import { connect } from "smpp";
import fs from "fs";

const optionsFile = "smpp_tester_options.json";

const exampleSession = {
	url: "smpp://172.17.77.203:4445",
	connection_count: 1,
	system_id: "snt",
	password: "snt",
	source_addr: "44455",
	destination_addr: "test123",
	short_message: "SNT BENCHMARK!",
	message_count: 100,
};

if (!fs.existsSync(optionsFile)) {
	fs.writeFileSync(optionsFile, JSON.stringify([exampleSession], null, 4));
	process.exit(1);
}
const options = fs.readFileSync(optionsFile, "utf8") ?? "[]";
const sessions = JSON.parse(options);
const smppSessions = [];

for (const session of sessions) {
	for (let i = 0; i < session.connection_count; i++) {
		const smppSession = connect(
			{
				url: session.url,
				auto_enquire_link_period: 10000,
				debug: true,
			},
			function () {
				smppSession.bind_transceiver({
					system_id: session.system_id,
					password: session.password,
				});
			}
		);
		smppSessions.push({ properties: session, session: smppSession });
	}
}

setTimeout(function () {
	for (const session of smppSessions) {
		for (let i = 0; i < session.properties.message_count; i++) {
			session.session.submit_sm(
				{
					source_addr: session.properties.source_addr,
					destination_addr: session.properties.destination_addr,
					short_message: session.properties.short_message,
				},
				function (pdu) {
					if (pdu.command_status === 0) {
						console.log(pdu.message_id);
					}
				}
			);
		}
	}
}, 1000);