"""Contract tests for resume editing API request and response models."""

from datetime import UTC, datetime

import pytest
from pydantic import ValidationError

from app.models import (
    ActionResponse,
    BusinessResume,
    OptimizeEntryRequest,
    OptimizeRequest,
    ResumePatchOperation,
    ResumePatchRequest,
    TimelineResponse,
)


def test_resume_patch_request_validates_revision_and_extra_fields() -> None:
    request = ResumePatchRequest(
        expected_revision=2,
        operation={"type": "update_entry", "entry_id": "entry_1", "fields": {"major": "AI"}},
    )
    assert request.operation.type == "update_entry"
    with pytest.raises(ValidationError):
        ResumePatchRequest(
            expected_revision=0,
            operation={"type": "delete_entry", "entry_id": "entry_1"},
        )
    with pytest.raises(ValidationError):
        ResumePatchOperation(type="delete_entry", entry_id="entry_1", unexpected=True)


def test_optimize_requests_require_entry_id() -> None:
    assert OptimizeRequest(entry_id="entry_1", instruction="更量化").entry_id == "entry_1"
    assert OptimizeEntryRequest(entry_id="entry_1").entry_id == "entry_1"
    with pytest.raises(ValidationError):
        OptimizeRequest(entry_id="")


def test_action_and_timeline_responses_expose_optional_resume_field() -> None:
    assert "resume" in ActionResponse.model_fields
    assert "resume" in TimelineResponse.model_fields
    assert ActionResponse.model_fields["resume"].default is None
    assert TimelineResponse.model_fields["resume"].default is None
    now = datetime.now(UTC)
    resume = BusinessResume(
        id="resume_1",
        session_id="session_1",
        revision=1,
        content={"schema_version": 2},
        created_at=now,
        updated_at=now,
    )
    assert resume.content["schema_version"] == 2