from typing import Literal, Dict

from mypy_boto3_mturk.literals import EventTypeType
from pydantic import BaseModel, Field

from jb.models.custom_types import AwareDatetimeISO, AMTBoto3ID


class MTurkEvent(BaseModel):
    """
    What AWS SNS will POST to our mturk_notifications endpoint (inside the request body)
    """

    event_type: EventTypeType = Field(example="AssignmentSubmitted")
    event_timestamp: AwareDatetimeISO = Field(example="2025-10-16T18:45:51Z")
    amt_hit_id: AMTBoto3ID = Field(example="12345678901234567890")
    amt_assignment_id: str = Field(
        max_length=64, example="1234567890123456789012345678901234567890"
    )
    amt_hit_type_id: AMTBoto3ID = Field(example="09876543210987654321")

    @classmethod
    def from_sns(cls, data: Dict):
        return cls.model_validate(
            {
                "event_type": data["EventType"],
                "event_timestamp": cls.fix_mturk_timestamp(data["EventTimestamp"]),
                "amt_hit_id": data["HITId"],
                "amt_assignment_id": data["AssignmentId"],
                "amt_hit_type_id": data["HITTypeId"],
            }
        )

    @staticmethod
    def fix_mturk_timestamp(ts: str) -> str:
        if ts.endswith("Z") and "." not in ts:
            ts = ts[:-1] + ".000Z"
        return ts