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"""
版本管理、兼容推理及模型加载实现。
版本说明:
    1. 版本号与github的release版本号对应,使用哪个release版本训练的模型即对应其版本号
    2. 请在模型的config.json中显示声明版本号,添加一个字段"version" : "你的版本号"
特殊版本说明:
    1.1.1-fix: 1.1.1版本训练的模型,但是在推理时使用dev的日语修复
    2.3:当前版本
"""

import torch
import commons
from text import cleaned_text_to_sequence

# from clap_wrapper import get_clap_audio_feature, get_clap_text_feature
from typing import Union
from text.cleaner import clean_text
import utils

from models import SynthesizerTrn
from text.symbols import symbols

# from oldVersion.V220.models import SynthesizerTrn as V220SynthesizerTrn
# from oldVersion.V220.text import symbols as V220symbols
# from oldVersion.V210.models import SynthesizerTrn as V210SynthesizerTrn
# from oldVersion.V210.text import symbols as V210symbols
# from oldVersion.V200.models import SynthesizerTrn as V200SynthesizerTrn
# from oldVersion.V200.text import symbols as V200symbols
# from oldVersion.V111.models import SynthesizerTrn as V111SynthesizerTrn
# from oldVersion.V111.text import symbols as V111symbols
# from oldVersion.V110.models import SynthesizerTrn as V110SynthesizerTrn
# from oldVersion.V110.text import symbols as V110symbols
# from oldVersion.V101.models import SynthesizerTrn as V101SynthesizerTrn
# from oldVersion.V101.text import symbols as V101symbols
# 
# from oldVersion import V111, V110, V101, V200, V210, V220

# 当前版本信息
latest_version = "2.3"

# # 版本兼容
# SynthesizerTrnMap = {
#     "2.2": V220SynthesizerTrn,
#     "2.1": V210SynthesizerTrn,
#     "2.0.2-fix": V200SynthesizerTrn,
#     "2.0.1": V200SynthesizerTrn,
#     "2.0": V200SynthesizerTrn,
#     "1.1.1-fix": V111SynthesizerTrn,
#     "1.1.1": V111SynthesizerTrn,
#     "1.1": V110SynthesizerTrn,
#     "1.1.0": V110SynthesizerTrn,
#     "1.0.1": V101SynthesizerTrn,
#     "1.0": V101SynthesizerTrn,
#     "1.0.0": V101SynthesizerTrn,
# }
# 
# symbolsMap = {
#     "2.2": V220symbols,
#     "2.1": V210symbols,
#     "2.0.2-fix": V200symbols,
#     "2.0.1": V200symbols,
#     "2.0": V200symbols,
#     "1.1.1-fix": V111symbols,
#     "1.1.1": V111symbols,
#     "1.1": V110symbols,
#     "1.1.0": V110symbols,
#     "1.0.1": V101symbols,
#     "1.0": V101symbols,
#     "1.0.0": V101symbols,
# }


# def get_emo_(reference_audio, emotion, sid):
#     emo = (
#         torch.from_numpy(get_emo(reference_audio))
#         if reference_audio and emotion == -1
#         else torch.FloatTensor(
#             np.load(f"emo_clustering/{sid}/cluster_center_{emotion}.npy")
#         )
#     )
#     return emo


def get_net_g(model_path: str, device: str, hps):
    # 当前版本模型 net_g
    net_g = SynthesizerTrn(
        len(symbols),
        hps.data.filter_length // 2 + 1,
        hps.train.segment_size // hps.data.hop_length,
        n_speakers=hps.data.n_speakers,
        **hps.model,
    ).to(device)
    _ = net_g.eval()
    _ = utils.load_checkpoint(model_path, net_g, None, skip_optimizer=True)
    return net_g


def get_text(text, language_str, hps, device, style_text=None, style_weight=0.7):
    style_text = None if style_text == "" else style_text
    # 在此处实现当前版本的get_text
    norm_text, phone, tone, word2ph = clean_text(text, language_str)
    phone, tone, language = cleaned_text_to_sequence(phone, tone, language_str)

