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rank-torrent-name

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Parse Filenames and Rank them according to your preferences!

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<h1>Rank Torrent Name (RTN)</h1>

</div>
<br>

**Rank Torrent Name (RTN)** is a Python library designed to parse and rank torrent names based on customizable criteria. It allows users to define their preferences for filtering and ranking torrents, providing a detailed analysis of each torrent's metadata. RTN is perfect for automating the selection of torrents based on quality, resolution, audio, and more.

> **RTN** is mean't to be used as a Version and Ranking System for parsing and scoring scraped torrent results.

## Features

- **Advanced Torrent Parsing:** Utilizes PTN for parsing and enriches metadata with custom-defined patterns.
- **Customizable Ranking:** Define detailed preferences for ranking torrents based on attributes like resolution, audio quality, and others.
- **Flexible Filtering:** Easily specify requirements, exclusions, and preferences for torrent selection.
- **Comprehensive Ranking Model:** Includes a default ranking model that can be customized or extended according to your needs.
- **Levenshtein Ratio Comparison:** Compares parsed titles with original titles to ensure accuracy.

## Installation

```bash
pip install rank-torrent-name
```

or you can add it to your project through `Poetry` as well,

```bash
poetry add rank-torrent-name
```

## Quick Start

### Setting Up Your Preferences

1. **Create a Settings Model:** Begin by defining your preferences in a `SettingsModel`. This includes specifying the required patterns, exclusions, preferences, and custom ranks for various torrent attributes.

```python
from RTN.models import SettingsModel, CustomRank

settings = SettingsModel(
    require=["4K", "1080p"],
    exclude=["/CAM/i", "TS"],
    preferred=["HDR", "/BluRay/"],
    custom_ranks={
        "uhd": CustomRank(enable=False, fetch=True, rank=120),
        "fhd": CustomRank(enable=False, fetch=True, rank=90),
        "hd": CustomRank(enable=False, fetch=True, rank=80),
        "sd": CustomRank(enable=False, fetch=True, rank=-120),
        "bluray": CustomRank(enable=False, fetch=True, rank=80),
        "hdr": CustomRank(enable=False, fetch=True, rank=40),
        "hdr10": CustomRank(enable=False, fetch=True, rank=50),
        "dolby_video": CustomRank(enable=False, fetch=True, rank=-100),
        "dts_x": CustomRank(enable=False, fetch=True, rank=0),
        "dts_hd": CustomRank(enable=False, fetch=True, rank=0),
        "dts_hd_ma": CustomRank(enable=False, fetch=True, rank=0),
        "atmos": CustomRank(enable=False, fetch=True, rank=0),
        "truehd": CustomRank(enable=False, fetch=True, rank=0),
        "ddplus": CustomRank(enable=False, fetch=True, rank=0),
        "aac": CustomRank(enable=False, fetch=True, rank=70),
        "remux": CustomRank(enable=False, fetch=True, rank=-1000),
        "webdl": CustomRank(enable=False, fetch=True, rank=90),
        "repack": CustomRank(enable=False, fetch=True, rank=5),
        "proper": CustomRank(enable=False, fetch=True, rank=4),
        "dubbed": CustomRank(enable=False, fetch=True, rank=4),
        "subbed": CustomRank(enable=False, fetch=True, rank=2),
        "av1": CustomRank(enable=False, fetch=True, rank=0),
    }
)
```

> :warning: You don't need to set **CAM** and **TS** as these are already disregarded by default. This is just an example.

We cover a lot already, so users are able to add their own custom regex patterns without worrying about the basic patterns.

#### Understanding Fetch and Enable:

- `fetch`: Determines if RTN should consider a torrent for downloading based on the attribute. True means RTN will fetch torrents matching this criterion.
- `enable`: Controls whether the custom rank value is used in the overall ranking calculation. Disabling it reverts to using the ranking model you set instead. This is useful for toggling custom ranks on and off from a users perspective.
- `rank`: Sets the rank at which that item is graded with.

For example, if we detect a title is **4K** or **2160p** then we use the `uhd` ranking, and add **+120** points. The same goes for the rest of the strings in `custom_ranks`.

