EV 충전 플랫폼 초기 백업

app/routers/dashboard.py

@@ -0,0 +1,131 @@
+"""대시보드 API — 관리자 모니터링"""
+
+from datetime import datetime, timezone, timedelta
+
+from fastapi import APIRouter, Depends
+from sqlalchemy import select, func, and_, extract
+from sqlalchemy.ext.asyncio import AsyncSession
+
+from app.database import get_db
+from app.models import Charger, ChargingSession, ChargerStatus, SessionStatus
+from app.schemas import DashboardSummary
+
+router = APIRouter(prefix="/dashboard", tags=["대시보드"])
+
+
+@router.get("/summary", response_model=DashboardSummary)
+async def get_summary(db: AsyncSession = Depends(get_db)):
+    """대시보드 요약 — 오늘/이번달 충전 현황"""
+    now = datetime.now(timezone.utc)
+    today_start = now.replace(hour=0, minute=0, second=0, microsecond=0)
+    month_start = now.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
+
+    # 충전기 통계
+    chargers = await db.execute(select(Charger).where(Charger.is_active == True))
+    charger_list = chargers.scalars().all()
+    total = len(charger_list)
+    active = sum(1 for c in charger_list if c.status != ChargerStatus.UNAVAILABLE)
+    charging = sum(1 for c in charger_list if c.status == ChargerStatus.CHARGING)
+
+    # 오늘 세션
+    today_q = await db.execute(
+        select(
+            func.count(ChargingSession.id),
+            func.coalesce(func.sum(ChargingSession.total_bill), 0),
+            func.coalesce(func.sum(ChargingSession.charged_wh), 0),
+        ).where(
+            and_(
+                ChargingSession.status == SessionStatus.COMPLETED,
+                ChargingSession.created_at >= today_start,
+            )
+        )
+    )
+    today_row = today_q.one()
+
+    # 이번달 세션
+    month_q = await db.execute(
+        select(
+            func.coalesce(func.sum(ChargingSession.total_bill), 0),
+            func.coalesce(func.sum(ChargingSession.charged_wh), 0),
+        ).where(
+            and_(
+                ChargingSession.status == SessionStatus.COMPLETED,
+                ChargingSession.created_at >= month_start,
+            )
+        )
+    )
+    month_row = month_q.one()
+
+    return DashboardSummary(
+        total_chargers=total,
+        active_chargers=active,
+        charging_now=charging,
+        today_sessions=today_row[0],
+        today_revenue=today_row[1],
+        today_kwh=round(today_row[2] / 1000, 2),
+        month_revenue=month_row[0],
+        month_kwh=round(month_row[1] / 1000, 2),
+    )
+
+
+@router.get("/recent-sessions")
+async def recent_sessions(
+    limit: int = 20,
+    db: AsyncSession = Depends(get_db),
+):
+    """최근 충전 세션 목록"""
+    result = await db.execute(
+        select(ChargingSession)
+        .order_by(ChargingSession.created_at.desc())
+        .limit(limit)
+    )
+    sessions = result.scalars().all()
+
+    return [
+        {
+            "session_uid": s.session_uid,
+            "charger_id": s.charger_id,
+            "status": s.status,
+            "charged_kwh": round(s.charged_wh / 1000, 2) if s.charged_wh else 0,
+            "total_bill": s.total_bill,
+            "started_at": s.started_at,
+            "stopped_at": s.stopped_at,
+        }
+        for s in sessions
+    ]
+
+
+@router.get("/daily-stats")
+async def daily_stats(
+    days: int = 30,
+    db: AsyncSession = Depends(get_db),
+):
+    """일별 충전 통계 (최근 N일)"""
+    cutoff = datetime.now(timezone.utc) - timedelta(days=days)
+
+    result = await db.execute(
+        select(
+            func.date(ChargingSession.created_at).label("date"),
+            func.count(ChargingSession.id).label("sessions"),
+            func.coalesce(func.sum(ChargingSession.total_bill), 0).label("revenue"),
+            func.coalesce(func.sum(ChargingSession.charged_wh), 0).label("wh"),
+        )
+        .where(
+            and_(
+                ChargingSession.status == SessionStatus.COMPLETED,
+                ChargingSession.created_at >= cutoff,
+            )
+        )
+        .group_by(func.date(ChargingSession.created_at))
+        .order_by(func.date(ChargingSession.created_at))
+    )
+
+    return [
+        {
+            "date": str(row.date),
+            "sessions": row.sessions,
+            "revenue": row.revenue,
+            "kwh": round(row.wh / 1000, 2),
+        }
+        for row in result.all()
+    ]