"""AutoGluon training binary. """

import argparse
import json
from typing import Any

from autogluon.tabular import TabularPredictor
import pandas as pd


class BaseConfig:

  def to_dict(self) -> dict[str, Any]:
    return {
        key: value for key, value in self.__dict__.items() if value is not None
    }


class DataConfig(BaseConfig):

  def __init__(self, train_data_path: Any) -> None:
    self.train_data_path = train_data_path


class ProblemConfig(BaseConfig):

  def __init__(self, label: Any, problem_type: Any) -> None:
    self.label = label
    self.problem_type = problem_type


class EvaluationConfig(BaseConfig):

  def __init__(self, eval_metric: Any) -> None:
    self.eval_metric = eval_metric


class TrainingConfig(BaseConfig):
  """Config for training."""

  def __init__(
      self,
      time_limit: Any,
      presets: Any,
      hyperparameters: Any,
      model_save_path: str,
  ) -> None:
    self.time_limit = time_limit
    self.hyperparameters = hyperparameters
    self.presets = presets
    self.model_save_path = model_save_path


def parse_args() -> (
    tuple[DataConfig, ProblemConfig, EvaluationConfig, TrainingConfig]
):
  """Parse command line arguments."""
  parser = argparse.ArgumentParser(description="AutoGluon Tabular Predictor")
  # Add arguments for each config class
  parser.add_argument(
      "--train_data_path",
      type=str,
      required=True,
      help="Path to the input data CSV file.",
  )
  parser.add_argument(
      "--label", type=str, required=True, help="Target variable column name."
  )
  parser.add_argument(
      "--problem_type",
      type=str,
      choices=["binary", "multiclass", "regression", "quantile"],
      default=None,
      help="Problem type.",
  )
  parser.add_argument(
      "--eval_metric", type=str, default=None, help="Evaluation metric to use."
  )
  # Add arguments for TrainingConfig if needed
  parser.add_argument(
      "--time_limit",
      type=int,
      default=None,
      help="Time limit in seconds for training.",
  )
  parser.add_argument(
      "--presets",
      type=str,
      default="medium_quality",
      help="Presets used for training ",
  )
  parser.add_argument(
      "--hyperparameters",
      type=json.loads,
      default=None,
      help="Hyperparameter dictionary in JSON format.",
  )
  parser.add_argument(
      "--model_save_path",
      type=str,
      default=None,
      help="Path to save the trained model.",
  )
  args = parser.parse_args()

  data_config = DataConfig(train_data_path=args.train_data_path)
  problem_config = ProblemConfig(
      label=args.label, problem_type=args.problem_type
  )
  eval_config = EvaluationConfig(eval_metric=args.eval_metric)
  training_config = TrainingConfig(
      time_limit=args.time_limit,
      presets=args.presets,
      hyperparameters=args.hyperparameters,
      model_save_path=args.model_save_path,
  )

  return data_config, problem_config, eval_config, training_config


def main() -> None:
  data_config, problem_config, eval_config, training_config = parse_args()

  # Load the training data.
  data = pd.read_csv(data_config.train_data_path)

  # Create a TabularPredictor.
  predictor = TabularPredictor(
      label=problem_config.label,
      eval_metric=eval_config.eval_metric,
      path=training_config.model_save_path,
  )

  # Fit the model
  predictor.fit(
      data,
      presets=training_config.presets,
      time_limit=training_config.time_limit,
      hyperparameters=training_config.hyperparameters,
  )


if __name__ == "__main__":
  main()