library: renamed A Room for Books; multi-tags; borrower sign-in (card number + password) with My books, renew and change password; AR pop-up/frame

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013wi3ZSot4XbUViwRFgLpRf

library/quickadd/app.py

@@ -9,6 +9,7 @@ A tiny web app that sits next to Koha. For each ISBN/UPC it:
 Standard library only; Z39.50 is done by shelling out to yaz-client.
 """
 import base64
+import hashlib
 import hmac
 import json
 import os
@@ -353,7 +354,7 @@ def find_existing(code):
 SETTINGS_FILE = os.path.join(DATA_DIR, "settings.json")
 COUNTER_FILE = os.path.join(DATA_DIR, "counter.json")
 MIN_WIDTH, MAX_WIDTH = 7, 10     # 6 all-digit Code 39 symbols can be misread as Code 32 by some scanners
-DEFAULT_SETTINGS = {"barcode_mode": "auto", "width": MIN_WIDTH, "location": ""}
+DEFAULT_SETTINGS = {"barcode_mode": "auto", "width": MIN_WIDTH, "location": "", "patron_password_mode": "generated", "patron_password": ""}
 BARCODE_MODES = ("auto", "scan", "none")
 LOCK = threading.RLock()
 
@@ -388,6 +389,12 @@ def clean_settings(payload, current):
             s["width"] = min(max(int(payload["width"]), MIN_WIDTH), MAX_WIDTH)
         except (TypeError, ValueError):
             pass
+    if payload.get("patron_password_mode") in ("generated", "same"):
+        s["patron_password_mode"] = payload["patron_password_mode"]
+    if "patron_password" in payload:
+        pw = str(payload["patron_password"] or "").strip()
+        if pw == "" or 4 <= len(pw) <= 40:
+            s["patron_password"] = pw
     if "location" in payload:
         loc = payload["location"] or ""
         if loc == "" or valid_location(loc):
@@ -763,7 +770,7 @@ def _shape_book(b, items, where):
     shelves = sorted({where.get(i.get("location"), "") for i in mine} - {""})
     colls = {c["value"]: c["label"] for c in get_collections()}
     collections = sorted({colls.get(i.get("collection_code"), "") for i in mine} - {""})
-    return {"collections": collections, "id": b["biblio_id"], "title": (b.get("title") or "").rstrip(" /:"), "author": b.get("author") or "",
+    return {"tags": _tags_load().get(str(b["biblio_id"]), []), "collections": collections, "id": b["biblio_id"], "title": (b.get("title") or "").rstrip(" /:"), "author": b.get("author") or "",
             "year": b.get("copyright_date") or "", "isbn": b.get("isbn") or "", "type": b.get("item_type") or "",
             "copies": len(mine), "out": out, "shelves": shelves,
             "callnumber": next((i.get("callnumber") for i in mine if i.get("callnumber")), "") or ""}
@@ -774,7 +781,7 @@ def op_library(qs):
     def one(k):
         return (qs.get(k) or [""])[0]
     term = re.sub(r"[%_\\]", "", one("q")).strip()[:80]
-    shelf, itype, status, coll = one("shelf"), one("type"), one("status"), one("collection")
+    shelf, itype, status, coll, tag = one("shelf"), one("type"), one("status"), one("collection"), one("tag")
     sort = one("sort") or "title"
     try:
         page = max(1, int(one("page") or 1))
@@ -784,6 +791,11 @@ def op_library(qs):
     if term:
         like = {"-like": "%" + term + "%"}
         conds.append({"-or": [{"title": like}, {"author": like}, {"isbn": like}, {"ean": like}]})
+    if tag:
+        ids_t = sorted(int(k) for k, v in _tags_load().items() if any(t.lower() == tag.lower() for t in v))
+        if not ids_t:
+            return {"books": [], "page": page, "more": False}
+        conds.append({"biblio_id": ids_t})
     order = {"title": "title", "author": "author", "new": "-biblio_id"}.get(sort, "title")
     item_q = {}
     if shelf == "-":
@@ -860,7 +872,8 @@ def op_book(biblio_id, staff):
             "isbn": b.get("isbn") or "", "publisher": b.get("publisher") or "", "pages": b.get("pages") or "",
             "edition": b.get("edition_statement") or "", "summary": b.get("abstract") or b.get("notes") or "",
             "series": b.get("series_title") or "", "type": b.get("item_type") or "", "copies": copies,
-            "shelves": get_locations(), "collections": get_collections()}
+            "shelves": get_locations(), "collections": get_collections(),
+            "tags": _tags_load().get(str(b["biblio_id"]), []), "all_tags": tag_counts()}
 
 
 def op_item_update(payload):
@@ -903,6 +916,9 @@ def op_book_delete(payload):
             koha("DELETE", "/items/%d" % i["item_id"])
             forget(i["item_id"])
         koha("DELETE", "/biblios/%d" % biblio_id)
+        d = _tags_load()
+        if d.pop(str(biblio_id), None) is not None:
+            save_json(TAGS_FILE, d)
     return 200, {"status": "deleted"}
 
 
@@ -1093,7 +1109,15 @@ def op_patron_add(payload):
         if e.status == 409 or "already exists" in e.body:
             return 200, {"status": "duplicate", "message": "Someone named %s is already in the library." % _patron_name(body)}
         raise
-    return 200, dict(_shape_patron(p), status="added")
+    out = dict(_shape_patron(p), status="added")
+    if not payload.get("nologin"):
+        pw = new_password()
+        try:
+            set_patron_password(p["patron_id"], pw)
+            out["password"] = pw
+        except KohaError:
+            out["password"] = ""
+    return 200, out
 