    if hps.data.add_blank:
        phone = commons.intersperse(phone, 0)
        tone = commons.intersperse(tone, 0)
        language = commons.intersperse(language, 0)
        for i in range(len(word2ph)):
            word2ph[i] = word2ph[i] * 2
        word2ph[0] += 1
    del word2ph

    phone = torch.LongTensor(phone)
    tone = torch.LongTensor(tone)
    language = torch.LongTensor(language)
    return phone, tone, language


def infer(
    text,
    emotion: Union[int, str],
    sdp_ratio,
    noise_scale,
    noise_scale_w,
    length_scale,
    sid,
    language,
    hps,
    net_g,
    device,
    reference_audio=None,
    skip_start=False,
    skip_end=False,
    style_text=None,
    style_weight=0.7,
):
    # 2.2版本参数位置变了
    # inferMap_V4 = {
    #     "2.2": V220.infer,
    # }
    # # 2.1 参数新增 emotion reference_audio skip_start skip_end
    # inferMap_V3 = {
    #     "2.1": V210.infer,
    # }
    # # 支持中日英三语版本
    # inferMap_V2 = {
    #     "2.0.2-fix": V200.infer,
    #     "2.0.1": V200.infer,
    #     "2.0": V200.infer,
    #     "1.1.1-fix": V111.infer_fix,
    #     "1.1.1": V111.infer,
    #     "1.1": V110.infer,
    #     "1.1.0": V110.infer,
    # }
    # # 仅支持中文版本
    # # 在测试中,并未发现两个版本的模型不能互相通用
    # inferMap_V1 = {
    #     "1.0.1": V101.infer,
    #     "1.0": V101.infer,
    #     "1.0.0": V101.infer,
    # }
    # version = hps.version if hasattr(hps, "version") else latest_version
    # 非当前版本,根据版本号选择合适的infer
    # if version != latest_version:
    #     if version in inferMap_V4.keys():
    #         return inferMap_V4[version](
    #             text,
    #             emotion,
    #             sdp_ratio,
    #             noise_scale,
    #             noise_scale_w,
    #             length_scale,
    #             sid,
    #             language,
    #             hps,
    #             net_g,
    #             device,
    #             reference_audio,
    #             skip_start,
    #             skip_end,
    #             style_text,
    #             style_weight,
    #         )
    #     if version in inferMap_V3.keys():
    #         return inferMap_V3[version](
    #             text,
    #             sdp_ratio,
    #             noise_scale,
    #             noise_scale_w,
    #             length_scale,
    #             sid,
    #             language,
    #             hps,
    #             net_g,
    #             device,
    #             reference_audio,
    #             emotion,
    #             skip_start,
    #             skip_end,
    #             style_text,
    #             style_weight,
    #         )
    #     if version in inferMap_V2.keys():
    #         return inferMap_V2[version](
    #             text,
    #             sdp_ratio,
    #             noise_scale,
    #             noise_scale_w,
    #             length_scale,
    #             sid,
    #             language,
    #             hps,
    #             net_g,
    #             device,
    #         )
    #     if version in inferMap_V1.keys():
    #         return inferMap_V1[version](
    #             text,
    #             sdp_ratio,
    #             noise_scale,
    #             noise_scale_w,
    #             length_scale,
    #             sid,
    #             hps,
    #             net_g,
    #             device,
    #         )
    # 在此处实现当前版本的推理
    # emo = get_emo_(reference_audio, emotion, sid)
    # if isinstance(reference_audio, np.ndarray):
    #     emo = get_clap_audio_feature(reference_audio, device)
    # else:
    #     emo = get_clap_text_feature(emotion, device)
    # emo = torch.squeeze(emo, dim=1)

