feat(growth): same-day 1-day baselines for new videos

Let 1-day view growth use a zero baseline for videos published today, and the first successful sample for older videos ingested today, without mixing those into 7/30-day rankings.

project.md

@@ -380,7 +380,7 @@ for folder in 配置的年度夹（2025、2026、…）:
 - 两个夹共 831 条，一次性导入 `video` 表；
 - **历史快照无法回填**：B 站不提供任意日期历史数据，只能从部署当天开始积累；
 - **开发联调阶段产生的数据一律保留**（不清库、不重建），正式上线直接续用同一个 `app.db`；
-- 新发现/新入库的视频从"入库当天"开始积累快照，第一天没有增量是正常的，看板对"仅 1 个数据点"的视频标注"样本不足"。
+- 新发现/新入库的视频从"入库当天"开始积累快照。近 1 日：当日发布按 0 起算（一次成功采样即可）；更早发布的新入库按入库时播放量起算，第二次采样走晚间全量，不进小时快照。近 7/30 日仍要跨日快照。
 
 ---
 
@@ -473,6 +473,8 @@ CREATE TABLE snapshot (
   ok          INTEGER NOT NULL DEFAULT 1,
   err         TEXT,
   src         TEXT DEFAULT 'view',      -- view | infos（降级时标记）
+  view_open   INTEGER,                  -- 同日第一次成功采样的播放量
+  open_captured_at INTEGER,             -- 开盘采样时刻
   PRIMARY KEY (stat_date, aid)
 );
 CREATE INDEX idx_snap_aid ON snapshot(aid, stat_date);
@@ -672,11 +674,13 @@ w = {view:0.30, like:0.20, coin:0.20, favorite:0.15,
 
 ### 8.2 增长榜
 
-> 看板 UI 中“增长”标注为**播放增量**（区间内绝对增量），“增速”标注为**播放增速**（增量 / 基线播放）。两者基线都取不早于 `最新快照 - N 天` 的最近一条成功快照。
+> 看板 UI 中“增长”标注为**播放增量**（区间内绝对增量），“增速”标注为**播放增速**（增量 / 基线播放）。近 7/30 日基线取不早于 `最新快照 - N 天` 的最近一条成功快照。近 1 日：有更早日期快照则用前一日；否则当日发布基准为 0，更早发布的新入库用当天第一次成功采样（`view_open`）。
 
 ```
 d7 = (view_today - view_{today-7}) / 实际间隔天数
 r7 = (view_today - view_{today-7}) / max(view_{today-7}, 1)
+d1_published_today = view_today - 0
+d1_imported_today  = view_today - view_open   # 需同日第二次采样
 ```
 
 | 榜 | 口径 | 基数门槛 |
@@ -688,7 +692,7 @@ r7 = (view_today - view_{today-7}) / max(view_{today-7}, 1)
 | 单项榜 | 7 项直接排序 | — |
 | UP 榜 | 按 `up_mid` 聚合 Σ/AVG | — |
 
-**冷启动**：不足 2 天数据的视频用"发布后 24h 增量"，并标注"样本不足"；缺失日不插值。
+**冷启动**：近 1 日不要求跨日快照。当日发布相对 0；更早发布且当天入库的片子相对 `view_open`（第二次采样走晚间全量，不进小时快照）。近 7/30 日仍要跨日快照。缺失日不插值。
 
 ### 8.3 趋势
 

reaction_board/analytics.py

@@ -313,15 +313,20 @@ def compute_growth(
     current: int | float | None,
     previous: int | float | None,
     gap_days: int | float | None,
+    *,
+    allow_zero_gap: bool = False,
 ) -> Growth:
     """计算累计差值、日均差值和相对增速。
 
-    缺失基线或间隔不足 1 天时返回不可用，不把 0 当作真实增长。
+    缺失基线或间隔为负时返回不可用。默认间隔不足 1 天也不可用，不把 0 当成真实增长。
+    ``allow_zero_gap=True`` 时允许同一天的两次采样（或相对 0）计算增量，``per_day`` 为 None。
     """
     if current is None or previous is None or gap_days is None:
         return Growth(available=False)
     gap = int(gap_days)
-    if gap <= 0:
+    if gap < 0:
+        return Growth(available=False)
+    if gap == 0 and not allow_zero_gap:
         return Growth(available=False)
     current_value = max(0, int(current))
     previous_value = max(0, int(previous))
@@ -329,7 +334,7 @@ def compute_growth(
     return Growth(
         available=True,
         delta=delta,
-        per_day=delta / gap,
+        per_day=None if gap == 0 else delta / gap,
         rate=delta / max(previous_value, 1),
         gap_days=gap,
     )

reaction_board/migrations.py

@@ -244,6 +244,18 @@ MIGRATIONS: tuple[Migration, ...] = (
             "CREATE INDEX idx_visit_date ON visit(stat_date)",
         ),
     ),
+    Migration(
+        version=8,
+        name="snapshot open view",
+        statements=(
+            # 同日第一次成功采样的播放量，供近 1 日「入库后增量」做基准。
+            # 已有成功行无法找回被覆盖的入库值，只能把当前 view 当作开盘。
+            'ALTER TABLE snapshot ADD COLUMN view_open INTEGER',
+            "ALTER TABLE snapshot ADD COLUMN open_captured_at INTEGER",
+            'UPDATE snapshot SET view_open = "view", open_captured_at = captured_at '
+            "WHERE ok = 1 AND view_open IS NULL",
+        ),
+    ),
 )
 