 
 # ------------------------------------------------ new shelves / collections, QR codes, book info
@@ -1326,6 +1350,183 @@ def export_csv():
     return out.getvalue().encode("utf-8-sig")
 
 
+# ------------------------------------------------------------------ tags
+TAGS_FILE = os.path.join(DATA_DIR, "tags.json")
+
+
+def _tags_load():
+    try:
+        d = json.load(open(TAGS_FILE))
+        return d if isinstance(d, dict) else {}
+    except (OSError, ValueError):
+        return {}
+
+
+def clean_tags(raw):
+    out, seen = [], set()
+    for t in (raw if isinstance(raw, list) else []):
+        t = re.sub(r"\s+", " ", str(t)).strip(" ,;#")[:30]
+        if t and t.lower() not in seen:
+            seen.add(t.lower())
+            out.append(t)
+    return out[:20]
+
+
+def tag_counts():
+    counts = {}
+    for tags in _tags_load().values():
+        for t in tags:
+            counts[t] = counts.get(t, 0) + 1
+    return [{"tag": t, "count": n} for t, n in sorted(counts.items(), key=lambda x: x[0].lower())]
+
+
+def op_tags_set(payload):
+    bid = payload.get("biblio_id")
+    if not isinstance(bid, int):
+        return 400, {"status": "invalid"}
+    tags = clean_tags(payload.get("tags"))
+    with LOCK:
+        d = _tags_load()
+        if tags:
+            d[str(bid)] = tags
+        else:
+            d.pop(str(bid), None)
+        save_json(TAGS_FILE, d)
+    return 200, {"status": "saved", "tags": tags, "all": tag_counts()}
+
+
+# ------------------------------------------------------- patron logins / my books
+LOGINS_FILE = os.path.join(DATA_DIR, "logins.json")           # patron ids that have a login set up
+PW_WORDS = ["maple", "river", "cedar", "tiger", "lemon", "panda", "otter", "robin", "sunny", "cloud", "apple", "grape",
+            "daisy", "heron", "frost", "amber", "coral", "ember", "fable", "ivory", "brook", "pearl", "tulip", "wheat"]
+_LOGIN_FAILS = {}            # client address -> [count, window start]
+_LOGIN_OK = {}               # (user, sha256(pw)) -> (expires, patron_id)
+
+
+def new_password():
+    s = load_settings()
+    if s.get("patron_password_mode") == "same" and s.get("patron_password"):
+        return s["patron_password"]
+    return secrets.choice(PW_WORDS) + "%03d" % secrets.randbelow(1000)
+
+
+def _logins():
+    try:
+        d = json.load(open(LOGINS_FILE))
+        return d if isinstance(d, list) else []
+    except (OSError, ValueError):
+        return []
+
+
+def _mark_login(pid):
+    with LOCK:
+        d = _logins()
+        if pid not in d:
+            d.append(pid)
+            save_json(LOGINS_FILE, d)
+
+
+def set_patron_password(pid, pw):
+    koha("POST", "/patrons/%d/password" % pid, {"password": pw, "password_2": pw})
+    _mark_login(pid)
+
+
+def patron_login(user, pw, addr):
+    """Check a patron's card number / userid and password with Koha. Returns the patron id or None.
+    Failures are counted per address so a password cannot be guessed at speed."""
+    if not re.fullmatch(r"[A-Za-z0-9._@-]{1,40}", user or "") or not pw or len(pw) > 100:
+        return None
+    now = time.time()
+    fails = _LOGIN_FAILS.get(addr)
+    if fails and now - fails[1] < 300 and fails[0] >= 10:
+        return None
+    key = (user, hashlib.sha256(pw.encode()).hexdigest())
+    hit = _LOGIN_OK.get(key)
+    if hit and hit[0] > now:
+        return hit[1]
+    pid = None
+    try:
+        r = koha("POST", "/auth/password/validation", {"identifier": user, "password": pw})
+        pid = (r or {}).get("patron_id")
+    except KohaError:
+        pid = None
+    if pid:
+        _LOGIN_OK[key] = (now + 60, pid)
+        _LOGIN_FAILS.pop(addr, None)
+        return pid
+    f = _LOGIN_FAILS.get(addr)
+    if not f or now - f[1] >= 300:
+        f = _LOGIN_FAILS[addr] = [0, now]
+    f[0] += 1
+    return None
+
+
+def op_me(pid):
+    p = koha("GET", "/patrons/%d" % pid)
+    cos = koha("GET", "/checkouts", query={"q": json.dumps({"patron_id": pid}), "_per_page": "200", "_order_by": "due_date"},
+               headers={"x-koha-embed": "item"}) or []
+    return {"name": _patron_name(p), "card": p.get("cardnumber") or "", "loans": _loan_rows(cos)}
+
+
+def op_me_renew(pid, payload):
+    cid = payload.get("checkout_id")
+    if not isinstance(cid, int):
+        return 400, {"status": "invalid"}
+    co = koha("GET", "/checkouts/%d" % cid)
+    if not co or co.get("patron_id") != pid:
+        return 403, {"status": "error", "message": "That is not one of your books."}
+    return op_renew({"checkout_id": cid})
+
+
+def op_me_password(pid, addr, payload):
+    new = str(payload.get("new") or "")
+    if not 4 <= len(new) <= 40:
+        return 400, {"status": "invalid", "message": "Use 4 to 40 characters."}
+    p = koha("GET", "/patrons/%d" % pid)
+    if not patron_login(p.get("cardnumber") or p.get("userid") or "", str(payload.get("old") or ""), addr):
+        return 403, {"status": "error", "message": "The current password is not right."}
+    try:
+        set_patron_password(pid, new)
+    except KohaError as e:
+        return 200, {"status": "error", "message": "Koha would not accept that password: " + e.body[:100]}
+    _LOGIN_OK.clear()
+    return 200, {"status": "saved"}
+
+
+def op_reset_login(payload):
+    """Give someone a (new) login password and show it once."""
+    pid = payload.get("patron_id")
+    if not isinstance(pid, int):
+        return 400, {"status": "invalid"}
+    p = koha("GET", "/patrons/%d" % pid)
+    pw = new_password()
+    set_patron_password(pid, pw)
+    _LOGIN_OK.clear()
+    return 200, {"status": "saved", "name": _patron_name(p), "card": p.get("cardnumber") or "", "password": pw}
+
+
+def op_logins_all(payload):
+    """Logins for everyone who has none yet (people added before logins existed). Passwords are shown once."""
+    have = set(_logins())
+    made, page = [], 1
+    while True:
+        res = koha("GET", "/patrons", query={"q": json.dumps({"category_id": PATRON_CATEGORY}), "_per_page": "100", "_page": str(page)}) or []
