# Gelbooru Image Bot for Misskey

Simple python bot which scrapes images from gelbooru based on specified tags every hour and posts to a misskey instance. The script can handle multiple bots simulatenously.

- Uses a systemd timer.
- Posts original source when available.
- Attempts to optimize downloaded images for size with PIL.
- Attempts to renote the original source if possible.
- Option for posting to hashtags (limits to once per day to avoid drowning out other content).

## Installation

**Requires the pillow library:** `pip install pillow`

Edit the misskeybot.service file with your install path, copy misskeybot.service and misskeybot.timer to `/etc/systemd/system/` then run as root:

```bash
systemctl daemon-reload                 #Reload unit files
systemctl enable misskeybot.timer       #Enable the periodic execution of the script
systemctl start misskeybot.timer        #Start the periodic execution of the script
```

## Usage

```bash
python .\gelbooru_poster.py --help
Usage: python3 gelbooru-bot.py [--gen-config] [--help]
  --gen-config: Add a new bot to the config.json file
  --help: Show this help message
  No arguments: Run the bot
  Note: The values in defaults.json will be used if the values are not set in config.json
```


## Files
### config.json

```json
{
    "hololive_images": {
        "gelbooru_tags": "hololive",
        "gelbooru_tags_exclude": "-sky",
        "bot_message": ["Hololive Image $dh$\n$gel_src$\n$src$", "Uooooh $dh$\n$gel_src$\n$src$"],
        "bot_hashtags": "#hololive",
        "misskey_token": "uuuu0hOhrrrlrlrP8888uquqaaaaAUAU",
        "max_page_number": 200,
        "last_run_time": -1,
        "next_run_time": -1,
    },
    "kancolle": {
        "gelbooru_tags": "{kantai_collection ~ boat_girl}",
        "gelbooru_tags_exclude": "",
        "bot_message": "$dh$\n$gel_src$\n$src$",
        "bot_hashtags": "#kancolle",
        "misskey_token": "HHkkuuuutdtdrrrrvWvW8888yayaaaaa",
        "max_page_number": 200,
        "misskey_url": "https://misskey.io/api/",
        "last_run_time": 1696896202.1551812,
        "next_run_time": 1696899802.1551812,
    }
}
```

Message formatting:

- `$dh$` : Daily hashtag
- `$gel_src$` : Gelbooru link
- `$src$` : Original source

Other fields:

- `max_page_number:` Automatically determined by the script.

- `last_run_time:` Unused.

- `next_run_time:` Used to schedule the next time to post on that specific account.


### defaults.json

```json
{
    "gelbooru_tags": "rating:safe",
    "gelbooru_tags_exclude": "",
    "bot_message": "Random image from Gelbooru",
    "misskey_url": "https://misskey.io/api/",
    "misskey_token": "",
    "max_page_number": 1000
}
```

 - These values are used if not defined in the `config.json`, useful if all bots are on the same url.