#!/usr/bin/env python3
# -*- coding: utf-8 -*-

SOA_TOKEN = "[SOA]"
EOA_TOKEN = "[EOA]"
MASK_AUDIO_TOKEN = "[MASK_AUDIO]"


def audio_id_to_token(audio_id: int) -> str:
    return f"<AUDIO_{int(audio_id)}>"

def add_audio_special_tokens(tokenizer, num_audio_token: int) -> int:
    special_tokens = [audio_id_to_token(i) for i in range(num_audio_token)] + [
        MASK_AUDIO_TOKEN,
        SOA_TOKEN,
        EOA_TOKEN,
    ]
    return tokenizer.add_tokens(
        special_tokens,
        special_tokens=True,
    )