+        for p in res:
+            if p["patron_id"] in have:
+                continue
+            pw = new_password()
+            try:
+                set_patron_password(p["patron_id"], pw)
+            except KohaError:
+                continue
+            made.append({"name": _patron_name(p), "card": p.get("cardnumber") or "", "password": pw})
+        if len(res) < 100:
+            break
+        page += 1
+    _LOGIN_OK.clear()
+    return 200, {"status": "done", "made": made}
+
+
 # ------------------------------------------------------------ photo scanning
 MAX_IMAGE = 12 * 1024 * 1024
 ZBAR_TIMEOUT = 20
@@ -1426,7 +1627,7 @@ class Handler(BaseHTTPRequestHandler):
         self.send_header("Referrer-Policy", "no-referrer")
         self.send_header("Content-Security-Policy",
                          "default-src 'self'; img-src 'self' https: data:; "
-                         "style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline'")
+                         "style-src 'self' 'unsafe-inline'; script-src 'self' 'unsafe-inline'; frame-src https://www.arbookfind.com")
         for k, v in (extra or {}).items():
             self.send_header(k, v)
         self.end_headers()
@@ -1435,6 +1636,8 @@ class Handler(BaseHTTPRequestHandler):
     def _role(self):
         """'admin', 'viewer' (read-only guest) or None. Sets self.via to 'koha' for a staff-site login."""
         self.via = None
+        self.patron_id = None
+        self.addr = self.client_address[0]
         if not PASSWORD:
             return None
         header = self.headers.get("Authorization", "")
@@ -1448,7 +1651,20 @@ class Handler(BaseHTTPRequestHandler):
             is_admin = hmac.compare_digest(ub, USER.encode()) & hmac.compare_digest(pb, PASSWORD.encode())
             is_viewer = bool(VIEWER_USER and VIEWER_PASSWORD) & hmac.compare_digest(ub, VIEWER_USER.encode()) \
                 & hmac.compare_digest(pb, VIEWER_PASSWORD.encode())
-            return "admin" if is_admin else "viewer" if is_viewer else None
+            if is_admin:
+                return "admin"
+            if is_viewer:
+                return "viewer"
+            # Otherwise: a patron signing in with their card number (or userid) and password.
+            addr = self.client_address[0]
+            if SSO_SECRET and hmac.compare_digest(self.headers.get("X-Quickadd-Proxy", "").encode(), SSO_SECRET.encode()):
+                addr = self.headers.get("X-Forwarded-For", "").split(",")[-1].strip() or addr
+            self.addr = addr
+            pid = patron_login(u, p, addr)
+            if pid:
+                self.patron_id = pid
+                return "patron"
+            return None
         # No Basic login: accept a staff-site login, but only for requests that came through the staff
         # site's web server (it overwrites X-Quickadd-Proxy with the shared secret on every request).
         if SSO_SECRET and hmac.compare_digest(self.headers.get("X-Quickadd-Proxy", "").encode(), SSO_SECRET.encode()):
@@ -1483,12 +1699,12 @@ class Handler(BaseHTTPRequestHandler):
         if self.path == "/healthz":
             return self._send(200, b"ok", "text/plain")
         path = self.path.split("?")[0]
-        if not self._guard(need_admin=path not in ("/", "/api/state", "/api/search", "/api/library") and not path.startswith(("/api/book/", "/api/more/"))):
+        if not self._guard(need_admin=path not in ("/", "/api/state", "/api/search", "/api/library", "/api/me") and not path.startswith(("/api/book/", "/api/more/"))):
             return
         if path == "/":
             return self._send(200, INDEX, "text/html; charset=utf-8")
-        if path == "/api/state" and self.role == "viewer":
-            return self._send(200, {"role": "viewer", "library": LIBRARY, "recent": [], "types": {}, "locations": [],
+        if path == "/api/state" and self.role in ("viewer", "patron"):
+            return self._send(200, {"role": self.role, "library_name": library_name(), "library": LIBRARY, "recent": [], "types": {}, "locations": [],
                                     "settings": {}, "staff_port": STAFF_PORT, "staff_url": STAFF_URL,
                                     "opac_url": OPAC_URL, "opac_port": OPAC_PORT, "sources": []})
         if path == "/api/state":
@@ -1510,6 +1726,13 @@ class Handler(BaseHTTPRequestHandler):
             except KohaError as e:
                 return self._send(404 if e.status == 404 else 502, {"status": "error", "message":
                                   "Koha is not answering yet - try again in a minute." if e.status == 503 else "Failed: %s" % e.body[:120]})
+        if path == "/api/me":
+            if self.role != "patron":
+                return self._send(403, {"status": "error", "message": "Sign in with a library card to see your books."})
+            try:
+                return self._send(200, op_me(self.patron_id))
+            except KohaError:
+                return self._send(502, {"status": "error", "message": "Koha is not answering yet - try again in a minute."})
         if path == "/api/export.csv":
             try:
                 body = export_csv()
@@ -1534,7 +1757,7 @@ class Handler(BaseHTTPRequestHandler):
             try:
                 if path == "/api/library":
                     return self._send(200, dict(op_library(urllib.parse.parse_qs(urllib.parse.urlparse(self.path).query)),
-                                                shelves=get_locations(), collections=get_collections(), types=get_item_types()))
+                                                shelves=get_locations(), collections=get_collections(), types=get_item_types(), tags=tag_counts()))
                 m = re.match(r"^/api/book/(\d{1,9})$", path)
                 if not m:
                     return self._send(404, {"error": "not found"})
@@ -1553,6 +1776,25 @@ class Handler(BaseHTTPRequestHandler):
         self._send(404, {"error": "not found"})
 
