from typing import Optional
from thinc.api import Model
from .stop_words import STOP_WORDS
from .lex_attrs import LEX_ATTRS
from .tokenizer_exceptions import TOKENIZER_EXCEPTIONS
from .punctuation import TOKENIZER_SUFFIXES
from .syntax_iterators import SYNTAX_ITERATORS
from ...language import Language
from ...lookups import Lookups
from ...pipeline import Lemmatizer


class PersianDefaults(Language.Defaults):
    tokenizer_exceptions = TOKENIZER_EXCEPTIONS
    suffixes = TOKENIZER_SUFFIXES
    lex_attr_getters = LEX_ATTRS
    syntax_iterators = SYNTAX_ITERATORS
    stop_words = STOP_WORDS
    writing_system = {"direction": "rtl", "has_case": False, "has_letters": True}


class Persian(Language):
    lang = "fa"
    Defaults = PersianDefaults


@Persian.factory(
    "lemmatizer",
    assigns=["token.lemma"],
    default_config={"model": None, "mode": "rule", "lookups": None},
    default_score_weights={"lemma_acc": 1.0},
)
def make_lemmatizer(
    nlp: Language,
    model: Optional[Model],
    name: str,
    mode: str,
    lookups: Optional[Lookups],
):
    lookups = Lemmatizer.load_lookups(nlp.lang, mode, lookups)
    return Lemmatizer(nlp.vocab, model, name, mode=mode, lookups=lookups)


__all__ = ["Persian"]