added mongoose, debug-level

bot now saves chat_member tg event to db

package-lock.json

@@ -9,6 +9,7 @@
       "version": "1.0.0",
       "license": "ISC",
       "dependencies": {
+        "debug-level": "^3.1.2",
         "input": "^1.0.1",
         "mongodb": "^6.3.0",
         "mongoose": "^8.1.1",
@@ -3046,7 +3047,6 @@
       "version": "4.3.0",
       "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-4.3.0.tgz",
       "integrity": "sha512-zbB9rCJAT1rbjiVDb2hqKFHNYLxgtk8NURxZ3IZwD3F6NtxbXZQCnnSi1Lkx+IDohdPlFp222wVALIheZJQSEg==",
-      "dev": true,
       "dependencies": {
         "color-convert": "^2.0.1"
       },
@@ -3297,12 +3297,28 @@
         "tslib": "^2.3.1"
       }
     },
+    "node_modules/asyncc": {
+      "version": "2.0.6",
+      "resolved": "https://registry.npmjs.org/asyncc/-/asyncc-2.0.6.tgz",
+      "integrity": "sha512-m3nkCP6CKuLubt2vwqoOio8NmOJPjUL6dcaNNxqc9q4H2Rq9wNs+2UsIzBegiJzUtoyh9X9iBe4GIhqu1uOvqA==",
+      "engines": {
+        "node": ">=6.0.0"
+      }
+    },
     "node_modules/asynckit": {
       "version": "0.4.0",
       "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
       "integrity": "sha512-Oei9OH4tRh0YqU3GxhX79dM/mwVgvbZJaSNaRk+bshkj0S5cfHcgYakreBjrHwatXKbz+IoIdYLxrKim2MjW0Q==",
       "dev": true
     },
+    "node_modules/atomic-sleep": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/atomic-sleep/-/atomic-sleep-1.0.0.tgz",
+      "integrity": "sha512-kNOjDqAh7px0XWNI+4QbzoiR/nTkHAWNud2uvnJquD1/x5a7EQZMJT0AczqK0Qn67oY/TTQ1LbUKajZpp3I9tQ==",
+      "engines": {
+        "node": ">=8.0.0"
+      }
+    },
     "node_modules/available-typed-arrays": {
       "version": "1.0.5",
       "resolved": "https://registry.npmjs.org/available-typed-arrays/-/available-typed-arrays-1.0.5.tgz",
@@ -3860,7 +3876,6 @@
       "version": "4.1.2",
       "resolved": "https://registry.npmjs.org/chalk/-/chalk-4.1.2.tgz",
       "integrity": "sha512-oKnbhFyRIXpUuez8iBMmyEa4nbj4IOQyuhc/wy9kY7/WVPcwIO9VA668Pu8RkO7+0G76SLROeyw9CpQ061i4mA==",
-      "dev": true,
       "dependencies": {
         "ansi-styles": "^4.1.0",
         "supports-color": "^7.1.0"
@@ -4103,7 +4118,6 @@
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-2.0.1.tgz",
       "integrity": "sha512-RRECPsj7iu/xb5oKYcsFHSppFNnsj/52OVTRKb4zP5onXwVF3zVmmToNcOfGC+CRDpfK/U584fMg38ZHCaElKQ==",
-      "dev": true,
       "dependencies": {
         "color-name": "~1.1.4"
       },
@@ -4114,8 +4128,7 @@
     "node_modules/color-name": {
       "version": "1.1.4",
       "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.4.tgz",
-      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA==",
+      "integrity": "sha512-dOy+3AuW3a2wNbZHIuMZpTcgjGuLU/uBL/ubcZF9OXbDo8ff4O8yVp5Bf0efS8uEoYo5q4Fx7dY9OgQGXgAsQA=="
-      "dev": true
     },
     "node_modules/color-support": {
       "version": "1.1.3",
@@ -4491,6 +4504,31 @@
         }
       }
     },
+    "node_modules/debug-level": {
+      "version": "3.1.2",
+      "resolved": "https://registry.npmjs.org/debug-level/-/debug-level-3.1.2.tgz",
+      "integrity": "sha512-YyD8cnCVnTlN7la4/cKUWJq15clsrff8ZXbj7RND8dd0YAl+/SdBhtfemZUY3oU8oxXPfGirrPfPBPFaulLlGA==",
+      "dependencies": {
+        "asyncc": "^2.0.6",
+        "chalk": "^4.1.2",
