1차완료

backend/main.py

@@ -542,22 +542,52 @@ def stats_top_chargers(limit: int = 10):
         db.close()
 
 
-@app.get("/api/stats/charger-error-codes")
-def stats_charger_error_codes(code_limit: int = 10):
-    """에러코드별 누적 건수 Top N (단순 순위)."""
+@app.get("/api/stats/top-stations")
+def stats_top_stations(limit: int = 10):
+    """충전소별 누적 고장 신고 건수 Top N."""
     from database import SessionLocal
     from sqlalchemy import text
     db = SessionLocal()
     try:
         rows = db.execute(text("""
-            SELECT TRIM(error_code) AS error_code, COUNT(*) AS cnt
+            SELECT COALESCE(c.station_name, rep.charger_id) AS station_name,
+                   COUNT(*) AS total,
+                   COUNT(*) FILTER (WHERE rep.status = 'done')  AS done_cnt,
+                   COUNT(*) FILTER (WHERE rep.status != 'done') AS active_cnt
+            FROM reports rep
+            LEFT JOIN chargers c ON c.id = rep.charger_id
+            GROUP BY COALESCE(c.station_name, rep.charger_id)
+            ORDER BY total DESC
+            LIMIT :lim
+        """), {"lim": limit}).fetchall()
+        return [
+            {
+                "station_name": row[0],
+                "total":  int(row[1]),
+                "done":   int(row[2]),
+                "active": int(row[3]),
+            }
+            for row in rows
+        ]
+    finally:
+        db.close()
+
+
+@app.get("/api/stats/charger-error-codes")
+def stats_charger_error_codes(code_limit: int = 10):
+    """에러코드별 누적 건수 Top N (에러코드 없음 포함)."""
+    from database import SessionLocal
+    from sqlalchemy import text
+    db = SessionLocal()
+    try:
+        rows = db.execute(text("""
+            SELECT COALESCE(NULLIF(TRIM(COALESCE(error_code, '')), ''), '에러코드 없음') AS error_code,
+                   COUNT(*) AS cnt
             FROM reports
-            WHERE error_code IS NOT NULL AND TRIM(error_code) != ''
-            GROUP BY TRIM(error_code)
+            GROUP BY COALESCE(NULLIF(TRIM(COALESCE(error_code, '')), ''), '에러코드 없음')
             ORDER BY cnt DESC
             LIMIT :limit
         """), {"limit": code_limit}).fetchall()
-        # 역순: 차트 Y축에서 1위가 맨 위
         result = [{"error_code": r[0], "total": int(r[1])} for r in reversed(rows)]
         return {"error_codes": result}
     finally: