feat(ui): watch a series from its dialog and review new parts

static/app.js

@@ -93,7 +93,7 @@ async function refreshMissingBadge() {
 
 // ---- navigation ----
 // the view lives in the hash so reload, back button and links keep it
-const VIEWS = ["search", "missing", "imported", "import", "activity", "settings"];
+const VIEWS = ["search", "missing", "imported", "import", "series", "activity", "settings", "system"];
 
 function showView() {
   const hash = location.hash.slice(1);
@@ -102,6 +102,8 @@ function showView() {
   $$("main > section").forEach((s) => (s.hidden = s.id !== "view-" + name));
   if (name === "missing" || name === "imported") loadRequests(name);
   if (name === "activity") loadHistory();
+  if (name === "system") loadSystem();
+  if (name === "series") loadWatches();
   if (name === "settings") loadLibraries().catch((err) => toast(err.message, true));
 }
 
@@ -117,6 +119,7 @@ window.addEventListener("hashchange", showView);
 // ---- libraries ----
 async function loadLibraries() {
   libraries = await api("/api/libraries");
+  refreshHealth();
   const tbody = $("#lib-table tbody");
   tbody.innerHTML = libraries
     .map(
@@ -318,6 +321,8 @@ function renderSearchResults() {
 // ---- request a whole series ----
 let seriesEpisodes = [];
 let seriesType = "audiobook";
+let seriesResult = null;
+let seriesLanguage = "";
 
 function renderSeriesList() {
   const from = parseInt($("#series-from").value);
@@ -364,6 +369,8 @@ function updateSeriesCount() {
 async function openSeriesDialog(result, type = "audiobook", language = "") {
   const dlg = $("#series-dialog");
   seriesType = type;
+  seriesResult = result;
+  seriesLanguage = language;
   const unit = t(type === "ebook" ? "series.unitVolumes" : "series.unitEpisodes");
   $("#series-title").textContent = result.series || t("series.fallbackTitle");
   $("#series-info").innerHTML =
@@ -409,6 +416,31 @@ $("#series-none").addEventListener("click", () => {
 });
 $("#series-cancel").addEventListener("click", () => $("#series-dialog").close());
 
+$("#series-watch").addEventListener("click", async () => {
+  const libId = $("#series-library").value;
+  if (!libId) {
+    toast(t("series.needLibrary", { type: seriesType === "ebook" ? "Ebook" : "Audiobook" }), true);
+    return;
+  }
+  const btn = $("#series-watch");
+  btn.disabled = true;
+  try {
+    await api("/api/series", {
+      method: "POST",
+      body: JSON.stringify({
+        media_type: seriesType, library_id: parseInt(libId),
+        series_id: seriesResult.series_id, source: seriesResult.source || "",
+        title: seriesResult.series || seriesResult.title, language: seriesLanguage,
+      }),
+    });
+    toast(t("watch.added"));
+  } catch (err) {
+    toast(err.status === 409 ? t("watch.already") : err.message, true);
+  } finally {
+    btn.disabled = false;
+  }
+});
+
 $("#series-submit").addEventListener("click", async () => {
   const libId = $("#series-library").value;
   if (!libId) {
@@ -699,6 +731,137 @@ function renderHistory() {
     .join("");
 }
 
