Configurable chat history length

The previous default of 5 messages is utterly lame and didn't provide enough context to anything, and was also a downgrade from the old server as that had 10 messages by default (of which we're now going back to with this change).

config.example.toml

@@ -27,6 +27,7 @@ bancmd = "iptables -A INPUT -s $IP -j REJECT"
 moderatorEnabled = true
 usernameblacklist = []
 maxChatLength = 100
+maxChatHistoryLength = 10
 # Temporarily mute a user if they send more than x messages in n seconds
 automute = {enabled = true, seconds = 5, messages = 5}
 # How long a temporary mute lasts, in seconds

src/IConfig.ts

@@ -21,6 +21,7 @@ export default interface IConfig {
         moderatorEnabled : boolean;
         usernameblacklist : string[];
         maxChatLength : number;
+        maxChatHistoryLength : number;
         automute : {
             enabled: boolean;
             seconds: number;

src/WSServer.ts

@@ -47,13 +47,13 @@ export default class WSServer {
     private ModPerms : number;  
     private VM : VM;
     constructor(config : IConfig, vm : VM) {
-        this.ChatHistory = new CircularBuffer<{user:string,msg:string}>(Array, 5);
+        this.Config = config;
+        this.ChatHistory = new CircularBuffer<{user:string,msg:string}>(Array, this.Config.collabvm.maxChatHistoryLength);
         this.TurnQueue = new Queue<User>();
         this.TurnTime = 0;
         this.TurnIntervalRunning = false;
         this.clients = [];
         this.ips = [];
-        this.Config = config;
         this.voteInProgress = false;
         this.voteTime = 0;
         this.voteCooldown = 0;