# Ad Support & Multi-line Comment Fix

## Changes in this branch

### 1. Fixed `\n` handling in replies and ads
The bot now properly converts literal `\n` escape sequences to actual newlines when loading replies from `storage/replies.txt` and ads from `storage/ads.txt`. This fixes the issue where the Lolz API couldn't handle multi-line comments properly.

**Before**: `\n` was sent as literal text
**After**: `\n` is converted to actual newline characters

### 2. Added Ad Support
You can now add advertisements to your bot's comments with configurable probability.

#### Configuration (`.env`):
```env
# Enable/disable ads (default: false)
ENABLE_ADS=true

# Probability of adding an ad to a comment (0.0 - 1.0, where 1.0 = 100%)
# Default: 0.3 (30% chance)
ADS_PROBABILITY=0.3
```

#### Ad File (`storage/ads.txt`):
Create a file `storage/ads.txt` with your ad content. The file can contain multi-line BBCode:

```
[ad=align=center][CENTER]PROXYLEET — прокси под работу с аккаунтами и трафиком.
Серверные IPv4 (десятки стран), мобильные, MTProto. От 164 ₽ / 30 дней.
Выдача автоматическая, оплата с баланса лолза.
Промокод LOLZ10 — 10% скидки.

[UNFURL]https://lolz.team/threads/1337[/UNFURL][/CENTER][/ad]
```

**Note**: You can use `\n` in the ad file to create newlines, and it will be converted to actual newlines automatically.

### 3. How it works
- When `ENABLE_ADS=true`, the bot will randomly add the ad content to comments based on `ADS_PROBABILITY`
- The ad is appended to the comment with a double newline separator (`\n\n`)
- Each comment has an independent chance of including the ad
- If the ad file is not found or empty, ads are silently skipped

### Example Usage

**Without ads**:
```
✓
```

**With ads (30% probability)**:
```
✓

[ad=align=center][CENTER]PROXYLEET — прокси под работу с аккаунтами и трафиком.
Серверные IPv4 (десятки стран), мобильные, MTProto. От 164 ₽ / 30 дней.
Выдача автоматическая, оплата с баланса лолза.
Промокод LOLZ10 — 10% скидки.

[UNFURL]https://lolz.team/threads/1337[/UNFURL][/CENTER][/ad]
```

### Migration from main branch
1. Update your `.env` file with the new variables (see `.env.example`)
2. Create `storage/ads.txt` with your ad content (optional)
3. Existing `storage/replies.txt` will now properly handle `\n` sequences

### Testing
To test the multi-line functionality, you can use `\n` in your replies:
```
First line\nSecond line\nThird line
```

This will now correctly appear as:
```
First line
Second line
Third line
```