from typing import TYPE_CHECKING

from core_events import EventDeliveryStatus, EventPublishContract, EventRecordContract
from core_shared import JSONValue
from pydantic import BaseModel, Field

if TYPE_CHECKING:
    from app.db.models import EventRecord


class EventPublishRequest(EventPublishContract):
    pass


class EventRecordResponse(EventRecordContract):
    @classmethod
    def from_entity(cls, entity: "EventRecord") -> "EventRecordResponse":
        return cls.model_validate(entity, from_attributes=True)


class EventListRequest(BaseModel):
    event_type: str | None = None
    source_service: str | None = None
    aggregate_type: str | None = None
    aggregate_id: str | None = None
    correlation_id: str | None = None
    status: EventDeliveryStatus | None = None
    limit: int = Field(default=100, ge=1, le=500)


class EventDeliveryStatusUpdateRequest(BaseModel):
    status: EventDeliveryStatus
    last_error_message: str | None = None


class EventDeliveryStatusPostRequest(EventDeliveryStatusUpdateRequest):
    event_record_id: str


class PendingEventClaimRequest(BaseModel):
    limit: int = Field(default=100, ge=1, le=500)


class EventBatchPublishRequest(BaseModel):
    events: list[EventPublishRequest] = Field(default_factory=list, min_length=1, max_length=500)


class EventBatchPublishResponse(BaseModel):
    events: list[EventRecordResponse]
    count: int


class EventStatsResponse(BaseModel):
    counts_json: dict[str, JSONValue]