"""
资产管理服务层测试

测试内容:
- 资产创建业务逻辑
- 资产分配业务逻辑
- 状态机转换
- 权限验证
- 异常处理
"""

import pytest
from datetime import datetime
# from app.services.asset_service import AssetService
# from app.services.state_machine_service import StateMachineService
# from app.core.exceptions import BusinessException, NotFoundException


# class TestAssetService:
#     """测试资产管理服务"""
#
#     @pytest.fixture
#     def asset_service(self):
#         """创建AssetService实例"""
#         return AssetService()
#
#     def test_create_asset_generates_code(self, db, asset_service):
#         """测试创建资产时自动生成编码"""
#         asset_data = {
#             "asset_name": "测试资产",
#             "device_type_id": 1,
#             "organization_id": 1
#         }
#
#         asset = asset_service.create_asset(
#             db=db,
#             asset_in=AssetCreate(**asset_data),
#             creator_id=1
#         )
#
#         assert asset.asset_code is not None
#         assert asset.asset_code.startswith("ASSET-")
#         assert len(asset.asset_code) == 19  # ASSET-YYYYMMDD-XXXX
#
#     def test_create_asset_records_status_history(self, db, asset_service):
#         """测试创建资产时记录状态历史"""
#         asset_data = AssetCreate(
#             asset_name="测试资产",
#             device_type_id=1,
#             organization_id=1
#         )
#
#         asset = asset_service.create_asset(
#             db=db,
#             asset_in=asset_data,
#             creator_id=1
#         )
#
#         # 验证状态历史
#         history = db.query(AssetStatusHistory).filter(
#             AssetStatusHistory.asset_id == asset.id
#         ).all()
#
#         assert len(history) == 1
#         assert history[0].old_status is None
#         assert history[0].new_status == "pending"
#         assert history[0].operation_type == "create"
#
#     def test_create_asset_with_invalid_device_type(self, db, asset_service):
#         """测试使用无效设备类型创建资产"""
#         asset_data = AssetCreate(
#             asset_name="测试资产",
#             device_type_id=999999,  # 不存在的设备类型
#             organization_id=1
#         )
#
#         with pytest.raises(NotFoundException):
#             asset_service.create_asset(
#                 db=db,
#                 asset_in=asset_data,
#                 creator_id=1
#             )
#
#     def test_create_asset_with_invalid_organization(self, db, asset_service):
#         """测试使用无效网点创建资产"""
#         asset_data = AssetCreate(
#             asset_name="测试资产",
#             device_type_id=1,
#             organization_id=999999  # 不存在的网点
#         )
#
#         with pytest.raises(NotFoundException):
#             asset_service.create_asset(
#                 db=db,
#                 asset_in=asset_data,
#                 creator_id=1
#             )
#
#     def test_create_asset_validates_required_dynamic_fields(self, db, asset_service):
#         """测试验证必填的动态字段"""
#         # 假设计算机类型要求CPU和内存必填
#         asset_data = AssetCreate(
#             asset_name="测试计算机",
#             device_type_id=1,  # 计算机类型
#             organization_id=1,
#             dynamic_attributes={
#                 # 缺少必填的cpu和memory字段
#             }
#         )
#
#         with pytest.raises(BusinessException):
#             asset_service.create_asset(
#                 db=db,
#                 asset_in=asset_data,
#                 creator_id=1
#             )


