Help bot

In Bots.Business chat we have many generic questions. This bot can answer for thems.

Bot have only one command. This command is Master command - *.

Code description

Bot receive all messages from chat with Master command.

So we do not need any notifications about new chat members and etc:

if(!message){ return }

Do you have big case for command execution? You can use return.

Bot have keywords for searching in user's messages. Bot show answer and url on keywoard in message:

list = [
{ url: "status.bots.business", keywords: [ 'status' ],
answer: 'Seems do you need to know uptime status?' },
{ keywords: [ '/start' ], answer: 'Please do not touch it here' },
{ keywords: [ 'php ', ' php' ], answer: 'PHP? Really? I love BJS only' },
{ keywords: [ 'hi!', 'hello' ], answer: 'Hey!' }
]

Also admin can write anything and do not need any help. So we have key - answerToAdmin:

let admin_tg_id = 519829299;
...
{ url: "status.bots.business", keywords: [ 'status' ], answerToAdmin: true }

Sometimes we need exact searhing:

{ url: "help.bots.business", keywords: [ 'help' ], exact:true}

Message can be in aNyCAse. We need it only in lowercase:

let stext = message.toLowerCase();

We use functions in the code. So code more simple:

// search keyword in the message (stext)
function haveAnyKeyword(item){
for(var ind in item.keywords){
// exact searhing
if(item.exact){
// exact searching
if(stext==item.keywords[ind]){ return true }
continue;
}
if(stext.indexOf(item.keywords[ind])>-1){ return true }
}
}
// build answer
function getAnswerFor(item){
if((user.telegramid==admin_tg_id)&&(!item.answerToAdmin)){
// no any answer for admin
return;
}
let answer = item.answer;
if(!answer){ answer = "" }
if(item.url){
answer = answer + "\nhttp://" + item.url
}
return answer;
}
// just bust all keywords list
function doSearch(){
let item;
let answer;
for(var ind in list){
item = list[ind];
if(haveAnyKeyword(item.keywords)){
return getAnswerFor(item);
}
}
}

Functions create your code more simple. It is good for it rewriting and improvement.

Perform searching. And if we get answer - send message:

let answer = doSearch();
if(answer){
Bot.sendMessage(answer, {is_reply: true});
}

In this command - we have only one Bot.sendMessage function!

It is good - code more simple.