     def do_POST(self):
+        if self.path.startswith("/api/me/"):
+            if not self._guard(need_admin=False):
+                return
+            if self.role != "patron":
+                return self._send(403, {"status": "error", "message": "Sign in with a library card first."})
+            try:
+                length = int(self.headers.get("Content-Length", "0"))
+                payload = json.loads(self.rfile.read(min(length, 2000)) or b"{}")
+                if self.path == "/api/me/renew":
+                    code, body = op_me_renew(self.patron_id, payload)
+                elif self.path == "/api/me/password":
+                    code, body = op_me_password(self.patron_id, self.addr, payload)
+                else:
+                    return self._send(404, {"error": "not found"})
+                return self._send(code, body)
+            except KohaError:
+                return self._send(502, {"status": "error", "message": "Koha is not answering yet - try again in a minute."})
+            except ValueError:
+                return self._send(400, {"status": "invalid"})
         if not self._guard():
             return
         try:
@@ -1575,7 +1817,7 @@ class Handler(BaseHTTPRequestHandler):
                    "/api/barcodes/reserve": op_reserve, "/api/barcodes/assign": op_assign,
                    "/api/item/update": op_item_update, "/api/item/delete": op_item_delete,
                    "/api/item/copy": op_item_copy, "/api/book/delete": op_book_delete,
-                   "/api/value/add": op_value_add, "/api/ar/set": op_ar_set, "/api/ar/import": op_ar_import, "/api/checkout": op_checkout, "/api/return": op_return, "/api/renew": op_renew, "/api/patron/add": op_patron_add}
+                   "/api/value/add": op_value_add, "/api/tags/set": op_tags_set, "/api/patron/reset-login": op_reset_login, "/api/logins/all": op_logins_all, "/api/ar/set": op_ar_set, "/api/ar/import": op_ar_import, "/api/checkout": op_checkout, "/api/return": op_return, "/api/renew": op_renew, "/api/patron/add": op_patron_add}
             fn = ops.get(self.path)
             if not fn:
                 return self._send(404, {"error": "not found"})

