Files
ns2.0/backend/app/api/apps.py

332 lines
12 KiB
Python

from fastapi import APIRouter, Depends, HTTPException, Query
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select, func, and_, or_
from datetime import datetime, timedelta
from typing import Optional
from app.database import get_db
from app.models import AppInfo, AppMetrics, AppRating
from app.schemas import ApiResponse
router = APIRouter(prefix="/apps", tags=["应用"])
@router.get("/search")
async def search_apps(
q: str = Query(..., min_length=1),
page: int = Query(1, ge=1),
page_size: int = Query(20, le=100),
db: AsyncSession = Depends(get_db)
):
"""搜索应用"""
subquery = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.group_by(AppMetrics.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.outerjoin(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery, and_(
AppMetrics.app_id == subquery.c.app_id,
AppMetrics.created_at == subquery.c.max_created_at
))
.where(or_(
AppInfo.name.like(f"%{q}%"),
AppInfo.pkg_name.like(f"%{q}%"),
AppInfo.developer_name.like(f"%{q}%")
))
.order_by(AppMetrics.download_count.desc())
)
count_query = select(func.count(AppInfo.app_id)).where(or_(
AppInfo.name.like(f"%{q}%"),
AppInfo.pkg_name.like(f"%{q}%"),
AppInfo.developer_name.like(f"%{q}%")
))
total_result = await db.execute(count_query)
total = total_result.scalar()
offset = (page - 1) * page_size
query = query.offset(offset).limit(page_size)
result = await db.execute(query)
rows = result.all()
data = [{
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0,
"listed_at": row[0].listed_at.isoformat()
} for row in rows]
return ApiResponse(success=True, data=data, total=total, limit=page_size)
@router.get("/category/{category}")
async def get_apps_by_category(
category: str,
page: int = Query(1, ge=1),
page_size: int = Query(20, le=100),
db: AsyncSession = Depends(get_db)
):
"""按分类获取应用"""
subquery = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.group_by(AppMetrics.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.outerjoin(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery, and_(
AppMetrics.app_id == subquery.c.app_id,
AppMetrics.created_at == subquery.c.max_created_at
))
.where(AppInfo.kind_name == category)
.order_by(AppMetrics.download_count.desc())
)
count_query = select(func.count(AppInfo.app_id)).where(AppInfo.kind_name == category)
total_result = await db.execute(count_query)
total = total_result.scalar()
offset = (page - 1) * page_size
query = query.offset(offset).limit(page_size)
result = await db.execute(query)
rows = result.all()
data = [{
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0,
"listed_at": row[0].listed_at.isoformat()
} for row in rows]
return ApiResponse(success=True, data=data, total=total, limit=page_size)
@router.get("/categories")
async def get_categories(db: AsyncSession = Depends(get_db)):
"""获取所有分类"""
result = await db.execute(
select(AppInfo.kind_name, func.count(AppInfo.app_id).label('count'))
.group_by(AppInfo.kind_name)
.order_by(func.count(AppInfo.app_id).desc())
)
rows = result.all()
data = [{"name": row[0], "count": row[1]} for row in rows]
return ApiResponse(success=True, data=data)
@router.get("/today")
async def get_today_apps(
page_size: int = Query(20, le=100),
db: AsyncSession = Depends(get_db)
):
"""获取今日上架应用"""
today = datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
subquery = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.group_by(AppMetrics.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.outerjoin(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery, and_(
AppMetrics.app_id == subquery.c.app_id,
AppMetrics.created_at == subquery.c.max_created_at
))
.where(AppInfo.listed_at >= today)
.order_by(AppInfo.listed_at.desc())
.limit(page_size)
)
result = await db.execute(query)
rows = result.all()
data = [{
