import glob
import os
import shutil

from tests import get_device_id, get_tests_output_path, run_cli
from TTS.tts.configs import BaseDatasetConfig, VitsConfig

config_path = os.path.join(get_tests_output_path(), "test_model_config.json")
output_path = os.path.join(get_tests_output_path(), "train_outputs")


dataset_config1 = BaseDatasetConfig(
    name="ljspeech", meta_file_train="metadata.csv", meta_file_val="metadata.csv", path="tests/data/ljspeech", language="en"
)

dataset_config2 = BaseDatasetConfig(
    name="ljspeech", meta_file_train="metadata.csv", meta_file_val="metadata.csv", path="tests/data/ljspeech", language="en2"
)

config = VitsConfig(
    batch_size=2,
    eval_batch_size=2,
    num_loader_workers=0,
    num_eval_loader_workers=0,
    text_cleaner="english_cleaners",
    use_phonemes=True,
    use_espeak_phonemes=True,
    phoneme_language="en-us",
    phoneme_cache_path="tests/data/ljspeech/phoneme_cache/",
    run_eval=True,
    test_delay_epochs=-1,
    epochs=1,
    print_step=1,
    print_eval=True,
    test_sentences=[
        ["Be a voice, not an echo.", "ljspeech", None, "en"],
        ["Be a voice, not an echo.", "ljspeech", None, "en2"],
    ],
    datasets=[dataset_config1, dataset_config2],
)
# set audio config
config.audio.do_trim_silence = True
config.audio.trim_db = 60

# active multilingual mode
config.model_args.use_language_embedding = True
# active multispeaker mode
config.model_args.use_speaker_embedding = True
config.model_args.use_d_vector_file = False
# active language sampler
config.use_language_weighted_sampler = True

config.save_json(config_path)

# train the model for one epoch
command_train = (
    f"CUDA_VISIBLE_DEVICES='{get_device_id()}' python TTS/bin/train_tts.py --config_path {config_path} "
    f"--coqpit.output_path {output_path} "
    "--coqpit.test_delay_epochs 0"
)
run_cli(command_train)

# Find latest folder
continue_path = max(glob.glob(os.path.join(output_path, "*/")), key=os.path.getmtime)

# restore the model and continue training for one more epoch
command_train = f"CUDA_VISIBLE_DEVICES='{get_device_id()}' python TTS/bin/train_tts.py --continue_path {continue_path} "
run_cli(command_train)
shutil.rmtree(continue_path)