Settings can be easily adjusted at runtime if needed. To enable or disable a specific rank dynamically:

```python
settings.custom_ranks["hdr"].enable = False  # To disable HDR ranking
```

### Ranking Torrents

2. **Rank a Torrent:** Feed a torrent title to RTN to parse it and calculate its rank based on your settings.

```python
from RTN import RTN
from RTN.models import DefaultRanking

rtn = RTN(settings=settings, ranking_model=DefaultRanking())
torrent = rtn.rank("Example.Movie.2020.1080p.BluRay.x264-Example", "infohash123456")
```

3. **Inspecting the Torrent Object:** The returned `Torrent` object includes parsed data and a rank. Access its properties to understand its quality:

```python
print(f"Title: {torrent.data.parsed_title}, Rank: {torrent.rank}")
```

### Sorting Torrents

4. **Sort Multiple Torrents:** If you have multiple torrents, RTN can sort them based on rank, helping you select the best one.

```python
torrents = [rtn.rank(title, "infohash") for title in torrent_titles]
sorted_torrents = RTN.sort(torrents)
```

## Torrent Object

A `Torrent` object encapsulates metadata about a torrent, such as its title, parsed information, and rank. Here's an example structure:

```python
Torrent(
    raw_title="Example.Movie.2020.1080p.BluRay.x264-Example",
    infohash="infohash123456",
    data=ParsedData(parsed_title='Example Movie', ...),
    fetch=True,
    rank=150,
    lev_ratio=0.95
)
```

## Understanding SettingsModel and RankingModel

**SettingsModel** and **RankingModel** play crucial roles in RTN, offering users flexibility in filtering and ranking torrents according to specific needs. Here's what each model offers and why they are important:

### SettingsModel

`SettingsModel` is where you define your filtering criteria, including patterns to require, exclude, and prefer in torrent names. This model allows for dynamic configuration of torrent selection based on user-defined patterns and preferences.

Key functionalities:
- **Filtering Torrents:** Determine which torrents to consider or ignore based on matching patterns.
- **Prioritizing Torrents:** Indicate preferred attributes that give certain torrents higher precedence.
- **Custom Ranks Usage:** Decide how specific attributes influence the overall ranking, enabling or disabling custom ranks.

Example usage:
```python
from RTN.models import SettingsModel, CustomRank

settings = SettingsModel(
    require=["1080p", "4K"],
    exclude=["CAM"],
    preferred=["HDR", "/SenSiTivE/"],
    custom_ranks={
        "uhd": CustomRank(enable=True, fetch=True, rank=200),
        "hdr": CustomRank(enable=True, fetch=True, rank=100),
    }
)
```

As shown above with **"/SenSiTivE/"**, you are able to set explicit case sensitivity as well for entering patterns for `require`, `exclude` and `preferred` attributes. We default to ignore case sensitivity.

### RankingModel

While `SettingsModel` focuses on the selection and preference of torrents, `RankingModel` (such as `BaseRankingModel` or its extensions) is designed to compute the ranking scores based on those preferences. This model allows for the creation of a nuanced scoring system that evaluates each torrent's quality and attributes, translating user preferences into a quantifiable score.

Key functionalities:
- **Scoring Torrent Attributes:** Assign scores to various torrent attributes like resolution, audio quality, etc.
- **Customizable Ranking Logic:** Extend `BaseRankingModel` to tailor ranking criteria and values, enhancing the decision-making process in selecting torrents.

Example usage:
```python
from RTN.models import BaseRankingModel

class MyRankingModel(BaseRankingModel):
    uhd = 200  # Ultra HD content
    hdr = 100  # HDR content
    # Define more attributes and scores as needed
```

### Why Both Models are Necessary

`SettingsModel` and `RankingModel` work together to provide a comprehensive approach to torrent ranking:
- **SettingsModel** specifies what to look for in torrents, defining the search and preference criteria.
- **RankingModel** quantifies those preferences, assigning scores to make informed decisions on which torrents are of higher quality and relevance.

This separation allows for flexible configuration and a powerful, customizable ranking system tailored to individual user preferences.