+        "fast-safe-stringify": "^2.1.1",
+        "flatstr": "^1.0.12",
+        "map-lru": "^2.0.0",
+        "ms": "^2.1.3",
+        "sonic-boom": "^3.2.1"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "optionalDependencies": {
+        "debug": "^4.3.1"
+      }
+    },
+    "node_modules/debug-level/node_modules/ms": {
+      "version": "2.1.3",
+      "resolved": "https://registry.npmjs.org/ms/-/ms-2.1.3.tgz",
+      "integrity": "sha512-6FlzubTLZG3J2a/NVCAleEhjzq5oxgHyaCU9yYXvcLsvoVaHJq/s5xXI6/XXP6tz7R9xAOtHnSO/tXtF3WRTlA=="
+    },
     "node_modules/decamelize": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
@@ -5703,6 +5741,11 @@
       "integrity": "sha512-DCXu6Ifhqcks7TZKY3Hxp3y6qphY5SJZmrWMDrKcERSOXWQdMhU9Ig/PYrzyw/ul9jOIyh0N4M0tbC5hodg8dw==",
       "dev": true
     },
+    "node_modules/fast-safe-stringify": {
+      "version": "2.1.1",
+      "resolved": "https://registry.npmjs.org/fast-safe-stringify/-/fast-safe-stringify-2.1.1.tgz",
+      "integrity": "sha512-W+KJc2dmILlPplD/H4K9l9LcAHAfPtP6BY84uVLXQ6Evcz9Lcg33Y2z1IVblT6xdY54PXYVHEv+0Wpq8Io6zkA=="
+    },
     "node_modules/fastq": {
       "version": "1.17.0",
       "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.17.0.tgz",
@@ -5885,6 +5928,11 @@
         "node": "^10.12.0 || >=12.0.0"
       }
     },
+    "node_modules/flatstr": {
+      "version": "1.0.12",
+      "resolved": "https://registry.npmjs.org/flatstr/-/flatstr-1.0.12.tgz",
+      "integrity": "sha512-4zPxDyhCyiN2wIAtSLI6gc82/EjqZc1onI4Mz/l0pWrAlsSfYH/2ZIcU+e3oA2wDwbzIWNKwa23F8rh6+DRWkw=="
+    },
     "node_modules/flatted": {
       "version": "3.2.9",
       "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.2.9.tgz",
@@ -6442,7 +6490,6 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
       "integrity": "sha512-EykJT/Q1KjTWctppgIAgfSO0tKVuZUjhgMr17kqTumMl6Afv3EISleU7qZUzoXDFTAHTDC4NOoG/ZxU3EvlMPQ==",
-      "dev": true,
       "engines": {
         "node": ">=8"
       }
@@ -8565,6 +8612,14 @@
         "node": ">=4"
       }
     },
+    "node_modules/map-lru": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/map-lru/-/map-lru-2.0.0.tgz",
+      "integrity": "sha512-a5TlnsxvczXMY7U/U4P0b7GI3KSAonc+u2MQtWQS5L21K9UV4fYQbbgktj3eqP5ch04XtCOcoqR0OlILo906nA==",
+      "engines": {
+        "node": ">=12"
+      }
+    },
     "node_modules/map-obj": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/map-obj/-/map-obj-2.0.0.tgz",
@@ -12777,6 +12832,14 @@
         "node": ">= 10"
       }
     },
+    "node_modules/sonic-boom": {
+      "version": "3.8.0",
+      "resolved": "https://registry.npmjs.org/sonic-boom/-/sonic-boom-3.8.0.tgz",
+      "integrity": "sha512-ybz6OYOUjoQQCQ/i4LU8kaToD8ACtYP+Cj5qd2AO36bwbdewxWJ3ArmJ2cr6AvxlL2o0PqnCcPGUgkILbfkaCA==",
+      "dependencies": {
+        "atomic-sleep": "^1.0.0"
+      }
+    },
     "node_modules/sort-keys": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/sort-keys/-/sort-keys-2.0.0.tgz",
@@ -13136,7 +13199,6 @@
       "version": "7.2.0",
       "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-7.2.0.tgz",
       "integrity": "sha512-qpCAvRl9stuOHveKsn7HncJRvv501qIacKzQlO/+Lwxc9+0q2wLyv4Dfvt80/DPn2pqOBsJdDiogXGR9+OvwRw==",
-      "dev": true,
       "dependencies": {
         "has-flag": "^4.0.0"
       },