library/quickadd/index.html

@@ -3,7 +3,7 @@
 <head>
 <meta charset="utf-8">
 <meta name="viewport" content="width=device-width, initial-scale=1">
-<title>Library</title>
+<title>A Room for Books</title>
 <style>
   :root {
     --bg: #f6f5f1; --card: #ffffff; --ink: #1d2320; --muted: #5b655f; --line: #dcdad2;
@@ -147,9 +147,10 @@
 <body>
 <main>
   <header>
-    <h1 id="title">Library</h1>
+    <h1 id="title">A Room for Books</h1>
     <nav class="tabs" aria-label="Sections">
       <a id="tab-library" href="#library" class="on">Library</a>
+      <a id="tab-mine" href="#mine" hidden>My books</a>
       <a id="tab-lend" href="#lend">Lend / return</a>
       <a id="tab-people" href="#people">People</a>
       <a id="tab-add" href="#add">Add books</a>
@@ -166,6 +167,7 @@
     </form>
     <div class="filters">
       <label class="sr" for="f-shelf">Shelf</label><select id="f-shelf"></select>
+      <label class="sr" for="f-tag">Tag</label><select id="f-tag"></select>
       <label class="sr" for="f-coll">Collection</label><select id="f-coll"></select>
       <label class="sr" for="f-type">Format</label><select id="f-type"></select>
       <label class="sr" for="f-status">Status</label><select id="f-status">
@@ -228,7 +230,16 @@
       </form>
       <div id="personresult" aria-live="polite"></div>
     </details>
-    <p><a href="#cards"><button type="button">Print everyone's cards</button></a></p>
+    <p><a href="#cards"><button type="button">Print everyone's cards</button></a>
+       <button type="button" id="alllogins">Give everyone a sign-in</button></p>
+    <details class="settings"><summary>Sign-in passwords for new people</summary>
+      <fieldset><label class="opt"><input type="radio" name="pwmode" value="generated"> A different easy password for each person (like maple482)</label>
+        <label class="opt"><input type="radio" name="pwmode" value="same"> The same password for everyone:
+          <input type="text" id="pwsame" maxlength="40" placeholder="e.g. readmore" style="font:inherit;padding:4px 8px"></label>
+        <div class="small">People sign in to see their own books with their library card number and this password; they can change it themselves. Existing passwords are never changed by this setting.</div>
+        <div class="actions"><button type="button" id="pwsave">Save</button> <span id="pwsaved" class="small"></span></div></fieldset>
+    </details>
+    <div id="loginresult" aria-live="polite"></div>
     <form class="find-form" id="peopleform" autocomplete="off">
       <label class="sr" for="pq">Search people</label>
       <input id="pq" type="search" placeholder="Search by name or card number" enterkeyhint="search">
@@ -242,6 +253,20 @@
     <div id="cardbox"></div>
   </section>
 
+  <section id="view-mine" hidden>
+    <div class="copybox"><strong id="mename"></strong> <span class="badge" id="mecard"></span>
+      <div class="small">What you have borrowed, and when it is due.</div></div>
+    <div id="meloans" aria-live="polite"></div>
+    <details class="settings" id="mepw"><summary>Change my password</summary>
+      <form class="manual" id="mepwform" autocomplete="off">
+        <input type="password" name="old" placeholder="Current password" autocomplete="current-password" required aria-label="Current password">
+        <input type="password" name="new" placeholder="New password (4 or more characters)" autocomplete="new-password" required minlength="4" aria-label="New password">
+        <div class="actions"><button class="primary" type="submit">Change password</button></div>
+      </form>
+      <div id="mepwresult" class="small" aria-live="polite"></div>
+    </details>
+  </section>
+
   <section id="view-cards" hidden>
     <p class="noprint"><a href="#people">&larr; Back to people</a> &nbsp; <button type="button" id="printcards" class="primary">Print these cards</button>
       <span class="small" id="cardsnote"></span></p>
@@ -653,7 +678,7 @@
 
   // ---- under the staff site (/add/) everything is same-origin
   const embedded = location.pathname.startsWith('/add/');
-  let viewer = false;                       // the read-only guest login: search only
+  let viewer = false, isPatron = false;                       // the read-only guest login: search only
 
   // ---- views: Library / Book / Add books
   const TINTS = ['#5b6f63', '#6b5b73', '#73655b', '#4f6a7a', '#7a5252', '#6a6f3f', '#4a5f7a', '#7a6a3a'];
@@ -671,7 +696,7 @@
   }
 
   let libPage = 1, libShelves = [], libCollections = [], libLoaded = false, filtersReady = false;
-  const filters = () => ({ q: $('q').value.trim(), shelf: $('f-shelf').value, collection: $('f-coll').value, type: $('f-type').value,
+  const filters = () => ({ q: $('q').value.trim(), shelf: $('f-shelf').value, collection: $('f-coll').value, tag: $('f-tag').value, type: $('f-type').value,
                            status: $('f-status').value, sort: $('f-sort').value });
   const filterQuery = () => { const f = filters(); return Object.entries(f).filter(([, v]) => v).map(([k, v]) => k + '=' + encodeURIComponent(v)).join('&'); };
 
@@ -685,6 +710,11 @@
     return a;
   }
 
+  function fillTagFilter(tags) {
+    const cur = $('f-tag').value;
+    $('f-tag').replaceChildren(el('option', { value: '' }, 'Any tag'), ...tags.map(t => el('option', { value: t.tag }, t.tag + ' (' + t.count + ')')));
+    $('f-tag').value = [...$('f-tag').options].some(o => o.value === cur) ? cur : '';
+  }
   let libSeq = 0;
   async function loadLibrary(reset) {
     const seq = ++libSeq;           // a newer search makes an older, slower answer irrelevant
@@ -697,6 +727,7 @@
     if (seq !== libSeq) return;
     if (!r.books) { $('libstatus').textContent = r.message || 'Koha is not answering yet - try again in a minute.'; return; }
     if (r.collections) libCollections = r.collections;
+    if (r.tags) fillTagFilter(r.tags);
     if (!filtersReady && r.shelves) {
       filtersReady = true;
       libShelves = r.shelves;
@@ -711,8 +742,8 @@
     $('more').hidden = !r.more;
     const shown = grid.children.length;
     const f = filters();
-    $('libstatus').textContent = shown ? shown + (r.more ? '+' : '') + (shown === 1 ? ' book' : ' books') + (f.q || f.shelf || f.collection || f.type || f.status ? ' match' : '') :
-      (f.q || f.shelf || f.collection || f.type || f.status ? 'No books match.' : (viewer ? 'Nothing here yet.' : 'Nothing here yet - open Add books and scan an ISBN.'));
+    $('libstatus').textContent = shown ? shown + (r.more ? '+' : '') + (shown === 1 ? ' book' : ' books') + (f.q || f.shelf || f.collection || f.tag || f.type || f.status ? ' match' : '') :
+      (f.q || f.shelf || f.collection || f.tag || f.type || f.status ? 'No books match.' : (viewer ? 'Nothing here yet.' : 'Nothing here yet - open Add books and scan an ISBN.'));
   }
   $('arimport').onclick = async () => {
     const f = $('arfile').files[0]; if (!f) { $('arresult').textContent = 'Choose a CSV file first.'; return; }
@@ -721,7 +752,7 @@
   };
   $('more').onclick = () => { libPage += 1; loadLibrary(false); };
   $('findform').onsubmit = ev => { ev.preventDefault(); loadLibrary(true); };
-  for (const id of ['f-shelf', 'f-coll', 'f-type', 'f-status', 'f-sort']) $(id).onchange = () => loadLibrary(true);
+  for (const id of ['f-shelf', 'f-coll', 'f-tag', 'f-type', 'f-status', 'f-sort']) $(id).onchange = () => loadLibrary(true);
 