### BaseRankingModel

Here is the default BaseRankingModel that RTN uses, and it's attributes.

```py
class BaseRankingModel(BaseModel):
    """
    A base class for ranking models used in the context of media quality and attributes.
    The ranking values are used to determine the quality of a media item based on its attributes.

Attributes:
        uhd (int): The ranking value for Ultra HD (4K) resolution.
        fhd (int): The ranking value for Full HD (1080p) resolution.
        hd (int): The ranking value for HD (720p) resolution.
        sd (int): The ranking value for SD (480p) resolution.
        bluray (int): The ranking value for Blu-ray quality.
        hdr (int): The ranking value for HDR quality.
        hdr10 (int): The ranking value for HDR10 quality.
        dolby_video (int): The ranking value for Dolby video quality.
        dts_x (int): The ranking value for DTS:X audio quality.
        dts_hd (int): The ranking value for DTS-HD audio quality.
        dts_hd_ma (int): The ranking value for DTS-HD Master Audio audio quality.
        atmos (int): The ranking value for Dolby Atmos audio quality.
        truehd (int): The ranking value for Dolby TrueHD audio quality.
        ddplus (int): The ranking value for Dolby Digital Plus audio quality.
        ac3 (int): The ranking value for AC3 audio quality.
        aac (int): The ranking value for AAC audio quality.
        remux (int): The ranking value for remux attribute.
        webdl (int): The ranking value for web-dl attribute.
        repack (int): The ranking value for repack attribute.
        proper (int): The ranking value for proper attribute.
        dubbed (int): The ranking value for dubbed attribute.
        subbed (int): The ranking value for subbed attribute.
        av1 (int): The ranking value for AV1 attribute.
    """
    # resolution
    uhd: int = 0
    fhd: int = 0
    hd: int = 0
    sd: int = 0
    # quality
    bluray: int = 0
    hdr: int = 0
    hdr10: int = 0
    dolby_video: int = 0
    # audio
    dts_x: int = 0
    dts_hd: int = 0
    dts_hd_ma: int = 0
    atmos: int = 0
    truehd: int = 0
    ddplus: int = 0
    ac3: int = 0
    aac: int = 0
    # other
    remux: int = 0
    webdl: int = 0
    repack: int = 5
    proper: int = 4
    # extras
    dubbed: int = 4
    subbed: int = 2
    av1: int = 0
```

Keep in mind that these are explicitly set within RTN and are needed in order for RTN to work. You can add new attributes, but it will be up to you to handle them.

Create as many `SettingsModel` and `RankingModel` as you like to use anywhere in your code. They are mean't to be used as a way to version settings for your users.

# Extras

## Torrent Parser

You can also parse a torrent title similar to how PTN works. This is an enhanced version of PTN that combines RTN's parsing as well. This also includes enhanced episode parsing as well that covers a much better range of titles.

Using the example above:

```py
from RTN import parse
parsed = parse("Example.Movie.2020.1080p.BluRay.x264-Example")

print(parsed.data.raw_title)    # Output: "Example.Movie.2020.1080p.BluRay.x264-Example"
print(parsed.data.parsed_title) # Output: "Example Movie"
print(parsed.data.year)         # Output: [2020]
```

> :warning: We also set **coherent_types** to `True` from the PTN data that get's combined with RTN parsed metadata.
> This just ensures that all the types are uniform. **Everything is either a list of string or int's, or it's a boolean.**

## Checking Title Similarity

Sometimes, you might just want to check if two titles match closely enough, without going through the entire ranking process. RTN provides a simple function, title_match, for this purpose:

```py
from RTN import title_match

# Check if two titles are similar above a threshold of 0.9
match = title_match("Correct Movie Title 2020", "Correct Movie Title (2020)")
print(match)  # Output: True if similarity is above 0.9, otherwise False
>>> True
```

This functionality is especially useful when you have a list of potential titles and want to find the best match for a given reference title.

## Trash Check

Maybe you just want to use our own garbage collector to weed out bad titles in your current scraping setup?

```py
from RTN import check_trash

if check_trash(raw_title):
    # You can safely remove any title or item from being scraped if this returns True!
    ...
```

## Movie Check

Now you can check if a raw torrent title is a `movie` or a `show` type!

```py
from RTN.parser import get_type, parse

parsed_data = parse("Joker.2019.PROPER.mHD.10Bits.1080p.BluRay.DD5.1.x265-TMd", remove_trash = False)
print(parsed_data.type)
>>> "movie"
```