package.json

@@ -46,6 +46,7 @@
     "typescript": "4.9.5"
   },
   "dependencies": {
+    "debug-level": "^3.1.2",
     "input": "^1.0.1",
     "mongodb": "^6.3.0",
     "mongoose": "^8.1.1",

src/bot.ts

@@ -1,6 +1,9 @@
-import { Telegraf } from 'telegraf';
+import { Context, NarrowedContext, Telegraf } from 'telegraf';
 import { message } from 'telegraf/filters';
-import { ChatFromGetChat } from 'telegraf/typings/core/types/typegram';
+import { ChatFromGetChat, Update } from 'telegraf/typings/core/types/typegram';
+import { ioc } from './utils/ioc';
+import { AudienceChangeController, audienceChangeSymbol } from './controllers/audienceChange';
+import { log } from './utils/log';
 
 export type ChannelInfo = {
   chatId: number,
@@ -9,7 +12,7 @@ export type ChannelInfo = {
 
 export type MessageInfo = {
 
-}
+};
 
 export class ChannelBot {
   private readonly bot: Telegraf;
@@ -29,6 +32,8 @@ export class ChannelBot {
     process.once('SIGINT', () => this.bot.stop('SIGINT'));
     process.once('SIGTERM', () => this.bot.stop('SIGTERM'));
 
+    this.bot.on('chat_member', this.handleChatMemberUpdate.bind(this));
+
     this.bot.launch(
       {
         allowedUpdates: [
@@ -43,6 +48,45 @@ export class ChannelBot {
     );
   }
 
+  private async handleChatMemberUpdate(ctx: NarrowedContext<Context<Update>, Update.ChatMemberUpdate>): Promise<void> {
+    try {
+      log.info('chat member change', JSON.stringify(ctx.chatMember));
+
+      const change = ctx.chatMember;
+      const status = change.new_chat_member.status;
+      const statusBefore = change.old_chat_member.status;
+      const role = ['restricted', 'left', 'kicked'].includes(status)
+        ? statusBefore
+        : status;
+
+      const ctrl = ioc.get<AudienceChangeController>(audienceChangeSymbol);
+
+      const chatMemberCount = await this.bot.telegram.getChatMembersCount(change.chat.id);
+
+      ctrl.add({
+        channelId: change.chat.id,
+        user: {
+          id: change.new_chat_member.user.id,
+          username: change.new_chat_member.user.username,
+          firstName: change.new_chat_member.user.first_name,
+          lastName: change.new_chat_member.user.last_name,
+          isBot: change.new_chat_member.user.is_bot,
+          isPremium: change.new_chat_member.user.is_premium ? true : false,
+          role,
+        },
+        timestamp: new Date(change.date * 1000),
+        status,
+        statusBefore,
+        invitedByLink: change.invite_link?.invite_link ?? undefined,
+
+        memberCountAfter: chatMemberCount,
+      });
+    }
+    catch (err) {
+      log.error('chat member change processing error', err);
+    }
+  }
+
   public async getChannelInfo(channelId: number): Promise<ChannelInfo> {
 
     const memberCount = await this.bot.telegram.getChatMembersCount(channelId);
@@ -63,21 +107,3 @@ export class ChannelBot {
 //   await sendChannelStats(ctx.chat.id);
 // });
 
-// bot.on('new_chat_members', async (ctx) => {
-//   console.log('new_chat_members');
-//   console.dir(ctx.chatMember);
-
-//   await sendChannelStats(ctx.chat.id);
-// });
-
-// bot.on('chat_member', async (ctx) => {
-//   console.log('chat_member');
-//   console.dir(ctx.chatMember);
-
-//   await sendChannelStats(ctx.chat.id);
-// });
-
-// // bot.start((ctx) => ctx.reply('Welcome'));
-// // bot.help((ctx) => ctx.reply('Send me a sticker'));
-// // bot.on(message('sticker'), (ctx) => ctx.reply('👍'));
-// // bot.hears('hi', (ctx) => ctx.reply('Hey there'));

src/controllers/audienceChange.ts

@@ -0,0 +1,15 @@
+import { AudienceChangeModel, IAudienceChange } from '../model/audienceChange';
+import { IUser } from '../model/user';
+import { ioc } from '../utils/ioc';
+
+export const audienceChangeSymbol = Symbol('audienceChange');
+
+export class AudienceChangeController {
+  public static register() {
+    ioc.set(audienceChangeSymbol, new AudienceChangeController());
+  }
+
+  public async add(change: IAudienceChange): Promise<void> {
+    await AudienceChangeModel.create(change);
+  }
+}

src/database.ts

@@ -0,0 +1,8 @@
+import mongoose from "mongoose";
+
+export async function connect() {
+  const dbUri = process.env.MONGO_URI ?? '';
+
+  await mongoose.connect(dbUri);
+  console.log("Connected to db");
+}

src/index.ts

@@ -1,40 +1,58 @@
 import { ChannelClient } from './client';
 import { ChannelBot } from './bot';
+import { connect } from './database';
+import { ioc } from './utils/ioc';
+import { AudienceChangeController } from './controllers/audienceChange';
 
