# Help bot

![](https://3310729168-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LVh0yg9olT-QWqi3AYt%2F-LWOxkM1urBFHJncp_4D%2F-LWOxv17hMVWXDlFeNX2%2Fimage.png?alt=media\&token=c4a0bba2-52ce-4d10-a7cb-10638f4f2e05)

In Bots.Business chat we have many generic questions. [This bot](https://telegram.me/BBHelpBot) can answer for them.

Bot is [Inline bot](https://help.bots.business/bjs/inline-bot) - it can used for searching in [help.bots.business](https://app.gitbook.com/o/zVsoOYuMpZ1g1IdtVniv/s/-LVh0yg9olT-QWqi3AYt/)

Also bot use [Master command](https://help.bots.business/commands#how-to-execute-command-with-any-text-from-user-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:

```javascript
if(!message){ return }
```

{% hint style="info" %}
Do you have big case for command execution? You can use return.  
{% endhint %}

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

```javascript
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:

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

Sometimes we need exact searhing:

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

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

```javascript
let stext = message.toLowerCase();
```

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

```javascript
// 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);
    }
  }
}
```

{% hint style="info" %}
Functions create your code more simple. It is good for it rewriting and improvement.
{% endhint %}

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

```javascript

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

```

{% hint style="info" %}
In this command - we have only one Bot.sendMessage function!

It is good - code more simple.
{% endhint %}