Gate pedigree behind a dog id set in settings

The pedigree view is now opt-in and tied to your own dog rather than an
always-present free-text search. Add the dog's SKK chip or registration
number in Settings (it rides the synced profile alongside name and
birthday); the 🌳 button stays hidden until one is set, then opens the
page and loads that dog's ancestry directly.

Make repeat opens cheap: memoise the id->hundid resolution server-side so
a cached tree is served without contacting SKK at all, and mirror the
finished tree in localStorage so the page paints instantly and shows the
last-known tree offline.

Adds config.pedigree_id (with an in-place migration for existing DBs).

README.md

@@ -96,19 +96,23 @@ events, profile and photos.
 
 ## Pedigree lookup
 
-The 🌳 page looks up a dog in **SKK Hunddata** by ISO chip number or
+Set your dog's SKK chip or registration number in **Settings** (it rides the
-registration number and renders its ancestry as a tree.
+synced profile, next to name and birthday). Once set, a 🌳 button appears that
+opens a page rendering that dog's ancestry as a tree.
 
 - SKK has no public API, so the server drives the interactive site the way a
-  browser would: it resolves the input to SKK's internal dog id, fetches the
+  browser would: it resolves the id to SKK's internal dog id, fetches the
   pedigree page (7 generations per request), and follows each generation's leaves
   deeper. A lookup returns the first generations immediately and keeps crawling in
   the background; the client polls and fills the tree in as ancestors arrive.
 - Because a deep crawl is dozens of sequential upstream requests, finished trees
-  are cached per dog in the `pedigree_cache` table (pedigrees don't change), so a
+  are cached per dog in the `pedigree_cache` table (pedigrees don't change), and
-  dog is only ever crawled once and repeat lookups are instant.
+  the id→dog resolution is memoised, so a dog is only ever crawled once and repeat
-- The lookup is behind auth like the rest of `/api/*`, and is **online-only** —
+  opens hit SKK zero times. The client also mirrors the finished tree in
-  it needs to reach SKK.
+  `localStorage`, so the page paints instantly and shows the last-known tree even
+  offline.
+- The lookup is behind auth like the rest of `/api/*`; the first trace of a new
+  dog needs to reach SKK, but after that it works from cache (including offline).
 
 ## Use it on NixOS
 

server/main.go

@@ -28,9 +28,9 @@ type Event struct {
 	Type       string  `json:"type"`
 	At         int64   `json:"at"`
 	Note       string  `json:"note"`
-	PhotoID    string  `json:"photoId,omitempty"` // photo UUIDs, comma-separated (legacy events hold one)
+	PhotoID    string  `json:"photoId,omitempty"`    // photo UUIDs, comma-separated (legacy events hold one)
-	Weight     float64 `json:"weight,omitempty"` // kilograms, for "weight" events
+	Weight     float64 `json:"weight,omitempty"`     // kilograms, for "weight" events
-	Grams      float64 `json:"grams,omitempty"`  // food eaten, for "eat" events
+	Grams      float64 `json:"grams,omitempty"`      // food eaten, for "eat" events
 	ExerciseID string  `json:"exerciseId,omitempty"` // for "training" events
 	UpdatedAt  int64   `json:"updatedAt"`
 	Deleted    bool    `json:"deleted,omitempty"`
@@ -60,9 +60,12 @@ func validBirthday(s string) bool { return s == "" || birthdayRE.MatchString(s)
 // every client sees the same values without configuring each device. UpdatedAt
 // drives last-write-wins, mirroring how events sync.
 type Config struct {
-	Name      string `json:"name"`
+	Name     string `json:"name"`
-	Birthday  string `json:"birthday"`
+	Birthday string `json:"birthday"`
-	UpdatedAt int64  `json:"updatedAt"`
+	// PedigreeID is the dog's SKK chip or registration number. When set, the app
+	// unlocks the pedigree view and looks this dog up; empty means no pedigree.
+	PedigreeID string `json:"pedigreeId"`
+	UpdatedAt  int64  `json:"updatedAt"`
 }
 