 

reaction_board/repository.py

@@ -690,12 +690,17 @@ class Repository:
         src: str = "view",
     ) -> None:
         values = metrics or {}
+        ok_flag = 1 if ok else 0
+        view_value = values.get("view")
+        open_view = view_value if ok else None
+        open_at = int(captured_at) if ok else None
         def run(conn: sqlite3.Connection) -> None:
             conn.execute(
                 """
                 INSERT INTO snapshot(stat_date, aid, "view", "like", favorite, coin,
-                                     share, reply, danmaku, captured_at, ok, err, src)
+                                     share, reply, danmaku, captured_at, ok, err, src,
-                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
+                                     view_open, open_captured_at)
+                VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)
                 ON CONFLICT(stat_date, aid) DO UPDATE SET
                   "view" = excluded."view",
                   "like" = excluded."like",
@@ -707,12 +712,22 @@ class Repository:
                   captured_at = excluded.captured_at,
                   ok = excluded.ok,
                   err = excluded.err,
-                  src = excluded.src
+                  src = excluded.src,
+                  view_open = CASE
+                    WHEN excluded.ok = 1 AND snapshot.view_open IS NULL
+                    THEN excluded."view"
+                    ELSE snapshot.view_open
+                  END,
+                  open_captured_at = CASE
+                    WHEN excluded.ok = 1 AND snapshot.open_captured_at IS NULL
+                    THEN excluded.captured_at
+                    ELSE snapshot.open_captured_at
+                  END
                 """,
                 (
                     stat_date,
                     int(aid),
-                    values.get("view"),
+                    view_value,
                     values.get("like"),
                     values.get("favorite"),
                     values.get("coin"),
@@ -720,9 +735,11 @@ class Repository:
                     values.get("reply"),
                     values.get("danmaku"),
                     int(captured_at),
-                    1 if ok else 0,
+                    ok_flag,
                     err,
                     src,
+                    open_view,
+                    open_at,
                 ),
             )
         self.db.write(run)
@@ -741,18 +758,23 @@ class Repository:
                 """
                 INSERT INTO snapshot(
                   stat_date, aid, "view", "like", favorite, coin,
-                  share, reply, danmaku, captured_at, ok, err, src
+                  share, reply, danmaku, captured_at, ok, err, src,
+                  view_open, open_captured_at
                 )
                 SELECT
                   ?, aid, "view", "like", favorite, coin,
-                  share, reply, danmaku, ?, 1, NULL, ?
+                  share, reply, danmaku, ?, 1, NULL, ?,
+                  "view", ?
                 FROM snapshot
                 WHERE stat_date = ? AND ok = 1
                   AND aid NOT IN (
                     SELECT aid FROM snapshot WHERE stat_date = ?
                   )
                 """,
-                (target_date, int(captured_at), src, source_date, target_date),
+                (
+                    target_date, int(captured_at), src, int(captured_at),
+                    source_date, target_date,
+                ),
             )
             return int(cur.rowcount or 0)
         return self.db.write(run)

reaction_board/services/snapshot.py

@@ -310,7 +310,8 @@ class SnapshotService:
         """刷新近 N 天新视频的当日快照；不碰完成日标记与日备份。
 
         「近 N 天」按 pubdate 墙钟窗口：``now - recent_video_days * 86400``，
-        不是上海日历日差。允许覆盖同日已有 ``ok=1`` 行以便小时级刷新。
+        不是上海日历日差。当天入库但发布更早的旧片不进小时任务。
+        允许覆盖同日已有 ``ok=1`` 行以便小时级刷新。
         """
         cfg = self.config_store.get()
         client = self._client()

reaction_board/web/queries.py

@@ -385,6 +385,18 @@ class DashboardQueries:
         percentiles = score_percentiles(scores)
         return videos, snapshots, scores, percentiles
 
+    @staticmethod
+    def _publish_date(pubdate: object) -> str | None:
+        if pubdate is None or isinstance(pubdate, bool):
+            return None
+        try:
+            ts = int(pubdate)
+        except (TypeError, ValueError):
+            return None
+        if ts <= 0:
+            return None
+        return shanghai_date(ts)
+
     @staticmethod
     def _growth_for(
         snapshot: Mapping[str, Any] | None,
@@ -406,6 +418,68 @@ class DashboardQueries:
                 gap = None
         return compute_growth(current, before, gap)
 
+    @classmethod
+    def _same_day_growth(
+        cls,
+        snapshot: Mapping[str, Any] | None,
+        video: Mapping[str, Any],
+        metric: str = "view",
+    ) -> dict[str, Any] | None:
+        """近 1 日、没有更早快照时：当日发布相对 0；否则用 view_open。"""
+        if snapshot is None:
+            return None
+        current = snapshot.get(metric)
+        if current is None:
+            return None
+        stat_date = str(snapshot.get("stat_date") or "")
+        published_on = cls._publish_date(video.get("pubdate"))
+        if published_on is not None and published_on == stat_date:
+            growth = compute_growth(current, 0, 0, allow_zero_gap=True)
+            payload = growth.as_dict()
+            payload["baseline"] = "zero"
+            return payload
+        try:
+            open_at = snapshot.get("open_captured_at")
+            captured_at = snapshot.get("captured_at")
+            view_open = snapshot.get("view_open")
+            open_ready = (
+                open_at is not None
+                and captured_at is not None
+                and int(open_at) < int(captured_at)
+                and view_open is not None
+            )
+        except (TypeError, ValueError):
+            open_ready = False
+        if not open_ready:
+            return None
+        growth = compute_growth(current, view_open, 0, allow_zero_gap=True)
+        payload = growth.as_dict()
+        payload["baseline"] = "open"
+        return payload
+
+    @classmethod
+    def _growth_result(
+        cls,
+        video: Mapping[str, Any],
+        snapshot: Mapping[str, Any] | None,
+        previous: Mapping[str, Any] | None,
+        *,
+        days_back: int,
+        metric: str = "view",
+    ) -> dict[str, Any]:
+        if previous is not None:
+            growth = cls._growth_for(snapshot, previous, metric=metric)
+            payload = growth.as_dict()
+            payload["baseline"] = "snapshot" if growth.available else None
+            return payload
+        if days_back == 1:
+            fallback = cls._same_day_growth(snapshot, video, metric=metric)
+            if fallback is not None:
+                return fallback
+        payload = compute_growth(None, None, None).as_dict()
+        payload["baseline"] = None
+        return payload
+
     def _item(
         self,
         video: Mapping[str, Any],
@@ -415,6 +489,7 @@ class DashboardQueries:
         percentile: float | None = None,
         previous: Mapping[str, Any] | None = None,
         include_growth: bool = False,
+        growth_days: int | None = None,
     ) -> dict[str, Any]:
         metrics = _metric_map(snapshot)
         duration = video.get("duration")
@@ -455,7 +530,9 @@ class DashboardQueries:
             ),
         }
         if include_growth:
-            item["growth"] = self._growth_for(snapshot, previous).as_dict()
+            item["growth"] = self._growth_result(
+                video, snapshot, previous, days_back=int(growth_days or 1),
+            )
         return item
 
     # ------------------------------------------------------------ overview
@@ -474,7 +551,7 @@ class DashboardQueries:
             videos = self._videos(conn)
             aids = [int(video["aid"]) for video in videos]
             snapshots = self._snapshot_map(conn, aids)
-            # 播放增量：按片相对当前点的相邻成功日，避免 seed/recent 拉到 T-2。
+            # 播放增量：近 1 日。有更早日用相邻成功日；当日发布相对 0；否则用 view_open。
             previous = self._snapshot_previous_relative(conn, snapshots, days_back=1)
             totals = {metric: 0 for metric in METRICS}
             for video in videos:
@@ -489,12 +566,13 @@ class DashboardQueries:
             for video in videos:
                 aid = int(video["aid"])
                 snapshot = snapshots.get(aid)
-                prior = previous.get(aid)
+                if snapshot is None:
-                if snapshot is None or prior is None:
                     continue
-                growth = self._growth_for(snapshot, prior)
+                growth = self._growth_result(
-                if growth.available and growth.delta is not None:
+                    video, snapshot, previous.get(aid), days_back=1,
-                    view_delta_sum += growth.delta
+                )
+                if growth.get("available") and growth.get("delta") is not None:
+                    view_delta_sum += int(growth["delta"])
                     available_deltas += 1
             if available_deltas:
                 view_delta = view_delta_sum
@@ -868,6 +946,7 @@ class DashboardQueries:
                     percentile=percentiles.get(int(video["aid"])),
                     previous=previous.get(int(video["aid"])),
                     include_growth=sort in {"growth", "growth_rate"},
+                    growth_days=growth_days,
                 )
                 for video in videos
             ]
@@ -977,6 +1056,12 @@ class DashboardQueries:
             reason = None
             if sort in {"growth", "growth_rate"} and not growth_available:
                 available = False
+                if growth_days == 1:
+                    reason = (
+                        "近 1 日增长需要前一日快照；当日发布有一次成功采样即可；"
+                        "更早发布的新入库需要当天至少两次成功采样"
+                    )
+                else:
                     reason = (
                         f"近 {growth_days} 日增长需要至少 {growth_days + 1} 天快照"
                     )
@@ -1031,16 +1116,19 @@ class DashboardQueries:
                 video = dict(row)
             snapshots = self._snapshot_map(conn, [aid])
             snapshot = snapshots.get(aid)
-            previous = self._snapshot_map(conn, [aid], before=snapshot["stat_date"] if snapshot else None).get(aid)
+            previous = self._snapshot_map(
+                conn, [aid], before=snapshot["stat_date"] if snapshot else None,
+            ).get(aid)
             _, _, heat, percentiles = self._global_heat(conn)
-            growth = self._growth_for(snapshot, previous)
             item = self._item(
                 video,
                 snapshot,
                 heat=heat.get(aid),
                 percentile=percentiles.get(aid),
             )
-            item["growth"] = growth.as_dict()
+            item["growth"] = self._growth_result(
+                video, snapshot, previous, days_back=1,
+            )
             item["snapshot_count"] = int(conn.execute(
                 "SELECT COUNT(*) FROM snapshot WHERE aid = ?", (aid,)
             ).fetchone()[0])

reaction_board/web/static/components.js

@@ -30,6 +30,12 @@ export function avatar(item, className = "avatar") {
     loading="lazy" referrerpolicy="no-referrer"></div>`;
 }
 
+function growthBaselineTag(growth) {
+  if (growth?.baseline === "zero") return "<small>今日</small>";
+  if (growth?.baseline === "open") return "<small>入库后</small>";
+  return "";
+}
+
 export function videoCard(item, {
   rank = null, primary = "view", primaryLabel = "", primaryText = null,
   showStatus = false,
@@ -73,7 +79,7 @@ export function videoCard(item, {
           <span class="primary-stat">
             <b>${escapeHtml(primaryValue ?? "—")}</b><small>${escapeHtml(label)}</small>
           </span>
-          ${delta !== null ? `<span class="delta ${delta >= 0 ? "up" : "down"}">${formatDelta(delta)}</span>` : ""}
+          ${delta !== null ? `<span class="delta ${delta >= 0 ? "up" : "down"}">${formatDelta(delta)}${growthBaselineTag(growth)}</span>` : ""}
           <span class="secondary-stat">互动 ${formatPercent(item.interaction_rate)}</span>
         </div>
       </div>
@@ -118,7 +124,7 @@ export function metricGrid(item) {
   return `<div class="metric-grid">
     ${["view", "like", "coin", "favorite", "share", "reply", "danmaku"].map((metric) => {
       const extra = metric === "view" && growth?.available
-        ? `<span class="metric-delta ${growth.delta >= 0 ? "up" : "down"}">${formatDelta(growth.delta)}</span>`
+        ? `<span class="metric-delta ${growth.delta >= 0 ? "up" : "down"}">${formatDelta(growth.delta)}${growthBaselineTag(growth)}</span>`
         : "";
       return `<div class="metric-cell">
         <span class="metric-label">${escapeHtml(metricLabel(metric))}</span>

reaction_board/web/static/views/about.js

@@ -92,7 +92,7 @@ export async function renderAbout(root) {
         <li>B 站不公开完播率与单 P 播放，内容小时是“供给时长”，不是“实际观看时长”。</li>
         <li>多 P 可能让同一用户产生多次播放计数，本站不单独校正，属于已知偏差。</li>
         <li>粉丝数可能包含不活跃账号；粉丝快照暂不参与任何榜单。</li>
-        <li>样本不足（少于 2 天快照、单视频 UP）会显示提示，不伪造 0。</li>
+        <li>近 7/30 日增长仍要跨日快照。近 1 日：当日发布按 0 起算；更早发布的新入库按入库时播放量起算，需当天至少两次采样。样本不足时显示提示，不伪造 0。</li>
       </ul>
     </section>
 

reaction_board/web/static/views/home.js

@@ -69,7 +69,7 @@ export async function renderHome(root) {
   const growthEmptyTitle = growth.reason
     || `近 ${growthDays} 日增长暂不可用`;
   const growthEmptyHint = growthDays <= 1
-    ? "当前快照不足，完成至少 2 天快照后即可显示播放增量。"
+    ? "当日发布按 0 起算；更早发布的新入库需要当天至少两次采样。"
     : `需要至少 ${growthDays + 1} 天快照才能计算近 ${growthDays} 日增长。`;
   const updatedLabel = formatClock(overview.updated_at);
   const dataDateLabel = formatDataDate(overview.data_date);

reaction_board/web/static/views/rankings.js

@@ -179,6 +179,12 @@ function durationNote(data) {
   return `<div class="section-note">内容效率与互动效率：时长 ≥ ${filter.min_duration_seconds} 秒、发布满 ${filter.maturity_days} 天、播放 ≥ ${filter.min_view}${shrink}；时长缺失不参与。</div>`;
 }
 
+function growthNote(sort, growthDays) {
+  if (sort !== "growth" && sort !== "growth_rate") return "";
+  if (Number(growthDays) !== 1) return "";
+  return `<div class="section-note">近 1 日：当日发布按 0 起算；更早发布的新入库按入库时播放量起算，需要当天至少两次采样。</div>`;
+}
+
 function bindControls(root) {
   root.querySelector("#rank-sort")?.addEventListener("change", (event) => {
     replaceQuery({ sort: event.target.value, page: null });
@@ -245,6 +251,7 @@ async function renderScope(root, { query }, scope) {
     </header>
     ${controls({ scope, sort, within, year, growthDays, q, years })}
     ${durationNote(data)}
+    ${growthNote(sort, growthDays)}
     ${data.available === false ? `<div class="notice-row warning">
       <strong>${sort.startsWith("growth") ? "增长数据尚不可用" : "榜单筛选后为空"}</strong>
       <span>${escapeHtml(data.reason || "")}</span>

reaction_board/web/static/views/video.js

@@ -62,7 +62,7 @@ export async function renderVideo(root, { params, query }) {
           <span>${escapeHtml(formatDuration(detail.duration))}</span>
           ${detail.pages ? `<span>${formatNumber(detail.pages)} P</span>` : ""}
           ${badge(statusLabel(detail.status), `status-${detail.status}`)}
-          ${samples < 2 ? badge("样本不足", "warning") : ""}
+          ${samples < 2 && !detail.growth?.available ? badge("样本不足", "warning") : ""}
         </div>
         ${detail.blacklisted ? `<p class="section-note warning-text">该 UP 在黑名单中；黑名单只影响未来发现，不影响当前视频追踪。</p>` : ""}
         ${detail.up_follower_backfilled ? `<p class="section-note">UP 粉丝数为回填值，不是真实的入库时点。</p>` : ""}

tests/test_analytics.py

@@ -131,6 +131,18 @@ def test_compute_growth():
     no_gap = compute_growth(100, 90, 0)
     assert no_gap.available is False
 
