fix(admin): 区分领券广告收益未填充与零收益 (#148)

## 修改内容
- 无 eCPM 填充记录时，领券数据接口返回 null
- 已填充但收益为 0 时保留 0.0
- 补充未填充与零收益的回归测试

## 验证
- 后端定向测试：7 passed
- Ruff 检查通过
- 线上近 30 天 740 条领券记录中，647 条无对应 eCPM 填充记录

---------

Co-authored-by: unknown <798648091@qq.com>
Reviewed-on: #148
Co-authored-by: linkeyu <linkeyu@wonderable.ai>
Co-committed-by: linkeyu <linkeyu@wonderable.ai>

app/admin/repositories/coupon_data.py

@@ -86,7 +86,12 @@ def _success_rates(rows: list) -> dict:
     }
 
 
-def _session_to_row(r, phone: str | None = None, nickname: str | None = None, ad_revenue_yuan: float = 0.0) -> dict:
+def _session_to_row(
+    r,
+    phone: str | None = None,
+    nickname: str | None = None,
+    ad_revenue_yuan: float | None = None,
+) -> dict:
     """CouponSession ORM → 明细行 dict(主表「领券数据」与「用户全部领券」抽屉共用)。"""
     return {
         "id": r.id,
@@ -252,7 +257,7 @@ def coupon_data_report(
     items = []
     for r in page:
         phone, nickname = user_map.get(r.user_id, (None, None)) if r.user_id is not None else (None, None)
-        items.append(_session_to_row(r, phone, nickname, ad_revenue_yuan=rev_map.get(r.trace_id, 0.0)))
+        items.append(_session_to_row(r, phone, nickname, ad_revenue_yuan=rev_map.get(r.trace_id)))
 
     return {
         "summary": summary,
@@ -276,7 +281,7 @@ def coupon_user_records(db: Session, *, user_id: int, limit: int = 100) -> dict:
     ).scalar_one()
     rev_map = crud_ecpm.revenue_yuan_by_trace(db, [r.trace_id for r in rows])
     return {
-        "items": [_session_to_row(r, ad_revenue_yuan=rev_map.get(r.trace_id, 0.0)) for r in rows],
+        "items": [_session_to_row(r, ad_revenue_yuan=rev_map.get(r.trace_id)) for r in rows],
         "total": int(total),
     }
 

app/admin/repositories/stats.py

@@ -7,7 +7,7 @@ from __future__ import annotations
 
 from collections import Counter
 from datetime import date, datetime, time, timedelta, timezone
-from decimal import Decimal, InvalidOperation
+from decimal import ROUND_HALF_UP, Decimal, InvalidOperation
 
 from sqlalchemy import case, func, select
 from sqlalchemy.orm import Session
@@ -109,6 +109,23 @@ def _date_range(date_from: date, date_to: date) -> list[date]:
     return [date_from + timedelta(days=i) for i in range(days + 1)]
 
 
+def _duration_percentile(sorted_values: list[int], q: float) -> int | None:
+    """Linear-interpolated percentile with the same half-up rounding as Math.round."""
+    if not sorted_values:
+        return None
+    if len(sorted_values) == 1:
+        return sorted_values[0]
+    index = (len(sorted_values) - 1) * q
+    lower = int(index)
+    upper = min(lower + 1, len(sorted_values) - 1)
+    fraction = Decimal(str(index - lower))
+    value = (
+        Decimal(sorted_values[lower]) * (Decimal(1) - fraction)
+        + Decimal(sorted_values[upper]) * fraction
+    )
+    return int(value.quantize(Decimal("1"), rounding=ROUND_HALF_UP))
+
+
 def _id_set(db: Session, stmt) -> set[int]:
     return {int(v) for v in db.execute(stmt).scalars().all() if v is not None}
 