 type ConfigStore struct {
@@ -78,8 +81,8 @@ func (cs *ConfigStore) get(userID string) Config {
 	// One profile row per user. A missing row is the pre-configuration state,
 	// so a zero-value Config is the right answer.
 	err := cs.db.QueryRow(
-		`SELECT name, birthday, updated FROM config WHERE user_id = ?`, userID,
+		`SELECT name, birthday, pedigree_id, updated FROM config WHERE user_id = ?`, userID,
-	).Scan(&c.Name, &c.Birthday, &c.UpdatedAt)
+	).Scan(&c.Name, &c.Birthday, &c.PedigreeID, &c.UpdatedAt)
 	if err != nil && !errors.Is(err, sql.ErrNoRows) {
 		log.Printf("config get: %v", err)
 	}
@@ -92,12 +95,13 @@ func (cs *ConfigStore) merge(userID string, in Config) (Config, error) {
 	// The upsert's WHERE clause enforces last-write-wins: the incoming row only
 	// replaces the stored one when it is strictly newer.
 	_, err := cs.db.Exec(`
-		INSERT INTO config (user_id, name, birthday, updated)
+		INSERT INTO config (user_id, name, birthday, pedigree_id, updated)
-		VALUES (?, ?, ?, ?)
+		VALUES (?, ?, ?, ?, ?)
 		ON CONFLICT(user_id) DO UPDATE SET
-			name = excluded.name, birthday = excluded.birthday, updated = excluded.updated
+			name = excluded.name, birthday = excluded.birthday,
+			pedigree_id = excluded.pedigree_id, updated = excluded.updated
 		WHERE excluded.updated > config.updated`,
-		userID, in.Name, in.Birthday, in.UpdatedAt)
+		userID, in.Name, in.Birthday, in.PedigreeID, in.UpdatedAt)
 	if err != nil {
 		return Config{}, err
 	}
@@ -295,10 +299,11 @@ func openDB(path string) (*sql.DB, error) {
 		);
 		CREATE INDEX IF NOT EXISTS idx_exercises_user ON exercises(user_id);
 		CREATE TABLE IF NOT EXISTS config (
-			user_id  TEXT PRIMARY KEY,
+			user_id     TEXT PRIMARY KEY,
-			name     TEXT NOT NULL DEFAULT '',
+			name        TEXT NOT NULL DEFAULT '',
-			birthday TEXT NOT NULL DEFAULT '',
+			birthday    TEXT NOT NULL DEFAULT '',
-			updated  INTEGER NOT NULL DEFAULT 0
+			pedigree_id TEXT NOT NULL DEFAULT '',
+			updated     INTEGER NOT NULL DEFAULT 0
 		);
 		CREATE TABLE IF NOT EXISTS users (
 			id       TEXT PRIMARY KEY,
@@ -391,6 +396,15 @@ func migrateSchema(db *sql.DB) error {
 			}
 		}
 	}
+	hasPedigree, err := columnExists(db, "config", "pedigree_id")
+	if err != nil {
+		return err
+	}
+	if !hasPedigree {
+		if _, err := db.Exec(`ALTER TABLE config ADD COLUMN pedigree_id TEXT NOT NULL DEFAULT ''`); err != nil {
+			return err
+		}
+	}
 	return nil
 }
 
@@ -703,6 +717,10 @@ func main() {
 			if len(in.Name) > 100 {
 				in.Name = in.Name[:100]
 			}
+			in.PedigreeID = strings.TrimSpace(in.PedigreeID)
+			if len(in.PedigreeID) > 64 {
+				in.PedigreeID = in.PedigreeID[:64]
+			}
 			if !validBirthday(in.Birthday) {
 				http.Error(w, "invalid birthday (want YYYY-MM-DD)", http.StatusBadRequest)
 				return

server/pedigree.go

@@ -581,10 +581,28 @@ type pedManager struct {
 
 	mu   sync.Mutex
 	jobs map[string]*pedJob // keyed by hundid (coalesces duplicate lookups)
+
+	resolveMu sync.Mutex
+	resolved  map[string]string // query -> hundid, so a cache hit skips SKK entirely
 }
 
