Metadata-Version: 2.2
Name: talklib
Version: 3.2.1
Summary: A package to automate processing of shows/segments airing on the TL
Author-email: Ben Weddle <ben.weddle@gmail.com>
Maintainer-email: Ben Weddle <ben.weddle@gmail.com>
License: MIT License
        
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Project-URL: Repository, https://github.com/talkinglibrary/talklib
Project-URL: Issues, https://github.com/talkinglibrary/talklib/issues
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# talklib

![tests](https://github.com/Nashville-Public-Library/talklib/actions/workflows/talklib.yml/badge.svg)
[![GitHub issues](https://img.shields.io/github/issues/Nashville-Public-Library/talklib.png)](https://github.com/Nashville-Public-Library/talklib/issues)
[![last-commit](https://img.shields.io/github/last-commit/Nashville-Public-Library/talklib)](https://github.com/Nashville-Public-Library/talklib/commits/main)

## A package to automate processing TL shows/segments and podcasts

[talklib on PyPI](https://pypi.org/project/talklib/)

[Skip to Examples](#examples)

*THIS README IS INTENDED TO ASSIST TL STAFF IN INSTALLING AND USING THIS PACKAGE*

This package automates two categories of things: 
1. Shows/segments we receive from outside the TL
    - Shows and segments we receive via RSS feed
        - Shows such as New York Times, Wall Street Journal,  etc.
        - Segments such as Health in a Heartbeat, Academic Minute, etc.
    - Segments we receive via "permalink"
        - Such as PNS, Cirrus, etc.
    - Segments downloaded locally ahead of time
        - Such as Sound Beat, Animal Airwaves, etc.
2. TL Podcasts
---

## Requirements

### -[Python](https://www.python.org/downloads/)
Use Python 3.10 or higher.

Make sure to select "add to PATH" during installation.

### -[FFmpeg](https://www.ffmpeg.org/download.html#build-windows)
You need both FFmpeg & FFprobe installed on the PC and added to the PATH:

To repeat, **this package will not work without FFmpeg and FFprobe**. 

FFmpeg and FFprobe should be two separate binaries.

### -[Twilio](https://www.twilio.com/)
Twilio is used for SMS and phone call notifications.

THIS IS NOT SOMETHING YOU NEED TO DOWNLOAD/INSTALL.

Access our TL Twilio info (token, etc.) by [logging in](https://www.twilio.com/login) to Twilio.

See [below](#disable-twilio) for how to disable Twilio.

### -Environment Variables
This package uses Environment Variables to help with portability and keep sensitive info separated. The entire list of these is in the `ev.py` file. Make sure to set **all** of these on your PC(s). They are case-sensitive!

> **ONCE YOU SET/CHANGE/UPDATE ENVIRONMENT VARIABLES ON YOUR PC, YOU NEED TO RESTART WIREREADY**

---
## Installation

AFTER you have all of the above [requirements](#requirements), install the library:

- Open a terminal/command prompt
- ````bash
    pip install talklib
    ```` 
- Depending on your OS, instead of `pip` you may need to use `pip3`
- This will install the package globally. If you're a TL user just trying to install the package for everyday use, that's likely what you want to do. If you want to install it locally (for testing, etc.), see the [development](#development) section below.
- If you already have it installed and need to update it to the newest version, run `pip install --upgrade talklib`

---

## About WireReady

Before we begin, a general note:

### We run most of our Python scripts via WireReady (WR)
- The "Run" command in WR defaults to running from a different directory AND a different drive letter. This causes confusion.
- WR also does not run `.py` files by default. 
- These are some of the reasons why we do not run `.py` files directly from WR.
- Instead, we tell WR to run a Batch script (`.bat` file) which in turn will automatically run the Python script (`.py` file).
- Ensure the Batch & Python scripts are in the same directory.
- A sample `.bat` file (`Example.bat`) is included in the [misc](https://github.com/Nashville-Public-Library/misc/tree/main/talklib_examples) repo. 
    - Download this file and place it in the same folder as your Python file.
    - Right-Click the file > select `Properties` > select `Unblock` so that it can be executed.
    - It is a best practice to give the `.bat` and `.py` files the same name, though it is not necessary.
- PLEASE NOTE: the `.bat` file will run **all** Python files in the folder. This is one reason it is best to separate your Python files into different folders, each with its own `.bat` file.

Here is what an example directory structure should look like:
````
D:\wireready
    \Washington Post
        -WP.bat
        -WP.py
````
You would schedule WR to run the `WP.bat` file, which would automatically run the `WP.py` file.

----

## Outside Shows/Segments Usage

[Skip to Examples](#examples)

`TLShow` is the main class to use.

Import the class to your script like this:

