4 files changed, 181 insertions, 0 deletions
diff --git a/ui/lib/state/remote/channels.svelte.js b/ui/lib/state/remote/channels.svelte.js
new file mode 100644
index 0000000..64edb09
--- /dev/null
+++ b/ui/lib/state/remote/channels.svelte.js
@@ -0,0 +1,22 @@
+import { SvelteMap } from 'svelte/reactivity';
+
+export class Channels {
+  all = $state();
+
+  static boot(channels) {
+    const all = new SvelteMap(channels.map((channel) => [channel.id, channel]));
+    return new Channels({ all });
+  }
+
+  constructor({ all }) {
+    this.all = all;
+  }
+
+  add({ id, name }) {
+    this.all.set(id, { id, name });
+  }
+
+  remove(id) {
+    this.all.delete(id);
+  }
+}
diff --git a/ui/lib/state/remote/logins.svelte.js b/ui/lib/state/remote/logins.svelte.js
new file mode 100644
index 0000000..d19068d
--- /dev/null
+++ b/ui/lib/state/remote/logins.svelte.js
@@ -0,0 +1,18 @@
+import { SvelteMap } from 'svelte/reactivity';
+
+export class Logins {
+  all = $state();
+
+  static boot(logins) {
+    const all = new SvelteMap(logins.map((login) => [login.id, login]));
+    return new Logins({ all });
+  }
+
+  constructor({ all }) {
+    this.all = all;
+  }
+
+  add({ id, name }) {
+    this.all.set(id, { id, name });
+  }
+}
diff --git a/ui/lib/state/remote/messages.svelte.js b/ui/lib/state/remote/messages.svelte.js
new file mode 100644
index 0000000..576a74e
--- /dev/null
+++ b/ui/lib/state/remote/messages.svelte.js
@@ -0,0 +1,52 @@
+import { DateTime } from 'luxon';
+import { render } from '$lib/markdown.js';
+
+class Message {
+  static boot({ id, at, channel, sender, body }) {
+    return new Message({
+      id,
+      at: DateTime.fromISO(at),
+      channel,
+      sender,
+      body,
+      renderedBody: render(body)
+    });
+  }
+
+  constructor({ id, at, channel, sender, body, renderedBody }) {
+    this.id = id;
+    this.at = at;
+    this.channel = channel;
+    this.sender = sender;
+    this.body = body;
+    this.renderedBody = renderedBody;
+  }
+
+  resolve(get) {
+    const { sender, ...rest } = this;
+    return new Message({ sender: get.sender(sender), ...rest });
+  }
+}
+
+export class Messages {
+  all = $state([]);
+
+  static boot(messages) {
+    const all = messages.map(Message.boot);
+    return new Messages({ all });
+  }
+
+  constructor({ all }) {
+    this.all = all;
+  }
+
+  add({ id, at, channel, sender, body }) {
+    const message = Message.boot({ id, at, channel, sender, body });
+    this.all.push(message);
+  }
+
+  remove(id) {
+    const index = this.all.findIndex((message) => message.id === id);
+    this.all.splice(index, 1);
+  }
+}
diff --git a/ui/lib/state/remote/state.svelte.js b/ui/lib/state/remote/state.svelte.js
new file mode 100644
index 0000000..c4daf17
--- /dev/null
+++ b/ui/lib/state/remote/state.svelte.js
@@ -0,0 +1,89 @@
+import { Logins } from './logins.svelte.js';
+import { Channels } from './channels.svelte.js';
+import { Messages } from './messages.svelte.js';
+
+export class State {
+  currentUser = $state();
+  logins = $state();
+  channels = $state();
+  messages = $state();
+
+  static boot({ currentUser, logins, channels, messages, resumePoint }) {
+    return new State({
+      currentUser,
+      logins: Logins.boot(logins),
+      channels: Channels.boot(channels),
+      messages: Messages.boot(messages),
+      resumePoint
+    });
+  }
+
+  constructor({ currentUser, logins, channels, messages, resumePoint }) {
+    this.currentUser = currentUser;
+    this.logins = logins;
+    this.channels = channels;
+    this.messages = messages;
+    this.resumePoint = resumePoint;
+  }
+
+  onEvent(event) {
+    switch (event.type) {
+      case 'channel':
+        return this.onChannelEvent(event);
+      case 'login':
+        return this.onLoginEvent(event);
+      case 'message':
+        return this.onMessageEvent(event);
+    }
+  }
+
+  onChannelEvent(event) {
+    switch (event.event) {
+      case 'created':
+        return this.onChannelCreated(event);
+      case 'deleted':
+        return this.onChannelDeleted(event);
+    }
+  }
+
+  onChannelCreated(event) {
+    const { id, name } = event;
+    this.channels.add({ id, name });
+  }
+
+  onChannelDeleted(event) {
+    const { id } = event;
+    this.channels.remove(id);
+  }
+
+  onLoginEvent(event) {
+    switch (event.event) {
+      case 'created':
+        return this.onLoginCreated(event);
+    }
+  }
+
+  onLoginCreated(event) {
+    const { id, name } = event;
+    this.logins.add({ id, name });
+  }
+
+  onMessageEvent(event) {
+    switch (event.event) {
+      case 'sent':
+        return this.onMessageSent(event);
+      case 'deleted':
+        return this.onMessageDeleted(event);
+    }
+  }
+
+  onMessageSent(event) {
+    const { id, at, channel, sender, body } = event;
+    this.messages.add({ id, at, channel, sender, body });
+  }
+
+  onMessageDeleted(event) {
+    const { id } = event;
+    this.messages.remove(id);
+  }
+}