 func newPedManager(db *sql.DB) *pedManager {
-	return &pedManager{db: db, jobs: map[string]*pedJob{}}
+	return &pedManager{db: db, jobs: map[string]*pedJob{}, resolved: map[string]string{}}
+}
+
+func (m *pedManager) rememberResolve(q, hundid string) {
+	if q == "" || hundid == "" {
+		return
+	}
+	m.resolveMu.Lock()
+	m.resolved[q] = hundid
+	m.resolveMu.Unlock()
+}
+
+func (m *pedManager) resolvedHundid(q string) string {
+	m.resolveMu.Lock()
+	defer m.resolveMu.Unlock()
+	return m.resolved[q]
 }
 
 func (m *pedManager) activeCount() int {
@@ -751,6 +769,18 @@ func (m *pedManager) handleLookup(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	// Fast path: if we've resolved this query before and its tree is cached, serve
+	// it without contacting SKK at all (repeat opens of your own dog's pedigree).
+	if hundid := m.resolvedHundid(q); hundid != "" {
+		if subj, nodes, ok := m.cached(hundid); ok {
+			writeJSON(w, pedLookupResponse{
+				Status: "done", Hundid: subj.Hundid, Subject: &subj,
+				Generations: maxGenerations(nodes), Nodes: nodes,
+			})
+			return
+		}
+	}
+
 	client, err := newSKKClient()
 	if err != nil {
 		http.Error(w, "server error", http.StatusInternalServerError)
@@ -776,6 +806,7 @@ func (m *pedManager) handleLookup(w http.ResponseWriter, r *http.Request) {
 		return
 	}
 	subject := rowToSubject(rows[0])
+	m.rememberResolve(q, subject.Hundid)
 
 	if subj, nodes, ok := m.cached(subject.Hundid); ok {
 		writeJSON(w, pedLookupResponse{

src/app.js

@@ -214,14 +214,15 @@
   function loadConfig() {
     try {
       const parsed = JSON.parse(localStorage.getItem(configKey()));
-      if (!parsed || typeof parsed !== "object") return { name: "", birthday: "", updatedAt: 0 };
+      if (!parsed || typeof parsed !== "object") return { name: "", birthday: "", pedigreeId: "", updatedAt: 0 };
       return {
         name: parsed.name || "",
         birthday: parsed.birthday || "",
+        pedigreeId: parsed.pedigreeId || "",
         updatedAt: Number.isFinite(parsed.updatedAt) ? parsed.updatedAt : 0,
       };
     } catch {
-      return { name: "", birthday: "", updatedAt: 0 };
+      return { name: "", birthday: "", pedigreeId: "", updatedAt: 0 };
     }
   }
 
@@ -2036,11 +2037,13 @@
       const server = {
         name: body.name || "",
         birthday: body.birthday || "",
+        pedigreeId: body.pedigreeId || "",
         updatedAt: Number.isFinite(body.updatedAt) ? body.updatedAt : 0,
       };
       if (server.updatedAt > local.updatedAt) {
         saveConfig(server);
         renderHeader();
+        refreshPedigreeButton();
       } else if (local.updatedAt > server.updatedAt) {
         await pushConfig(local);
       }
@@ -2060,7 +2063,7 @@
     const body = await res.json();
     // Adopt the server's answer if it turned out to be newer (another client won).
     if (Number.isFinite(body.updatedAt) && body.updatedAt > cfg.updatedAt) {
-      saveConfig({ name: body.name || "", birthday: body.birthday || "", updatedAt: body.updatedAt });
+      saveConfig({ name: body.name || "", birthday: body.birthday || "", pedigreeId: body.pedigreeId || "", updatedAt: body.updatedAt });
       renderHeader();
     }
   }
@@ -2375,6 +2378,7 @@
   const settingsForm     = document.getElementById("settings-form");
   const settingsName     = document.getElementById("settings-name");
   const settingsBirthday = document.getElementById("settings-birthday");
+  const settingsPedigree = document.getElementById("settings-pedigree");
   const settingsTheme    = document.getElementById("settings-theme");
 
