Files
Fulfillment-Backend/services/service.py

439 lines
20 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters

This file contains Unicode characters that might be confused with other characters. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

import lexorank
from lexorank import Bucket, middle
from sqlalchemy import select, update, insert, delete, desc
from sqlalchemy.exc import IntegrityError
from sqlalchemy.orm import joinedload
from enums.service import ServiceType
from models import Service, ServiceCategory, ServicePriceRange, ServicesKit, services_kit_services
from schemas.service import *
from services.base import BaseService
from utils.list_utils import previous_current_next
class ServiceService(BaseService):
async def get_all(self, with_placeholders: bool) -> ServiceGetAllResponse:
query = await (
self.session
.scalars(
select(
Service
)
.options(
joinedload(Service.category)
)
.order_by(
Service.rank
)
.filter(
Service.is_deleted == False
)
)
)
services_raw = query.all()
services = []
for service in services_raw:
services.append(ServiceSchema.model_validate(service))
if not with_placeholders:
return ServiceGetAllResponse(services=services)
category_ids = list(set([service.category_id for service in services_raw]))
rest_categories = await (
self.session
.scalars(
select(
ServiceCategory
)
.where(
ServiceCategory.id.notin_(category_ids),
ServiceCategory.is_deleted == False
)
)
)
for category in rest_categories:
for service_type in [ServiceType.DEAL_SERVICE, ServiceType.PRODUCT_SERVICE]:
services.append(ServiceSchema(
id=0,
name='Пусто',
category=ServiceCategorySchema.model_validate(category),
price=0,
service_type=service_type,
price_ranges=[],
cost=0,
rank='',
is_placeholder=True
))
return ServiceGetAllResponse(services=services)
async def get_latest_rank_in_category(self, category_id: int, service_type: ServiceType) -> str:
stmt = (
select(Service.rank)
.where(Service.category_id == category_id)
.where(Service.service_type == service_type)
.order_by(desc(Service.rank))
.limit(1)
)
return await self.session.scalar(stmt) or ''
async def create(self, request: ServiceCreateRequest) -> ServiceCreateResponse:
try:
raw_service = request.service
service_dict = raw_service.model_dump()
service_dict['category_id'] = raw_service.category.id
del service_dict['id']
del service_dict['category']
del service_dict['price_ranges']
del service_dict['is_placeholder']
service_type = ServiceType(raw_service.service_type)
category_id = raw_service.category.id
latest_rank = await self.get_latest_rank_in_category(category_id, service_type)
if not latest_rank:
latest_rank = middle(Bucket.BUCEKT_0)
else:
latest_rank = lexorank.parse(latest_rank)
service_rank = str(latest_rank.next())
service_dict['rank'] = service_rank
service = Service(**service_dict)
self.session.add(service)
await self.session.flush()
price_ranges = request.service.price_ranges
for price_range in price_ranges:
price_range_dict = price_range.model_dump()
price_range_dict['service_id'] = service.id
del price_range_dict['id']
price_range_obj = ServicePriceRange(**price_range_dict)
self.session.add(price_range_obj)
await self.session.commit()
return ServiceCreateResponse(ok=True, message="Услуга успешно создана")
except Exception as e:
return ServiceCreateResponse(ok=False, message=f"Неудалось создать услугу, ошибка: {e}")
async def update(self, request: ServiceUpdateRequest) -> ServiceUpdateResponse:
try:
raw_service = request.data
service = await (self.session.get(Service, raw_service.id))
if not service:
return ServiceUpdateResponse(ok=False, message="Услуга не найдена")
prev_category_id = service.category_id
new_category_id = request.data.category.id
service_dict = raw_service.dict()
service_dict['category_id'] = raw_service.category.id
del service_dict['category']
del service_dict['price_ranges']
del service_dict['is_placeholder']
if prev_category_id != new_category_id:
latest_rank = await self.get_latest_rank_in_category(new_category_id, ServiceType(raw_service.service_type))
if not latest_rank:
latest_rank = middle(Bucket.BUCEKT_0)
else:
latest_rank = lexorank.parse(latest_rank)
service_dict['rank'] = str(latest_rank.next())
await self.session.execute(
update(Service)
.where(Service.id == raw_service.id)
.values(**service_dict)
)
# checking if old price ranges are still in the request
request_price_range_ids = [price_range.id for price_range in raw_service.price_ranges if price_range.id]
price_ranges_to_delete = []
for price_range in service.price_ranges:
if price_range.id not in request_price_range_ids:
price_ranges_to_delete.append(price_range)
for price_range in price_ranges_to_delete:
await self.session.delete(price_range)
await self.session.flush()
for price_range in raw_service.price_ranges:
price_range_dict = price_range.dict()
price_range_dict['service_id'] = raw_service.id
if price_range.id:
await self.session.execute(
update(ServicePriceRange)
.where(ServicePriceRange.id == price_range.id)
.values(**price_range_dict)
)
else:
del price_range_dict['id']
price_range_obj = ServicePriceRange(**price_range_dict)
self.session.add(price_range_obj)
await self.session.commit()
return ServiceUpdateResponse(ok=True, message="Услуга успешно обновлена")
except Exception as e:
return ServiceUpdateResponse(ok=False, message=f"Неудалось обновить услугу, ошибка: {e}")
async def delete(self, request: ServiceDeleteRequest) -> ServiceDeleteResponse:
try:
service = await (self.session
.scalar(select(Service)
.filter(Service.id == request.service_id)))
if not service:
return ServiceDeleteResponse(ok=False, message="Услуга не найдена")
await self.session.delete(service)
await self.session.commit()
return ServiceDeleteResponse(ok=True, message="Услуга успешно удалена")
except IntegrityError:
await self.session.rollback()
service = await (self.session
.scalar(select(Service)
.filter(Service.id == request.service_id)))
service.is_deleted = True
await self.session.commit()
return ServiceDeleteResponse(ok=True, message="Услуга успешно удалена")
except Exception as e:
return ServiceDeleteResponse(ok=False, message=f"Неудалось удалить услугу, ошибка: {e}")
async def create_category(self, request: ServiceCreateCategoryRequest) -> ServiceCreateCategoryResponse:
try:
raw_category = request.category
category_dict = raw_category.model_dump()
del category_dict['id']
last_deal_service_rank = await self.session.scalar(
select(ServiceCategory.deal_service_rank)
.order_by(ServiceCategory.deal_service_rank.desc())
.limit(1)
)
last_product_service_rank = await self.session.scalar(
select(ServiceCategory.product_service_rank)
.order_by(ServiceCategory.product_service_rank.desc())
.limit(1)
)
last_product_service_rank = lexorank.parse(
last_product_service_rank) if last_product_service_rank else middle(
Bucket.BUCEKT_0)
last_deal_service_rank = lexorank.parse(last_deal_service_rank) if last_deal_service_rank else middle(
Bucket.BUCEKT_0)
last_deal_service_rank = last_deal_service_rank.next()
last_product_service_rank = last_product_service_rank.next()
category_dict['deal_service_rank'] = str(last_deal_service_rank)
category_dict['product_service_rank'] = str(last_product_service_rank)
category = ServiceCategory(**category_dict)
self.session.add(category)
await self.session.commit()
return ServiceCreateCategoryResponse(ok=True, message="Категория успешно создана")
except Exception as e:
return ServiceCreateCategoryResponse(ok=False, message=f"Неудалось создать категорию, ошибка: {e}")
async def get_all_categories(self) -> ServiceGetAllCategoriesResponse:
query = await (self.session
.scalars(select(ServiceCategory)
.order_by(ServiceCategory.id)))
categories = []
for category in query.all():
categories.append(ServiceCategorySchema.model_validate(category))
return ServiceGetAllCategoriesResponse(categories=categories)
async def get_kit_by_name(self, name: str) -> Optional[ServicesKit]:
return await self.session.scalar(select(ServicesKit).where(ServicesKit.name == name))
async def get_kit_by_id(self, kit_id: int) -> Optional[ServicesKit]:
return await self.session.scalar(select(ServicesKit).where(ServicesKit.id == kit_id))
async def get_all_kits(self) -> GetAllServicesKitsResponse:
stmt = (
select(
ServicesKit
)
.order_by(
ServicesKit.id.desc()
)
)
kits = (await self.session.scalars(stmt)).all()
kits_schemas = GetServiceKitSchema.from_orm_list(kits)
return GetAllServicesKitsResponse(services_kits=kits_schemas)
async def create_kit(self, request: CreateServicesKitRequest) -> CreateServicesKitResponse:
try:
if await self.get_kit_by_name(request.data.name):
return CreateServicesKitResponse(ok=False, message='Набор услуг с таким названием уже существует')
base_fields = request.data.model_dump_parent()
kit = ServicesKit(**base_fields)
self.session.add(kit)
await self.session.flush()
# Appending services
insert_data = []
for service_id in request.data.services_ids:
insert_data.append({
'service_id': service_id,
'services_kit_id': kit.id
})
if insert_data:
await self.session.execute(
insert(services_kit_services),
insert_data
)
await self.session.flush()
await self.session.commit()
return CreateServicesKitResponse(ok=True, message='Набор услуг успешно создан')
except Exception as e:
return CreateServicesKitResponse(ok=False, message=str(e))
async def update_kit(self, request: UpdateServicesKitRequest) -> UpdateServicesKitResponse:
try:
kit = await self.get_kit_by_id(request.data.id)
if not kit:
return UpdateServicesKitResponse(ok=False, message='Указанный набор услуг не существует')
base_fields = request.data.model_dump_parent()
stmt = update(ServicesKit).values(**base_fields).where(ServicesKit.id == request.data.id)
await self.session.execute(stmt)
await self.session.flush()
# Deleting previous services
stmt = (
delete(