+    same_day = compute_growth(100, 90, 0, allow_zero_gap=True)
+    assert same_day.available is True
+    assert same_day.delta == 10
+    assert same_day.per_day is None
+    assert same_day.gap_days == 0
+    assert abs(same_day.rate - 10 / 90) < 1e-12
+
+    from_zero_same_day = compute_growth(50, 0, 0, allow_zero_gap=True)
+    assert from_zero_same_day.delta == 50
+    assert from_zero_same_day.rate == 50.0
+    assert from_zero_same_day.per_day is None
+
     growth = compute_growth(1000, 800, 7)
     assert growth.available is True
     assert growth.delta == 200

tests/test_cli.py

@@ -51,7 +51,7 @@ def test_init_and_status():
         path = write_config(tmp)
         code, output = run_cli(["init", "--config", str(path)])
         assert code == 0
-        assert '"schema_version": 7' in output
+        assert '"schema_version": 8' in output
 
         db = Database(Path(tmp) / "app.db")
         db.initialize()

tests/test_database.py

@@ -24,7 +24,7 @@ def test_write_read_transaction():
     with tempfile.TemporaryDirectory() as tmp:
         db = make_db(tmp)
         try:
-            assert db.schema_version == 7
+            assert db.schema_version == 8
             db.write(lambda c: c.execute("INSERT INTO kv(k, v) VALUES ('a', '1')"))
             assert db.read(lambda c: c.execute("SELECT v FROM kv WHERE k='a'").fetchone()[0]) == "1"
 
@@ -94,8 +94,8 @@ def test_close_and_reinitialize():
 
         db2 = make_db(tmp)
         try:
-            assert db2.schema_version == 7
+            assert db2.schema_version == 8
-            assert db2.read(lambda c: c.execute("SELECT MAX(version) FROM schema_version").fetchone()[0]) == 7
+            assert db2.read(lambda c: c.execute("SELECT MAX(version) FROM schema_version").fetchone()[0]) == 8
         finally:
             db2.close()
 
@@ -123,7 +123,7 @@ def test_migration_backup_on_existing_db():
         db = Database(path, backup_dir=Path(tmp) / "backup")
         try:
             applied = db.initialize()
-            assert applied == [1, 2, 3, 4, 5, 6, 7]
+            assert applied == [1, 2, 3, 4, 5, 6, 7, 8]
             assert len(list((Path(tmp) / "backup").glob("app-pre-v0-*.db"))) == 1
         finally:
             db.close()

tests/test_migrations.py

@@ -38,8 +38,8 @@ def test_fresh_and_idempotent():
         conn = sqlite3.connect(Path(tmp) / "app.db")
         try:
             applied = run_migrations(conn)
-            assert applied == [1, 2, 3, 4, 5, 6, 7]
+            assert applied == [1, 2, 3, 4, 5, 6, 7, 8]
-            assert current_version(conn) == 7
+            assert current_version(conn) == 8
             assert EXPECTED_TABLES <= table_names(conn)
             assert "schema_version" in table_names(conn)
             columns = {
@@ -70,10 +70,14 @@ def test_fresh_and_idempotent():
             assert {
                 "stat_date", "ip", "path", "hits", "first_at", "last_at",
             } <= visit_columns
+            snapshot_columns = {
+                row[1] for row in conn.execute("PRAGMA table_info(snapshot)")
+            }
+            assert {"view_open", "open_captured_at"} <= snapshot_columns
             # 再跑一次不应重复应用
             assert run_migrations(conn) == []
             row = conn.execute("SELECT COUNT(*) FROM schema_version").fetchone()
-            assert row[0] == 7
+            assert row[0] == 8
         finally:
             conn.close()
 
@@ -88,15 +92,15 @@ def test_backup_before_upgrade():
             conn.execute("INSERT INTO kv(k, v) VALUES ('hello', 'world')")
             conn.commit()
 
-            v8 = Migration(8, "add probe", ("CREATE TABLE probe (id INTEGER PRIMARY KEY)",))
+            v9 = Migration(9, "add probe", ("CREATE TABLE probe (id INTEGER PRIMARY KEY)",))
             applied = run_migrations(
                 conn,
                 backup_dir=backup_dir,
                 now=1_800_000_000,
-                migrations=MIGRATIONS + (v8,),
+                migrations=MIGRATIONS + (v9,),
             )
-            assert applied == [8]
+            assert applied == [9]
-            backups = list(backup_dir.glob("app-pre-v7-*.db"))
+            backups = list(backup_dir.glob("app-pre-v8-*.db"))
             assert len(backups) == 1
             check = sqlite3.connect(backups[0])
             try:
@@ -181,13 +185,46 @@ def test_v5_normalizes_unfaved():
             )
             conn.commit()
             applied = run_migrations(conn)
-            assert applied == [5, 6, 7]
+            assert applied == [5, 6, 7, 8]
             rows = dict(conn.execute("SELECT aid, status FROM video").fetchall())
             assert rows == {1: "active", 2: "dropped"}
         finally:
             conn.close()
 