 (async () => {
 
-  const apiId = Number(process.env.TELEGRAM_API_ID ?? '0');
+  try {
-  const apiHash = process.env.TELEGRAM_API_HASH ?? '';
+    await connect();
-  const apiSession = process.env.TELEGRAM_API_SESSION ?? '';
 
-  const botToken = process.env.TELEGRAM_BOT_TOKEN ?? '';
+    AudienceChangeController.register();
 
-  const channelId = Number(process.env.TELEGRAM_CHANNEL_ID ?? '0');
+    const apiId = Number(process.env.TELEGRAM_API_ID ?? '0');
+    const apiHash = process.env.TELEGRAM_API_HASH ?? '';
+    const apiSession = process.env.TELEGRAM_API_SESSION ?? '';
 
-  const client = new ChannelClient(
+    const botToken = process.env.TELEGRAM_BOT_TOKEN ?? '';
-    apiId,
-    apiHash,
-    apiSession,
-  );
 
-  const bot = new ChannelBot(
+    const channelId = Number(process.env.TELEGRAM_CHANNEL_ID ?? '0');
-    botToken,
-  );
 
-  await bot.connect();
+    const client = new ChannelClient(
-  await client.connect();
+      apiId,
+      apiHash,
+      apiSession,
+    );
 
-  const messages = await client.getChannelMessages(channelId, { statsOnly: true });
+    const bot = new ChannelBot(
-  console.dir(messages);
+      botToken,
+    );
 
-  const users = await client.getChannelUsers(channelId);
+    await bot.connect();
+    await client.connect();
 
-  console.dir(users);
+    try {
-  console.dir(await bot.getChannelInfo(channelId));
+      const messages = await client.getChannelMessages(channelId, { statsOnly: true });
+      console.dir(messages);
 
-  // for (const message of messages)
+      const users = await client.getChannelUsers(channelId);
-  //   console.dir(await client.getChannelMessage(channelId, message.id));
 
+      console.dir(users);
+    }
+    catch (err) {
+      console.error(err);
+    }
+
+    console.dir(await bot.getChannelInfo(channelId));
+
+    // for (const message of messages)
+    //   console.dir(await client.getChannelMessage(channelId, message.id));
+  }
+  catch (err) {
+    console.error(err);
+    throw err;
+  }
 })()
   .catch((err) => console.error);
 

src/model/audienceChange.ts

@@ -0,0 +1,40 @@
+import mongoose from "mongoose";
+
+import { IUser, UserSchema } from './user';
+
+export type IAudienceChange = {
+  channelId: number,
+
+  user: IUser,
+
+  timestamp: Date,
+  status: string,
+  statusBefore: string,
+  invitedByLink: string | undefined,
+
+  memberCountAfter: number;
+};
+
+const AudienceChangeSchema = new mongoose.Schema<IAudienceChange>(
+  {
+    channelId: { type: Number, required: true },
+
+    user: UserSchema,
+
+    timestamp: Date,
+    status: { type: String },
+    statusBefore: { type: String },
+    invitedByLink: { type: String },
+
+    memberCountAfter: { type: Number, required: true },
+  },
+  {
+    collection: 'audienceChange',
+    timestamps: true,
+  }
+);
+
+export const AudienceChangeModel = mongoose.model<IAudienceChange>(
+  'audienceChange',
+  AudienceChangeSchema,
+);

src/model/user.ts

@@ -0,0 +1,23 @@
+import mongoose from 'mongoose';
+
+export type IUser = {
+  id: number;
+  username: string | undefined;
+  firstName: string;
+  lastName: string | undefined;
+  isBot: boolean;
+  isPremium: boolean;
+  role: string; // 'member' | 'administrator' | 'creator';
+}
+
+export const UserSchema = new mongoose.Schema<IUser>(
+  {
+    id: { type: Number, required: true },
+    username: { type: String, required: true },
+    firstName: { type: String },
+    lastName: { type: String },
+    isBot: { type: Boolean, required: true },
+    isPremium: { type: Boolean, required: true },
+    role: { type: String, required: true },
+  }
+);

src/utils/ioc.ts

@@ -0,0 +1,21 @@
+class IOC {
+  private readonly items = new Map<Symbol, any>();
+
+  public set<T>(key: Symbol, obj: T): void {
+    this.items.set(key, obj);
+  }
+
+  public get<T>(key: Symbol): T {
+    return this.items.get(key) as T;
+  }
+
+  public create<A extends any[], T extends { new(...args: A): T; }>(
+    key: Symbol,
+    ...args: A
+  ): T {
+    const cls = this.get(key) as { new(...args: A): T; };
+    return new cls(...args);
+  }
+}
+
+export const ioc = new IOC();

src/utils/log.ts

@@ -0,0 +1,3 @@
+import Log from 'debug-level';
+
+export const log = new Log('');