+// ---- watched series ----
+let watches = [];
+
+async function loadWatches(path = "/api/series", opts = {}) {
+  try {
+    watches = await api(path, opts);
+  } catch (err) {
+    toast(err.message, true);
+    return;
+  }
+  renderWatches();
+}
+
+function renderWatches() {
+  const n = watches.reduce((sum, w) => sum + w.new.length, 0);
+  $("#watch-badge").textContent = n;
+  $("#watch-badge").hidden = n === 0;
+  const box = $("#watch-list");
+  if (!watches.length) {
+    box.innerHTML = `<p class="muted">${t("watch.empty")}</p>`;
+    return;
+  }
+  const locale = lang === "de" ? "de-DE" : "en-GB";
+  box.innerHTML = watches
+    .map((w) => {
+      const checked = w.checked_at ? new Date(w.checked_at).toLocaleString(locale) : "—";
+      const parts = w.new
+        .map((p) => `<tr>
+            <td>${p.volume ?? ""}</td>
+            <td>${esc(p.title)}${p.year ? ` <span class="muted">(${p.year})</span>` : ""}</td>
+            <td class="muted">${esc(p.authors)}</td>
+            <td class="row">
+              <button data-part="${p.id}" data-action="request">${t("common.request")}</button>
+              <button class="secondary" data-part="${p.id}" data-action="ignore">${t("watch.ignore")}</button>
+            </td>
+          </tr>`)
+        .join("");
+      return `<div class="watch">
+        <div class="row">
+          <strong>${esc(w.title)}</strong>
+          <span class="muted">${esc(w.library_name)} · ${esc(w.media_type)} · ${t("watch.checked", { at: checked })}</span>
+          <button class="danger" data-unwatch="${w.id}">${t("watch.remove")}</button>
+        </div>
+        ${w.error ? `<p class="muted error-text">${esc(t("watch.error", { error: w.error }))}</p>` : ""}
+        ${parts ? `<table><tbody>${parts}</tbody></table>` : `<p class="muted">${t("watch.nothingNew")}</p>`}
+      </div>`;
+    })
+    .join("");
+}
+
+$("#watch-list").addEventListener("click", async (e) => {
+  const btn = e.target.closest("button");
+  if (!btn) return;
+  try {
+    if (btn.dataset.part) {
+      btn.disabled = true;
+      await api("/api/series/parts", {
+        method: "POST",
+        body: JSON.stringify({ ids: [parseInt(btn.dataset.part)], action: btn.dataset.action }),
+      });
+      if (btn.dataset.action === "request") refreshMissingBadge();
+    } else if (btn.dataset.unwatch) {
+      if (!confirm(t("watch.confirmRemove"))) return;
+      await api(`/api/series/${btn.dataset.unwatch}`, { method: "DELETE" });
+    } else return;
+  } catch (err) {
+    toast(err.message, true);
+  }
+  loadWatches();
+});
+
+$("#watch-check").addEventListener("click", async () => {
+  const btn = $("#watch-check");
+  btn.disabled = true;
+  await loadWatches("/api/series/check", { method: "POST" });
+  btn.disabled = false;
+});
+
+// ---- system ----
+let healthIssues = [];
+let logRows = [];
+
+// also called after library changes, so a fixed root path clears the badge
+async function refreshHealth() {
+  try {
+    healthIssues = await api("/api/system/health");
+  } catch {
+    return;
+  }
+  const badge = $("#health-badge");
+  badge.textContent = healthIssues.length;
+  badge.hidden = !healthIssues.length;
+  badge.classList.toggle("error", healthIssues.some((i) => i.level === "error"));
+  badge.classList.toggle("warn", !healthIssues.some((i) => i.level === "error"));
+  renderHealth();
+}
+
+async function loadSystem() {
+  refreshHealth();
+  try {
+    logRows = await api("/api/system/logs");
+  } catch (err) {
+    toast(err.message, true);
+  }
+  renderLogs();
+}
+
+function renderHealth() {
+  $("#health-list").innerHTML = healthIssues.length
+    ? healthIssues.map((i) => `<li class="${i.level}">${esc(t("health." + i.code, i))}</li>`).join("")
+    : `<li class="ok">${t("system.healthy")}</li>`;
+}
+
+function renderLogs() {
+  const tbody = $("#log-table tbody");
+  if (!logRows.length) {
+    tbody.innerHTML = `<tr><td colspan="4" class="muted">${t("common.nothingHere")}</td></tr>`;
+    return;
+  }
+  const locale = lang === "de" ? "de-DE" : "en-GB";
+  const LEVEL_STATE = { WARNING: "warn", ERROR: "failed", CRITICAL: "failed" };
+  tbody.innerHTML = logRows
+    .map((r) => `<tr>
+        <td class="state">${esc(new Date(r.at).toLocaleString(locale))}</td>
+        <td class="state ${LEVEL_STATE[r.level] || ""}">${esc(r.level)}</td>
+        <td class="muted mono">${esc(r.logger)}</td>
+        <td class="mono">${esc(r.message)}</td>
+      </tr>`)
+    .join("");
+}
+
 // ---- request detail dialog ----
 let detailRequest = null;
 