   // Apply live so the toggle previews immediately (independent of Save/Cancel).
@@ -2386,6 +2390,7 @@
     const cfg = loadConfig();
     settingsName.value     = cfg.name;
     settingsBirthday.value = cfg.birthday;
+    settingsPedigree.value = cfg.pedigreeId;
     settingsTheme.checked  = effectiveTheme() === "dark";
     settingsDialog.showModal();
     setTimeout(() => settingsName.focus(), 50);
@@ -2398,10 +2403,12 @@
     const cfg = {
       name: settingsName.value.trim(),
       birthday: settingsBirthday.value,
+      pedigreeId: settingsPedigree.value.trim(),
       updatedAt: Date.now(),
     };
     saveConfig(cfg);       // cache locally for instant + offline paint
     renderHeader();
+    refreshPedigreeButton();
     settingsDialog.close();
     try {
       await pushConfig(cfg);
@@ -2421,25 +2428,39 @@
   // server returns the first generations immediately and crawls deeper in the
   // background; we poll for that and re-render as ancestors arrive. Online-only.
   const pedScreen  = document.getElementById("pedigree-screen");
-  const pedForm    = document.getElementById("pedigree-form");
-  const pedQ       = document.getElementById("pedigree-q");
   const pedStatus  = document.getElementById("pedigree-status");
   const pedChoose  = document.getElementById("pedigree-choose");
   const pedSubject = document.getElementById("pedigree-subject");
   const pedTree    = document.getElementById("pedigree-tree");
+  const pedBtn     = document.getElementById("pedigree-btn");
+  const pedRefresh = document.getElementById("pedigree-refresh");
 
   const PED_OPEN_DEPTH = 4; // generations shown expanded by default; deeper collapse
   let pedPollTimer = null;
   let pedNodes = {};        // latest ancestry map, for the progress count
-  const pedQKey = () => `puppy-tracker:${currentUser.id}:pedigree-q:v1`;
+
+  // The looked-up tree is cached locally per dog id, so reopening the page paints
+  // instantly and still shows the last-known tree offline. The server caches it
+  // too (per dog, permanently); this is just the client-side mirror.
+  const pedCacheKey = (id) => `puppy-tracker:${currentUser.id}:pedigree:${id}:v1`;
+  function loadPedCache(id) {
+    try { return JSON.parse(localStorage.getItem(pedCacheKey(id))) || null; } catch { return null; }
+  }
+  function savePedCache(id, subject, nodes) {
+    try { localStorage.setItem(pedCacheKey(id), JSON.stringify({ subject, nodes })); } catch { /* ignore */ }
+  }
+
+  // Show the 🌳 button only once a pedigree id is set in Settings.
+  function refreshPedigreeButton() {
+    pedBtn.hidden = !loadConfig().pedigreeId;
+  }
 
   function openPedigree() {
+    const id = loadConfig().pedigreeId;
     appEl.hidden = true;
     pedScreen.hidden = false;
-    if (!pedQ.value) {
+    if (!id) { setPedStatus("Set your dog's SKK id in Settings to see its pedigree.", ""); return; }
-      try { pedQ.value = localStorage.getItem(pedQKey()) || ""; } catch { /* ignore */ }
+    lookupPedigree(id);
-    }
-    setTimeout(() => pedQ.focus(), 50);
   }
   function closePedigree() {
     stopPedPoll();
@@ -2450,15 +2471,11 @@
     if (pedPollTimer) { clearTimeout(pedPollTimer); pedPollTimer = null; }
   }
 
-  document.getElementById("pedigree-btn").addEventListener("click", openPedigree);
+  pedBtn.addEventListener("click", openPedigree);
   document.getElementById("pedigree-back").addEventListener("click", closePedigree);
-
+  pedRefresh.addEventListener("click", () => {
-  pedForm.addEventListener("submit", (e) => {
+    const id = loadConfig().pedigreeId;
-    e.preventDefault();
+    if (id) lookupPedigree(id);
-    const q = pedQ.value.trim();
-    if (!q) return;
-    try { localStorage.setItem(pedQKey(), q); } catch { /* ignore */ }
-    lookupPedigree(q);
   });
 
