quit event, join event now fires only once in a while for the same player

bot.js

@@ -1,5 +1,5 @@
 import Telegraf from 'telegraf'
-import { saveChat, getChats } from './database'
+import { saveChat, getChats, saveLogout, getLastLogoutTime } from './database'
 import {
   TYPE_JOIN, TYPE_DEATH, DEATH_TYPE_CONTACT, DEATH_TYPE_BLOCK_EXPLOSION, DEATH_TYPE_ENTITY_ATTACK,
   DEATH_TYPE_ENTITY_SWEEP_ATTACK, DEATH_TYPE_PROJECTILE, DEATH_TYPE_FALL, DEATH_TYPE_FIRE,
@@ -7,23 +7,19 @@ import {
   DEATH_TYPE_ENTITY_EXPLOSION, DEATH_TYPE_VOID, DEATH_TYPE_LIGHTNING, DEATH_TYPE_SUICIDE,
   DEATH_TYPE_STARVATION, DEATH_TYPE_POISON, DEATH_TYPE_MAGIC, DEATH_TYPE_FALLING_BLOCK,
   DEATH_TYPE_THORNS, DEATH_TYPE_DRAGON_BREATH, DEATH_TYPE_CUSTOM, DEATH_TYPE_HOT_FLOOR,
-  DEATH_TYPE_FLY_INTO_WALL, DEATH_TYPE_CRAMMING, DEATH_TYPE_DRYOUT
+  DEATH_TYPE_FLY_INTO_WALL, DEATH_TYPE_CRAMMING, DEATH_TYPE_DRYOUT, TYPE_QUIT
 } from './types'
+import { currentTime } from './utility'
 
 const bot = new Telegraf('643297173:AAGuqfZx3GhiiARwvY7AtWTTFw1T-2FiwCM')
 
 bot.start(({ message: { chat: { id } } }) => saveChat(id))
 bot.launch()
 
-const sendMessageToAll = text => {
-  getChats()
-    .then(chats => chats.map(({ chatId }) => chatId))
-    .then(chatIds => {
-      for (let id of chatIds) {
-        bot.telegram.sendMessage(id, text)
-      }
-    })
-}
+const sendMessageToAll = text => getChats()
+  .then(chats => chats.map(({ chatId }) => chatId)
+    .forEach(chatId => bot.telegram.sendMessage(chatId, text))
+  )
 
 const getEntityDeathMessage = payload => {
   switch (payload.deathType) {
@@ -84,14 +80,21 @@ const getEntityDeathMessage = payload => {
   }
 }
 
+const JOIN_NOTIFICATION_LIMIT = 60 * 60 // 1h
+
 export const sendEvent = ({ type, ...payload }) => {
   switch (type) {
     case TYPE_JOIN:
-      sendMessageToAll(`Игрок ${payload.displayName} присоединился!`)
+      getLastLogoutTime(payload.displayName)
+        .then(lastLogoutTime => lastLogoutTime < currentTime() - JOIN_NOTIFICATION_LIMIT &&
+          sendMessageToAll(`Игрок ${payload.displayName} присоединился!`))
+      break
+    case TYPE_QUIT:
+      saveLogout(payload.displayName)
       break
     case TYPE_DEATH:
       console.log({ payload })
-      sendMessageToAll(`Игрок ${payload.displayName} ${getEntityDeathMessage(payload)}. Убийца: ${payload.killerName}`)
+      sendMessageToAll(`Игрок ${payload.displayName} ${getEntityDeathMessage(payload)} :(`)
       break
   }
 }

database.js

@@ -1,4 +1,5 @@
 import sqlite from 'sqlite3'
+import { currentTime } from './utility'
 
 const db = new sqlite.Database('bot.db')
 db.run(
@@ -7,20 +8,25 @@ db.run(
     UNIQUE(chatId)
   )`)
 
-export const saveChat = id => {
-  return new Promise((resolve, reject) => {
-    db.run(`INSERT OR IGNORE INTO chats (chatId) VALUES (?)`, [ id ], (err) => {
+db.run(
+  `CREATE TABLE IF NOT EXISTS logouts (
+    displayName INTEGER,
+    lastLogoutTime DATETIME,
+    UNIQUE(displayName)
+  )`)
+
+const run = (sql, params) => new Promise((resolve, reject) => {
+  db.run(sql, params, (err) => {
     if (err) {
       reject(err)
     } else {
-        resolve({ id })
+      resolve()
     }
   })
 })
-}
 
-export const getChats = () => {
-  return new Promise((resolve, reject) => {
+export const saveChat = id => run(`INSERT OR IGNORE INTO chats (chatId) VALUES (?)`, [ id ])
+export const getChats = () => new Promise((resolve, reject) => {
   db.all('SELECT * FROM chats', [], (err, rows) => {
     if (err) {
       reject(err)
@@ -29,4 +35,18 @@ export const getChats = () => {
     }
   })
 })
+
+export const saveLogout = displayName => run(
+  `INSERT OR REPLACE INTO logouts (displayName, lastLogoutTime) VALUES (?, ?)`,
+  [ displayName, currentTime() ]
+)
+export const getLastLogoutTime = displayName => new Promise((resolve, reject) => {
+  db.get(`SELECT lastLogoutTime FROM logouts WHERE displayName = ?`, [ displayName ], (err, row) => {
+    if (err) {
+      reject(err)
+    } else {
+      console.log({ row })
+      resolve(row ? row.lastLogoutTime : null)
     }
+  })
+})

main.js

@@ -1,18 +1,6 @@
 import express from 'express'
 import { sendEvent } from './bot'
 
-(function() {
-    var childProcess = require("child_process");
-    var oldSpawn = childProcess.spawn;
-    function mySpawn() {
-        console.log('spawn called');
-        console.log(arguments);
-        var result = oldSpawn.apply(this, arguments);
-        return result;
-    }
-    childProcess.spawn = mySpawn;
-})();
-
 const web = express()
 
 web.use(express.json())

types.js

@@ -1,4 +1,5 @@
 export const TYPE_JOIN = 'join'
+export const TYPE_QUIT = 'quit'
 export const TYPE_DEATH = 'death'
 
 /**

utility.js

@@ -0,0 +1 @@
+export const currentTime = () => Math.round(new Date().getTime() / 1000)