From 08e5062241f728291828228e01f64ebf9d38b92a Mon Sep 17 00:00:00 2001
From: marzavec <admin@marzavec.com>
Date: Fri, 5 Jan 2024 23:32:14 -0800
Subject: [PATCH] added setmotd

---
 commands/channels/setmotd.js   | 137 +++++++++++++++++++++++++++++++++
 commands/utility/_Constants.js |  15 ++++
 2 files changed, 152 insertions(+)
 create mode 100644 commands/channels/setmotd.js

diff --git a/commands/channels/setmotd.js b/commands/channels/setmotd.js
new file mode 100644
index 0000000..606ec52
--- /dev/null
+++ b/commands/channels/setmotd.js
@@ -0,0 +1,137 @@
+/**
+* @author Marzavec ( https://github.com/marzavec )
+* @summary Change motd
+* @version 1.0.0
+* @description Update the channel motd to something new
+* @module setmotd
+*/
+
+import {
+  isChannelModerator,
+} from '../utility/_UAC.js';
+import {
+  getChannelSettings,
+  updateChannelSettings,
+} from '../utility/_Channels.js';
+import {
+  MaxMOTDLength,
+} from '../utility/_Constants.js';
+
+/**
+  * Executes when invoked by a remote client
+  * @param {Object} env - Environment object with references to core, server, socket & payload
+  * @public
+  * @return {void}
+  */
+export async function run({
+  core, server, socket, payload,
+}) {
+  if (server.police.frisk(socket, 6)) {
+    return server.reply({
+      cmd: 'warn', // @todo Add numeric error code as `id`
+      text: 'Issuing commands too quickly. Wait a moment before trying again.',
+      channel: socket.channel, // @todo Multichannel
+    }, socket);
+  }
+
+  // increase rate limit chance and ignore if not channel mod or better
+  if (!isChannelModerator(socket.level)) {
+    return server.police.frisk(socket, 10);
+  }
+
+  if (typeof payload.motd !== 'string' || payload.motd.length >= MaxMOTDLength) {
+    return server.reply({
+      cmd: 'warn', // @todo Add numeric error code as `id`
+      text: `Failed to set motd: Invalid motd, max length: ${MaxMOTDLength}`,
+      channel: socket.channel, // @todo Multichannel
+    }, socket);
+  }
+
+  const channelSettings = getChannelSettings(core.appConfig.data, socket.channel);
+
+  channelSettings.motd = payload.motd;
+
+  updateChannelSettings(core.appConfig.data, socket.channel, channelSettings);
+
+  server.broadcast({
+    cmd: 'info', // @todo Add numeric error code as `id`
+    text: `MOTD changed by [${socket.trip}]${socket.nick}, new motd:`,
+    channel: socket.channel, // @todo Multichannel
+  }, { channel: socket.channel });
+
+  server.broadcast({
+    cmd: 'info', // @todo Add numeric error code as `id`
+    text: channelSettings.motd,
+    channel: socket.channel, // @todo Multichannel
+  }, { channel: socket.channel });
+
+  return true;
+}
+
+/**
+  * Automatically executes once after server is ready to register this modules hooks
+  * @param {Object} server - Reference to server environment object
+  * @public
+  * @return {void}
+  */
+export function initHooks(server) {
+  server.registerHook('in', 'chat', this.chatCheck.bind(this), 29);
+}
+
+/**
+  * Executes every time an incoming chat command is invoked
+  * @param {Object} env - Environment object with references to core, server, socket & payload
+  * @public
+  * @return {(Object|boolean|string)} Object = same/altered payload,
+  * false = suppress action,
+  * string = error
+  */
+export function chatCheck({
+  core, server, socket, payload,
+}) {
+  if (typeof payload.text !== 'string') {
+    return false;
+  }
+
+  if (payload.text.startsWith('/setmotd')) {
+    this.run({
+      core,
+      server,
+      socket,
+      payload: {
+        cmd: 'setmotd',
+        motd: payload.text.substring(8).trim(),
+      },
+    });
+
+    return false;
+  }
+
+  return payload;
+}
+
+/**
+  * The following payload properties are required to invoke this module:
+  * "motd"
+  * @public
+  * @typedef {Array} setmotd/requiredData
+  */
+export const requiredData = ['motd'];
+
+/**
+  * Module meta information
+  * @public
+  * @typedef {Object} setmotd/info
+  * @property {string} name - Module command name
+  * @property {string} category - Module category name
+  * @property {string} description - Information about module
+  * @property {string} usage - Information about module usage
+  */
+export const info = {
+  name: 'setmotd',
+  category: 'channels',
+  description: 'Update the channel motd to something new',
+  usage: `
+  API: { cmd: 'setmotd', motd: '[new motd]' }
+  Text: /setmotd <new motd>`,
+};
diff --git a/commands/utility/_Constants.js b/commands/utility/_Constants.js
index ed7ae94..c4c935d 100644
--- a/commands/utility/_Constants.js
+++ b/commands/utility/_Constants.js
@@ -66,6 +66,21 @@ export const DefaultChannelSettings = {
   tripLevels: {},
 };
 
+/**
+  * An array of strings that may be used if the channel motd is empty
+  * @typedef {object} SystemMOTDs
+  */
+export const SystemMOTDs = [
+  'Protip: Using any hex color code, you can change your name color- for example: /color #FFFFFF`',
+  'Protip: You can easily change your name with a command: /nick bob`',
+];
+
+/**
+  * Maximum length of a channels MOTD string
+  * @typedef {object} MaxMOTDLength
+  */
+export const MaxMOTDLength = 250;
+
 /**
   * Maximum number of specialized trip levels, per channel
   * @typedef {number} MaxChannelTrips