services_kit_services
).where(
services_kit_services.c.services_kit_id == kit.id
)
)
await self.session.execute(stmt)
await self.session.flush()
insert_data = []
for service_id in request.data.services_ids:
insert_data.append({
'service_id': service_id,
'services_kit_id': kit.id
})
if insert_data:
await self.session.execute(
insert(services_kit_services),
insert_data
)
await self.session.flush()
await self.session.commit()
return UpdateServicesKitResponse(ok=True, message='Набор услуг успешно обновлен')
except Exception as e:
return UpdateServicesKitResponse(ok=False, message=str(e))
async def reorder(self, request: ServiceReorderRequest) -> ServiceReorderResponse:
try:
draining_service = await (self.session.get(Service, request.draining_service_id))
hovered_service = await (self.session.get(Service, request.hovered_service_id))
if not draining_service or not hovered_service:
return ServiceReorderResponse(ok=False, message="Услуга не найдена")
if draining_service.category_id == hovered_service.category_id:
temp = draining_service.rank
draining_service.rank = hovered_service.rank
hovered_service.rank = temp
else:
return ServiceReorderResponse(ok=False, message="Нельзя перемещать услуги между категориями")
await self.session.commit()
return ServiceReorderResponse(ok=True, message="Услуги успешно пересортированы")
except Exception as e:
return ServiceReorderResponse(ok=False, message=f"Неудалось найти услугу, ошибка: {e}")
async def reorder_category(self, request: ServiceCategoryReorderRequest) -> ServiceCategoryReorderResponse:
try:
if request.move_down and request.move_up:
return ServiceCategoryReorderResponse(ok=False,
message="Невозможно выполнить два действия одновременно")
if not request.move_down and not request.move_up:
return ServiceCategoryReorderResponse(ok=False, message="Не указано действие")
if request.service_type == ServiceType.DEAL_SERVICE:
order_by = ServiceCategory.deal_service_rank
rank_field = 'deal_service_rank'
else:
order_by = ServiceCategory.product_service_rank
rank_field = 'product_service_rank'
service_categories = await (
self.session
.scalars(select(ServiceCategory)
.order_by(order_by))
)
service_categories = service_categories.all()
for prv, cur, nxt in previous_current_next(service_categories):
if request.category_id == cur.id:
if request.move_down:
if nxt:
temp = getattr(cur, rank_field)
# cur.rank = nxt.rank
setattr(cur, rank_field, getattr(nxt, rank_field))
# nxt.rank = temp
setattr(nxt, rank_field, temp)
else:
return ServiceCategoryReorderResponse(ok=False, message="Невозможно переместить вниз")
elif request.move_up:
if prv:
temp = getattr(cur, rank_field)
# cur.rank = prv.rank
setattr(cur, rank_field, getattr(prv, rank_field))
# prv.rank = temp
setattr(prv, rank_field, temp)
else:
return ServiceCategoryReorderResponse(ok=False, message="Невозможно переместить вверх")
await self.session.commit()
return ServiceCategoryReorderResponse(ok=True, message="Категории успешно пересортированы")
except Exception as e:
return ServiceCategoryReorderResponse(ok=False, message=f"Неудалось пересортировать категорию, ошибка: {e}")
async def update_category(self, request: ServiceUpdateCategoryRequest) -> ServiceUpdateResponse:
try:
raw_category = request.category
category = await (self.session.get(ServiceCategory, raw_category.id))
if not category:
return ServiceUpdateResponse(ok=False, message="Категория не найдена")
category_dict = raw_category.dict()
del category_dict['id']
await self.session.execute(
update(ServiceCategory)
.where(ServiceCategory.id == raw_category.id)
.values(**category_dict)
)
await self.session.commit()
return ServiceUpdateResponse(ok=True, message="Категория успешно обновлена")
except Exception as e:
return ServiceUpdateResponse(ok=False, message=f"Неудалось обновить категорию, ошибка: {e}")
async def delete_category(self, request: ServiceDeleteCategoryRequest) -> ServiceDeleteResponse:
try:
active_services = await self.session.scalars(
select(
Service
)
.where(
Service.category_id == request.category_id,
Service.is_deleted == False
)
)
if active_services.first():
return ServiceDeleteResponse(ok=False, message="Категория используется в услугах")
# Check if category is used in deleted services
deleted_services = await self.session.scalars(
select(
Service
)
.where(
Service.category_id == request.category_id,
Service.is_deleted == True
)
)
category = await self.session.scalar(
select(
ServiceCategory
)
.filter(
ServiceCategory.id == request.category_id
)
)
if not category:
return ServiceDeleteResponse(ok=False, message="Категория не найдена")
if deleted_services.first():
category.is_deleted = True
else:
await self.session.delete(category)
await self.session.commit()
return ServiceDeleteResponse(ok=True, message="Категория успешно удалена")
except Exception as e:
return ServiceDeleteResponse(ok=False, message=f"Неудалось удалить категорию, ошибка: {e}")