#!/usr/bin/env python3
# ═══════════════════════════════════════════════════════════════════
# Fajl: routers/crm_extras_router.py | v1.0.0 | 05.05.2026
# Autor: Damir Radulić <dradulic@outlook.com> / damir@rinet.one
# Lokacija: /opt/pgz-sport/routers/crm_extras_router.py
# Svrha: R5 — bulk akcije za članarine, XLSX export članova, /crm/stats,
#         notifikacije za isteke liječničkih (Email + InApp)
# ═══════════════════════════════════════════════════════════════════
"""R5 CRM extras.

Endpointi (montirani na /api/crm):
  POST /clanarine/bulk/notify       → opomena svim koji duguju (mock email + InApp)
  POST /clanarine/bulk/uplatnice    → batch HUB-3 PDF (zip ili JSON s URL-ovima)
  GET  /clanovi/export.xlsx         → XLSX svih članova (filteri klub, aktivan)
  GET  /stats                       → aktivni vs neaktivni, trend uplata, ...

  POST /lijecnicki/notify-scan      → skenira pretvorbe < N dana, kreira notifikacije
  GET  /notifications               → lista (filter user/status/channel)
  POST /notifications/{id}/read     → mark read
  POST /notifications/mark-all-read → mark all read za usera
"""
from __future__ import annotations

import io
import json as _json
import sys
from datetime import date, datetime, timedelta
from decimal import Decimal
from typing import Optional

import psycopg2
from psycopg2.extras import RealDictCursor
from fastapi import APIRouter, HTTPException, Query
from fastapi.responses import Response
from pydantic import BaseModel

import openpyxl
from openpyxl.styles import Font, PatternFill, Alignment, Border, Side

sys.path.insert(0, "/opt/pgz-sport")
from crm.payments import (
    build_hub3_pdf, make_poziv_na_broj, normalize_iban,
)

router = APIRouter(prefix="/api/crm", tags=["crm-extras"])

DSN = "host=10.10.0.2 port=6432 dbname=rinet_v3 user=rinet password=R1net2026!SecureDB#v7"

# Pragovi za scan liječničkih (dana do isteka)
LIJEC_THRESHOLDS = (30, 15, 7)


def _conn():
    return psycopg2.connect(DSN, cursor_factory=RealDictCursor)


def _conv(v):
    if isinstance(v, (date, datetime)):
        return v.isoformat()
    if isinstance(v, Decimal):
        return float(v)
    return v


def _row(d):
    return None if d is None else {k: _conv(v) for k, v in dict(d).items()}


# ════════════════════════════════════════════════════
# #3 — BULK AKCIJE ZA ČLANARINE
# ════════════════════════════════════════════════════

class BulkOpomenaIn(BaseModel):
    klub_id: Optional[int] = None
    godina: Optional[int] = None
    ids: Optional[list[int]] = None  # specifične clanarina ID
    template: Optional[str] = "Poštovani, podsjećamo na nepodmirenu članarinu."


@router.post("/clanarine/bulk/notify")
def bulk_opomena(body: BulkOpomenaIn):
    """Pošalji opomenu (mock e-mail + InApp notification) svim dužnicima."""
    where = ["c.status IN ('nepodmireno','djelomicno')"]
    params: list = []
    if body.ids:
        where.append("c.id = ANY(%s)"); params.append(body.ids)
    if body.klub_id:
        where.append("c.klub_id = %s"); params.append(body.klub_id)
    if body.godina:
        where.append("c.godina = %s"); params.append(body.godina)
    where_sql = "WHERE " + " AND ".join(where)
    with _conn() as conn, conn.cursor() as cur:
        cur.execute(f"""
          SELECT c.id, c.godina, c.iznos_propisan,
                 (c.iznos_propisan - COALESCE(c.iznos_placen,0))::numeric(10,2) AS dug,
                 cl.id AS clan_id, cl.ime || ' ' || cl.prezime AS clan,
                 cl.email AS clan_email, k.naziv AS klub
            FROM pgz_sport.clanarine c
            JOIN pgz_sport.clanovi  cl ON cl.id = c.clan_id
            LEFT JOIN pgz_sport.klubovi k ON k.id = c.klub_id
           {where_sql}
           ORDER BY dug DESC
           LIMIT 1000
        """, params)
        rows = [_row(r) for r in cur.fetchall()]