   async function lookupPedigree(q) {
@@ -2466,11 +2483,20 @@
     pedChoose.hidden = true;  pedChoose.textContent = "";
     pedSubject.hidden = true; pedSubject.textContent = "";
     pedTree.textContent = "";
+    pedNodes = {};
+
+    // Paint the cached tree first so the page is instant (and works offline).
+    const cached = loadPedCache(q);
+    if (cached && cached.nodes) {
+      renderSubject(cached.subject);
+      renderTree(cached.nodes);
+    }
     if (!navigator.onLine) {
-      setPedStatus("Pedigree lookup needs an internet connection.", "error");
+      setPedStatus(cached ? "Offline — showing the last saved pedigree." : "Pedigree needs an internet connection.",
+        cached ? "" : "error");
       return;
     }
-    setPedStatus("Looking up…", "busy");
+    setPedStatus(cached ? "Refreshing…" : "Looking up…", "busy");
     let res;
     try {
       res = await fetch("api/pedigree", {
@@ -2479,11 +2505,15 @@
         body: JSON.stringify({ q }),
       });
     } catch {
-      setPedStatus("Couldn't reach the server. Check your connection and try again.", "error");
+      setPedStatus(cached ? "Offline — showing the last saved pedigree." : "Couldn't reach the server. Try again.",
+        cached ? "" : "error");
       return;
     }
     if (res.status === 401) { handleLoggedOut(); return; }
-    if (res.status === 404) { setPedStatus(`No dog found for “${q}”.`, "error"); return; }
+    if (res.status === 404) {
+      setPedStatus("Couldn't find that dog in SKK — check the ID in Settings.", "error");
+      return;
+    }
     if (!res.ok) {
       const msg = (await res.text().catch(() => "")).trim();
       setPedStatus(msg || `Lookup failed (HTTP ${res.status}).`, "error");
@@ -2494,14 +2524,15 @@
     renderSubject(data.subject);
     renderTree(data.nodes || {});
     if (data.status === "done") {
+      savePedCache(q, data.subject, data.nodes || {});
       setPedDone();
     } else {
       setPedStatus(`Tracing ancestry… ${pedCountText()}`, "busy");
-      pollPedigree(data.jobId);
+      pollPedigree(data.jobId, q, data.subject);
     }
   }
 
-  function pollPedigree(jobId) {
+  function pollPedigree(jobId, q, subject) {
     stopPedPoll();
     const tick = async () => {
       let res;
@@ -2511,7 +2542,7 @@
       if (!res.ok) { setPedStatus("Lost track of the pedigree crawl.", "error"); return; }
       const data = await res.json();
       renderTree(data.nodes || {});
-      if (data.status === "done")  { setPedDone(); return; }
+      if (data.status === "done")  { savePedCache(q, subject, data.nodes || {}); setPedDone(); return; }
       if (data.status === "error") { setPedStatus(data.error || "Pedigree crawl failed.", "error"); return; }
       setPedStatus(`Tracing ancestry… ${pedCountText()}`, "busy");
       pedPollTimer = setTimeout(tick, 1500);
@@ -2584,10 +2615,7 @@
       b.append(nameEl, metaEl);
       b.addEventListener("click", () => {
         pedChoose.hidden = true;
-        const q = (m.Regnr || "").trim() || nm;
+        lookupPedigree((m.Regnr || "").trim() || nm);
-        pedQ.value = q;
-        try { localStorage.setItem(pedQKey(), q); } catch { /* ignore */ }
-        lookupPedigree(q);
       });
       pedChoose.append(b);
     });
@@ -3113,6 +3141,7 @@
 
     setStatus();
     render();
+    refreshPedigreeButton();
     sync();
     syncConfig();
   }

src/changelog.json

@@ -1,5 +1,5 @@
 [
-  { "date": "2026-07-26", "text": "New 🌳 Pedigree page: look up any dog in SKK Hunddata by chip or registration number and explore its ancestry as a tree — the first generations show at once, then the line fills in further back as it's traced" },
+  { "date": "2026-07-26", "text": "New 🌳 Pedigree page: add your dog's SKK chip or registration number in Settings to unlock it, then explore its ancestry as a tree — the first generations show at once and the line fills in further back as it's traced from SKK Hunddata. It's cached, so it reopens instantly and works offline" },
   { "date": "2026-07-24", "text": "The age counter reads \"16 weeks (3 months and 3 weeks) old\" so weeks and months line up; past 4 months it drops the weeks and shows just months (e.g. \"5 months and 2 weeks old\")" },
   { "date": "2026-07-17", "text": "The Sleep trend chart follows the selected day — pick a past day to see its full curve against the day before and the average leading up to it" },
   { "date": "2026-07-15", "text": "The Sleep trend y-axis is stretched above 10h, giving the hours around the sleep goal most of the chart" },

