from typing import Sequence, Optional

from jsonmodels import validators
from jsonmodels.fields import StringField, BoolField
from jsonmodels.models import Base
from jsonmodels.validators import Length, Min, Max

from apimodels import ListField, IntField, ActualEnumField
from bll.event.event_metrics import EventType
from bll.event.scalar_key import ScalarKeyEnum


class HistogramRequestBase(Base):
    samples: int = IntField(default=6000, validators=[Min(1), Max(6000)])
    key: ScalarKeyEnum = ActualEnumField(ScalarKeyEnum, default=ScalarKeyEnum.iter)


class ScalarMetricsIterHistogramRequest(HistogramRequestBase):
    task: str = StringField(required=True)


class MultiTaskScalarMetricsIterHistogramRequest(HistogramRequestBase):
    tasks: Sequence[str] = ListField(
        items_types=str, validators=[Length(minimum_value=1, maximum_value=10)]
    )


class TaskMetric(Base):
    task: str = StringField(required=True)
    metric: str = StringField(required=True)


class DebugImagesRequest(Base):
    metrics: Sequence[TaskMetric] = ListField(
        items_types=TaskMetric, validators=[Length(minimum_value=1)]
    )
    iters: int = IntField(default=1, validators=validators.Min(1))
    navigate_earlier: bool = BoolField(default=True)
    refresh: bool = BoolField(default=False)
    scroll_id: str = StringField()


class LogEventsRequest(Base):
    task: str = StringField(required=True)
    batch_size: int = IntField(default=500)
    navigate_earlier: bool = BoolField(default=True)
    from_timestamp: Optional[int] = IntField()


class IterationEvents(Base):
    iter: int = IntField()
    events: Sequence[dict] = ListField(items_types=dict)


class MetricEvents(Base):
    task: str = StringField()
    metric: str = StringField()
    iterations: Sequence[IterationEvents] = ListField(items_types=IterationEvents)


class DebugImageResponse(Base):
    metrics: Sequence[MetricEvents] = ListField(items_types=MetricEvents)
    scroll_id: str = StringField()


class TaskMetricsRequest(Base):
    tasks: Sequence[str] = ListField(
        items_types=str, validators=[Length(minimum_value=1)]
    )
    event_type: EventType = ActualEnumField(EventType, required=True)