from datetime import datetime
from typing import TYPE_CHECKING

from core_domain import ScheduledJobContract, ScheduledJobStatus, ScheduledJobType
from core_shared import JSONValue
from pydantic import BaseModel, Field

if TYPE_CHECKING:
    from app.db.models import ScheduledJob


class ScheduledJobCreateRequest(BaseModel):
    job_type: ScheduledJobType
    name: str
    description: str | None = None
    target_service: str | None = None
    target_url: str | None = None
    method: str | None = None
    payload_json: dict[str, JSONValue] = Field(default_factory=dict)
    schedule_time: datetime
    max_attempts: int = Field(default=3, ge=1, le=20)
    metadata_json: dict[str, JSONValue] = Field(default_factory=dict)


class ScheduledJobResponse(ScheduledJobContract):
    @classmethod
    def from_entity(cls, entity: "ScheduledJob") -> "ScheduledJobResponse":
        return cls.model_validate(entity, from_attributes=True)


class ScheduledJobStatusUpdateRequest(BaseModel):
    status: ScheduledJobStatus
    last_error_message: str | None = None


class DueJobClaimRequest(BaseModel):
    worker_key: str
    lease_seconds: int = Field(default=300, ge=1, le=86400)
    limit: int = Field(default=50, ge=1, le=500)
    now_time: datetime | None = None