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#
#   http://www.apache.org/licenses/LICENSE-2.0
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from typing import List, NamedTuple

from marshmallow import Schema, fields
from marshmallow_sqlalchemy import SQLAlchemySchema, auto_field

from airflow.models.log import Log


class EventLogSchema(SQLAlchemySchema):
    """Event log schema"""

    class Meta:
        """Meta"""

        model = Log

    id = auto_field(data_key='event_log_id', dump_only=True)
    dttm = auto_field(data_key='when', dump_only=True)
    dag_id = auto_field(dump_only=True)
    task_id = auto_field(dump_only=True)
    event = auto_field(dump_only=True)
    execution_date = auto_field(dump_only=True)
    owner = auto_field(dump_only=True)
    extra = auto_field(dump_only=True)


class EventLogCollection(NamedTuple):
    """List of import errors with metadata"""

    event_logs: List[Log]
    total_entries: int


class EventLogCollectionSchema(Schema):
    """EventLog Collection Schema"""

    event_logs = fields.List(fields.Nested(EventLogSchema))
    total_entries = fields.Int()


event_log_schema = EventLogSchema()
event_log_collection_schema = EventLogCollectionSchema()