Alternatively, if you prefer a boolean, you can use `is_movie` instead, like so:

```py
from RTN.parser import is_movie, parse

parsed_data = parse("Joker.2019.PROPER.mHD.10Bits.1080p.BluRay.DD5.1.x265-TMd", remove_trash = False)
print(is_movie(parsed_data))
>>> True
```

# Real World Example

Here is a crude example of how you could use RTN in scraping.

```py
from RTN import RTN, Torrent, DefaultRanking
from RTN.exceptions import GarbageTorrent

# Assuming 'settings' is defined somewhere and passed correctly.
rtn = RTN(settings=settings, ranking_model=DefaultRanking())
...
# Define some function for scraping for results from some API.
    if response.ok:
        torrents = set()
        for stream in response.streams:
            if not stream.infohash or not title_match(correct_title, stream.title):
                # Skip results that don't match the query.
                # We want to do this first to weed out torrents
                # that are below the 90% match criteria. (Default is 90%)
                continue
            try:
                torrent: Torrent = rtn.rank(stream.title, stream.infohash)
            except GarbageTorrent:
                # One thing to note is that as we parse titles, we also get rid of garbage.
                # Feel free to add your own logic when this happens!
                # You can bypass this by setting `remove_trash` to `False` in `rank` or `parse`.
                pass
            if torrent and torrent.fetch:
                # If torrent.fetch is True, then it's a good torrent,
                # as considered by your ranking profile and settings model.
                torrents.add(torrent)

# Sort the list of torrents based on their rank in descending order
        sorted_torrents = sorted(list(torrents), key=lambda x: x.rank, reverse=True)
        return sorted_torrents
    ...

# Example usage
for torrent in sorted_torrents:
    print(f"Title: {torrent.data.parsed_title}, Infohash: {torrent.infohash}, Rank: {torrent.rank}")
```

# ParsedData Structure

Here is all of the attributes of `data` from the `Torrent` object, along with their default values.

This is accessible at `torrent.data` in the `Torrent` object. Ex: `torrent.data.resolution`

```py
class ParsedData(BaseModel):
    """Parsed data model for a torrent title."""

raw_title: str
    parsed_title: str
    fetch: bool = False
    is_4k: bool = False
    is_multi_audio: bool = False
    is_multi_subtitle: bool = False
    is_complete: bool = False
    year: int = 0
    resolution: List[str] = []
    quality: List[str] = []
    season: List[int] = []
    episode: List[int] = []
    codec: List[str] = []
    audio: List[str] = []
    subtitles: List[str] = []
    language: List[str] = []
    bitDepth: List[int] = []
    hdr: str = ""
    proper: bool = False
    repack: bool = False
    remux: bool = False
    upscaled: bool = False
    remastered: bool = False
    directorsCut: bool = False
    extended: bool = False
```

This will continue to grow though as we expand on functionality, so keep checking back for this list!

> :warning: Don't see something you want in the list? Submit a [Feature Request](https://github.com/dreulavelle/rank-torrent-name/issues/new?assignees=dreulavelle&labels=kind%2Ffeature%2Cstatus%2Ftriage&projects=&template=---feature-request.yml) to have it added!

## Performance Benchmarks

Here, we dive into the heart of RTN's efficiency, showcasing how it performs under various loads. Whether you're parsing a single title or ranking thousands, understanding these benchmarks will help you optimize your use of RTN.

### Benchmark Categories

We categorize benchmarks into two main processes:
- **Parsing**: Measures the time to parse a title and return a `ParsedData` object.
- **Ranking**: A comprehensive process that includes parsing and then evaluates the title based on defined criteria. This represents a more "real-world" scenario and is crucial for developers looking to integrate RTN effectively.

### Benchmark Results

To facilitate comparison, we've compiled the results into a single table:

| Operation                                    | Items Count | Mean Time    | Standard Deviation |
|----------------------------------------------|-------------|--------------|--------------------|
| **Parsing Benchmark (Single item)**          | 1           | 583 us       | 10 us              |
| **Batch Parse Benchmark (Small batch)**      | 10          | 6.24 ms      | 0.16 ms            |
| **Batch Parse Benchmark (Large batch)**      | 1000        | 1.57 s       | 0.06 s             |
| **Batch Parse Benchmark (XLarge batch)**     | 2000        | 3.62 s       | 0.11 s             |
| **Ranking Benchmark (Single item)**          | 1           | 616 us       | 11 us              |
| **Batch Rank Benchmark (Small batch)**       | 10          | 24.6 ms      | 2.4 ms             |
| **Batch Rank Benchmark (Large batch)**       | 1000        | 3.13 s       | 0.15 s             |
| **Batch Rank Benchmark (XLarge batch)**      | 2000        | 6.27 s       | 0.13 s             |

> :warning: Test Bench consisted of **R9 5900X CPU** and **64GB DDR4 RAM** - Your mileage may vary.

