1 files changed, 54 insertions, 0 deletions
diff --git a/api/src/util/VoiceState.ts b/api/src/util/VoiceState.ts
new file mode 100644
index 00000000..07022ec9
--- /dev/null
+++ b/api/src/util/VoiceState.ts
@@ -0,0 +1,54 @@
+import { Channel, ChannelType, DiscordApiErrors, emitEvent, getPermission, VoiceState, VoiceStateUpdateEvent } from "@fosscord/util";
+import { VoiceStateUpdateSchema } from "../schema";
+
+
+//TODO need more testing when community guild and voice stage channel are working
+export async function updateVoiceState(vsuSchema: VoiceStateUpdateSchema, guildId: string, userId: string, targetUserId?: string) {
+	const perms = await getPermission(userId, guildId, vsuSchema.channel_id);
+
+	/*
+	From https://discord.com/developers/docs/resources/guild#modify-current-user-voice-state
+	You must have the MUTE_MEMBERS permission to unsuppress yourself. You can always suppress yourself.
+	You must have the REQUEST_TO_SPEAK permission to request to speak. You can always clear your own request to speak.
+	 */
+	if (targetUserId !== undefined || (vsuSchema.suppress !== undefined && !vsuSchema.suppress)) {
+		perms.hasThrow("MUTE_MEMBERS");
+	}
+	if (vsuSchema.request_to_speak_timestamp !== undefined && vsuSchema.request_to_speak_timestamp !== "") {
+		perms.hasThrow("REQUEST_TO_SPEAK")
+	}
+
+	if (!targetUserId) {
+		targetUserId = userId;
+	} else {
+		if (vsuSchema.suppress !== undefined && vsuSchema.suppress)
+			vsuSchema.request_to_speak_timestamp = "" //Need to check if empty string is the right value
+	}
+
+	//TODO assumed that empty string means clean, need to test if it's right
+	let voiceState
+	try {
+		voiceState = await VoiceState.findOneOrFail({
+			guild_id: guildId,
+			channel_id: vsuSchema.channel_id,
+			user_id: targetUserId
+		});
+	} catch (error) {
+		throw DiscordApiErrors.UNKNOWN_VOICE_STATE;
+	}
+
+	voiceState.assign(vsuSchema);
+	const channel = await Channel.findOneOrFail({ guild_id: guildId, id: vsuSchema.channel_id })
+	if (channel.type !== ChannelType.GUILD_STAGE_VOICE) {
+		throw DiscordApiErrors.CANNOT_EXECUTE_ON_THIS_CHANNEL_TYPE;
+	}
+
+	await Promise.all([
+		voiceState.save(),
+		emitEvent({
+			event: "VOICE_STATE_UPDATE",
+			data: voiceState,
+			guild_id: guildId
+		} as VoiceStateUpdateEvent)]);
+	return;
+}
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