@@ -242,16 +259,46 @@ def dashboard_overview(
         ComparisonRecord.created_at >= start_local,
         ComparisonRecord.created_at < end_local,
     )
-    period_comparison_total = _count(ComparisonRecord, *period_comparison_conds)
+    period_comparison_stats = db.execute(
-    period_comparison_success = _count(
+        select(
-        ComparisonRecord,
+            func.count(ComparisonRecord.id),
-        *period_comparison_conds,
+            func.coalesce(
-        ComparisonRecord.status == "success",
+                func.sum(
+                    case(
+                        (ComparisonRecord.status.in_(("success", "failed")), 1),
+                        else_=0,
+                    )
+                ),
+                0,
+            ),
+            func.coalesce(
+                func.sum(
+                    case((ComparisonRecord.status == "cancelled", 1), else_=0)
+                ),
+                0,
+            ),
+            func.coalesce(
+                func.sum(case((ComparisonRecord.status == "success", 1), else_=0)),
+                0,
+            ),
+            func.coalesce(func.sum(ComparisonRecord.llm_cost_yuan), 0.0),
+        ).where(*period_comparison_conds)
+    ).one()
+    period_comparison_total = int(period_comparison_stats[0])
+    period_comparison_completed = int(period_comparison_stats[1])
+    period_comparison_cancelled = int(period_comparison_stats[2])
+    period_comparison_success = int(period_comparison_stats[3])
+    period_comparison_token_cost_yuan = float(period_comparison_stats[4])
+    period_comparison_success_denominator = (
+        period_comparison_total - period_comparison_cancelled
     )
     period_comparison_success_rate = (
-        round(period_comparison_success / period_comparison_total, 4)
+        round(
-        if period_comparison_total
+            period_comparison_success / period_comparison_success_denominator,
-        else 0.0
+            4,
+        )
+        if period_comparison_success_denominator > 0
+        else None
     )
     period_saved_positive_count = _count(
         ComparisonRecord,
@@ -282,6 +329,47 @@ def dashboard_overview(
         if period_avg_duration_ms is not None
         else None
     )
+    completed_duration_conds = (
+        *period_comparison_conds,
+        ComparisonRecord.status.in_(("success", "failed")),
+        ComparisonRecord.total_ms.is_not(None),
+    )
+    if db.bind is not None and db.bind.dialect.name == "postgresql":
+        period_median_duration_ms, period_p95_duration_ms = db.execute(
+            select(
+                func.percentile_cont(0.5).within_group(ComparisonRecord.total_ms),
+                func.percentile_cont(0.95).within_group(ComparisonRecord.total_ms),
+            ).where(*completed_duration_conds)
+        ).one()
+        period_median_duration_ms = (
+            int(
+                Decimal(str(period_median_duration_ms)).quantize(
+                    Decimal("1"), rounding=ROUND_HALF_UP
+                )
+            )
+            if period_median_duration_ms is not None
+            else None
+        )
+        period_p95_duration_ms = (
+            int(
+                Decimal(str(period_p95_duration_ms)).quantize(
+                    Decimal("1"), rounding=ROUND_HALF_UP
+                )
+            )
+            if period_p95_duration_ms is not None
+            else None
+        )
+    else:
+        # SQLite 测试环境没有 percentile_cont；仅回退读取耗时单列，不加载完整记录。
+        completed_durations = list(
+            db.execute(
+                select(ComparisonRecord.total_ms)
+                .where(*completed_duration_conds)
+                .order_by(ComparisonRecord.total_ms)
+            ).scalars()
+        )
+        period_median_duration_ms = _duration_percentile(completed_durations, 0.5)
+        period_p95_duration_ms = _duration_percentile(completed_durations, 0.95)
 
     ordered_exists = (
         select(SavingsRecord.id)
@@ -622,11 +710,16 @@ def dashboard_overview(
             },
             "comparison": {
                 "total": period_comparison_total,
+                "completed": period_comparison_completed,
+                "cancelled": period_comparison_cancelled,
                 "success": period_comparison_success,
                 "success_rate": period_comparison_success_rate,
                 "ordered": period_ordered_count,
                 "average_duration_ms": period_avg_duration_ms,
+                "median_duration_ms": period_median_duration_ms,
+                "p95_duration_ms": period_p95_duration_ms,
                 "average_saved_cents": period_avg_saved_cents,
+                "token_cost_total_yuan": period_comparison_token_cost_yuan,
             },
             "coupon": {
                 "started": coupon_started,

app/admin/schemas/coupon_data.py

@@ -70,8 +70,9 @@ class CouponDataRow(BaseModel):
     started_at: datetime = Field(..., description="发起时刻(明细「时间」列)")
     claimed_count: int | None = None
     trace_url: str | None = Field(None, description="pricebot 公网 trace 链接(仅 completed 有);admin 渲染可点链接,无则显示可复制 trace_id")
-    ad_revenue_yuan: float = Field(
+    ad_revenue_yuan: float | None = Field(
-        0.0, description="本次领券看的信息流广告预估收益(元);按 trace_id 聚合 ad_ecpm_record"
+        None,
+        description="本次领券看的信息流广告预估收益(元);按 trace_id 聚合 ad_ecpm_record;无填充记录为 null",
     )
 
