process.env.LOGGING_NO_DEFAULT = "true";
import { LoggingBase, ConsoleAdapter } from "@hibas123/logging";

import * as yargs from "yargs";

const options = yargs
   .option("verbose", {
      alias: "v",
      type: "boolean",
      description: "Print debug informations",
      required: false,
   })
   .option("config", {
      alias: "c",
      type: "string",
      default: "/etc/issc.ini",
      description: "Config file location",
   })
   .option("to", {
      alias: "t",
      description: "The receiver of the email",
      type: "string",
      required: true,
   })
   .option("subject", {
      alias: "s",
      description: "Subject of the mail",
      type: "string",
      required: false,
   }).argv;

const Logging = new LoggingBase({
   console: false,
});

if (options.verbose) {
   Logging.addAdapter(new ConsoleAdapter(true));
}

Logging.log("Starting INSANLY SIMPLE SMTP CLIENT");

const EXAMPLE_CONFIG = `
[smtp]
server=
from=
username=
password=
port=
`;

import * as nm from "nodemailer";

import * as ini from "ini";
import { readFileSync, fstat, existsSync } from "fs";

Logging.log("Loading configuration");

if (!existsSync(options.config)) {
   console.log(
      "Add configuration to /etc/issc.ini or set your location by using --config <path>. \n\n Example config: \n\n" +
         EXAMPLE_CONFIG
   );
   process.exit(1);
}

const config = ini.parse(readFileSync(options.config, "utf-8"));
Logging.log("Creating Transport");
const transport = nm.createTransport({
   host: config.smtp.server,
   port: Number(config.smtp.port || 587),
   secure: false,
   auth: {
      user: config.smtp.username,
      pass: config.smtp.password,
      method: "PLAIN",
   },
   logger: {
      fatal: Logging.errorMessage,
      trace: Logging.log,
      level: () => undefined,
      debug: Logging.debug,
      error: Logging.errorMessage,
      info: Logging.log,
      warn: Logging.warn,
   },
});
Logging.log("Verifying transport");

import getstdin = require("get-stdin");

transport
   .verify()
   .then(async () => {
      Logging.log("Reading STDIN");
      const text = await getstdin();
      Logging.log("Sending mail");
      const res = await transport.sendMail({
         from: config.smtp.from,
         to: options.to,
         subject: options.subject,
         text,
      });

      console.log("Message sent");
   })
   .catch((err) => {
      Logging.error(err);
      console.log("Some error occured!", err.message);
   })
   .finally(() => {
      transport.close();
      process.exit();
   });