"""
训练算式识别模型 (LiteCRNN - math 模式)

用法: python -m training.train_math
"""

from config import (
    MATH_CHARS,
    IMAGE_SIZE,
    SYNTHETIC_MATH_DIR,
    REAL_MATH_DIR,
)
from generators.math_gen import MathCaptchaGenerator
from models.lite_crnn import LiteCRNN
from training.train_utils import train_ctc_model


def main():
    img_h, img_w = IMAGE_SIZE["math"]
    model = LiteCRNN(chars=MATH_CHARS, img_h=img_h, img_w=img_w)

    print("=" * 60)
    print("训练算式识别模型 (LiteCRNN - math)")
    print(f"  字符集: {MATH_CHARS}  ({len(MATH_CHARS)} 字符)")
    print(f"  输入尺寸: {img_h}×{img_w}")
    print("=" * 60)

    train_ctc_model(
        model_name="math",
        model=model,
        chars=MATH_CHARS,
        synthetic_dir=SYNTHETIC_MATH_DIR,
        real_dir=REAL_MATH_DIR,
        generator_cls=MathCaptchaGenerator,
        config_key="math",
    )


if __name__ == "__main__":
    main()