src/index.html

@@ -70,7 +70,7 @@
         <div id="puppy-age" class="puppy-age" hidden></div>
       </div>
       <div class="header-actions">
-        <button type="button" id="pedigree-btn" class="ghost icon-btn" aria-label="Pedigree" title="Pedigree">🌳</button>
+        <button type="button" id="pedigree-btn" class="ghost icon-btn" aria-label="Pedigree" title="Pedigree" hidden>🌳</button>
         <button type="button" id="settings-btn" class="ghost icon-btn" aria-label="Settings" title="Settings">⚙️</button>
         <button type="button" id="logout-btn" class="ghost icon-btn" aria-label="Log out" title="Log out">🚪</button>
         <div id="online-status" class="status-pill"></div>
@@ -282,15 +282,11 @@
         <h1>🌳 Pedigree</h1>
       </header>
       <main class="pedigree-main">
-        <form id="pedigree-form" class="pedigree-form">
-          <input type="text" id="pedigree-q" autocomplete="off" spellcheck="false"
-                 placeholder="Chip or registration number" aria-label="Dog chip or registration number" />
-          <button type="submit" id="pedigree-lookup">Look up</button>
-        </form>
         <p class="muted-note pedigree-hint">
-          Looks up a dog in <strong>SKK Hunddata</strong> by ISO chip number
+          Your dog's ancestry from <strong>SKK Hunddata</strong>, traced from the
-          (e.g. 752095600044144) or registration number (e.g. SE23536/2026),
+          ID set in Settings. The first generations show at once, then the line
-          then traces its ancestry. Needs an internet connection.
+          fills in further back.
+          <button type="button" id="pedigree-refresh" class="linklike">Refresh</button>
         </p>
         <p id="pedigree-status" class="pedigree-status" hidden></p>
         <div id="pedigree-choose" class="pedigree-choose" hidden></div>
@@ -319,6 +315,11 @@
         <label>Birthday
           <input type="date" id="settings-birthday" />
         </label>
+        <label>Pedigree ID
+          <input type="text" id="settings-pedigree" autocomplete="off" spellcheck="false"
+                 placeholder="SKK chip or reg. number (optional)" />
+        </label>
+        <p class="settings-hint">Set your dog's SKK chip or registration number to unlock the 🌳 pedigree page.</p>
         <label class="toggle-row">
           <span>Dark mode</span>
           <input type="checkbox" id="settings-theme" role="switch" class="switch" />

src/style.css

@@ -324,6 +324,7 @@ button.danger { background: var(--danger); }
   font-weight: normal;
 }
 .timing-hint { margin: 10px 4px 0; line-height: 1.4; }
+.settings-hint { color: var(--muted); font-size: 0.8rem; margin: -4px 0 4px; line-height: 1.4; }
 
 .history-controls {
   display: flex;
@@ -1066,31 +1067,6 @@ section.collapsed > :not(h2) { display: none; }
 }
 .pedigree-header h1 { font-size: 1.4rem; }
 
-.pedigree-form {
-  display: flex;
-  gap: 8px;
-  margin: 8px 0 6px;
-}
-.pedigree-form input {
-  flex: 1 1 auto;
-  min-width: 0;
-  padding: 10px 12px;
-  font-size: 1rem;
-  border: 1px solid var(--border);
-  border-radius: var(--radius);
-  background: var(--surface);
-  color: var(--text);
-}
-.pedigree-form button {
-  flex: 0 0 auto;
-  padding: 10px 16px;
-  font-size: 1rem;
-  border: none;
-  border-radius: var(--radius);
-  background: var(--accent);
-  color: #fff;
-  cursor: pointer;
-}
 .pedigree-hint { margin: 4px 0 12px; }
 
 .pedigree-status {