 
+def test_v8_backfills_view_open():
+    with tempfile.TemporaryDirectory() as tmp:
+        conn = sqlite3.connect(Path(tmp) / "app.db")
+        try:
+            run_migrations(conn, migrations=MIGRATIONS[:7])
+            conn.execute(
+                "INSERT INTO video(aid, title, pubdate, status, first_seen) "
+                "VALUES (1, 't', 1, 'active', 1)"
+            )
+            conn.execute(
+                'INSERT INTO snapshot(stat_date, aid, "view", captured_at, ok) '
+                "VALUES ('2026-10-31', 1, 500, 100, 1)"
+            )
+            conn.execute(
+                'INSERT INTO snapshot(stat_date, aid, "view", captured_at, ok) '
+                "VALUES ('2026-10-30', 1, NULL, 90, 0)"
+            )
+            conn.commit()
+            assert run_migrations(conn) == [8]
+            ok_row = conn.execute(
+                "SELECT view_open, open_captured_at FROM snapshot "
+                "WHERE stat_date='2026-10-31'"
+            ).fetchone()
+            assert ok_row[0] == 500 and ok_row[1] == 100
+            fail_row = conn.execute(
+                "SELECT view_open, open_captured_at FROM snapshot "
+                "WHERE stat_date='2026-10-30'"
+            ).fetchone()
+            assert fail_row[0] is None and fail_row[1] is None
+        finally:
+            conn.close()
+
+
 def main():
     test_fresh_and_idempotent()
     test_backup_before_upgrade()
@@ -195,6 +232,7 @@ def main():
     test_prune_backups()
     test_validate_migration_order()
     test_v5_normalizes_unfaved()
+    test_v8_backfills_view_open()
     print("OK: SQLite 迁移、备份与回滚测试全部通过")
 
 

tests/test_repository.py

@@ -296,6 +296,59 @@ def test_pending_snapshot_aids():
             db.close()
 
 
+def test_upsert_snapshot_preserves_view_open():
+    with tempfile.TemporaryDirectory() as tmp:
+        db, repo = setup(tmp)
+        try:
+            metrics = {
+                "view": 10, "like": 1, "favorite": 0, "coin": 0,
+                "share": 0, "reply": 0, "danmaku": 0,
+            }
+            repo.upsert_snapshot(
+                "2026-10-31", 1, metrics=metrics, ok=True, err=None, captured_at=10,
+            )
+            first = repo.get_snapshot("2026-10-31", 1)
+            assert first["view"] == 10
+            assert first["view_open"] == 10
+            assert first["open_captured_at"] == 10
+
+            metrics["view"] = 40
+            repo.upsert_snapshot(
+                "2026-10-31", 1, metrics=metrics, ok=True, err=None, captured_at=20,
+            )
+            second = repo.get_snapshot("2026-10-31", 1)
+            assert second["view"] == 40
+            assert second["view_open"] == 10
+            assert second["open_captured_at"] == 10
+            assert second["captured_at"] == 20
+
+            repo.upsert_snapshot(
+                "2026-10-31", 2, metrics=None, ok=False, err="x", captured_at=1,
+            )
+            failed = repo.get_snapshot("2026-10-31", 2)
+            assert failed["view_open"] is None
+            metrics["view"] = 7
+            repo.upsert_snapshot(
+                "2026-10-31", 2, metrics=metrics, ok=True, err=None, captured_at=5,
+            )
+            recovered = repo.get_snapshot("2026-10-31", 2)
+            assert recovered["view"] == 7
+            assert recovered["view_open"] == 7
+            assert recovered["open_captured_at"] == 5
+
+            copied = repo.copy_ok_snapshots(
+                "2026-10-31", "2026-11-01", captured_at=30, src="seed",
+            )
+            assert copied == 2
+            seeded = repo.get_snapshot("2026-11-01", 1)
+            assert seeded["view"] == 40
+            assert seeded["view_open"] == 40
+            assert seeded["open_captured_at"] == 30
+            assert seeded["src"] == "seed"
+        finally:
+            db.close()
+
+
 def test_up_follower_snapshot_and_backfill():
     with tempfile.TemporaryDirectory() as tmp:
         db, repo = setup(tmp)
@@ -367,6 +420,7 @@ def main():
     test_primary_folder_is_order_independent()
     test_dropped_invalid_preserves_original_title()
     test_pending_snapshot_aids()
+    test_upsert_snapshot_preserves_view_open()
     test_up_follower_snapshot_and_backfill()
     print("OK: 收藏夹/视频状态机与黑名单测试全部通过")
 

tests/test_snapshot.py

@@ -444,19 +444,22 @@ def test_run_recent_videos_refreshes_without_completion_markers():
             1: view_for(1, view=111),
             2: view_for(2, view=222),
             3: view_for(3, view=333),
+            4: view_for(4, view=444),
         })
         db, repo, service = make_service(tmp, transport, track_fans=())
         try:
-            # 1/2 在墙钟近 2 天内；3 为旧片
+            # 1/2 在墙钟近 2 天内；3 为旧片；4 发布已久但当天入库，不进小时任务
             add_video(repo, 1)
             add_video(repo, 2)
             add_video(repo, 3)
+            add_video(repo, 4)
             repo.db.write(lambda conn: conn.executemany(
                 "UPDATE video SET pubdate = ? WHERE aid = ?",
                 [
                     (clock - 3600, 1),
                     (clock - 86400, 2),
                     (clock - 10 * 86400, 3),
+                    (clock - 10 * 86400, 4),
                 ],
             ))
             # 预置同日 ok=1，验证小时任务可覆盖刷新
@@ -477,23 +480,27 @@ def test_run_recent_videos_refreshes_without_completion_markers():
             )) == {1, 2}
 
             row = repo.db.read(lambda conn: dict(conn.execute(
-                "SELECT view, ok, captured_at FROM snapshot WHERE stat_date=? AND aid=1",
+                "SELECT view, ok, captured_at, view_open FROM snapshot "
+                "WHERE stat_date=? AND aid=1",
                 (DATE,),
             ).fetchone()))
             assert row["view"] == 111
             assert row["ok"] == 1
             assert row["captured_at"] == clock
+            assert row["view_open"] == 1
 
