Files
superDreamFront/app/services/usage_service.py
2026-04-15 21:35:26 +08:00

140 lines
4.9 KiB
Python

from datetime import date, datetime, timedelta
from decimal import Decimal
from typing import Optional
from sqlalchemy import select, func, cast, Date
from sqlalchemy.ext.asyncio import AsyncSession
from app.models import UsageLog, ApiKey
class UsageService:
@staticmethod
async def summary(db: AsyncSession, user_id: str) -> dict:
today_start = datetime.combine(date.today(), datetime.min.time())
month_start = today_start.replace(day=1)
# Today
today_row = (await db.execute(
select(
func.coalesce(func.sum(UsageLog.total_tokens), 0),
func.coalesce(func.sum(UsageLog.cost), Decimal("0")),
).where(UsageLog.user_id == user_id, UsageLog.request_time >= today_start)
)).one()
# This month
month_row = (await db.execute(
select(
func.coalesce(func.sum(UsageLog.total_tokens), 0),
func.coalesce(func.sum(UsageLog.cost), Decimal("0")),
func.count(),
).where(UsageLog.user_id == user_id, UsageLog.request_time >= month_start)
)).one()
return {
"today_tokens": int(today_row[0]),
"today_cost": today_row[1],
"month_tokens": int(month_row[0]),
"month_cost": month_row[1],
"total_requests": int(month_row[2]),
}
@staticmethod
async def daily(
db: AsyncSession, user_id: str,
start: Optional[date] = None, end: Optional[date] = None,
) -> list:
if not start:
start = date.today() - timedelta(days=29)
if not end:
end = date.today()
day_col = cast(UsageLog.request_time, Date).label("day")
result = await db.execute(
select(
day_col,
func.coalesce(func.sum(UsageLog.total_tokens), 0),
func.coalesce(func.sum(UsageLog.cost), Decimal("0")),
func.count(),
)
.where(
UsageLog.user_id == user_id,
cast(UsageLog.request_time, Date) >= start,
cast(UsageLog.request_time, Date) <= end,
)
.group_by(day_col)
.order_by(day_col)
)
return [
{"date": row[0], "total_tokens": int(row[1]), "cost": row[2], "requests": int(row[3])}
for row in result.all()
]
@staticmethod
async def by_model(db: AsyncSession, user_id: str) -> list:
result = await db.execute(
select(
UsageLog.model,
func.coalesce(func.sum(UsageLog.total_tokens), 0),
func.coalesce(func.sum(UsageLog.cost), Decimal("0")),
func.count(),
)
.where(UsageLog.user_id == user_id)
.group_by(UsageLog.model)
.order_by(func.sum(UsageLog.cost).desc())
)
return [
{"model": row[0], "total_tokens": int(row[1]), "cost": row[2], "requests": int(row[3])}
for row in result.all()
]
@staticmethod
async def by_key(db: AsyncSession, user_id: str) -> list:
result = await db.execute(
select(
UsageLog.key_id,
ApiKey.name,
ApiKey.key_prefix,
ApiKey.key_suffix,
func.coalesce(func.sum(UsageLog.total_tokens), 0),
func.coalesce(func.sum(UsageLog.cost), Decimal("0")),
func.count(),
)
.join(ApiKey, UsageLog.key_id == ApiKey.id)
.where(UsageLog.user_id == user_id)
.group_by(UsageLog.key_id, ApiKey.name, ApiKey.key_prefix, ApiKey.key_suffix)
.order_by(func.sum(UsageLog.cost).desc())
)
return [
{
"key_id": row[0], "key_name": row[1] or "",
"key_prefix": row[2], "key_suffix": row[3],
"total_tokens": int(row[4]), "cost": row[5], "requests": int(row[6]),
}
for row in result.all()
]
@staticmethod
async def logs(
db: AsyncSession, user_id: str,
page: int = 1, size: int = 20,
model: Optional[str] = None,
key_id: Optional[str] = None,
start: Optional[date] = None,
end: Optional[date] = None,
) -> list:
q = select(UsageLog).where(UsageLog.user_id == user_id)
if model:
q = q.where(UsageLog.model == model)
if key_id:
q = q.where(UsageLog.key_id == key_id)
if start:
q = q.where(UsageLog.request_time >= datetime.combine(start, datetime.min.time()))
if end:
q = q.where(UsageLog.request_time < datetime.combine(end + timedelta(days=1), datetime.min.time()))
q = q.order_by(UsageLog.request_time.desc()).offset((page - 1) * size).limit(size)
result = await db.execute(q)
return result.scalars().all()