Files
Fulfillment-Backend/services/statistics.py

403 lines
16 KiB
Python

from collections import defaultdict
from datetime import datetime, timedelta
from fastapi import HTTPException
from sqlalchemy import select, and_, union_all, func, Subquery
from enums.profit_table_group_by import ProfitTableGroupBy
from models import DealService, Deal, DealStatusHistory, DealProductService, DealProduct, Service, Client, \
ShippingWarehouse, BaseMarketplace
from schemas.statistics import GetProfitChartDataResponse, GetProfitChartDataRequest, ProfitChartDataItem, \
GetProfitTableDataResponse, GetProfitTableDataRequest, ProfitTableDataItem, CommonProfitFilters
from services.base import BaseService
class StatisticsService(BaseService):
@staticmethod
def _get_sub_deals_created_at(date_from: datetime.date, date_to: datetime.date):
return (
select(
Deal.id.label('deal_id'),
Deal.created_at.label('deal_date'),
Deal.current_status,
)
.where(Deal.created_at.between(date_from, date_to))
.subquery()
)
@staticmethod
def _get_sub_status_history():
last_statuses = (
select(
DealStatusHistory.deal_id,
func.max(DealStatusHistory.changed_at).label('changed_at')
)
.group_by(DealStatusHistory.deal_id)
.subquery()
)
return (
select(
Deal.id.label('deal_id'),
last_statuses.c.changed_at.label('deal_date'),
Deal.current_status,
)
.join(last_statuses, last_statuses.c.deal_id == Deal.id)
.subquery()
)
@staticmethod
def _get_filtered_sub_status_history(date_from: datetime.date, date_to: datetime.date):
sub_status_history = StatisticsService._get_sub_status_history()
return (
select(sub_status_history)
.where(sub_status_history.c.deal_date.between(date_from, date_to))
.subquery()
)
@staticmethod
def _get_deals_dates(deal_status_id: int, date_from: datetime.date, date_to: datetime.date):
if deal_status_id == -1:
return StatisticsService._get_sub_deals_created_at(date_from, date_to)
return StatisticsService._get_filtered_sub_status_history(date_from, date_to)
@staticmethod
def _fill_dates_gaps(rows, date_from: datetime.date, date_to: datetime.date, is_chart: bool = True) -> (
list[ProfitChartDataItem] | list[ProfitTableDataItem]
):
dates = defaultdict(lambda: {"deals_count": 0, "profit": 0, "revenue": 0})
for row in rows:
dates[row.deal_date.date()] = {
"deals_count": row.deals_count,
"profit": row.profit,
"revenue": row.revenue
}
data = []
while date_from < date_to:
if is_chart:
data_item = ProfitChartDataItem(
date=date_from,
deals_count=dates[date_from]["deals_count"],
profit=dates[date_from]["profit"],
revenue=dates[date_from]["revenue"],
)
else:
data_item = ProfitTableDataItem(
grouped_value=date_from,
deals_count=dates[date_from]["deals_count"],
profit=dates[date_from]["profit"],
revenue=dates[date_from]["revenue"],
)
data.append(data_item)
date_from += timedelta(days=1)
return data
@staticmethod
def _get_stmt_deal_services(sub_filtered_status_history: Subquery):
return (
select(
Deal.id.label("deal_id"),
func.date_trunc(
"day",
sub_filtered_status_history.c.deal_date,
).label("deal_date"),
func.sum(DealService.price * DealService.quantity).label("revenue"),
func.sum((DealService.price - Service.cost) * DealService.quantity).label("profit"),
)
.join(DealService, Deal.id == DealService.deal_id)
.join(Service, DealService.service_id == Service.id)
.join(sub_filtered_status_history, Deal.id == sub_filtered_status_history.c.deal_id)
.where(Deal.is_deleted == False)
.group_by(Deal.id, "deal_date")
)
@staticmethod
def _apply_chart_filters(request: CommonProfitFilters, stmt_deal_services, stmt_deal_product_services):
if request.client_id != -1:
stmt_deal_services = stmt_deal_services.where(Deal.client_id == request.client_id)
stmt_deal_product_services = stmt_deal_product_services.where(Deal.client_id == request.client_id)
if request.base_marketplace_key != "all":
stmt_deal_services = stmt_deal_services.where(Deal.base_marketplace_key == request.base_marketplace_key)
stmt_deal_product_services = stmt_deal_product_services.where(
Deal.base_marketplace_key == request.base_marketplace_key)
if request.deal_status_id != -1:
stmt_deal_services = stmt_deal_services.where(Deal.current_status == request.deal_status_id)
stmt_deal_product_services = stmt_deal_product_services.where(Deal.current_status == request.deal_status_id)
return stmt_deal_services, stmt_deal_product_services
@staticmethod