@@ -1905,6 +2068,9 @@ function onLangChange() {
   renderRequests("missing");
   renderRequests("imported");
   renderHistory();
+  renderHealth();
+  renderLogs();
+  renderWatches();
   if (libraries.length) loadLibraries();
   const editId = $("#lib-form").dataset.editId;
   editId ? startLibraryEdit(parseInt(editId)) : endLibraryEdit();
@@ -1920,6 +2086,7 @@ async function showVersion() {
     // the version alone rarely moves, so the stamp is what tells deploys apart
     $("#app-version").textContent = `v${v.version} · ${v.build || v.built_at}`;
     $("#app-version").title = `${v.built_at} UTC${v.build ? " · " + v.build : ""}`;
+    $("#system-version").textContent = `v${v.version}${v.build ? " · " + v.build : ""} · ${v.built_at} UTC`;
   } catch {}
 }
 
@@ -1929,5 +2096,6 @@ updateLangButton();
 endLibraryEdit();
 loadLibraries();
 refreshMissingBadge();
+loadWatches();
 showVersion();
 showView();

static/i18n.js

@@ -47,6 +47,33 @@ const STRINGS = {
     "nav.import": "Import",
     "nav.settings": "Libraries",
     "nav.activity": "Aktivität",
+    "nav.series": "Serien",
+    "watch.button": "Beobachten",
+    "watch.buttonTitle": "Täglich nach neuen Teilen dieser Serie schauen",
+    "watch.added": "Serie wird beobachtet",
+    "watch.already": "Diese Serie wird schon beobachtet",
+    "watch.check": "Jetzt prüfen",
+    "watch.empty": "Noch keine Serie beobachtet. In der Suche unter „Ganze Serie…“ auf „Beobachten“ klicken.",
+    "watch.checked": "geprüft {at}",
+    "watch.error": "Letzte Prüfung fehlgeschlagen: {error}",
+    "watch.nothingNew": "Nichts Neues.",
+    "watch.ignore": "Ignorieren",
+    "watch.remove": "Nicht mehr beobachten",
+    "watch.confirmRemove": "Diese Serie nicht mehr beobachten?",
+    "nav.system": "System",
+    "system.health": "Zustand",
+    "system.healthy": "Alles in Ordnung.",
+    "system.version": "Version",
+    "system.logs": "Letzte Log-Einträge",
+    "system.level": "Stufe",
+    "system.source": "Quelle",
+    "system.message": "Meldung",
+    "health.download.missing": "Der Download-Ordner {path} existiert nicht.",
+    "health.download.readonly": "wordarr kann im Download-Ordner {path} nicht schreiben, Importe schlagen fehl.",
+    "health.library.missing": "Library „{name}“: Der Ordner {path} existiert nicht.",
+    "health.library.readonly": "Library „{name}“: wordarr kann in {path} nicht schreiben.",
+    "health.hardcover.token": "Kein Hardcover-Token gesetzt (WORDARR_HARDCOVER_TOKEN), die Ebook-Suche fällt auf Google Books und Open Library zurück.",
+    "health.abs.incomplete": "Audiobookshelf ist nur halb eingerichtet: WORDARR_ABS_URL und WORDARR_ABS_TOKEN müssen beide gesetzt sein.",
     "nav.langToggle": "Switch to English",
     "history.time": "Zeit",
     "history.event": "Ereignis",
@@ -295,6 +322,33 @@ const STRINGS = {
     "nav.import": "Import",
     "nav.settings": "Libraries",
     "nav.activity": "Activity",
+    "nav.series": "Series",
+    "watch.button": "Watch",
+    "watch.buttonTitle": "Look for new parts of this series every day",
+    "watch.added": "Series is being watched",
+    "watch.already": "This series is already watched",
+    "watch.check": "Check now",
+    "watch.empty": "No series watched yet. In the search, open “Whole series…” and click “Watch”.",
+    "watch.checked": "checked {at}",
+    "watch.error": "Last check failed: {error}",
+    "watch.nothingNew": "Nothing new.",
+    "watch.ignore": "Ignore",
+    "watch.remove": "Stop watching",
+    "watch.confirmRemove": "Stop watching this series?",
+    "nav.system": "System",
+    "system.health": "Health",
+    "system.healthy": "All good.",
+    "system.version": "Version",
+    "system.logs": "Recent log entries",
+    "system.level": "Level",
+    "system.source": "Source",
+    "system.message": "Message",
+    "health.download.missing": "The download folder {path} does not exist.",
+    "health.download.readonly": "wordarr cannot write to the download folder {path}, imports will fail.",
+    "health.library.missing": "Library “{name}”: the folder {path} does not exist.",
+    "health.library.readonly": "Library “{name}”: wordarr cannot write to {path}.",
+    "health.hardcover.token": "No Hardcover token set (WORDARR_HARDCOVER_TOKEN), ebook search falls back to Google Books and Open Library.",
+    "health.abs.incomplete": "Audiobookshelf is only half set up: WORDARR_ABS_URL and WORDARR_ABS_TOKEN must both be set.",
     "nav.langToggle": "Auf Deutsch umschalten",
     "history.time": "Time",
     "history.event": "Event",