             # 完成日 / 备份标记保持原样
             assert repo.kv_get(service.completed_key(DATE)) is None
             assert repo.kv_get("snapshot:last_completed") is None
             assert repo.kv_get(service.backup_key(DATE)) is None
             assert transport.count("/web-interface/view") == 2
+            assert repo.get_snapshot(DATE, 4) is None
 
             # 全量任务随后才写完成日；且已 ok=1 的跳过
             full = service.run_videos(date=DATE)
             assert full.skipped >= 2  # 1、2 已被小时任务写过
-            assert full.success >= 1  # 至少旧片 3
+            assert full.success >= 1  # 至少旧片 3、4
+            assert repo.get_snapshot(DATE, 4) is not None
             assert repo.kv_get(service.completed_key(DATE)) == "1"
             assert repo.kv_get("snapshot:last_completed") == DATE
         finally:
@@ -562,6 +569,7 @@ def test_seed_from_last_completed_does_not_mark_completed():
             row = repo.get_snapshot(today, 1)
             assert row is not None
             assert int(row["view"]) == 10
+            assert int(row["view_open"]) == 10
             assert row["src"] == "seed"
             fan = repo.get_up_stat(today, 37754047)
             assert fan is not None and int(fan["follower"]) == 100

tests/test_web_queries.py

@@ -15,7 +15,7 @@ from reaction_board.repository import Repository  # noqa: E402
 from reaction_board.timeutil import day_bounds  # noqa: E402
 from reaction_board.web.cache import DASHBOARD_CACHE  # noqa: E402
 from reaction_board.web.queries import DashboardQueries  # noqa: E402
-from tests.web_fixtures import DATES, build_db, write_config  # noqa: E402
+from tests.web_fixtures import DATES, FOLDER, build_db, resource, write_config  # noqa: E402
 
 FIXED_NOW = 1_793_459_000  # 2026-10-31 前后
 
@@ -46,7 +46,7 @@ def test_overview():
             assert overview["counts"]["candidates_pending"] == 1
             assert overview["totals"]["view"] == 1200 + 5200 + 120
             assert overview["interactions"] > 0
-            assert overview["view_delta"] == (100 + 100 + 0)  # 101/102 的日增量
+            assert overview["view_delta"] == (100 + 100 + 120)  # 101/102 跨日 + 103 当日发布
             assert overview["snapshot_health"]["total"] == 3
             assert overview["folders"][0]["media_count"] == 3
             assert overview["folders"][0]["ratio"] < 1
@@ -484,7 +484,7 @@ def test_about_payload():
             assert about["snapshot_days"] == 3
             assert about["snapshot_first_date"] == DATES[0]
             assert about["fans_start_date"] == DATES[0]
-            assert about["schema_version"] == 7
+            assert about["schema_version"] == 8
             assert about["analytics"] == {
                 "min_duration_seconds": 600,
                 "maturity_days": 2,
@@ -577,9 +577,13 @@ def test_growth_auto_falls_back_to_one_day():
             assert auto["available"] is True
             assert auto["growth_days"] == 1
             assert auto["days"] == 1
-            assert {item["aid"] for item in auto["items"]} == {101, 102}
+            assert {item["aid"] for item in auto["items"]} == {101, 102, 103}
             first = next(item for item in auto["items"] if item["aid"] == 101)
             assert first["growth"]["delta"] == 100  # 相邻日
+            assert first["growth"]["baseline"] == "snapshot"
+            today = next(item for item in auto["items"] if item["aid"] == 103)
+            assert today["growth"]["baseline"] == "zero"
+            assert today["growth"]["delta"] == 120
 
             forced7 = q.list_videos(sort="growth", growth_days=7)
             assert forced7["available"] is False
@@ -667,9 +671,10 @@ def test_overview_adjacent_previous_with_seed_and_dual_fields():
                 + overview["counts"]["unfaved"]
                 + overview["counts"]["removed"]
             )
-            # 当前=seed(=完成日数值)，相邻 previous=完成日本身 → 增量 0
+            # 101/102：当前=seed(=完成日数值)，相邻 previous=完成日本身 → 增量 0
+            # 103：当日发布，近 1 日相对 0，计入当前播放
             assert overview["view_delta_available"] is True
-            assert overview["view_delta"] == 0
+            assert overview["view_delta"] == 120
 