   // ---- one book
   async function loadBook(id) {
@@ -740,6 +771,7 @@
         b.summary ? el('p', {}, b.summary) : ''));
     box.replaceChildren(head);
     const refresh = () => loadBook(id);
+    box.append(tagBox(b));
     const moreBox = el('div', { className: 'copybox' }, el('div', { className: 'small' }, 'Looking for more about this book…'));
     box.append(moreBox);
     api('/api/more/' + id).then(m => fillMore(moreBox, b, m)).catch(() => moreBox.remove());
@@ -788,6 +820,19 @@
     const copy = el('button', { type: 'button' }, 'Copy title');
     copy.onclick = async () => { try { await navigator.clipboard.writeText(b.title); copy.textContent = 'Copied ✓'; } catch (e) { copy.textContent = 'Copy failed'; } setTimeout(() => copy.textContent = 'Copy title', 1500); };
     const open = el('a', { href: 'https://www.arbookfind.com/', target: '_blank', rel: 'noopener noreferrer' }, 'Open AR BookFind');
+    const copyTitle = async () => { try { await navigator.clipboard.writeText(b.title); } catch (e) {} };
+    const arPop = el('button', { type: 'button' }, 'Open beside this page');
+    arPop.onclick = async () => { await copyTitle();
+      const w = Math.min(560, Math.floor(screen.availWidth / 2)), h = screen.availHeight - 80;
+      window.open('https://www.arbookfind.com/', 'arbookfind', 'popup=yes,width=' + w + ',height=' + h + ',left=' + (screen.availWidth - w) + ',top=40'); };
+    const arHolder = el('div', {});
+    const arFrame = el('button', { type: 'button' }, 'Show it here');
+    arFrame.onclick = async () => { await copyTitle();
+      if (arHolder.firstChild) { arHolder.replaceChildren(); arFrame.textContent = 'Show it here'; return; }
+      arFrame.textContent = 'Hide it';
+      arHolder.replaceChildren(el('iframe', { src: 'https://www.arbookfind.com/', title: 'AR BookFind', loading: 'lazy', referrerPolicy: 'no-referrer',
+        style: 'width:100%;height:520px;border:1px solid var(--line);border-radius:8px;margin-top:8px;background:#fff' }),
+        el('div', { className: 'small' }, 'If it keeps asking who you are, your browser is blocking its cookies inside another page: use "Open beside this page" instead.')); };
     if (viewer) { wrap.append(el('strong', {}, 'Reading level: '), ar.level ? 'AR ' + ar.level + (ar.points ? ', ' + ar.points + ' points' : '') + (ar.interest ? ', interest ' + ar.interest : '') : 'not recorded'); return wrap; }
     const save = el('button', { type: 'button', className: 'primary' }, 'Save');
     const msg = el('span', {});
@@ -806,10 +851,45 @@
       msg.textContent = (found.level || found.points || found.quiz) ? ' Filled in from what you pasted - check it, then Save.' : (t.trim() ? " Couldn't find a level or points in that text." : '');
     };
     wrap.append(el('strong', {}, 'Reading level (AR): '), lvl, ' ', pts, ' ', quiz, ' ', inter, ' ', save, msg, paste,
-      el('div', { style: 'margin-top:6px' }, open, ' (a new tab: search for the title there, then type what it shows) ', copy));
+      el('div', { style: 'margin-top:6px' }, open, ' ', arPop, ' ', arFrame, ' ', copy),
+      el('div', { className: 'small' }, 'Search for the title there, select the whole book page, copy, and paste it below. (The title is copied for you when you open it.)'), arHolder);
     return wrap;
   }
 