 

app/admin/schemas/dashboard.py

@@ -53,11 +53,16 @@ class DashboardPeriodUsers(BaseModel):
 
 class DashboardPeriodComparison(BaseModel):
     total: int
+    completed: int
+    cancelled: int
     success: int
-    success_rate: float
+    success_rate: float | None = None
     ordered: int
     average_duration_ms: int | None = None
+    median_duration_ms: int | None = None
+    p95_duration_ms: int | None = None
     average_saved_cents: int | None = None
+    token_cost_total_yuan: float = 0.0
 
 
 class DashboardPeriodCoupon(BaseModel):

tests/test_admin_read.py

@@ -1,12 +1,15 @@
 """Admin M2 读接口测试:大盘聚合 + 用户/流水/提现/反馈列表 + 鉴权拦截。"""
 from __future__ import annotations
 
+from datetime import datetime
+
 import pytest
 from fastapi.testclient import TestClient
 
 from app.admin.main import admin_app
 from app.admin.repositories import admin_user as admin_repo
 from app.db.session import SessionLocal
+from app.models.comparison import ComparisonRecord
 from app.models.feedback import Feedback
 from app.models.wallet import CashTransaction, WithdrawOrder
 from app.repositories import user as user_repo
@@ -69,6 +72,49 @@ def test_dashboard_overview(admin_client: TestClient, admin_token: str) -> None:
     assert "jd_order_count" in data["cps"]
 
 
+def test_dashboard_period_comparison_is_aggregated_by_backend(
+    admin_client: TestClient, admin_token: str
+) -> None:
+    created_at = datetime(2037, 1, 15, 12)
+    rows = [
+        ("dashboard-aggregate-success", "success", 101, 0.1),
+        ("dashboard-aggregate-failed", "failed", 200, 0.2),
+        ("dashboard-aggregate-cancelled", "cancelled", 300, 0.3),
+        ("dashboard-aggregate-running", "running", 400, 0.4),
+    ]
+    db = SessionLocal()
+    try:
+        for trace_id, status, total_ms, llm_cost_yuan in rows:
+            db.add(
+                ComparisonRecord(
+                    trace_id=trace_id,
+                    status=status,
+                    total_ms=total_ms,
+                    llm_cost_yuan=llm_cost_yuan,
+                    created_at=created_at,
+                )
+            )
+        db.commit()
+    finally:
+        db.close()
+
+    response = admin_client.get(
+        "/admin/api/stats/overview",
+        params={"date_from": "2037-01-15", "date_to": "2037-01-15"},
+        headers=_auth(admin_token),
+    )
+    assert response.status_code == 200, response.text
+    comparison = response.json()["period"]["comparison"]
+    assert comparison["total"] == 4
+    assert comparison["completed"] == 2
+    assert comparison["cancelled"] == 1
+    assert comparison["success"] == 1
+    assert comparison["success_rate"] == 0.3333
+    assert comparison["median_duration_ms"] == 151
+    assert comparison["p95_duration_ms"] == 195
+    assert comparison["token_cost_total_yuan"] == pytest.approx(1.0)
+
+
 def test_user_list_and_detail(admin_client: TestClient, admin_token: str) -> None:
     uid = _seed_user_with_data("13800000002")
     r = admin_client.get("/admin/api/users", headers=_auth(admin_token))

tests/test_board_ad_revenue.py

@@ -43,6 +43,35 @@ def test_coupon_data_report_includes_ad_revenue() -> None:
         db.close()
 
 
+def test_coupon_data_report_distinguishes_unfilled_from_zero_revenue() -> None:
+    """无 eCPM 记录返回 None；已填充但 eCPM=0 返回 0.0。"""
+    db = SessionLocal()
+    try:
+        db.add_all([
+            CouponSession(
+                trace_id="rev-cp-unfilled", device_id="d-unfilled", status="completed", app_env="prod",
+                platforms=["meituan-waimai"], platform_success=["meituan-waimai"],
+                started_at=datetime(2020, 1, 3, tzinfo=UTC), started_date=date(2020, 1, 3),
+            ),
+            CouponSession(
+                trace_id="rev-cp-zero", device_id="d-zero", status="completed", app_env="prod",
+                platforms=["meituan-waimai"], platform_success=["meituan-waimai"],
+                started_at=datetime(2020, 1, 3, tzinfo=UTC), started_date=date(2020, 1, 3),
+            ),
+            _ecpm("rev-cp-zero", "0", "cp-sess-zero", "coupon"),
+        ])
+        db.flush()
+
+        res = coupon_data_report(db, date_from="2020-01-03", date_to="2020-01-03", app_env="prod")
+        rows = {row["trace_id"]: row for row in res["items"]}
+
+        assert rows["rev-cp-unfilled"]["ad_revenue_yuan"] is None
+        assert rows["rev-cp-zero"]["ad_revenue_yuan"] == 0.0
+    finally:
+        db.rollback()
+        db.close()
+
+
 def test_comparison_list_includes_ad_revenue() -> None:
     """比价记录列表项带本次广告收益;200 分 → 0.002 元。