import uuid
from datetime import datetime

from pydantic import BaseModel, ConfigDict

from app.models.enums import ChangeProposalOrigin, ChangeProposalStatus


class ProposalOperation(BaseModel):
    op: str  # create | update | delete
    entity_type: str  # person | name | event | relationship | source | citation
    entity_id: uuid.UUID | None = None
    payload: dict = {}


class ChangeProposalCreate(BaseModel):
    summary: str
    rationale: str | None = None
    origin: ChangeProposalOrigin = ChangeProposalOrigin.contributor
    operations: list[ProposalOperation]


class ProposalReview(BaseModel):
    note: str | None = None
    # Optional edited operations to apply instead of the original (approve-with-edits).
    operations: list[ProposalOperation] | None = None


class ChangeProposalRead(BaseModel):
    model_config = ConfigDict(from_attributes=True)

    id: uuid.UUID
    tree_id: uuid.UUID
    status: ChangeProposalStatus
    origin: ChangeProposalOrigin
    created_by_user_id: uuid.UUID | None
    summary: str
    rationale: str | None
    operations: list
    reviewed_by_user_id: uuid.UUID | None
    reviewed_at: datetime | None
    review_note: str | None
    apply_error: str | None
    created_at: datetime