        # Insert notifications za one s e-mailom
        n_email, n_inapp = 0, 0
        for r in rows:
            subject = f"Opomena: nepodmirena članarina {r['godina']} ({r['dug']:.2f} €)"
            body_txt = (f"{body.template}\n\n"
                        f"Klub: {r.get('klub')}\n"
                        f"Iznos duga: {r['dug']:.2f} EUR\n"
                        f"Godina: {r['godina']}\n\n"
                        f"PGŽ Sport ERP/CRM")
            meta = _json.dumps({
                "clanarina_id": r["id"], "clan_id": r["clan_id"],
                "iznos_dug": float(r["dug"]),
                "uplatnica_url": f"/sport/api/crm/clanarine/{r['id']}/uplatnica.pdf",
            })
            # InApp uvijek
            cur.execute("""INSERT INTO pgz_sport.notifications
              (channel, subject, body, status, scheduled_at, meta)
              VALUES ('inapp', %s, %s, 'pending', now(), %s::jsonb)""",
              (subject, body_txt, meta))
            n_inapp += 1
            # Email mock — samo log
            if r.get("clan_email"):
                cur.execute("""INSERT INTO pgz_sport.notifications
                  (channel, subject, body, status, scheduled_at, meta)
                  VALUES ('email', %s, %s, 'pending', now(), %s::jsonb)""",
                  (subject, body_txt, _json.dumps({**_json.loads(meta),
                                                    "to": r["clan_email"]})))
                n_email += 1
        conn.commit()
    return {
        "ok": True,
        "matched": len(rows),
        "queued_inapp": n_inapp,
        "queued_email": n_email,
        "note": "Mock — SMTP nije konfiguriran; e-mail je upisan u notifications tablicu sa status='pending'.",
        "recipients_preview": rows[:20],
    }


class BulkUplatniceIn(BaseModel):
    ids: Optional[list[int]] = None
    klub_id: Optional[int] = None
    godina: Optional[int] = None


@router.post("/clanarine/bulk/uplatnice")
def bulk_uplatnice(body: BulkUplatniceIn):
    """
    Vraća JSON s listom uplatnica + linkovima na pojedinačne PDF-ove.
    (PDF-ovi se generiraju on-demand kroz /clanarine/{id}/uplatnica.pdf.)
    """
    where = ["c.status IN ('nepodmireno','djelomicno')"]
    params: list = []
    if body.ids:
        where = ["c.id = ANY(%s)"]; params = [body.ids]
    else:
        if body.klub_id:
            where.append("c.klub_id = %s"); params.append(body.klub_id)
        if body.godina:
            where.append("c.godina = %s"); params.append(body.godina)
    where_sql = "WHERE " + " AND ".join(where)
    with _conn() as conn, conn.cursor() as cur:
        cur.execute(f"""
          SELECT c.id, c.godina, c.iznos_propisan, c.iznos_placen,
                 (c.iznos_propisan - COALESCE(c.iznos_placen,0))::numeric(10,2) AS dug,
                 cl.ime || ' ' || cl.prezime AS clan,
                 k.naziv AS klub, k.iban AS klub_iban
            FROM pgz_sport.clanarine c
            JOIN pgz_sport.clanovi cl ON cl.id = c.clan_id
            LEFT JOIN pgz_sport.klubovi k ON k.id = c.klub_id
           {where_sql}
           ORDER BY k.naziv, cl.prezime
           LIMIT 500
        """, params)
        rows = [_row(r) for r in cur.fetchall()]
    return {
        "ok": True,
        "count": len(rows),
        "total_dug_eur": round(sum(float(r["dug"] or 0) for r in rows), 2),
        "uplatnice": [{
            "id": r["id"], "clan": r["clan"], "klub": r["klub"],
            "godina": r["godina"], "iznos_eur": float(r["dug"] or 0),
            "pdf_url": f"/sport/api/crm/clanarine/{r['id']}/uplatnica.pdf",
            "qr_url":  f"/sport/api/crm/clanarine/{r['id']}/qr.png",
        } for r in rows],
    }


# ════════════════════════════════════════════════════
# #4 — XLSX EXPORT ČLANOVA
# ════════════════════════════════════════════════════

