language_directions.py

from helsinki_models import helsinki_models, get_clearly_formatted_langauge_directions
from iso639_wrapper import get_name_from_iso_code
from collections import OrderedDict
from utils import convert_keys_to_lowercase, match_in_keys, match_in_values


def get_all_source_languages():
    """
    Returns a human-readable `dict source_languages_names:codes` 
    based on the available models.
    """
    source_languages = {}
    language_directions = get_clearly_formatted_langauge_directions()

    for direction in language_directions:
        source_lang_code = direction.split('-')[0]
        source_language_name = get_name_from_iso_code(source_lang_code)
        if source_language_name:
            source_languages[source_language_name] = source_lang_code
    source_languages = OrderedDict(sorted(source_languages.items()))
    return source_languages

def get_target_languages(source_language_code):
    """
    Returns a human-readable `dict of target languages names to codes` 
    based on the available models and the source language passed.
    """
    target_languages = {}
    language_directions = get_clearly_formatted_langauge_directions()
    for direction in language_directions:
        if direction.startswith(f"{source_language_code}-"):
            target_language = direction.split('-')[1]  # Extracting the last part as the target language
            target_language_name = get_name_from_iso_code(target_language)
            if target_language_name:
                target_languages[target_language_name] = target_language
    return OrderedDict(sorted(target_languages.items())), source_language_code

# Example usage:
# all_source_languages = get_all_source_languages()
# print("All Source Languages:", all_source_languages)

# source_language_code = "pa"  # Replace with your desired source language
# target_languages = get_target_languages(source_language_code)
# print(f"Target Languages for {source_language_code}:", target_languages)