+  // Tags: any number per book, free words ("to read", "kids", "signed"...). Click one to see every book with it.
+  function tagBox(b) {
+    const box = el('div', { className: 'copybox' });
+    let tags = [...(b.tags || [])];
+    const all = (b.all_tags || []).map(t => t.tag);
+    const draw = () => {
+      const chips = tags.map(t => {
+        const c = el('span', { className: 'chip', style: 'margin:0 6px 6px 0;display:inline-block' });
+        const a = el('a', { href: '#library', style: 'text-decoration:none' }, t);
+        a.onclick = () => { setTimeout(() => { $('f-tag').value = t; loadLibrary(true); }, 0); };
+        c.append(a);
+        if (!viewer) { const x = el('button', { type: 'button', 'aria-label': 'Remove tag ' + t, style: 'border:0;background:none;padding:0 0 0 6px;cursor:pointer;color:inherit' }, '×');
+          x.onclick = () => save(tags.filter(y => y !== t)); c.append(x); }
+        return c;
+      });
+      const parts = [el('strong', {}, 'Tags: '), ...(chips.length ? chips : [el('span', { className: 'small' }, viewer ? 'none' : 'none yet ')])];
+      if (!viewer) {
+        const list = el('datalist', { id: 'taglist' }, ...all.filter(t => !tags.includes(t)).map(t => el('option', { value: t })));
+        const inp = el('input', { type: 'text', placeholder: 'Add a tag, press Enter', 'aria-label': 'Add a tag', maxLength: 30,
+          style: 'font:inherit;padding:6px 8px;border:1px solid var(--line);border-radius:8px;background:var(--card);color:var(--ink);min-width:12em' });
+        inp.setAttribute('list', 'taglist');
+        inp.onkeydown = ev => { if (ev.key === 'Enter') { ev.preventDefault(); const v = inp.value.trim(); if (v) save([...tags, v]); } };
+        parts.push(list, inp);
+      }
+      box.replaceChildren(...parts);
+    };
+    const save = async next => {
+      const r = await api('/api/tags/set', { biblio_id: b.id, tags: next });
+      if (r.status === 'saved') { tags = r.tags; draw(); fillTagFilter(r.all || []); }
+    };
+    draw();
+    return box;
+  }
+
   function fillMore(box, b, m) {
     const parts = [];
     if (m.description && !b.summary) parts.push(el('p', {}, m.description), el('div', { className: 'small' }, 'Description from Open Library.'));
@@ -989,9 +1069,30 @@
     await findPeople(term, $('peoplelist'), p => {
       const lend = el('a', { href: '#lend/' + p.id }, el('button', { type: 'button' }, 'Lend / returns'));
       const card = el('a', { href: '#card/' + p.id }, el('button', { type: 'button' }, 'Print card'));
-      return [lend, card];
+      const reset = el('button', { type: 'button' }, 'New password');
+      reset.onclick = async () => { if (!confirm('Give ' + p.name + ' a new sign-in password?')) return; const r = await api('/api/patron/reset-login', { patron_id: p.id });
+        $('loginresult').replaceChildren(el('div', { className: 'result-note' }, r.status === 'saved' ? r.name + ': sign in with card number ' + r.card + ' and password ' : 'Could not do that.', r.password ? el('strong', {}, r.password) : '')); };
+      return [lend, card, reset];
     });
   }
+  $('alllogins').onclick = async () => {
+    if (!confirm('Create a sign-in for everyone who does not have one yet? You will see each password once.')) return;
+    const r = await api('/api/logins/all', {});
+    if (r.status !== 'done') { $('loginresult').textContent = r.message || 'Could not do that.'; return; }
+    $('loginresult').replaceChildren(r.made.length ? el('div', { className: 'result-note' }, el('strong', {}, r.made.length + ' sign-ins created - write these down or print this page:'),
+      ...r.made.map(x => el('div', {}, x.name + ' - card ' + x.card + ' - password ', el('strong', {}, x.password)))) : el('div', { className: 'small' }, 'Everyone already has a sign-in.'));
+  };
+  let pwModeLoaded = false;
+  async function loadPwSettings() {
+    if (pwModeLoaded) return; const v = await api('/api/settings'); const st = v.settings || {}; pwModeLoaded = true;
+    document.querySelectorAll('input[name=pwmode]').forEach(i => { i.checked = i.value === (st.patron_password_mode || 'generated'); });
+    $('pwsame').value = st.patron_password || '';
+  }
+  $('pwsave').onclick = async () => {
+    const mode = document.querySelector('input[name=pwmode]:checked').value;
+    const r = await api('/api/settings', { patron_password_mode: mode, patron_password: $('pwsame').value });
+    $('pwsaved').textContent = r.settings && r.settings.patron_password_mode === mode ? 'Saved ✓' + (mode === 'same' && !r.settings.patron_password ? ' (enter a password of 4+ characters)' : '') : 'Could not save.';
+  };
   $('peopleform').onsubmit = ev => { ev.preventDefault(); loadPeople($('pq').value.trim()); };
   $('personform').onsubmit = async ev => {
     ev.preventDefault();
@@ -999,7 +1100,7 @@
     const r = await api('/api/patron/add', Object.assign(Object.fromEntries(new FormData(f)), confirm ? { confirm: true } : {}));
     if (r.status === 'added') {
       f.reset();
-      $('personresult').replaceChildren(el('div', { className: 'result-note' }, r.name + ' added with library card number ', el('span', { className: 'badge' }, r.card), '. ',
+      $('personresult').replaceChildren(el('div', { className: 'result-note' }, r.name + ' added with library card number ', el('span', { className: 'badge' }, r.card), r.password ? ' (sign-in: card number + password ' : '', r.password ? el('strong', {}, r.password) : '', r.password ? ')' : '', '. ',
         el('a', { href: '#card/' + r.id }, 'Print the card'), ' or ', el('a', { href: '#lend/' + r.id }, 'check something out')));
       loadPeople('');
     } else if (r.status === 'duplicate') {
@@ -1056,28 +1157,53 @@
   };
   $('printcard').onclick = () => window.print();
 
