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from datetime import datetime
from typing import List, Optional

from airflow.utils.pydantic import BaseModel as BaseModelPydantic, ConfigDict


class DagScheduleDatasetReferencePydantic(BaseModelPydantic):
    """Serializable version of the DagScheduleDatasetReference ORM SqlAlchemyModel used by internal API."""

    dataset_id: int
    dag_id: str
    created_at: datetime
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)


class TaskOutletDatasetReferencePydantic(BaseModelPydantic):
    """Serializable version of the TaskOutletDatasetReference ORM SqlAlchemyModel used by internal API."""

    dataset_id: int
    dag_id: str
    task_id: str
    created_at: datetime
    updated_at: datetime

    model_config = ConfigDict(from_attributes=True)


class DatasetPydantic(BaseModelPydantic):
    """Serializable representation of the Dataset ORM SqlAlchemyModel used by internal API."""

    id: int
    uri: str
    extra: Optional[dict]
    created_at: datetime
    updated_at: datetime
    is_orphaned: bool

    consuming_dags: List[DagScheduleDatasetReferencePydantic]
    producing_tasks: List[TaskOutletDatasetReferencePydantic]

    model_config = ConfigDict(from_attributes=True)


class DatasetEventPydantic(BaseModelPydantic):
    """Serializable representation of the DatasetEvent ORM SqlAlchemyModel used by internal API."""

    id: int
    dataset_id: Optional[int]
    extra: dict
    source_task_id: Optional[str]
    source_dag_id: Optional[str]
    source_run_id: Optional[str]
    source_map_index: Optional[int]
    timestamp: datetime
    dataset: Optional[DatasetPydantic]

    model_config = ConfigDict(from_attributes=True, arbitrary_types_allowed=True)