             growth = q.list_videos(sort="growth", growth_days=1)
             assert growth["available"] is True
@@ -678,6 +683,93 @@ def test_overview_adjacent_previous_with_seed_and_dual_fields():
                     assert item["growth"]["available"] is True
                     assert item["growth"]["delta"] == 0
                     assert item["growth"]["gap_days"] == 1
+                    assert item["growth"]["baseline"] == "snapshot"
+        finally:
+            db.close()
+
+
+def _view_metrics(view: int) -> dict[str, int]:
+    return {
+        "view": view, "like": 0, "coin": 0, "favorite": 0,
+        "share": 0, "reply": 0, "danmaku": 0,
+    }
+
+
+def test_same_day_growth_baselines():
+    """近 1 日：当日发布相对 0；更早发布用 view_open；7 日不用这两条退路。"""
+    with tempfile.TemporaryDirectory() as tmp:
+        db, q = setup(tmp)
+        try:
+            repo = Repository(db)
+            today = DATES[-1]
+            start = int(day_bounds(today)[0])
+            old_pub = int(day_bounds("2026-09-01")[0])
+
+            repo.upsert_snapshot(
+                today, 103, metrics=_view_metrics(200),
+                ok=True, err=None, captured_at=start + 3600,
+            )
+            repo.upsert_from_fav(
+                resource(105, up_mid=1, up_name="UP A", pubdate=old_pub),
+                FOLDER.media_id, was_added=True, now=start + 10,
+            )
+            repo.upsert_snapshot(
+                today, 105, metrics=_view_metrics(500),
+                ok=True, err=None, captured_at=start + 10,
+            )
+            repo.upsert_snapshot(
+                today, 105, metrics=_view_metrics(800),
+                ok=True, err=None, captured_at=start + 20,
+            )
+            repo.upsert_from_fav(
+                resource(106, up_mid=1, up_name="UP A", pubdate=old_pub),
+                FOLDER.media_id, was_added=True, now=start + 30,
+            )
+            repo.upsert_snapshot(
+                today, 106, metrics=_view_metrics(900),
+                ok=True, err=None, captured_at=start + 30,
+            )
+            repo.upsert_from_fav(
+                resource(107, up_mid=1, up_name="UP A", pubdate=old_pub),
+                FOLDER.media_id, was_added=True, now=start + 40,
+            )
+            repo.upsert_snapshot(
+                today, 107, metrics=_view_metrics(50),
+                ok=True, err=None, captured_at=start + 40,
+            )
+            db.write(lambda conn: conn.execute(
+                "UPDATE video SET pubdate = 0 WHERE aid = 107"
+            ))
+            DASHBOARD_CACHE.clear()
+
+            one = q.list_videos(sort="growth", growth_days=1, page_size=20)
+            by_aid = {item["aid"]: item for item in one["items"]}
+            assert 103 in by_aid and 105 in by_aid
+            assert 106 not in by_aid and 107 not in by_aid
+            assert by_aid[103]["growth"]["baseline"] == "zero"
+            assert by_aid[103]["growth"]["delta"] == 200
+            assert by_aid[103]["growth"]["gap_days"] == 0
+            assert by_aid[105]["growth"]["baseline"] == "open"
+            assert by_aid[105]["growth"]["delta"] == 300
+            assert by_aid[101]["growth"]["baseline"] == "snapshot"
+            assert by_aid[101]["growth"]["delta"] == 100
+
+            seven = q.list_videos(sort="growth", growth_days=7)
+            seven_aids = {item["aid"] for item in seven["items"]}
+            assert 103 not in seven_aids
+            assert 105 not in seven_aids
+
+            detail103 = q.video_detail(103)
+            assert detail103["growth"]["baseline"] == "zero"
+            assert detail103["growth"]["delta"] == 200
+            detail105 = q.video_detail(105)
+            assert detail105["growth"]["baseline"] == "open"
+            assert detail105["growth"]["delta"] == 300
+            assert q.video_detail(106)["growth"]["available"] is False
+            assert q.video_detail(107)["growth"]["available"] is False
+
+            overview = q.overview()
+            assert overview["view_delta"] == 100 + 100 + 200 + 300
         finally:
             db.close()
 
@@ -699,6 +791,7 @@ def main_test():
     test_growth_auto_falls_back_to_one_day()
     test_snapshot_recent_next_run_follows_completion()
     test_overview_adjacent_previous_with_seed_and_dual_fields()
+    test_same_day_growth_baselines()
     print("OK: Web 查询层总览/榜单/详情/UP/时长效率/粉丝/候选/系统/访问统计测试全部通过")
 
 

tests/test_web_server.py

@@ -75,7 +75,7 @@ def test_readonly_routes_and_static():
             assert status == 200 and payload["ok"] is True
             status, _, payload = running.json("/api/about")
             assert status == 200
-            assert payload["data"]["schema_version"] == 7
+            assert payload["data"]["schema_version"] == 8
             assert payload["data"]["analytics"]["min_duration_seconds"] == 600
 
             status, _, overview = running.json("/api/overview")

tests/web_fixtures.py

@@ -138,7 +138,7 @@ def build_db(tmp: str | Path) -> Path:
                 day, 37754047, follower=1000 + index * 10, following=5,
                 ok=True, captured_at=ts(day) + 60,
             )
-        # 103 只有最后一天快照，用于验证样本不足；104 另加一条失败快照
+        # 103 只有最后一天快照（发布日=快照日，近 1 日相对 0）；104 另加一条失败快照
         repo.upsert_snapshot(
             DATES[-1], 103,
             metrics={"view": 120, "like": 5, "coin": 1, "favorite": 2, "share": 0, "reply": 1, "danmaku": 1},

tools/seed_preview_db.py

@@ -237,8 +237,8 @@ def _insert_snapshot(
         """
         INSERT OR REPLACE INTO snapshot(
           stat_date, aid, "view", "like", favorite, coin, share, reply,
-          danmaku, captured_at, ok, err, src
+          danmaku, captured_at, ok, err, src, view_open, open_captured_at
-        ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'preview')
+        ) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, 'preview', ?, ?)
         """,
         (
             stat_date,
@@ -253,6 +253,8 @@ def _insert_snapshot(
             int(captured_at),
             1 if ok else 0,
             err,
+            values.get("view") if ok else None,
+            int(captured_at) if ok else None,
         ),
     )