static/index.html

@@ -20,8 +20,16 @@
         </button>
         <button data-view="imported" data-i18n="nav.imported"></button>
         <button data-view="import" data-i18n="nav.import"></button>
+        <button data-view="series">
+          <span data-i18n="nav.series"></span>
+          <span id="watch-badge" class="badge" hidden></span>
+        </button>
         <button data-view="activity" data-i18n="nav.activity"></button>
         <button data-view="settings" data-i18n="nav.settings"></button>
+        <button data-view="system">
+          <span data-i18n="nav.system"></span>
+          <span id="health-badge" class="badge" hidden></span>
+        </button>
         <button id="lang-toggle" class="secondary" data-i18n-title="nav.langToggle"></button>
       </nav>
     </header>
@@ -93,6 +101,7 @@
           </div>
           <div class="row">
             <button type="button" id="series-cancel" class="secondary" data-i18n="common.cancel"></button>
+            <button type="button" id="series-watch" class="secondary" data-i18n="watch.button" data-i18n-title="watch.buttonTitle"></button>
             <button type="button" id="series-submit" data-i18n="common.request"></button>
           </div>
         </dialog>
@@ -283,6 +292,13 @@
         </dialog>
       </section>
 
+      <section id="view-series" hidden>
+        <div class="bar">
+          <button type="button" id="watch-check" data-i18n="watch.check"></button>
+        </div>
+        <div id="watch-list"></div>
+      </section>
+
       <section id="view-activity" hidden>
         <div class="table-scroll">
           <table id="history-table">
@@ -299,6 +315,27 @@
         </div>
       </section>
 
+      <section id="view-system" hidden>
+        <h3 data-i18n="system.health"></h3>
+        <ul id="health-list"></ul>
+        <h3 data-i18n="system.version"></h3>
+        <p id="system-version" class="mono"></p>
+        <h3 data-i18n="system.logs"></h3>
+        <div class="table-scroll">
+          <table id="log-table">
+            <thead>
+              <tr>
+                <th data-i18n="history.time"></th>
+                <th data-i18n="system.level"></th>
+                <th data-i18n="system.source"></th>
+                <th data-i18n="system.message"></th>
+              </tr>
+            </thead>
+            <tbody></tbody>
+          </table>
+        </div>
+      </section>
+
       <section id="view-settings" hidden>
         <h3 data-i18n="lib.heading"></h3>
         <div class="table-scroll">

static/style.css

@@ -74,6 +74,17 @@ td.state { white-space: nowrap; font-size: 0.85rem; }
 td.state.done { color: var(--ok); }
 td.state.failed { color: #e08585; }
 td.state.running { color: var(--muted); }
+td.state.warn { color: var(--warn); }
+.badge.warn { background: var(--warn); color: #000; }
+.badge.error { background: var(--danger); }
+.watch { background: var(--panel); border: 1px solid var(--border); border-radius: 6px; padding: 0.7rem 0.9rem; margin-bottom: 0.8rem; }
+.watch .row:first-child { margin-top: 0; }
+.watch table { margin-top: 0.5rem; }
+.watch .error-text { color: #e08585; }
+#health-list { list-style: none; margin: 0.5rem 0 1rem; }
+#health-list li { background: var(--panel); border-left: 3px solid var(--warn); border-radius: 4px; padding: 0.5rem 0.8rem; margin: 0.3rem 0; }
+#health-list li.error { border-left-color: var(--danger); }
+#health-list li.ok { border-left-color: var(--ok); }
 .tag { display: inline-block; margin-left: 0.4rem; padding: 0.05rem 0.4rem; border-radius: 4px; background: var(--accent); color: #fff; font-size: 0.7rem; font-family: system-ui, sans-serif; vertical-align: 0.1em; }
 