+  async function loadMine() {
+    let r; try { r = await api('/api/me'); } catch (e) { r = {}; }
+    if (!r.loans) { $('meloans').textContent = r.message || 'Could not load your books.'; return; }
+    $('mename').textContent = r.name; $('mecard').textContent = r.card;
+    const today = new Date(); today.setHours(12, 0, 0, 0);
+    const rows = r.loans.map(l => {
+      const days = Math.round((new Date(l.due + 'T12:00:00') - today) / 86400000);
+      const when = l.overdue ? 'Overdue by ' + (-days) + (days === -1 ? ' day' : ' days') : days === 0 ? 'Due today' : 'Due ' + fmtDue(l.due) + ' (in ' + days + (days === 1 ? ' day)' : ' days)');
+      const ren = el('button', { type: 'button' }, 'Renew');
+      ren.onclick = async () => { ren.disabled = true; const x = await api('/api/me/renew', { checkout_id: l.checkout_id });
+        if (x.status === 'renewed') loadMine(); else { ren.disabled = false; alert(x.message || 'That one cannot be renewed.'); } };
+      return el('div', { className: 'loan' }, el('span', { className: 't' }, el('a', { href: '#book/' + l.biblio_id }, l.title), el('div', { className: 'small' }, l.author)),
+        el('span', { className: 'chip ' + (l.overdue ? 'late' : 'in') }, when), ren);
+    });
+    $('meloans').replaceChildren(...(rows.length ? rows : [el('div', { className: 'card ok' }, el('div', { className: 'body' }, 'You have nothing checked out right now.'))]));
+  }
+  $('mepwform').onsubmit = async ev => {
+    ev.preventDefault(); const f = ev.target; const r = await api('/api/me/password', Object.fromEntries(new FormData(f)));
+    $('mepwresult').textContent = r.status === 'saved' ? 'Password changed. Next time your browser asks, use the new one.' : (r.message || 'Could not change it.');
+    if (r.status === 'saved') f.reset();
+  };
+
   function route() {
     const h = location.hash.replace(/^#/, '');
     let m, view = 'library';
     if ((m = h.match(/^book\/(\d+)$/))) view = 'book';
+    else if (h === 'mine' && isPatron) view = 'mine';
     else if (viewer) view = 'library';
     else if (h === 'add') view = 'add';
     else if ((m = h.match(/^lend(?:\/(\d+))?$/))) view = 'lend';
     else if (h === 'people') view = 'people';
     else if ((m = h.match(/^card\/(\d+)$/))) view = 'card';
     else if (h === 'cards') view = 'cards';
-    for (const v of ['library', 'book', 'add', 'lend', 'people', 'card', 'cards']) $('view-' + v).hidden = v !== view;
-    const tab = { library: 'library', book: 'library', add: 'add', lend: 'lend', people: 'people', card: 'people', cards: 'people' }[view];
-    for (const t of ['library', 'add', 'lend', 'people']) $('tab-' + t).classList.toggle('on', t === tab);
+    for (const v of ['library', 'book', 'add', 'lend', 'people', 'card', 'cards', 'mine']) $('view-' + v).hidden = v !== view;
+    const tab = { library: 'library', book: 'library', add: 'add', lend: 'lend', people: 'people', card: 'people', cards: 'people', mine: 'mine' }[view];
+    for (const t of ['library', 'add', 'lend', 'people', 'mine']) $('tab-' + t).classList.toggle('on', t === tab);
+    $('tab-mine').hidden = !isPatron;
     for (const t of ['add', 'lend', 'people']) $('tab-' + t).hidden = viewer;
     $('csvtools').hidden = viewer;
-    const names = { library: 'Library', book: 'Library', add: 'Add books', lend: 'Lend / return', people: 'People', card: 'Library card', cards: 'Library cards' };
-    $('title').textContent = names[view]; document.title = names[view];
+    const names = { library: 'The library', book: 'The library', add: 'Add books', lend: 'Lend / return', people: 'People', card: 'Library card', cards: 'Library cards', mine: 'My books' };
+    document.title = names[view] + ' - A Room for Books';
     if (view === 'book') loadBook(m[1]);
+    else if (view === 'mine') loadMine();
     else if (view === 'add') $('code').focus();
     else if (view === 'lend') { loadOut(); curPatron = null; $('patronbox').replaceChildren();
       if (m && m[1]) openPatron(m[1]); else { $('whoresults').replaceChildren(); $('who').focus(); } }
-    else if (view === 'people') { loadPeople($('pq').value.trim()); }
+    else if (view === 'people') { loadPeople($('pq').value.trim()); loadPwSettings(); }
     else if (view === 'card') loadCard(m[1]);
     else if (view === 'cards') loadCards();
     else { if (!libLoaded) { libLoaded = true; loadLibrary(true); } if (h === 'find') $('q').focus(); }
@@ -1087,7 +1213,7 @@
 
   (async () => {
     const s = await api('/api/state');
-    viewer = s.role === 'viewer';
+    viewer = s.role !== 'admin'; isPatron = s.role === 'patron';
     types = s.types || {}; if (!types[type]) type = 'BOOK'; if (!viewer) typeButtons();
     staffPort = s.staff_port; settings = s.settings || {}; shelf = settings.location || '';
     staffBase = s.staff_url || '';