````python
from talklib import TLShow
````

This is also fine:

````python
from talklib.show import TLShow
````

Create an instance like this: 

````python
example = TLShow()
````

----

## Available Attributes

### here is a list of all the attributes, along with their type and whether they are required.

`show`

*string*

required
- This is the name of the program
- Mostly used for notifications, etc.

`show_filename`

*string*

required

- the filename of the program
- do NOT include a trailing dash `-` OR a file extension `.wav`. use the base name only 

`url`

*string*

required for all RSS or permalink shows
- URL for the RSS feed OR the permalink
- ensure there is not a trailing forward slash `/` at the end of the URL
    - correct: 'https://somesite.org/wpfeed.rss'
    - incorrect: 'https://somesite.org/wpfeed.rss/'

`is_local`

*boolean*

*required* for "local" shows
- tells the module whether this is a local show
- must be set to `True` if it is a local show
- default is `False`

`local_file`

*string*

required for "local" shows
- path to the local file as such: `D:\path\to\the\show.wav`
- you will probably not have a hardcoded path here. Usually, you will be running a short algorithm to determine the path. Please see the [MISC](https://github.com/talkinglibrary/misc) repo for some examples.

`is_permalink`

*boolean*

required for "permalink" shows
- must be set to `True` for permalink shows
- default is `False`

`remove_yesterday`

*boolean*

optional
- whether or not you want to remove yesterday's files (if any exists)
- if set to `True`, it will delete any file matching the show_filename attribute you set.
- default is `False`. 

`include_date`

*boolean*

optional
- whether or not you want to include today's date in the filename
- if set to `True`, the date will be appended as such: `WP-MMDDYY.wav`
- if not set, or set to `False`, the resulting filename will be: `WP.wav`
- Generally, for TL programs, if it is a daily show, like the New York Times, etc., you need the date in the filename, as this is what WireReady will match.
- the default is `False`

`check_if_above` and `check_if_below`

*number*

optional
- these are for checking whether the length of the program (**in minutes!**) falls outside a range
- used strictly for notification purposes
- if these are not set, the checks will not be run
- again, these values are in **minutes**, not seconds
- currently, if you set one of these, you must set both of them. All or nothing.

`remove_source`

*boolean*

optional
- whether you want to remove/delete the original source file after processing
- applies only to local shows
- default is `False`

`notifications`

*object*

optional
- this is its own object with the following attributes: 
    - `enable_all`
    - `syslog_enable`
    - `twilio_enable`
    - `email_enable`
- to disable all notifications, set `enable_all` to false like this: `object.notifications.enable_all = False`
- to disable a particular one of these, set them like this: `object.notifications.twilio_enable = False`
- default for all of them is `True`
- more [examples](#examples) below

`ffmpeg`

*object*

- this is its own object with various attributes. The ones you might want to change are `breakaway` and `compression_level`
    - `breakaway`
        - if you only want to convert/output the audio file up to a certain point, set this to the number of seconds at which point you want it to stop.
        - change it like this: `object.ffmpeg.breakaway = 120`. This will cut the audio at 2 minutes.
        - again, this number is in seconds (not minutes)
        - perhaps the only time you need to set this is for shows like PNS where there is an expected "breakaway" time.
        - default is to convert the entire file

    - `compression_level`
        - sets the level for FFmpeg's compression/normalization
        - this is the EBU R128 LUFS "integrated loudness" standard
        - change it like this: `object.ffmpeg.compression_level = 18`
        - the smaller the number, the more compression is applied (17 is more compressed than 18)
        - the max is 5 (do not set to 1, 2, 3, or 4)!
        - be careful with this!
        - default is 21

## Examples<a id="examples"></a>
### RSS Example

The minimum attributes you must set are `show`, `show_filename`, and `url`.

Here is an example script:

````python
from talklib import TLShow

SD = TLShow()

SD.show = 'Skywalker Daily News'
SD.show_filename = 'SDN'
SD.url = 'https://somesite.org/sdn-feed.rss'

SD.run()
````
---
### Local Example

"Local" shows are shows whose files we already have downloaded ahead of time.

The minimum attributes you must set are: `show`, `show_filename`, `is_local`, and `local_file`. 

Here is an example script:

````python
from talklib import TLShow

MWB = TLShow()