To run your own benchmark, you can clone the repo and run `make benchmark` from inside the root of the repository.

### Benchmark Settings

- **Small batch parsing** used a `chunk_size` of `10`.
- **Large batch parsing** handled `chunk_size` of `200`.
- **XLarge batch parsing** handled `chunk_size` of `500`.
- **Small batch ranking** operated with the default `max_workers` of `4` and used a `chunk_size` of `10`.
- **Large batch ranking** escalated concurrency with `max_workers` of `8` and handled a `chunk_size` of `200`.
- **XLarge batch ranking** escalated concurrency with `max_workers` of `16` and handled a `chunk_size` of `500`.

This data shows RTN's robust capability to efficiently process both small and extensive datasets.

## Optimizing RTN Performance

The performance benchmarks provided give a glimpse into how RTN handles different loads, from parsing single titles to ranking thousands. For developers looking to integrate RTN into their applications efficiently, here are some tips on tweaking performance:

### 1. Adjusting Chunk Size for Batch Parsing
The `batch_parse` function allows you to parse titles in batches, significantly reducing processing time for large datasets. However, the optimal `chunk_size` can vary depending on the dataset size and your system's resources.

- For smaller datasets, a lower `chunk_size` might suffice, keeping overhead low.
- For larger datasets, increasing `chunk_size` can reduce the number of batches processed and potentially lower overall processing time.

Experiment with different `chunk_size` values to find the sweet spot for your particular use case.

### 2. Tuning Concurrency in Batch Ranking
The `batch_rank` function uses multiple threads to rank torrents in parallel, which can significantly speed up processing for large numbers of torrents.

- The default `max_workers` value is set to `4`, but this might not be optimal for all systems.
- Systems with higher CPU core counts might benefit from increasing `max_workers`, allowing more torrents to be processed simultaneously.
- However, setting `max_workers` too high can lead to diminishing returns and increased overhead. Monitor your system's resource utilization to find an optimal setting.

### 3. Leveraging ThreadPoolExecutor
Both `batch_parse` and `batch_rank` utilize `ThreadPoolExecutor` for parallel processing. Adjusting the `max_workers` parameter can help manage how many threads are used for these operations, impacting performance and resource utilization.

### 4. Custom Settings and Ranking Models
Customizing `SettingsModel` and `RankingModel` allows you to tailor the parsing and ranking criteria to your needs, potentially streamlining the processing by focusing only on relevant data.

- Evaluate which torrent attributes are essential for your application and adjust your settings model accordingly.
- Consider disabling unnecessary custom ranks or attributes in the ranking model to simplify the ranking process.

### Example: Tweaking Performance for Large Datasets

Suppose you're processing a dataset of 10,000 torrent titles. You might start with a default `chunk_size` of `50` and `max_workers` of `4`. Through experimentation, you find that increasing `chunk_size` to `500` and `max_workers` to `8` cuts your processing time in half.

```python
from RTN import RTN, SettingsModel, DefaultRanking, batch_parse

# Setup
settings = SettingsModel()
ranking_model = DefaultRanking()
rtn = RTN(settings=settings, ranking_model=ranking_model)

# Optimized batch parsing
optimized_titles = ["Title 1", "Title 2", ..., "Title 10000"]
parsed_data = batch_parse(optimized_titles, chunk_size=500, max_workers=8)
```

By monitoring performance and adjusting parameters based on your specific requirements and system capabilities, you can significantly enhance RTN's efficiency in your projects.

## Contributing

Contributions to RTN are welcomed! Feel free to submit pull requests or open issues to suggest features or report bugs. As we grow, more features will be coming to RTN, there's already a lot planned!

## License

RTN is released under the MIT License. See the LICENSE file for more details.

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