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from nemo_text_processing.inverse_text_normalization.mr.graph_utils import GraphFst
from nemo_text_processing.inverse_text_normalization.mr.verbalizers.cardinal import CardinalFst
from nemo_text_processing.inverse_text_normalization.mr.verbalizers.date import DateFst
from nemo_text_processing.inverse_text_normalization.mr.verbalizers.decimal import DecimalFst
from nemo_text_processing.inverse_text_normalization.mr.verbalizers.time import TimeFst


class VerbalizeFst(GraphFst):
    """
    Composes other verbalizer grammars.
    For deployment, this grammar will be compiled and exported to OpenFst Finite State Archive (FAR) File.
    More details to deployment at NeMo/tools/text_processing_deployment.
    """

    def __init__(self):
        super().__init__(name="verbalize", kind="verbalize")
        cardinal_graph = CardinalFst().fst
        decimal_graph = DecimalFst().fst
        time_graph = TimeFst().fst
        date_graph = DateFst().fst
        graph = cardinal_graph | decimal_graph | time_graph | date_graph
        self.fst = graph