 /* view modes (Missing/Importiert) */

tests/test_import_flow.py

@@ -1328,3 +1328,99 @@ def test_adopt_files_already_in_the_library(client):
     assert (root / "Tolkien/Der Hobbit/01.mp3").exists()  # nothing moved
     assert client.get(f"/api/import/library/{lib}").json()["items"] == []
     assert [h["event"] for h in client.get("/api/history").json()] == ["adopted"] * 2
+
+
+def test_health_reports_problems_as_codes(client, monkeypatch):
+    from wordarr import connect
+    from wordarr.metadata import hardcover
+    monkeypatch.setattr(hardcover, "TOKEN", "")
+    monkeypatch.setattr(connect, "ABS_URL", "http://abs")
+    monkeypatch.setattr(connect, "ABS_TOKEN", "")
+    gone = client.tmp_path / "gone"
+    client.post("/api/libraries", json={
+        "name": "Weg", "media_type": "ebook", "root_path": str(gone)})
+    client.post("/api/libraries", json={
+        "name": "Da", "media_type": "ebook", "root_path": str(client.downloads)})
+
+    issues = client.get("/api/system/health").json()
+    assert {(i["code"], i.get("name")) for i in issues} == {
+        ("library.missing", "Weg"), ("hardcover.token", None), ("abs.incomplete", None)}
+
+    monkeypatch.setattr(hardcover, "TOKEN", "x")
+    monkeypatch.setattr(connect, "ABS_URL", "")
+    gone.mkdir()
+    assert client.get("/api/system/health").json() == []
+
+
+def test_recent_logs_newest_first(client):
+    import logging
+    logging.getLogger("wordarr.test").info("first")
+    logging.getLogger("wordarr.test").warning("second")
+    rows = client.get("/api/system/logs").json()
+    assert [r["message"] for r in rows[:2]] == ["second", "first"]
+    assert rows[0]["level"] == "WARNING"
+
+
+def test_watched_series_suggests_only_new_parts(client, monkeypatch):
+    import asyncio
+    import datetime
+
+    from wordarr import db
+    from wordarr.api import series
+    from wordarr.metadata import SERIES_PROVIDERS
+    from wordarr.metadata.base import MetadataResult
+
+    def part(volume, external_id=""):
+        return MetadataResult(media_type="ebook", title=f"Band {volume}", volume=volume,
+                              series="Saga", external_id=external_id, source="hardcover")
+
+    hits = [part(1, "a1"), part(2, "a2")]
+    calls = []
+
+    async def lookup(series_id, title, language, source):
+        calls.append(series_id)
+        if hits is None:
+            raise RuntimeError("offline")
+        return hits
+
+    monkeypatch.setitem(SERIES_PROVIDERS, "ebook", lookup)
+    lib = client.post("/api/libraries", json={
+        "name": "Saga", "media_type": "ebook", "root_path": str(client.tmp_path)}).json()
+    client.post("/api/requests", json={"library_id": lib["id"], "title": "Band 3", "volume": 3})
+    watch = {"media_type": "ebook", "library_id": lib["id"], "series_id": "s1",
+             "source": "hardcover", "title": "Saga"}
+
+    resp = client.post("/api/series", json=watch)
+    assert resp.status_code == 200
+    assert resp.json()["new"] == []  # what exists today is not news
+    assert client.post("/api/series", json=watch).status_code == 409
+
+    hits += [part(3), part(4, "a4"), part(5, "a5")]  # 3 is requested already
+    [w] = client.post("/api/series/check").json()
+    new = {p["title"]: p["id"] for p in w["new"]}
+    assert set(new) == {"Band 4", "Band 5"}
+
+    client.post("/api/series/parts", json={"ids": [new["Band 4"]], "action": "request"})
+    client.post("/api/series/parts", json={"ids": [new["Band 5"]], "action": "ignore"})
+    missing = client.get("/api/requests?status=missing").json()
+    assert {r["title"] for r in missing} == {"Band 3", "Band 4"}
+    assert client.post("/api/series/check").json()[0]["new"] == []
+
+    hits = None
+    [w] = client.post("/api/series/check").json()
+    assert w["error"] == "offline"
+    assert client.post("/api/series", json={**watch, "series_id": "s2"}).status_code == 502
+
+    # the daily run only picks up what was checked more than a day ago
+    hits, calls[:] = [], []
+    asyncio.run(series.check_due())
+    assert calls == []
+    with db.SessionLocal() as session:
+        session.get(db.WatchedSeries, w["id"]).checked_at = (
+            datetime.datetime.now(datetime.UTC) - datetime.timedelta(days=2))
+        session.commit()
+    asyncio.run(series.check_due())
+    assert calls == ["s1"]
+
+    assert client.delete(f"/api/series/{w['id']}").status_code == 200
+    assert client.get("/api/series").json() == []

