndk/NDKProvider.tsx                        |  3 +-
 2 files changed, 95 insertions(+), 1 deletion(-)
 create mode 100644 components/LoadingScreen/LoadingScreen.tsx

diff --git a/components/LoadingScreen/LoadingScreen.tsx b/components/LoadingScreen/LoadingScreen.tsx
new file mode 100644
index 00000000..161a6135
--- /dev/null
+++ b/components/LoadingScreen/LoadingScreen.tsx
@@ -0,0 +1,93 @@
+import { Box, Center, Group, Stack, Text } from "@mantine/core";
+import { motion } from "framer-motion";
+import { useEffect, useState } from "react";
+
+export default function LoadingScreen() {
+  const iconSize = 180;
+  const barWidth = 8;
+  const maxBarHeight = 95;
+  const bars = [0.25, 0.2, 0.65, 1, 0.45];
+  const borderWidth = 4;
+
+  return (
+    <Center
+      sx={(theme) => ({
+        position: "absolute",
+        left: 0,
+        right: 0,
+        top: 0,
+        bottom: 0,
+        margin: "auto",
+        maxWidth: 600,
+      })}
+    >
+      <Stack>
+        <Center
+          w={iconSize}
+          h={iconSize}
+          bg="purple.5"
+          sx={{
+            borderRadius: "50%",
+            background:
+              "linear-gradient(143deg, rgb(108, 61, 177) 0%, rgb(148, 96, 205) 100%)",
+          }}
+        >
+          <Center
+            w={iconSize - borderWidth}
+            h={iconSize - borderWidth}
+            sx={{
+              borderRadius: "50%",
+              background:
+                "linear-gradient(143deg, rgb(125, 100, 163) 0%, rgba(103, 47, 183, 1) 100%)",
+            }}
+          >
+            <Group spacing="sm">
+              {bars.map((height, index) => (
+                <Box key={index} w={barWidth}>
+                  <Delay delay={index * 200}>
+                    <motion.div
+                      initial={{ height: 0 }}
+                      animate={{
+                        height: [
+                          height * maxBarHeight,
+                          height * maxBarHeight * 0.5,
+                          height * maxBarHeight,
+                        ],
+                        opacity: [0, 1, 0.5, 1, 0],
+                      }}
+                      transition={{
+                        repeat: Infinity,
+                        duration: 2,
+                      }}
+                    >
+                      <Box
+                        w="100%"
+                        h="100%"
+                        bg="white"
+                        sx={{ borderRadius: barWidth / 2 }}
+                      />
+                    </motion.div>
+                  </Delay>
+                </Box>
+              ))}
+            </Group>
+          </Center>
+        </Center>
+        <Text m="auto" c="white" fz={40} fw="bold">
+          Stemstr
+        </Text>
+      </Stack>
+    </Center>
+  );
+}
+
+const Delay = ({ children, delay }: any) => {
+  const [done, setDone] = useState(false);
+
+  useEffect(() => {
+    const showTimer = setTimeout(() => setDone(true), delay);
+    return () => clearTimeout(showTimer);
+  }, []);
+
+  return done ? <>{children}</> : null;
+};
diff --git a/ndk/NDKProvider.tsx b/ndk/NDKProvider.tsx
index 7f73519d..b435db25 100644
--- a/ndk/NDKProvider.tsx
+++ b/ndk/NDKProvider.tsx
@@ -15,6 +15,7 @@ import { useDispatch, useSelector } from "react-redux";
 import { isAuthState, selectAuthState, setAuthState } from "store/Auth";
 import { getCachedAuth } from "cache/cache";
 import inMemoryCacheAdapter from "./inMemoryCacheAdapter";
+import LoadingScreen from "components/LoadingScreen/LoadingScreen";
 
 interface NDKContext {
   ndk?: NDK;
@@ -101,7 +102,7 @@ const NDKProvider = ({
   // Return the provider with the NDK instance
   return (
     <NDKContext.Provider value={{ ndk, stemstrRelaySet, canPublishEvents }}>
-      {ndk ? children : "Loading..."}
+      {ndk ? children : <LoadingScreen />}
     </NDKContext.Provider>
   );
 };