def _get_stmt_product_services():
return (
select(
Deal.id.label("deal_id"),
func.sum(DealProductService.price * DealProduct.quantity).label("revenue"),
func.sum((DealProductService.price - Service.cost) * DealProduct.quantity).label("profit"),
)
.join(DealProduct, Deal.id == DealProduct.deal_id)
.join(
DealProductService,
and_(
DealProductService.deal_id == Deal.id,
DealProductService.product_id == DealProduct.product_id,
)
)
.join(Service, DealProductService.service_id == Service.id)
.where(Deal.is_deleted == False)
.group_by(Deal.id)
)
@staticmethod
def _get_joined_deals_and_statuses(sub_deal_product_services: Subquery, sub_deals_dates: Subquery):
return (
select(
sub_deal_product_services.c.deal_id,
func.date_trunc(
"day",
sub_deals_dates.c.deal_date
).label("deal_date"),
sub_deal_product_services.c.revenue.label("revenue"),
sub_deal_product_services.c.profit.label("profit"),
)
.join(sub_deals_dates, sub_deal_product_services.c.deal_id == sub_deals_dates.c.deal_id)
)
@staticmethod
def _group_by_deals(stmt_union: Subquery):
return (
select(
stmt_union.c.deal_id,
stmt_union.c.deal_date,
func.sum(stmt_union.c.profit).label("profit"),
func.sum(stmt_union.c.revenue).label("revenue"),
)
.group_by(stmt_union.c.deal_id, stmt_union.c.deal_date)
)
@staticmethod
def _group_by_date(stmt):
return (
select(
stmt.c.deal_date,
func.count(stmt.c.deal_id).label("deals_count"),
func.sum(stmt.c.revenue).label("revenue"),
func.sum(stmt.c.profit).label("profit"),
)
.group_by(stmt.c.deal_date)
.order_by(stmt.c.deal_date.asc())
)
@staticmethod
def _join_and_group_by_clients(stmt):
return (
select(
Client.id,
Client.name.label("grouped_value"),
func.count(stmt.c.deal_id).label("deals_count"),
func.sum(stmt.c.revenue).label("revenue"),
func.sum(stmt.c.profit).label("profit"),
)
.join(Deal, Deal.id == stmt.c.deal_id)
.join(Client, Client.id == Deal.client_id)
.group_by(Client.id, Client.name)
)
@staticmethod
def _join_and_group_by_statuses(stmt):
return (
select(
Deal.current_status.label("grouped_value"),
func.count(stmt.c.deal_id).label("deals_count"),
func.sum(stmt.c.revenue).label("revenue"),
func.sum(stmt.c.profit).label("profit"),
)
.join(Deal, Deal.id == stmt.c.deal_id)
.group_by(Deal.current_status)
)
@staticmethod
def _join_and_group_by_warehouses(stmt):
return (
select(
ShippingWarehouse.id,
ShippingWarehouse.name.label("grouped_value"),
ShippingWarehouse.is_deleted,
func.count(stmt.c.deal_id).label("deals_count"),
func.sum(stmt.c.revenue).label("revenue"),
func.sum(stmt.c.profit).label("profit"),
)
.join(Deal, Deal.id == stmt.c.deal_id)
.join(ShippingWarehouse, Deal.shipping_warehouse_id == ShippingWarehouse.id)
.where(ShippingWarehouse.is_deleted == False)
.group_by(ShippingWarehouse.is_deleted, ShippingWarehouse.id, ShippingWarehouse.name)
)
@staticmethod
def _join_and_group_by_marketplaces(stmt):
return (
select(
BaseMarketplace.name.label("grouped_value"),
func.count(stmt.c.deal_id).label("deals_count"),
func.sum(stmt.c.revenue).label("revenue"),
func.sum(stmt.c.profit).label("profit"),
)
.join(Deal, Deal.id == stmt.c.deal_id)
.join(BaseMarketplace, Deal.base_marketplace_key == BaseMarketplace.key)
.group_by(BaseMarketplace.name)
)
async def _get_data_rows_grouped_by_date(
self,
stmt_deal_services,
stmt_deal_product_services,
sub_deals_dates: Subquery,
):
sub_deal_product_services = stmt_deal_product_services.subquery()
stmt_join_deals_statuses = self._get_joined_deals_and_statuses(sub_deal_product_services, sub_deals_dates)
sub_union = union_all(stmt_deal_services, stmt_join_deals_statuses).subquery()
sub_grouped_by_deals = self._group_by_deals(sub_union)
stmt_grouped_by_date = self._group_by_date(sub_grouped_by_deals)
result = await self.session.execute(stmt_grouped_by_date)
rows = result.all()
return rows
async def get_data_grouped_by_date(self, request: CommonProfitFilters, is_chart: bool = True):
date_from, date_to = request.date_range
date_to += timedelta(days=1)
sub_deals_dates = self._get_deals_dates(request.deal_status_id, date_from, date_to)
stmt_deal_services = self._get_stmt_deal_services(sub_deals_dates)
stmt_deal_product_services = self._get_stmt_product_services()
stmt_deal_services, stmt_deal_product_services = self._apply_chart_filters(
request,
stmt_deal_services,
stmt_deal_product_services
)
rows = await self._get_data_rows_grouped_by_date(