@router.get("/clanovi/export.xlsx")
def export_clanovi_xlsx(
    klub_id: Optional[int] = Query(None),
    aktivan: Optional[bool] = Query(None),
    sport: Optional[str] = Query(None),
    q: Optional[str] = Query(None),
    limit: int = Query(5000, le=20000),
):
    where, params = ["1=1"], []
    if klub_id: where.append("c.klub_id = %s"); params.append(klub_id)
    if aktivan is not None: where.append("c.aktivan = %s"); params.append(aktivan)
    if sport: where.append("(c.sport ILIKE %s OR k.sport ILIKE %s)"); params += [f"%{sport}%", f"%{sport}%"]
    if q: where.append("(c.ime || ' ' || c.prezime) ILIKE %s"); params.append(f"%{q}%")
    params.append(limit)
    where_sql = "WHERE " + " AND ".join(where)
    sql = f"""
      SELECT c.id, c.ime, c.prezime, c.oib, c.datum_rodenja, c.spol,
             c.email, c.telefon, c.adresa, c.grad, c.postanski_broj,
             c.kategorija, c.podkategorija, c.pozicija, c.broj_dresa,
             c.visina_cm, c.tezina_kg, c.dominantna_noga,
             c.aktivan, c.datum_pristupa, c.reprezentativac,
             c.kategoriziran, c.kategorija_hoo,
             c.stipendiran, c.stipendija_iznos,
             c.licenca_broj, c.licenca_vrijedi_do,
             k.naziv AS klub, k.oib AS klub_oib,
             s.naziv AS savez
        FROM pgz_sport.clanovi c
        LEFT JOIN pgz_sport.klubovi k ON k.id = c.klub_id
        LEFT JOIN pgz_sport.savezi  s ON s.id = k.savez_id
       {where_sql}
       ORDER BY k.naziv NULLS LAST, c.prezime, c.ime
       LIMIT %s
    """
    with _conn() as conn, conn.cursor() as cur:
        cur.execute(sql, params)
        rows = [_row(r) for r in cur.fetchall()]

    wb = openpyxl.Workbook()
    ws = wb.active
    ws.title = "Članovi PGŽ"

    headers = [
        "ID", "Ime", "Prezime", "OIB", "Datum rođ.", "Spol",
        "E-mail", "Telefon", "Adresa", "Grad", "Pošt.",
        "Kategorija", "Podkat.", "Pozicija", "Dres",
        "Vis. (cm)", "Tež. (kg)", "Dom. noga",
        "Aktivan", "Datum prist.", "Repr.",
        "Kategoriziran", "HOO kat.",
        "Stipendiran", "Stipendija (€)",
        "Licenca", "Licenca do",
        "Klub", "OIB kluba", "Savez",
    ]
    for col, h in enumerate(headers, 1):
        cell = ws.cell(row=1, column=col, value=h)
        cell.font = Font(bold=True, color="FFFFFF", size=10)
        cell.fill = PatternFill(start_color="1E3A8A", end_color="1E3A8A", fill_type="solid")
        cell.alignment = Alignment(horizontal="center", vertical="center")
        cell.border = Border(bottom=Side(border_style="thin", color="FFFFFF"))

    keys = [
        "id", "ime", "prezime", "oib", "datum_rodenja", "spol",
        "email", "telefon", "adresa", "grad", "postanski_broj",
        "kategorija", "podkategorija", "pozicija", "broj_dresa",
        "visina_cm", "tezina_kg", "dominantna_noga",
        "aktivan", "datum_pristupa", "reprezentativac",
        "kategoriziran", "kategorija_hoo",
        "stipendiran", "stipendija_iznos",
        "licenca_broj", "licenca_vrijedi_do",
        "klub", "klub_oib", "savez",
    ]

    for ridx, r in enumerate(rows, start=2):
        for cidx, k in enumerate(keys, 1):
            v = r.get(k)
            if isinstance(v, bool):
                v = "DA" if v else "NE"
            ws.cell(row=ridx, column=cidx, value=v)

    # Auto column widths
    col_letters = list("ABCDEFGHIJKLMNOPQRSTUVWXYZ") + ["AA", "AB", "AC", "AD", "AE", "AF"]
    for col_letter, h in zip(col_letters, headers):
        ws.column_dimensions[col_letter].width = max(10, min(28, len(h) + 4))

    ws.freeze_panes = "A2"
    ws.auto_filter.ref = ws.dimensions

    buf = io.BytesIO()
    wb.save(buf)
    fname = f"clanovi-pgz-{date.today().isoformat()}.xlsx"
    return Response(
        content=buf.getvalue(),
        media_type="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
        headers={"Content-Disposition": f'attachment; filename="{fname}"'},
    )


# ════════════════════════════════════════════════════
# #5 — /crm/stats
# ════════════════════════════════════════════════════

