ananse/dist/cli/simulator.mjs

Ananse is a lightweight NodeJs framework with batteries included for building efficient, scalable and maintainable USSD applications.

#!/usr/bin/env node

// src/cli/simulator.ts
import { randomUUID } from "crypto";
import * as readline from "readline";
var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});
var CACHE = { wigal: {}, emergent_technology: {} };
var Simulator = class {
  constructor() {
    this.args = {};
  }
  // TODO: Implement emergent ussd
  get provider() {
    return this.args.provider;
  }
  get baseUrl() {
    return `${this.args.url || "http://localhost:3000"}`;
  }
  // get generateRequestUrl(): string {
  //   if (this.provider == "wigal") {
  //     return `${this.baseUrl}?network=wigal_tigo_gh&sessionid=12345&mode=start&msisdn=${this.args.phone}&userdata&username=stevkky&trafficid=adc62161-05b2-4af5-98b1-a66c67f85c9d&other=first_menu`;
  //   }
  //   throw new Error(`${this.provider} is not implemented`);
  // }
  async init() {
    this.parseArguments();
  }
  parseArguments() {
    var _a;
    this.args["phone"] = process.argv.slice(2)[0];
    this.args["provider"] = process.argv.slice(2)[1];
    this.args["url"] = process.argv.slice(2)[2];
    if (this.args.phone == null || ((_a = this.args.phone) == null ? void 0 : _a.trim()) == "") {
      console.log("Please provide a phone number!");
      process.exit(1);
    }
    if (!/[0-9]{10,}/.test(this.args.phone)) {
      console.log("Invalid phone number!");
      process.exit(1);
    }
    process.argv.slice(2).forEach((arg) => {
      const [key, value] = arg.split("=");
      this.args[key.replace(/(-)+/, "")] = value;
    });
  }
  async start(url, requestBody) {
    try {
      if (this.provider == "wigal" /* wigal */) {
        const resp = await fetch(url || this.reply());
        const data = await resp.text();
        let wigal = this.parseResponse(data);
        console.log("");
        console.log(this.displayText(wigal.userdata));
        console.log("");
        if (wigal.isEndSession)
          process.exit(0);
        rl.question("Response: ", async (input) => {
          return await this.start(this.reply(wigal, input));
        });
      } else if (this.provider == "emergent_technology" /* emergent_technology */) {
        const { url: url2, body } = this.reply(requestBody);
        const resp = await fetch(url2, {
          method: "POST",
          body: JSON.stringify(body),
          headers: { "Content-Type": "application/json" }
        });
        const json = await resp.json();
        console.log("");
        console.log(this.displayText(json.Message));
        console.log("");
        if (json.Type == "Release")
          process.exit(0);
        rl.question("Response: ", async (input) => {
          const { url: url3, body: body2 } = this.reply(json, input);
          return await this.start(url3, body2);
        });
      }
    } catch (e) {
      console.log("Simulator error: ", e);
      this.log(e);
      process.exit(1);
    }
  }
  reply(data, input) {
    var _a;
    if (this.provider === "wigal" /* wigal */) {
      input = input == null ? void 0 : input.replace(/#/g, "%23");
      data != null ? data : data = {};
      data.userdata = input != null ? input : data.userdata;
      const url = `${this.baseUrl}?network=${data.network || "wigal_mtn_gh"}&sessionid=${data.sessionid || randomUUID()}&mode=${data.mode || "start"}&msisdn=${data.msisdn || this.args.phone}&userdata=${input}&username=${data.username || "test_user"}&trafficid=${randomUUID()}&other=${data.other || ""}`;
      this.log(url);
      return url;
    }
    if (this.provider == "emergent_technology" /* emergent_technology */) {
      data != null ? data : data = {
        Mobile: this.args.phone,
        Message: "*714#"
      };
      data.Message = input != null ? input : data.Message;
      data.SessionId = CACHE[this.provider].sessionId || randomUUID();
      (_a = data.Type) != null ? _a : data.Type = "Initiation";
      data.Mobile = this.args.phone;
      data.Operator = "Vodafone";
      data.ServiceCode = "714";
      CACHE[this.provider].sessionId = data.SessionId;
      return { url: this.baseUrl, body: data };
    }
    throw new Error(`Reply is not implemented for ${this.provider}`);
  }
  parseResponse(data) {
    this.log(data);
    if (this.provider == "wigal") {
      let resp = data.split("|");
      return {
        network: resp[0],
        mode: resp[1],
        msisdn: resp[2],
        sessionid: resp[3],
        userdata: resp[4].replace(/\^/g, "\n"),
        username: resp[5],
        trafficid: resp[6],
        other: resp[7],
        isEndSession: resp[1] == "end"
      };
    }
    throw new Error(`Response parsing is not implemented for ${this.provider}`);
  }
  displayText(text) {
    text != null ? text : text = "Unable to parse text from response";
    return text == null ? void 0 : text.replace(/\^/g, "\n");
  }
  log(data) {
    if (this.args.debug === true || this.args.debug === "true") {
      console.log("");
      console.log(data);
      console.log("");
    }
  }
};
var simulator = new Simulator();
simulator.init().then(() => simulator.start());
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