stmt_deal_services, stmt_deal_product_services, sub_deals_dates
)
return self._fill_dates_gaps(rows, date_from, date_to, is_chart)
async def get_profit_chart_data(self, request: GetProfitChartDataRequest) -> GetProfitChartDataResponse:
data = await self.get_data_grouped_by_date(request)
return GetProfitChartDataResponse(data=data)
async def _get_table_grouped_by_dates(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
data = await self.get_data_grouped_by_date(request, False)
return GetProfitTableDataResponse(data=data)
async def _table_data_from_stmt(self, stmt) -> GetProfitTableDataResponse:
result = await self.session.execute(stmt)
rows = result.all()
data = []
for row in rows:
data.append(ProfitTableDataItem(
grouped_value=row.grouped_value,
revenue=row.revenue,
profit=row.profit,
deals_count=row.deals_count,
))
return GetProfitTableDataResponse(data=data)
def _get_common_table_grouped(self, request: GetProfitTableDataRequest):
date_from, date_to = request.date_range
date_to += timedelta(days=1)
sub_deals_dates = self._get_deals_dates(request.deal_status_id, date_from, date_to)
stmt_deal_services = self._get_stmt_deal_services(sub_deals_dates)
stmt_deal_product_services = self._get_stmt_product_services()
stmt_deal_product_services = (
select(
stmt_deal_product_services.c.deal_id,
func.date_trunc(
"day",
Deal.created_at
).label("deal_date"),
stmt_deal_product_services.c.revenue.label("revenue"),
stmt_deal_product_services.c.profit.label("profit"),
)
.join(Deal, Deal.id == stmt_deal_product_services.c.deal_id)
)
stmt_deal_services, stmt_deal_product_services = self._apply_chart_filters(
request,
stmt_deal_services,
stmt_deal_product_services
)
sub_union = union_all(stmt_deal_services, stmt_deal_product_services).subquery()
sub_grouped_by_deals = self._group_by_deals(sub_union)
return sub_grouped_by_deals
async def _get_table_grouped_by_clients(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
sub_grouped_by_deals = self._get_common_table_grouped(request)
stmt_grouped_by_clients = self._join_and_group_by_clients(sub_grouped_by_deals)
return await self._table_data_from_stmt(stmt_grouped_by_clients)
async def _get_table_grouped_by_statuses(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
date_from, date_to = request.date_range
date_to += timedelta(days=1)
sub_deals_dates = self._get_filtered_sub_status_history(date_from, date_to)
stmt_deal_services = self._get_stmt_deal_services(sub_deals_dates)
stmt_deal_product_services = self._get_stmt_product_services()
stmt_deal_services, stmt_deal_product_services = self._apply_chart_filters(
request,
stmt_deal_services,
stmt_deal_product_services
)
stmt_join_deals_statuses = self._get_joined_deals_and_statuses(
stmt_deal_product_services.subquery(),
sub_deals_dates
)
sub_union = union_all(stmt_deal_services, stmt_join_deals_statuses).subquery()
sub_grouped_by_deals = self._group_by_deals(sub_union)
stmt_grouped_by_date = self._join_and_group_by_statuses(sub_grouped_by_deals)
return await self._table_data_from_stmt(stmt_grouped_by_date)
async def _get_table_grouped_by_warehouses(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
sub_grouped_by_deals = self._get_common_table_grouped(request)
stmt_grouped_by_clients = self._join_and_group_by_warehouses(sub_grouped_by_deals)
return await self._table_data_from_stmt(stmt_grouped_by_clients)
async def _get_table_grouped_by_marketplace(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
sub_grouped_by_deals = self._get_common_table_grouped(request)
stmt_grouped_by_clients = self._join_and_group_by_marketplaces(sub_grouped_by_deals)
return await self._table_data_from_stmt(stmt_grouped_by_clients)
async def get_profit_table_data(self, request: GetProfitTableDataRequest) -> GetProfitTableDataResponse:
match request.group_table_by:
case ProfitTableGroupBy.BY_DATES:
return await self._get_table_grouped_by_dates(request)
case ProfitTableGroupBy.BY_CLIENTS:
return await self._get_table_grouped_by_clients(request)
case ProfitTableGroupBy.BY_STATUSES:
return await self._get_table_grouped_by_statuses(request)
case ProfitTableGroupBy.BY_WAREHOUSES:
return await self._get_table_grouped_by_warehouses(request)
case ProfitTableGroupBy.BY_MARKETPLACES:
return await self._get_table_grouped_by_marketplace(request)
raise HTTPException(status_code=400, detail='Указана некорректная группировка')