@router.get("/stats")
def crm_stats(klub_id: Optional[int] = Query(None)):
    """Aktivni/neaktivni članovi, trend uplata, KPI summary."""
    klub_filter = "AND klub_id = %s" if klub_id else ""
    klub_params = [klub_id] if klub_id else []

    with _conn() as conn, conn.cursor() as cur:
        # aktivni vs neaktivni
        cur.execute(f"""
          SELECT
            COUNT(*) FILTER (WHERE aktivan = TRUE) AS aktivni,
            COUNT(*) FILTER (WHERE aktivan = FALSE) AS neaktivni,
            COUNT(*) AS total,
            COUNT(*) FILTER (WHERE reprezentativac = TRUE) AS reprezentativci,
            COUNT(*) FILTER (WHERE kategoriziran = TRUE) AS kategorizirani,
            COUNT(*) FILTER (WHERE stipendiran = TRUE) AS stipendirani
            FROM pgz_sport.clanovi
           WHERE 1=1 {klub_filter}
        """, klub_params)
        clanovi_summary = _row(cur.fetchone())

        # po spolu
        cur.execute(f"""
          SELECT spol, COUNT(*) AS n
            FROM pgz_sport.clanovi
           WHERE aktivan = TRUE {klub_filter}
           GROUP BY spol ORDER BY n DESC
        """, klub_params)
        po_spolu = [_row(r) for r in cur.fetchall()]

        # po kategoriji
        cur.execute(f"""
          SELECT COALESCE(kategorija, '(nepoznato)') AS kategorija, COUNT(*) AS n
            FROM pgz_sport.clanovi
           WHERE aktivan = TRUE {klub_filter}
           GROUP BY kategorija ORDER BY n DESC LIMIT 12
        """, klub_params)
        po_kategoriji = [_row(r) for r in cur.fetchall()]

        # trend uplata po mjesecu — zadnjih 12
        cur.execute(f"""
          SELECT to_char(date_trunc('month', datum_uplate), 'YYYY-MM') AS mjesec,
                 COUNT(*) AS broj_uplata,
                 SUM(iznos_placen)::numeric(10,2) AS iznos_total
            FROM pgz_sport.clanarine
           WHERE datum_uplate IS NOT NULL
             AND datum_uplate >= (CURRENT_DATE - INTERVAL '12 months')
             {('AND klub_id = %s' if klub_id else '')}
           GROUP BY date_trunc('month', datum_uplate)
           ORDER BY mjesec
        """, klub_params)
        trend_uplata = [_row(r) for r in cur.fetchall()]

        # članarine summary
        cur.execute(f"""
          SELECT COUNT(*) AS total,
                 SUM(iznos_propisan)::numeric(10,2) AS propisan,
                 SUM(iznos_placen)::numeric(10,2)   AS placen,
                 SUM(iznos_propisan - COALESCE(iznos_placen,0))::numeric(10,2) AS dug,
                 COUNT(*) FILTER (WHERE status='nepodmireno') AS n_nepodmireno,
                 COUNT(*) FILTER (WHERE status='djelomicno')  AS n_djelomicno,
                 COUNT(*) FILTER (WHERE status='podmireno')   AS n_podmireno
            FROM pgz_sport.clanarine
           WHERE 1=1 {klub_filter}
        """, klub_params)
        clanarine_summary = _row(cur.fetchone())

        # liječnički status
        cur.execute(f"""
          SELECT
            COUNT(*) FILTER (WHERE vrijedi_do > CURRENT_DATE + INTERVAL '30 days') AS vazeci,
            COUNT(*) FILTER (WHERE vrijedi_do BETWEEN CURRENT_DATE AND CURRENT_DATE + INTERVAL '30 days') AS uskoro,
            COUNT(*) FILTER (WHERE vrijedi_do < CURRENT_DATE) AS istekli,
            COUNT(*) AS total
            FROM pgz_sport.lijecnicki_pregledi
           WHERE 1=1 {klub_filter}
        """, klub_params)
        lijecnicki_summary = _row(cur.fetchone())