wordarr/api/series.py

@@ -0,0 +1,164 @@
+import asyncio
+import datetime
+import logging
+
+from fastapi import APIRouter, Depends, HTTPException
+from pydantic import BaseModel
+from sqlalchemy import or_, select
+from sqlalchemy.orm import Session
+
+from .. import db
+from ..db import BookRequest, Library, SeriesPart, WatchedSeries, get_session
+from ..metadata import SERIES_PROVIDERS
+
+router = APIRouter(prefix="/api/series", tags=["series"])
+log = logging.getLogger(__name__)
+
+PART_FIELDS = ("title", "authors", "narrator", "external_id", "year", "series",
+               "volume", "cover_url")
+
+
+def _now() -> datetime.datetime:
+    return datetime.datetime.now(datetime.UTC)
+
+
+def _key(r) -> str:
+    return r.external_id or f"{r.title.strip().lower()}|{r.volume}"
+
+
+async def check_watch(session: Session, w: WatchedSeries) -> None:
+    """Look the series up again. The first lookup only records what exists, so
+    just later parts become suggestions; so do parts nobody has requested yet."""
+    try:
+        hits = await SERIES_PROVIDERS[w.media_type](w.series_id, w.title, w.language, w.source)
+    except Exception as exc:
+        log.warning("series %r lookup failed: %s", w.title, exc)
+        w.error, w.checked_at = str(exc), _now()
+        return
+    initial = not w.parts
+    reqs = session.scalars(select(BookRequest).where(BookRequest.media_type == w.media_type)).all()
+    requested = {r.external_id for r in reqs if r.external_id}
+    requested |= {(r.title.strip().lower(), r.volume) for r in reqs}
+    seen = {p.key for p in w.parts}
+    for hit in hits:
+        if (key := _key(hit)) in seen:
+            continue
+        seen.add(key)
+        known = initial or hit.external_id in requested or (
+            hit.title.strip().lower(), hit.volume) in requested
+        w.parts.append(SeriesPart(key=key, state="known" if known else "new",
+                                  **{f: getattr(hit, f) for f in PART_FIELDS}))
+    w.error, w.checked_at = "", _now()
+
+
+async def check_due() -> None:
+    cutoff = (_now() - datetime.timedelta(days=1)).replace(tzinfo=None)  # SQLite stores naive
+    with db.SessionLocal() as session:
+        due = session.scalars(select(WatchedSeries).where(
+            or_(WatchedSeries.checked_at.is_(None), WatchedSeries.checked_at < cutoff))).all()
+        for w in due:
+            await check_watch(session, w)
+            session.commit()
+        if due:
+            log.info("checked %d watched series", len(due))
+
+
+async def run_daily() -> None:
+    """Wakes hourly and checks what is a day old, so restarts do not reset the clock."""
+    while True:
+        try:
+            await check_due()
+        except Exception:
+            log.exception("series check failed")
+        await asyncio.sleep(3600)
+
+
+def _out(w: WatchedSeries) -> dict:
+    checked = w.checked_at and w.checked_at.replace(tzinfo=datetime.UTC).isoformat()
+    return {
+        "id": w.id, "media_type": w.media_type, "library_id": w.library_id,
+        "library_name": w.library.name, "series_id": w.series_id, "source": w.source,
+        "title": w.title, "checked_at": checked, "error": w.error,
+        "new": [{"id": p.id, **{f: getattr(p, f) for f in PART_FIELDS}}
+                for p in w.parts if p.state == "new"],
+    }
+
+
+def _all(session: Session) -> list[dict]:
+    return [_out(w) for w in session.scalars(select(WatchedSeries).order_by(WatchedSeries.title))]
+
+
+@router.get("")
+def list_watches(session: Session = Depends(get_session)):
+    return _all(session)
+
+
+class WatchIn(BaseModel):
+    media_type: str
+    library_id: int
+    series_id: str
+    source: str = ""
+    title: str
+    language: str = ""
+
+
+@router.post("")
+async def create_watch(data: WatchIn, session: Session = Depends(get_session)):
+    if data.media_type not in SERIES_PROVIDERS:
+        raise HTTPException(400, f"no series lookup for media_type: {data.media_type}")
+    lib = session.get(Library, data.library_id)
+    if not lib:
+        raise HTTPException(404, "library not found")
+    if lib.media_type != data.media_type:
+        raise HTTPException(400, "library has a different media type")
+    if session.scalar(select(WatchedSeries).where(
+            WatchedSeries.media_type == data.media_type,
+            WatchedSeries.source == data.source,
+            WatchedSeries.series_id == data.series_id)):
+        raise HTTPException(409, "series is already watched")
+    w = WatchedSeries(**data.model_dump())
+    session.add(w)
+    await check_watch(session, w)
+    if w.error:  # without a first lookup every part would turn up as new later
+        session.rollback()
+        raise HTTPException(502, f"metadata provider error: {w.error}")
+    session.commit()
+    return _out(w)
+
+
+@router.delete("/{watch_id}")
+def delete_watch(watch_id: int, session: Session = Depends(get_session)):
+    w = session.get(WatchedSeries, watch_id)
+    if not w:
+        raise HTTPException(404, "series not found")
+    session.delete(w)
+    session.commit()
+    return {"ok": True}
+
+
+@router.post("/check")
+async def check_all(session: Session = Depends(get_session)):
+    for w in session.scalars(select(WatchedSeries)).all():
+        await check_watch(session, w)
+        session.commit()
+    return _all(session)
+
+
+class PartsIn(BaseModel):
+    ids: list[int]
+    action: str  # request | ignore
+
+
+@router.post("/parts")
+def handle_parts(data: PartsIn, session: Session = Depends(get_session)):
+    if data.action not in ("request", "ignore"):
+        raise HTTPException(400, f"invalid action: {data.action}")
+    parts = session.scalars(select(SeriesPart).where(
+        SeriesPart.id.in_(data.ids), SeriesPart.state == "new")).all()
+    for p in parts:
+        if data.action == "request":
+            session.add(BookRequest(media_type=p.watch.media_type, library_id=p.watch.library_id,
+                                    **{f: getattr(p, f) for f in PART_FIELDS}))
+        p.state = "requested" if data.action == "request" else "ignored"
+    session.commit()
+    return {"done": len(parts)}

