"""Tests for escalation routes and schemas (escalation_routes.py)."""

import pytest
from unittest.mock import MagicMock
from datetime import datetime

from compliance.api.escalation_routes import (
    EscalationCreate,
    EscalationUpdate,
    EscalationStatusUpdate,
    _row_to_dict,
)


# =============================================================================
# Schema Tests — EscalationCreate
# =============================================================================

class TestEscalationCreate:
    def test_minimal_valid(self):
        req = EscalationCreate(title="Test Eskalation")
        assert req.title == "Test Eskalation"
        assert req.priority == "medium"
        assert req.description is None
        assert req.category is None
        assert req.assignee is None

    def test_full_values(self):
        req = EscalationCreate(
            title="DSGVO-Verstoß",
            description="Datenleck entdeckt",
            priority="critical",
            category="dsgvo_breach",
            assignee="admin@example.com",
            reporter="user@example.com",
            source_module="incidents",
        )
        assert req.title == "DSGVO-Verstoß"
        assert req.priority == "critical"
        assert req.category == "dsgvo_breach"
        assert req.source_module == "incidents"

    def test_serialization(self):
        req = EscalationCreate(title="Test", priority="high")
        data = req.model_dump(exclude_none=True)
        assert data["title"] == "Test"
        assert data["priority"] == "high"
        assert "description" not in data


# =============================================================================
# Schema Tests — EscalationUpdate
# =============================================================================

class TestEscalationUpdate:
    def test_empty_update(self):
        req = EscalationUpdate()
        data = req.model_dump(exclude_none=True)
        assert data == {}

    def test_partial_update(self):
        req = EscalationUpdate(assignee="new@example.com", priority="low")
        data = req.model_dump(exclude_none=True)
        assert data == {"assignee": "new@example.com", "priority": "low"}

    def test_title_update(self):
        req = EscalationUpdate(title="Aktualisierter Titel")
        data = req.model_dump(exclude_none=True)
        assert data["title"] == "Aktualisierter Titel"
        assert "priority" not in data


# =============================================================================
# Schema Tests — EscalationStatusUpdate
# =============================================================================

class TestEscalationStatusUpdate:
    def test_status_only(self):
        req = EscalationStatusUpdate(status="in_progress")
        assert req.status == "in_progress"
        assert req.resolved_at is None

    def test_with_resolved_at(self):
        ts = datetime(2026, 3, 1, 12, 0, 0)
        req = EscalationStatusUpdate(status="resolved", resolved_at=ts)
        assert req.status == "resolved"
        assert req.resolved_at == ts

    def test_closed_status(self):
        req = EscalationStatusUpdate(status="closed")
        assert req.status == "closed"


# =============================================================================
# Helper Tests — _row_to_dict
# =============================================================================

class TestRowToDict:
    def test_basic_conversion(self):
        row = MagicMock()
        row._mapping = {"id": "abc-123", "title": "Test", "priority": "medium"}
        result = _row_to_dict(row)
        assert result["id"] == "abc-123"
        assert result["title"] == "Test"
        assert result["priority"] == "medium"

    def test_datetime_serialized(self):
        ts = datetime(2026, 3, 1, 10, 0, 0)
        row = MagicMock()
        row._mapping = {"id": "abc", "created_at": ts}
        result = _row_to_dict(row)
        assert result["created_at"] == ts.isoformat()

    def test_none_values_preserved(self):
        row = MagicMock()
        row._mapping = {"id": "abc", "description": None, "resolved_at": None}
        result = _row_to_dict(row)
        assert result["description"] is None
        assert result["resolved_at"] is None