Rank Torrent Name (RTN)

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

pip install rank-torrent-name

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

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.

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:

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

Ranking Torrents

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

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")

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

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

Sorting Torrents

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

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:

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:

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:

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.

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:

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:

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?

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!

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"

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