# class TestAssetAllocation:
#     """测试资产分配"""
#
#     @pytest.fixture
#     def asset_service(self):
#         return AssetService()
#
#     def test_allocate_assets_success(self, db, asset_service, test_asset):
#         """测试成功分配资产"""
#         allocation_order = asset_service.allocate_assets(
#             db=db,
#             asset_ids=[test_asset.id],
#             organization_id=2,
#             operator_id=1
#         )
#
#         assert allocation_order is not None
#         assert allocation_order.order_type == "allocation"
#         assert allocation_order.asset_count == 1
#
#         # 验证资产状态未改变(等待审批)
#         db.refresh(test_asset)
#         assert test_asset.status == "in_stock"
#
#     def test_allocate_assets_invalid_status(self, db, asset_service):
#         """测试分配状态不正确的资产"""
#         # 创建一个使用中的资产
#         in_use_asset = Asset(
#             asset_code="ASSET-20250124-0002",
#             asset_name="使用中的资产",
#             device_type_id=1,
#             organization_id=1,
#             status="in_use"
#         )
#         db.add(in_use_asset)
#         db.commit()
#
#         with pytest.raises(BusinessException) as exc:
#             asset_service.allocate_assets(
#                 db=db,
#                 asset_ids=[in_use_asset.id],
#                 organization_id=2,
#                 operator_id=1
#             )
#
#         assert "当前状态不允许分配" in str(exc.value)
#
#     def test_allocate_assets_batch(self, db, asset_service):
#         """测试批量分配资产"""
#         # 创建多个资产
#         assets = []
#         for i in range(5):
#             asset = Asset(
#                 asset_code=f"ASSET-20250124-{i:04d}",
#                 asset_name=f"测试资产{i}",
#                 device_type_id=1,
#                 organization_id=1,
#                 status="in_stock"
#             )
#             db.add(asset)
#             assets.append(asset)
#         db.commit()
#
#         asset_ids = [a.id for a in assets]
#
#         allocation_order = asset_service.allocate_assets(
#             db=db,
#             asset_ids=asset_ids,
#             organization_id=2,
#             operator_id=1
#         )
#
#         assert allocation_order.asset_count == 5
#
#     def test_allocate_assets_to_same_organization(self, db, asset_service, test_asset):
#         """测试分配到当前所在网点"""
#         with pytest.raises(BusinessException):
#             asset_service.allocate_assets(
#                 db=db,
#                 asset_ids=[test_asset.id],
#                 organization_id=test_asset.organization_id,  # 相同网点
#                 operator_id=1
#             )
#
#     def test_allocate_duplicate_assets(self, db, asset_service):
#         """测试分配时包含重复资产"""
#         with pytest.raises(BusinessException):
#             asset_service.allocate_assets(
#                 db=db,
#                 asset_ids=[1, 1, 2],  # 资产ID重复
#                 organization_id=2,
#                 operator_id=1
#             )
#
#     def test_approve_allocation_order(self, db, asset_service):
#         """测试审批分配单"""
#         # 创建分配单
#         allocation_order = asset_service.allocate_assets(
#             db=db,
#             asset_ids=[1],
#             organization_id=2,
#             operator_id=1
#         )
#
#         # 审批通过
#         asset_service.approve_allocation_order(
#             db=db,
#             order_id=allocation_order.id,
#             approval_status="approved",
#             approver_id=2,
#             remark="同意"
#         )
#
#         # 验证资产状态已更新
#         asset = db.query(Asset).filter(Asset.id == 1).first()
#         assert asset.status == "in_use"
#
#         # 验证分配单执行状态
#         db.refresh(allocation_order)
#         assert allocation_order.approval_status == "approved"
#         assert allocation_order.execute_status == "completed"
#
#     def test_reject_allocation_order(self, db, asset_service):
#         """测试拒绝分配单"""
#         allocation_order = asset_service.allocate_assets(
#             db=db,
#             asset_ids=[1],
#             organization_id=2,
#             operator_id=1
#         )
#
#         # 审批拒绝
#         asset_service.approve_allocation_order(
#             db=db,
#             order_id=allocation_order.id,
#             approval_status="rejected",
#             approver_id=2,
#             remark="不符合条件"
#         )
#
#         # 验证资产状态未改变
#         asset = db.query(Asset).filter(Asset.id == 1).first()
#         assert asset.status == "in_stock"
#
#         db.refresh(allocation_order)
#         assert allocation_order.approval_status == "rejected"
#         assert allocation_order.execute_status == "cancelled"


# class TestStateMachine:
#     """测试状态机"""
#
#     @pytest.fixture
#     def state_machine(self):
#         return StateMachineService()
#
#     def test_valid_state_transitions(self, state_machine):
#         """测试有效的状态转换"""
#         valid_transitions = [
#             ("pending", "in_stock"),
#             ("in_stock", "in_use"),
#             ("in_stock", "maintenance"),
#             ("in_use", "transferring"),
#             ("in_use", "maintenance"),
#             ("maintenance", "in_stock"),
#             ("transferring", "in_use"),
#             ("in_use", "pending_scrap"),
#             ("pending_scrap", "scrapped"),
#         ]
#
#         for old_status, new_status in valid_transitions:
#             assert state_machine.can_transition(old_status, new_status) is True
#
#     def test_invalid_state_transitions(self, state_machine):
#         """测试无效的状态转换"""
#         invalid_transitions = [
#             ("pending", "in_use"),  # pending不能直接到in_use
#             ("in_stock", "pending"),  # 不能回退到pending
#             ("scrapped", "in_stock"),  # 报废后不能恢复
#             ("in_use", "pending_scrap"),  # 应该先transferring
#         ]
#
#         for old_status, new_status in invalid_transitions:
#             assert state_machine.can_transition(old_status, new_status) is False
#
#     def test_record_state_change(self, db, state_machine, test_asset):
#         """测试记录状态变更"""
#         state_machine.record_state_change(
#             db=db,
#             asset_id=test_asset.id,
#             old_status="in_stock",
#             new_status="in_use",
#             operator_id=1,
#             operation_type="allocate",
#             remark="资产分配"
#         )
#
#         history = db.query(AssetStatusHistory).filter(
#             AssetStatusHistory.asset_id == test_asset.id
#         ).first()
#
#         assert history is not None
#         assert history.old_status == "in_stock"
#         assert history.new_status == "in_use"
#         assert history.operation_type == "allocate"
#         assert history.remark == "资产分配"
#
#     def test_get_available_transitions(self, state_machine):
#         """测试获取可用的状态转换"""
#         transitions = state_machine.get_available_transitions("in_stock")
#
#         assert "in_use" in transitions
#         assert "maintenance" in transitions
#         assert "pending_scrap" not in transitions
#
#     def test_state_transition_with_invalid_permission(self, db, state_machine, test_asset):
#         """测试无权限的状态转换"""
#         # 普通用户不能直接报废资产
#         with pytest.raises(PermissionDeniedException):
#             state_machine.transition_state(
#                 db=db,
#                 asset_id=test_asset.id,
#                 new_status="scrapped",
#                 operator_id=999,  # 无权限的用户
#                 operation_type="scrap"
#             )