MWB.show = 'Magical World of Bees'
MWB.show_filename = 'MWB'
MWB.is_local = True
MWB.local_file = 'D:Production\path\to\the\file.wav'

MWB.run()
````
----
### Permalink Example

"Permalink" shows are shows whose audio URL does not change, E.G. PNS & Cirrus

The minimum attributes you must set are: `show`, `show_filename`, `url`, and `is_permalink`.

Here is an example script:

````python
from talklib import TLShow

WK = TLShow()

WK.show = 'Who Knows'
WK.show_filename = 'WhoKnows'
WK.url = 'https://somesite.org/who-knows-static'
WK.is_permalink = True

WK.run()
````

### Misc. Examples

Here are some examples of how to access/modify certain attributes. 

### Disable Twilio<a id="disable-twilio"></a>

To disable Twilio notifications, simply add a line like this:

````python
from talklib import TLShow

SD = TLShow()

SD.show = 'Skywalker Daily News'
SD.show_filename = 'SDN'
SD.url = 'https://somesite.org/sdn-feed.rss'
SD.notifications.twilio_enable = False

SD.run()
````

### Disable Notifications

To disable ALL notifications, add a line like this:

> This will disable all notifications **including** syslog messages

````python
from talklib import TLShow

SD = TLShow()

SD.show = 'Skywalker Daily News'
SD.show_filename = 'SDN'
SD.url = 'https://somesite.org/sdn-feed.rss'
SD.notifications.enable_all = False

SD.run()
````

### Adjust FFmpeg compression

To adjust the level of compression applied with FFmppeg, add a line like this:

````python
from talklib import TLShow

SD = TLShow()

SD.show = 'Skywalker Daily News'
SD.show_filename = 'SDN'
SD.url = 'https://somesite.org/sdn-feed.rss'
SD.ffmpeg.compression_level = 18

SD.run()
````

## TL Podcasts Usage

### Prerequisites

Before starting to podcast a new show, you must log in to the server and create a directory. The directory should be named the same as the base name of the audio files for that show. For example, The Nashville Scene audio files are labelled as SceneMMDDYY. The directory name on the server should be `scene` in all lower-case.

You must also add two files to this directory: an RSS Feed and and an image.

The RSS feed should be named `feed.xml`. The image (the logo for the show) should be named `image.jpg`. You should update the template RSS feed file for each program. There are several default values such as Title that need to be changed. They are marked as such in the template.

### Scripts

`TLPod` is the main class to use. Import the class to your script like this:

````python
from talklib import TLPod
````

This is also fine:

````python
from talklib.pod import TLPod
````

## Examples<a id="pod_examples"></a>

````python
from talklib import TLPod

nyt = TLPod(
    display_name = "New York Times",
    filename_to_match = "nyt",
)
nyt.run()
````



The default number of episodes allowed in a podcast feed at any given time is 5. To change that:

````python
from talklib import TLPod

nyt = TLPod(
    display_name = "New York Times",
    filename_to_match = "nyt",
    max_episodes_in_feed = 7
)
nyt.run()
````

To disable ALL notifications, add a line like this:

> This will disable all notifications **including** syslog messages (shell print statements will not be disabled)

````python
from talklib import TLPod

nyt = TLPod(
    display_name = "New York Times",
    filename_to_match = "nyt",
)
nyt.notifications.notify.enable_all = False
nyt.run()
````

-----
## Development<a id="development"></a>

- Clone this repository
    ````bash
    git clone https://github.com/Nashville-Public-Library/talklib.git
    ````
- cd into the folder
    ````bash
    cd talklib
    ````
- Create a virtual environment
    ````bash
    python -m venv venv
    ````
    - depending on your OS, instead of `python`you may need to use `py` or `python3`
- Activate virtual environment
    - On Windows: 
    
    ````bash 
    venv\Scripts\activate
    ````
    - On Mac: 

    ````bash 
    source venv/bin/activate
    ````
- Update pip
     ````bash
     py -m pip install --upgrade pip
     ````
    - depending on your OS, instead of `pip` you may need to run `pip3`
- Install the package into your virtual environment
    ````bash
    pip install -e .
    ````
- Run Pytest
    ````bash
    pytest
    ````
    - to see code coverage, use this instead
    ````bash
    pytest --cov=talklib
    ````
    - The tests can take a while to run. Watch the terminal output for progress.
    - If the tests fail, you may have installed something incorrectly. 
    - You must be connected to the internet to run the tests