        # najnovije uplate (zadnjih 10)
        cur.execute(f"""
          SELECT c.id, c.iznos_placen, c.datum_uplate, c.godina,
                 cl.ime||' '||cl.prezime AS clan, k.naziv AS klub
            FROM pgz_sport.clanarine c
            LEFT JOIN pgz_sport.clanovi cl ON cl.id = c.clan_id
            LEFT JOIN pgz_sport.klubovi k  ON k.id  = c.klub_id
           WHERE c.datum_uplate IS NOT NULL {klub_filter.replace('klub_id', 'c.klub_id')}
           ORDER BY c.datum_uplate DESC
           LIMIT 10
        """, klub_params)
        najnovije_uplate = [_row(r) for r in cur.fetchall()]

    return {
        "klub_id": klub_id,
        "clanovi": clanovi_summary,
        "po_spolu": po_spolu,
        "po_kategoriji": po_kategoriji,
        "trend_uplata_12m": trend_uplata,
        "clanarine": clanarine_summary,
        "lijecnicki": lijecnicki_summary,
        "najnovije_uplate": najnovije_uplate,
    }


# ════════════════════════════════════════════════════
# #6 — NOTIFIKACIJE LIJEČNIČKI ISTECI
# ════════════════════════════════════════════════════

class NotifScanIn(BaseModel):
    klub_id: Optional[int] = None
    thresholds: Optional[list[int]] = None  # default = LIJEC_THRESHOLDS
    include_expired: bool = True  # uključi i one koji su već istekli


@router.post("/lijecnicki/notify-scan")
def lijecnicki_notify_scan(body: NotifScanIn):
    """
    Skenira nadolazeće isteke i kreira notifikacije (InApp + Email mock)
    za pragove 30/15/7 dana. Ako include_expired=True, isto kreira jednu
    notifikaciju (threshold=0) za već istekle.
    Ne duplicira: gleda meta.lijecnicki_id+threshold u zadnjih 7 dana.
    """
    thresholds = sorted(set(body.thresholds or LIJEC_THRESHOLDS), reverse=True)
    klub_filter = "AND l.klub_id = %s" if body.klub_id else ""
    klub_params = [body.klub_id] if body.klub_id else []

    # threshold=0 → već istekli (poseban "expired" bucket)
    scan_buckets = [(thr, "uskoro") for thr in thresholds]
    if body.include_expired:
        scan_buckets.append((0, "expired"))

    created = []
    with _conn() as conn, conn.cursor() as cur:
        for thr, kind in scan_buckets:
            if kind == "expired":
                where_window = "(l.vrijedi_do - CURRENT_DATE) < 0"
                where_params = []
            else:
                where_window = "(l.vrijedi_do - CURRENT_DATE) BETWEEN 0 AND %s"
                where_params = [thr]
            cur.execute(f"""
              SELECT l.id, l.vrijedi_do, l.clan_id,
                     (l.vrijedi_do - CURRENT_DATE)::int AS dana,
                     cl.ime || ' ' || cl.prezime AS clan,
                     cl.email AS clan_email,
                     k.naziv AS klub
                FROM pgz_sport.lijecnicki_pregledi l
                LEFT JOIN pgz_sport.clanovi cl ON cl.id = l.clan_id
                LEFT JOIN pgz_sport.klubovi  k ON k.id  = l.klub_id
               WHERE l.vrijedi_do IS NOT NULL
                 AND {where_window}
                 {klub_filter}
            """, where_params + klub_params)
            kandidati = [_row(r) for r in cur.fetchall()]

            for r in kandidati:
                # de-dup: već postoji notifikacija za ovaj lijec_id+threshold u <7 dana?
                cur.execute("""
                  SELECT 1 FROM pgz_sport.notifications
                   WHERE meta->>'lijecnicki_id' = %s
                     AND meta->>'threshold' = %s
                     AND scheduled_at > now() - INTERVAL '7 days'
                   LIMIT 1
                """, (str(r["id"]), str(thr)))
                if cur.fetchone():
                    continue

                if r['dana'] is not None and r['dana'] < 0:
                    subject = f"⚠ Liječnički pregled ISTEKAO ({-r['dana']} dana): {r['clan']}"
                    msg_dana = f"istekao prije {-r['dana']} dana"
                else:
                    subject = f"⚕ Liječnički pregled ističe za {r['dana']} dana: {r['clan']}"
                    msg_dana = f"{r['dana']} dana ostalo"
                body_txt = (
                    f"Liječnički pregled za sportaša {r['clan']} "
                    f"({r.get('klub') or '(bez kluba)'}) — vrijedi do {r['vrijedi_do']} "
                    f"— {msg_dana}.\n\n"
                    f"Molimo zakažite novi termin u ZZJZ PGŽ "
                    f"(ili koristite /sport/api/crm/lijecnicki/{r['id']}/zakazi).\n\n"
                    f"PGŽ Sport ERP/CRM"
                )
                meta = _json.dumps({
                    "lijecnicki_id": r["id"],
                    "clan_id": r["clan_id"],
                    "threshold": thr,
                    "vrijedi_do": str(r["vrijedi_do"]),
                    "dana": r["dana"],
                    "zakazi_url": f"/sport/api/crm/lijecnicki/{r['id']}/zakazi",
                    "klub": r.get("klub"),
                })
                cur.execute("""INSERT INTO pgz_sport.notifications
                  (channel, subject, body, status, scheduled_at, meta)
                  VALUES ('inapp', %s, %s, 'pending', now(), %s::jsonb)
                  RETURNING id""", (subject, body_txt, meta))
                inapp_id = cur.fetchone()["id"]
                created.append({"channel": "inapp", "id": inapp_id, "lijec_id": r["id"], "thr": thr})

