"""Tests for PoseService."""

import pytest
import asyncio
from unittest.mock import MagicMock, AsyncMock, patch
from datetime import datetime


class TestPoseServiceInit:
    def test_init_sets_defaults(self, mock_settings, mock_domain_config):
        with patch.dict("sys.modules", {
            "torch": MagicMock(),
            "src.models.densepose_head": MagicMock(),
            "src.models.modality_translation": MagicMock(),
        }):
            from src.services.pose_service import PoseService
            svc = PoseService(mock_settings, mock_domain_config)
            assert svc.is_initialized is False
            assert svc.is_running is False
            assert svc.stats["total_processed"] == 0

    def test_stats_are_zero_on_init(self, mock_settings, mock_domain_config):
        with patch.dict("sys.modules", {
            "torch": MagicMock(),
            "src.models.densepose_head": MagicMock(),
            "src.models.modality_translation": MagicMock(),
        }):
            from src.services.pose_service import PoseService
            svc = PoseService(mock_settings, mock_domain_config)
            assert svc.stats["successful_detections"] == 0
            assert svc.stats["failed_detections"] == 0
            assert svc.stats["average_confidence"] == 0.0


class TestPoseServiceLifecycle:
    @pytest.mark.asyncio
    async def test_initialize_sets_flag(self, mock_settings, mock_domain_config):
        with patch.dict("sys.modules", {
            "torch": MagicMock(),
            "src.models.densepose_head": MagicMock(),
            "src.models.modality_translation": MagicMock(),
        }):
            from src.services.pose_service import PoseService
            svc = PoseService(mock_settings, mock_domain_config)
            await svc.initialize()
            assert svc.is_initialized is True

    @pytest.mark.asyncio
    async def test_start_stop(self, mock_settings, mock_domain_config):
        with patch.dict("sys.modules", {
            "torch": MagicMock(),
            "src.models.densepose_head": MagicMock(),
            "src.models.modality_translation": MagicMock(),
        }):
            from src.services.pose_service import PoseService
            svc = PoseService(mock_settings, mock_domain_config)
            await svc.initialize()
            await svc.start()
            assert svc.is_running is True
            await svc.stop()
            assert svc.is_running is False


class TestPoseServiceStats:
    def test_initial_classification(self, mock_settings, mock_domain_config):
        with patch.dict("sys.modules", {
            "torch": MagicMock(),
            "src.models.densepose_head": MagicMock(),
            "src.models.modality_translation": MagicMock(),
        }):
            from src.services.pose_service import PoseService
            svc = PoseService(mock_settings, mock_domain_config)
            assert svc.last_error is None