wordarr/api/system.py

@@ -0,0 +1,44 @@
+import os
+from pathlib import Path
+
+from fastapi import APIRouter, Depends
+from sqlalchemy import select
+from sqlalchemy.orm import Session
+
+from .. import config, connect, logs
+from ..db import Library, get_session
+from ..metadata import hardcover
+
+router = APIRouter(prefix="/api/system", tags=["system"])
+
+
+def _dir_problem(path: Path) -> str | None:
+    if not path.is_dir():
+        return "missing"
+    if not os.access(path, os.W_OK | os.X_OK):
+        return "readonly"
+    return None
+
+
+@router.get("/health")
+def health(session: Session = Depends(get_session)):
+    """Problems only, as codes the UI translates; an empty list means healthy."""
+    issues = []
+    if problem := _dir_problem(config.DOWNLOAD_DIR):
+        issues.append({"code": f"download.{problem}", "level": "error",
+                       "path": str(config.DOWNLOAD_DIR)})
+    for lib in session.scalars(select(Library).order_by(Library.name)):
+        if problem := _dir_problem(Path(lib.root_path)):
+            issues.append({"code": f"library.{problem}", "level": "error",
+                           "name": lib.name, "path": lib.root_path})
+    if not hardcover.TOKEN:
+        issues.append({"code": "hardcover.token", "level": "warning"})
+    if bool(connect.ABS_URL) != bool(connect.ABS_TOKEN):
+        issues.append({"code": "abs.incomplete", "level": "warning"})
+    return issues
+
+
+@router.get("/logs")
+def recent_logs():
+    """Newest first."""
+    return list(reversed(logs.RECORDS))

wordarr/db.py

@@ -23,6 +23,8 @@ class Library(Base):
     language: Mapped[str] = mapped_column(String, default="")
 
     requests: Mapped[list["BookRequest"]] = relationship(back_populates="library")
+    watches: Mapped[list["WatchedSeries"]] = relationship(
+        back_populates="library", cascade="all, delete-orphan")
 
 
 class BookRequest(Base):
@@ -68,6 +70,47 @@ class History(Base):
     message: Mapped[str] = mapped_column(String, default="")
 