                if r.get("clan_email"):
                    cur.execute("""INSERT INTO pgz_sport.notifications
                      (channel, subject, body, status, scheduled_at, meta)
                      VALUES ('email', %s, %s, 'pending', now(), %s::jsonb)
                      RETURNING id""",
                      (subject, body_txt,
                       _json.dumps({**_json.loads(meta), "to": r["clan_email"]})))
                    em_id = cur.fetchone()["id"]
                    created.append({"channel": "email", "id": em_id, "lijec_id": r["id"], "thr": thr,
                                     "to": r["clan_email"]})
        conn.commit()

    return {
        "ok": True,
        "thresholds_dana": thresholds,
        "created": len(created),
        "items": created[:50],
        "note": "Mock — SMTP nije konfiguriran. Email notifikacije su upisane u DB sa status='pending'.",
    }


@router.get("/notifications")
def list_notifications(
    user_id: Optional[int] = Query(None),
    status: Optional[str] = Query(None, description="pending|sent|read"),
    channel: Optional[str] = Query(None, description="inapp|email"),
    limit: int = Query(100, le=500),
):
    where, params = [], []
    if user_id is not None:
        where.append("user_id = %s"); params.append(user_id)
    if status:
        where.append("status = %s"); params.append(status)
    if channel:
        where.append("channel = %s"); params.append(channel)
    where_sql = ("WHERE " + " AND ".join(where)) if where else ""
    params.append(limit)
    with _conn() as conn, conn.cursor() as cur:
        cur.execute(f"""
          SELECT id, user_id, channel, subject, body, status,
                 scheduled_at, sent_at, read_at, meta
            FROM pgz_sport.notifications
           {where_sql}
           ORDER BY scheduled_at DESC NULLS LAST
           LIMIT %s
        """, params)
        rows = [_row(r) for r in cur.fetchall()]
        cur.execute(f"""
          SELECT COUNT(*) AS total,
                 COUNT(*) FILTER (WHERE status='pending') AS pending,
                 COUNT(*) FILTER (WHERE status='sent')    AS sent,
                 COUNT(*) FILTER (WHERE read_at IS NULL AND channel='inapp') AS unread_inapp
            FROM pgz_sport.notifications
           {where_sql}
        """, params[:-1])
        summary = _row(cur.fetchone())
    return {"count": len(rows), "summary": summary, "rows": rows}


@router.post("/notifications/{nid}/read")
def mark_read(nid: int):
    with _conn() as conn, conn.cursor() as cur:
        cur.execute("""UPDATE pgz_sport.notifications
                          SET read_at = now(), status = 'sent'
                        WHERE id = %s
                        RETURNING id""", (nid,))
        r = cur.fetchone()
        if not r:
            raise HTTPException(404, "Notifikacija ne postoji")
        conn.commit()
    return {"ok": True, "id": nid, "status": "read"}


class MarkAllReadIn(BaseModel):
    user_id: Optional[int] = None
    channel: Optional[str] = "inapp"


@router.post("/notifications/mark-all-read")
def mark_all_read(body: MarkAllReadIn):
    where = ["read_at IS NULL"]
    params = []
    if body.user_id is not None:
        where.append("user_id = %s"); params.append(body.user_id)
    if body.channel:
        where.append("channel = %s"); params.append(body.channel)
    with _conn() as conn, conn.cursor() as cur:
        cur.execute(f"""UPDATE pgz_sport.notifications
                          SET read_at = now(), status = 'sent'
                        WHERE {' AND '.join(where)}
                        RETURNING id""", params)
        ids = [r["id"] for r in cur.fetchall()]
        conn.commit()
    return {"ok": True, "marked_read": len(ids), "ids": ids[:200]}