    phones, tones, lang_ids = get_text(
        text,
        language,
        hps,
        device,
        style_text=style_text,
        style_weight=style_weight,
    )
    if skip_start:
        phones = phones[3:]
        tones = tones[3:]
        lang_ids = lang_ids[3:]
    if skip_end:
        phones = phones[:-2]
        tones = tones[:-2]
        lang_ids = lang_ids[:-2]
    with torch.no_grad():
        x_tst = phones.to(device).unsqueeze(0)
        tones = tones.to(device).unsqueeze(0)
        lang_ids = lang_ids.to(device).unsqueeze(0)
        x_tst_lengths = torch.LongTensor([phones.size(0)]).to(device)
        # emo = emo.to(device).unsqueeze(0)
        del phones
        speakers = torch.LongTensor([hps.data.spk2id[sid]]).to(device)
        audio = (
            net_g.infer(
                x_tst,
                x_tst_lengths,
                speakers,
                tones,
                lang_ids,
                sdp_ratio=sdp_ratio,
                noise_scale=noise_scale,
                noise_scale_w=noise_scale_w,
                length_scale=length_scale,
            )[0][0, 0]
            .data.cpu()
            .float()
            .numpy()
        )
        del (
            x_tst,
            tones,
            lang_ids,
            x_tst_lengths,
            speakers,
        )  # , emo
        if torch.cuda.is_available():
            torch.cuda.empty_cache()
        return audio


def infer_multilang(
    text,
    sdp_ratio,
    noise_scale,
    noise_scale_w,
    length_scale,
    sid,
    language,
    hps,
    net_g,
    device,
    reference_audio=None,
    emotion=None,
    skip_start=False,
    skip_end=False,
):
    phones, tones, lang_ids = [], [], [], [], [], [], []
    # emo = get_emo_(reference_audio, emotion, sid)
    # if isinstance(reference_audio, np.ndarray):
    #     emo = get_clap_audio_feature(reference_audio, device)
    # else:
    #     emo = get_clap_text_feature(emotion, device)
    # emo = torch.squeeze(emo, dim=1)
    for idx, (txt, lang) in enumerate(zip(text, language)):
        _skip_start = (idx != 0) or (skip_start and idx == 0)
        _skip_end = (idx != len(language) - 1) or skip_end
        (
            temp_phones,
            temp_tones,
            temp_lang_ids,
        ) = get_text(txt, lang, hps, device)
        if _skip_start:
            temp_phones = temp_phones[3:]
            temp_tones = temp_tones[3:]
            temp_lang_ids = temp_lang_ids[3:]
        if _skip_end:
            temp_phones = temp_phones[:-2]
            temp_tones = temp_tones[:-2]
            temp_lang_ids = temp_lang_ids[:-2]
        phones.append(temp_phones)
        tones.append(temp_tones)
        lang_ids.append(temp_lang_ids)
    phones = torch.concatenate(phones, dim=0)
    tones = torch.concatenate(tones, dim=0)
    lang_ids = torch.concatenate(lang_ids, dim=0)
    with torch.no_grad():
        x_tst = phones.to(device).unsqueeze(0)
        tones = tones.to(device).unsqueeze(0)
        lang_ids = lang_ids.to(device).unsqueeze(0)
        # emo = emo.to(device).unsqueeze(0)
        x_tst_lengths = torch.LongTensor([phones.size(0)]).to(device)
        del phones
        speakers = torch.LongTensor([hps.data.spk2id[sid]]).to(device)
        audio = (
            net_g.infer(
                x_tst,
                x_tst_lengths,
                speakers,
                tones,
                lang_ids,
                sdp_ratio=sdp_ratio,
                noise_scale=noise_scale,
                noise_scale_w=noise_scale_w,
                length_scale=length_scale,
            )[0][0, 0]
            .data.cpu()
            .float()
            .numpy()
        )
        del (
            x_tst,
            tones,
            lang_ids,
            x_tst_lengths,
            speakers,
        )  # , emo
        if torch.cuda.is_available():
            torch.cuda.empty_cache()
        return audio