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0,
"listed_at": row[0].listed_at.isoformat()
} for row in rows]
return ApiResponse(success=True, data=data, total=len(data))
@router.get("/top-downloads")
async def get_top_downloads(
limit: int = Query(100, le=100),
db: AsyncSession = Depends(get_db)
):
"""热门应用Top100"""
subquery = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.group_by(AppMetrics.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.outerjoin(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery, and_(
AppMetrics.app_id == subquery.c.app_id,
AppMetrics.created_at == subquery.c.max_created_at
))
.order_by(AppMetrics.download_count.desc())
.limit(limit)
)
result = await db.execute(query)
rows = result.all()
data = [{
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0
} for row in rows]
return ApiResponse(success=True, data=data, total=len(data))
@router.get("/top-ratings")
async def get_top_ratings(
limit: int = Query(100, le=100),
db: AsyncSession = Depends(get_db)
):
"""评分Top100"""
subquery_metric = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.group_by(AppMetrics.app_id)
.subquery()
)
subquery_rating = (
select(AppRating.app_id, func.max(AppRating.created_at).label('max_created_at'))
.group_by(AppRating.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.join(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery_metric, and_(
AppMetrics.app_id == subquery_metric.c.app_id,
AppMetrics.created_at == subquery_metric.c.max_created_at
))
.join(subquery_rating, and_(
AppRating.app_id == subquery_rating.c.app_id,
AppRating.created_at == subquery_rating.c.max_created_at
))
.where(AppRating.total_rating_count >= 100)
.order_by(AppRating.average_rating.desc())
.limit(limit)
)
result = await db.execute(query)
rows = result.all()
data = [{
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0,
"total_rating_count": row[2].total_rating_count if len(row) > 2 and row[2] else 0
} for row in rows]
return ApiResponse(success=True, data=data, total=len(data))
@router.get("/{app_id}")
async def get_app_detail(app_id: str, db: AsyncSession = Depends(get_db)):
"""获取应用详情"""
subquery = (
select(AppMetrics.app_id, func.max(AppMetrics.created_at).label('max_created_at'))
.where(AppMetrics.app_id == app_id)
.group_by(AppMetrics.app_id)
.subquery()
)
query = (
select(AppInfo, AppMetrics, AppRating)
.join(AppMetrics, AppInfo.app_id == AppMetrics.app_id)
.outerjoin(AppRating, AppInfo.app_id == AppRating.app_id)
.join(subquery, and_(
AppMetrics.app_id == subquery.c.app_id,
AppMetrics.created_at == subquery.c.max_created_at
))
.where(AppInfo.app_id == app_id)
)
result = await db.execute(query)
row = result.first()
if not row:
raise HTTPException(status_code=404, detail="应用不存在")
data = {
"app_id": row[0].app_id,
"name": row[0].name,
"pkg_name": row[0].pkg_name,
"developer_name": row[0].developer_name,
"kind_name": row[0].kind_name,
"icon_url": row[0].icon_url,
"brief_desc": row[0].brief_desc,
"description": row[0].description,
"privacy_url": row[0].privacy_url,
"is_pay": row[0].is_pay,
"listed_at": row[0].listed_at.isoformat(),
"download_count": row[1].download_count if len(row) > 1 else 0,
"version": row[1].version if len(row) > 1 else "",
"size_bytes": row[1].size_bytes if len(row) > 1 else 0,
"average_rating": float(row[2].average_rating) if len(row) > 2 and row[2] else 0,
"total_rating_count": row[2].total_rating_count if len(row) > 2 and row[2] else 0,
"star_1_count": row[2].star_1_count if len(row) > 2 and row[2] else 0,
"star_2_count": row[2].star_2_count if len(row) > 2 and row[2] else 0,
"star_3_count": row[2].star_3_count if len(row) > 2 and row[2] else 0,
"star_4_count": row[2].star_4_count if len(row) > 2 and row[2] else 0,
"star_5_count": row[2].star_5_count if len(row) > 2 and row[2] else 0
}
return ApiResponse(success=True, data=data)