Provide named operations for stored state.

1 files changed, 35 insertions, 0 deletions

diff --git a/hi-ui/src/store/messages.js b/hi-ui/src/store/messages.js
new file mode 100644
index 0000000..d1f19d3
--- /dev/null
+++ b/hi-ui/src/store/messages.js
@@ -0,0 +1,35 @@
+export class Messages {
+	constructor() {
+		this.channels = {};
+	}
+
+	inChannel(channel) {
+		return this.channels[channel] || [];
+	}
+
+	addMessage(message) {
+		let {
+			channel,
+			...payload
+		} = message;
+		let channel_id = channel.id;
+		this.updateChannel(channel_id, (messages) => [...messages, payload]);
+		return this;
+	}
+
+	deleteMessage(channel, message) {
+		let messages = this.messages(channel).filter((msg) => msg.message.id != message);
+		this.channels[channel] = messages;
+	}
+
+	deleteChannel(id) {
+		delete this.channels[id];
+		return this;
+	}
+
+	updateChannel(channel, callback) {
+		let messages = callback(this.inChannel(channel));
+		messages.sort((a, b) => a.at - b.at);
+		this.channels[channel] = messages;
+	}
+}