from dataclasses import dataclass
from typing import Optional

@dataclass
class DataIngestionArtifact:
    trained_file_path:str
    test_file_path:str

@dataclass
class DataValidationArtifact:
    validation_status:bool
    message:Optional[str]
    validation_report_file_path:str


@dataclass
class DataTransformationArtifact:
    transformed_object_file_path:str
    transformed_train_file_path:str
    transformed_test_file_path:str

@dataclass
class RegressionMetricArtifact:
    r2_score: float
    mse: float
    mae: float

@dataclass
class ModelTrainerArtifact:
    trained_model_file_path:str 
    metric_artifact:RegressionMetricArtifact


@dataclass
class RunTrainingArtifact:
    data_ingestion_artifact:DataIngestionArtifact
    data_validation_artifact:DataValidationArtifact
    data_transformed_artifact:DataTransformationArtifact
    model_trained_artifact:ModelTrainerArtifact