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subscribing.ts
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subscribing.ts
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/*
This file is part of botten-nappet -- a Twitch bot and streaming tool.
<https://joelpurra.com/projects/botten-nappet/>
Copyright (c) 2018 Joel Purra <https://joelpurra.com/>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
import {
assert,
} from "check-types";
import EventSubscriptionManager from "../../../event/event-subscription-manager";
import IEventEmitter from "../../../event/ievent-emitter";
import IEventSubscriptionConnection from "../../../event/ievent-subscription-connection";
import PinoLogger from "../../../util/pino-logger";
import IIncomingIrcCommand from "../command/iincoming-irc-command";
import IOutgoingIrcCommand from "../command/ioutgoing-irc-command";
export default class SubscribingIrcHandler extends EventSubscriptionManager<IIncomingIrcCommand> {
private outgoingIrcCommandEventEmitter: IEventEmitter<IOutgoingIrcCommand>;
constructor(
logger: PinoLogger,
connection: IEventSubscriptionConnection<IIncomingIrcCommand>,
outgoingIrcCommandEventEmitter: IEventEmitter<IOutgoingIrcCommand>,
) {
super(logger, connection);
assert.hasLength(arguments, 3);
assert.equal(typeof logger, "object");
assert.equal(typeof connection, "object");
assert.equal(typeof outgoingIrcCommandEventEmitter, "object");
this.logger = logger.child("SubscribingIrcHandler");
this.outgoingIrcCommandEventEmitter = outgoingIrcCommandEventEmitter;
}
protected async dataHandler(data: IIncomingIrcCommand): Promise<void> {
assert.hasLength(arguments, 1);
assert.equal(typeof data, "object");
const tags = data.tags!;
const username = tags.login;
this.logger.trace("Responding to subscriber.", username, data.message, "dataHandler");
// TODO: use a string templating system.
// TODO: configure response.
let response = null;
const msgId = tags["msg-id"];
const msgParamMonths = tags["msg-param-months"];
if (msgId === "resub") {
/* tslint:disable:max-line-length */
response = `Wow, @${username}, thanks for getting your ${msgParamMonths} rubber duckies in a row!`;
/* tslint:enable:max-line-length */
} else {
response = `Wow, @${username}, thanks for becoming my newest rubber ducky!`;
}
const command: IOutgoingIrcCommand = {
channel: data.channel,
command: "PRIVMSG",
message: `${response}`,
tags: {},
};
this.outgoingIrcCommandEventEmitter.emit(command);
}
protected async filter(data: IIncomingIrcCommand): Promise<boolean> {
assert.hasLength(arguments, 1);
assert.equal(typeof data, "object");
if (data.command !== "USERNOTICE") {
return false;
}
const tags = data.tags;
if (tags === null) {
return false;
}
if (typeof tags !== "object") {
return false;
}
const msgId = tags["msg-id"];
if (typeof msgId !== "string") {
return false;
}
if (msgId !== "sub" && msgId !== "resub") {
return false;
}
return true;
}
}