 
+class WatchedSeries(Base):
+    """A series looked up again now and then; new parts become suggestions."""
+
+    __tablename__ = "watched_series"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    media_type: Mapped[str] = mapped_column(String)
+    library_id: Mapped[int] = mapped_column(ForeignKey("libraries.id"))
+    series_id: Mapped[str] = mapped_column(String)
+    source: Mapped[str] = mapped_column(String, default="")
+    title: Mapped[str] = mapped_column(String)
+    language: Mapped[str] = mapped_column(String, default="")
+    checked_at: Mapped[datetime.datetime | None] = mapped_column(default=None)
+    error: Mapped[str] = mapped_column(String, default="")
+
+    library: Mapped[Library] = relationship(back_populates="watches")
+    parts: Mapped[list["SeriesPart"]] = relationship(
+        back_populates="watch", cascade="all, delete-orphan")
+
+
+class SeriesPart(Base):
+    """Every part a watch has seen, so a later lookup can tell what is new."""
+
+    __tablename__ = "series_parts"
+
+    id: Mapped[int] = mapped_column(primary_key=True)
+    watch_id: Mapped[int] = mapped_column(ForeignKey("watched_series.id"))
+    key: Mapped[str] = mapped_column(String)
+    state: Mapped[str] = mapped_column(String)  # known | new | requested | ignored
+    title: Mapped[str] = mapped_column(String)
+    authors: Mapped[str] = mapped_column(String, default="")
+    narrator: Mapped[str] = mapped_column(String, default="")
+    external_id: Mapped[str] = mapped_column(String, default="")
+    year: Mapped[int | None] = mapped_column(default=None)
+    series: Mapped[str] = mapped_column(String, default="")
+    volume: Mapped[int | None] = mapped_column(default=None)
+    cover_url: Mapped[str] = mapped_column(String, default="")
+
+    watch: Mapped[WatchedSeries] = relationship(back_populates="parts")
+
+
 def record(session, event: str, req: BookRequest, **fields: str) -> History:
     """Add a history row; it is saved with the caller's next commit."""
     row = History(event=event, request_id=req.id, title=req.title,

wordarr/logs.py

@@ -0,0 +1,30 @@
+"""Keep the latest log records in memory for the system page."""
+import collections
+import datetime
+import logging
+
+# shortcut: lost on restart, write to /config if older entries are ever needed
+RECORDS: collections.deque[dict] = collections.deque(maxlen=200)
+
+
+class _Buffer(logging.Handler):
+    def emit(self, record: logging.LogRecord) -> None:
+        RECORDS.append({
+            "at": datetime.datetime.fromtimestamp(record.created, datetime.UTC).isoformat(),
+            "level": record.levelname,
+            "logger": record.name,
+            "message": self.format(record),
+        })
+
+
+def install() -> None:
+    """A handler on root would silence the last-resort stderr output, so
+    basicConfig keeps the container log. uvicorn's loggers do not propagate,
+    its errors are caught on uvicorn.error itself."""
+    if any(isinstance(h, _Buffer) for h in logging.getLogger().handlers):
+        return
+    logging.basicConfig(format="%(levelname)s:%(name)s: %(message)s")
+    logging.getLogger("wordarr").setLevel(logging.INFO)
+    buffer = _Buffer(logging.INFO)
+    logging.getLogger().addHandler(buffer)
+    logging.getLogger("uvicorn.error").addHandler(buffer)

wordarr/main.py

@@ -1,17 +1,22 @@
+import asyncio
 from contextlib import asynccontextmanager
 from pathlib import Path
 
 from fastapi import FastAPI
 from fastapi.staticfiles import StaticFiles
 
-from . import db, version
+from . import db, logs, version
-from .api import fs, history, imports, libraries, requests, search
+from .api import fs, history, imports, libraries, requests, search, series, system
+
+logs.install()
 
 
 @asynccontextmanager
 async def lifespan(app: FastAPI):
     db.init_db()
+    watcher = asyncio.create_task(series.run_daily())
     yield
+    watcher.cancel()
 
 
 app = FastAPI(title="wordarr", lifespan=lifespan)
@@ -22,6 +27,8 @@ app.include_router(requests.router)
 app.include_router(imports.router)
 app.include_router(fs.router)
 app.include_router(history.router)
+app.include_router(system.router)
+app.include_router(series.router)
 
 
 @app.get("/api/version")