# class TestAssetStatistics:
#     """测试资产统计"""
#
#     @pytest.fixture
#     def asset_service(self):
#         return AssetService()
#
#     def test_get_asset_overview(self, db, asset_service):
#         """测试获取资产概览统计"""
#         # 创建测试数据
#         # ... 创建不同状态的资产
#
#         stats = asset_service.get_asset_overview(db)
#
#         assert stats["total_assets"] > 0
#         assert stats["total_value"] > 0
#         assert "assets_in_stock" in stats
#         assert "assets_in_use" in stats
#         assert "assets_maintenance" in stats
#         assert "assets_scrapped" in stats
#
#     def test_get_organization_distribution(self, db, asset_service):
#         """测试获取网点分布统计"""
#         distribution = asset_service.get_organization_distribution(db)
#
#         assert isinstance(distribution, list)
#         if len(distribution) > 0:
#             assert "org_name" in distribution[0]
#             assert "count" in distribution[0]
#             assert "value" in distribution[0]
#
#     def test_get_device_type_distribution(self, db, asset_service):
#         """测试获取设备类型分布统计"""
#         distribution = asset_service.get_device_type_distribution(db)
#
#         assert isinstance(distribution, list)
#         if len(distribution) > 0:
#             assert "type_name" in distribution[0]
#             assert "count" in distribution[0]
#
#     def test_get_value_trend(self, db, asset_service):
#         """测试获取价值趋势"""
#         trend = asset_service.get_value_trend(
#             db=db,
#             start_date="2024-01-01",
#             end_date="2024-12-31",
#             group_by="month"
#         )
#
#         assert isinstance(trend, list)
#         if len(trend) > 0:
#             assert "date" in trend[0]
#             assert "count" in trend[0]
#             assert "value" in trend[0]


# 性能测试
# class TestAssetServicePerformance:
#     """测试资产管理服务性能"""
#
#     @pytest.fixture
#     def asset_service(self):
#         return AssetService()
#
#     @pytest.mark.slow
#     def test_large_asset_list_query_performance(self, db, asset_service):
#         """测试大量资产查询性能"""
#         # 创建1000个资产
#         assets = []
#         for i in range(1000):
#             asset = Asset(
#                 asset_code=f"ASSET-20250124-{i:04d}",
#                 asset_name=f"测试资产{i}",
#                 device_type_id=1,
#                 organization_id=1,
#                 status="in_stock"
#             )
#             assets.append(asset)
#         db.bulk_save_objects(assets)
#         db.commit()
#
#         import time
#         start_time = time.time()
#
#         items, total = asset_service.get_assets(
#             db=db,
#             skip=0,
#             limit=20
#         )
#
#         elapsed_time = time.time() - start_time
#
#         assert len(items) == 20
#         assert total == 1000
#         assert elapsed_time < 0.5  # 查询应该在500ms内完成
#
#     @pytest.mark.slow
#     def test_batch_allocation_performance(self, db, asset_service):
#         """测试批量分配性能"""
#         # 创建100个资产
#         asset_ids = []
#         for i in range(100):
#             asset = Asset(
#                 asset_code=f"ASSET-20250124-{i:04d}",
#                 asset_name=f"测试资产{i}",
#                 device_type_id=1,
#                 organization_id=1,
#                 status="in_stock"
#             )
#             db.add(asset)
#             db.flush()
#             asset_ids.append(asset.id)
#         db.commit()
#
#         import time
#         start_time = time.time()
#
#         allocation_order = asset_service.allocate_assets(
#             db=db,
#             asset_ids=asset_ids,
#             organization_id=2,
#             operator_id=1
#         )
#
#         elapsed_time = time.time() - start_time
#
#         assert allocation_order.asset_count == 100
#         assert elapsed_time < 2.0  # 批量分配应该在2秒内完成
