Use `/api/boot` to bootstrap the client.

The client now takes an initial snapshot from the response to `/api/boot`, then picks up the event stream at the immediately-successive event to the moment the snapshot was taken.

This commit removes the following unused endpoints:

* `/api/channels` (GET)
* `/api/channels/:channel/messages` (GET)

The information therein is now part of the boot response. We can always add 'em back, but I wanted to clear the deck for designing something more capable, for dealing with client needs.

1 files changed, 19 insertions, 6 deletions

diff --git a/hi-ui/src/routes/+page.svelte b/hi-ui/src/routes/+page.svelte
index 66b4f8d..1a61b3e 100644
--- a/hi-ui/src/routes/+page.svelte
+++ b/hi-ui/src/routes/+page.svelte
@@ -2,7 +2,7 @@
 	import { onMount } from 'svelte';
 
 	import { boot, subscribeToEvents } from '../apiServer';
-	import { currentUser } from '../store';
+	import { currentUser, channelsList, messages } from '../store';
 
     import ActiveChannel from '../lib/ActiveChannel.svelte';
     import ChannelList from '../lib/ChannelList.svelte';
@@ -18,16 +18,29 @@
         user = value;
     });
 
+    function onBooted(boot) {
+        currentUser.update(() => ({
+            id: boot.login.id,
+            username: boot.login.name,
+        }));
+        let channels = boot.channels.map((channel) => ({
+            id: channel.id,
+            name: channel.name,
+        }));
+        channelsList.update((value) => value.setChannels(channels));
+        let bootMessages = boot.channels.map((channel) => [channel.id, channel.messages]);
+        for (let [channel, channelMessages] of bootMessages) {
+            messages.update((value) => value.addMessages(channel, channelMessages));
+        }
+    }
+
 	onMount(async () => {
         try {
             let response = await boot();
             switch (response.status) {
                 case 200:
-                    currentUser.update(() => ({
-                        username: response.data.login.name,
-                        id: response.data.login.id,
-                    }));
-                    subscribeToEvents();
+                    onBooted(response.data);
+                    subscribeToEvents(response.data.resume_point);
                     break;
                 case 401:
                     currentUser.update(() => null);