Add global ticket history view

backend/src/index.ts

@@ -84,6 +84,38 @@ function parseOptionalBilledMinutes(value: unknown) {
   return minutes;
 }
 
+function optionalTicketSessionMonth(value: unknown) {
+  if (value === undefined || value === null || value === "" || value === "all") {
+    return null;
+  }
+
+  return parseMonth(String(value));
+}
+
+function optionalTicketSessionStatus(value: unknown) {
+  if (value === undefined || value === null || value === "" || value === "all") {
+    return "all" as const;
+  }
+
+  if (value === "open" || value === "billed" || value === "non_billable") {
+    return value;
+  }
+
+  throw badRequest("status must be all, open, billed or non_billable");
+}
+
+function optionalTicketSessionSource(value: unknown) {
+  if (value === undefined || value === null || value === "" || value === "all") {
+    return "all" as const;
+  }
+
+  if (value === "manual" || value === "recurring") {
+    return value;
+  }
+
+  throw badRequest("source must be all, manual or recurring");
+}
+
 async function hasAdminUser() {
   const result = await query<{ exists: boolean }>("SELECT EXISTS (SELECT 1 FROM users WHERE role = 'admin') AS exists;");
   return Boolean(result.rows[0]?.exists);
@@ -1167,6 +1199,171 @@ async function getPeriodTicket(config: PeriodConfig, period: ParsedPeriod, ticke
   };
 }
 
+async function getTicketDetails(ticketId: number, userId: string, filters: { month: ParsedPeriod | null; status: "all" | "open" | "billed" | "non_billable"; source: "all" | "manual" | "recurring" }) {
+  if (filters.month) {
+    await ensureRecurringSessionsForUserPeriod(userId, filters.month.startIso, filters.month.endIso);
+  }
+
+  const ticketResult = await query(
+    `
+      SELECT
+        t.id,
+        t.ticket_number,
+        t.organization_id,
+        o.name AS organization_name,
+        COALESCE(o.name, t.customer_name) AS customer_name,
+        t.work_type,
+        NULL::timestamptz AS closed_at,
+        NULL::timestamptz AS period_closed_at,
+        COALESCE(all_sessions.session_count, 0)::int AS ticket_session_count,
+        COALESCE(all_sessions.open_count, 0)::int AS ticket_open_count,
+        COALESCE(all_sessions.manual_session_count, 0)::int AS ticket_manual_session_count
+      FROM tickets t
+      LEFT JOIN organizations o ON o.zammad_id = t.organization_id
+      LEFT JOIN LATERAL (
+        SELECT
+          COUNT(*)::int AS session_count,
+          COUNT(*) FILTER (WHERE sm.billing_status IS NULL)::int AS open_count,
+          COUNT(*) FILTER (WHERE sm.recurring_billing_id IS NULL)::int AS manual_session_count
+        FROM sessions sm
+        WHERE sm.ticket_id = t.id
+          AND sm.user_id = $2
+      ) all_sessions ON true
+      WHERE t.id = $1;
+    `,
+    [ticketId, userId]
+  );
+
+  if (ticketResult.rowCount === 0) {
+    return null;
+  }
+
+  const params: unknown[] = [ticketId, userId];
+  const where = ["s.ticket_id = $1", "s.user_id = $2"];
+
+  if (filters.month) {
+    params.push(filters.month.startIso, filters.month.endIso);
+    where.push(`s.started_at >= $${params.length - 1}::timestamptz`);
+    where.push(`s.started_at < $${params.length}::timestamptz`);
+  }
+
+  if (filters.status === "open") {
+    where.push("s.billing_status IS NULL");
+  } else if (filters.status !== "all") {
+    params.push(filters.status);
+    where.push(`s.billing_status = $${params.length}`);
+  }
+
+  if (filters.source === "manual") {
+    where.push("s.recurring_billing_id IS NULL");
+  } else if (filters.source === "recurring") {
+    where.push("s.recurring_billing_id IS NOT NULL");
+  }
+
+  const sessionWhere = where.join(" AND ");
+  const [sessionsResult, dayBillingResult, monthsResult, closureResult] = await Promise.all([
+    query(
+      `
+        SELECT
+          s.id,
+          s.organization_id,
+          (
+            SELECT name
+            FROM organizations
+            WHERE zammad_id = s.organization_id
+          ) AS organization_name,
+          COALESCE(
+            (
+              SELECT name
+              FROM organizations
+              WHERE zammad_id = s.organization_id
+            ),
+            s.customer_name
+          ) AS customer_name,
+          s.activity,
+          s.work_type,
+          s.started_at,
+          s.ended_at,
+          s.duration_seconds,
+          s.rounded_minutes,
+          s.billing_status,
+          s.billing_updated_at,
+          s.created_at,
+          s.recurring_billing_id,
+          s.recurring_billing_slot_id,
+          s.recurring_occurrence_date
+        FROM sessions s
+        WHERE ${sessionWhere}
+        ORDER BY s.started_at ASC;
+      `,
+      params
+    ),
+    query(
+      `
+        WITH filtered_days AS (
+          SELECT DISTINCT (s.started_at AT TIME ZONE 'Europe/Berlin')::date AS day
+          FROM sessions s
+          WHERE ${sessionWhere}
+        )
+        SELECT tdb.day::text AS day, tdb.billed_minutes
+        FROM ticket_day_billings tdb
+        JOIN filtered_days fd ON fd.day = tdb.day
+        WHERE tdb.ticket_id = $1
+          AND tdb.user_id = $2
+        ORDER BY tdb.day ASC;
+      `,
+      params
+    ),
+    query(
+      `
+        SELECT
+          to_char(s.started_at AT TIME ZONE 'Europe/Berlin', 'YYYY-MM') AS month,
+          COUNT(*)::int AS session_count
+        FROM sessions s
+        WHERE s.ticket_id = $1
+          AND s.user_id = $2
+        GROUP BY month
+        ORDER BY month DESC;
+      `,
+      [ticketId, userId]
+    ),
+    filters.month
+      ? query<{ closed_at: string }>("SELECT closed_at FROM month_closures WHERE month = $1::date AND user_id = $2;", [filters.month.start, userId])
+      : Promise.resolve({ rows: [] as { closed_at: string }[], rowCount: 0 })
+  ]);
+
+  const sessions = sessionsResult.rows;
+  const openCount = sessions.filter((session: any) => session.billing_status === null).length;
+  const manualSessionCount = sessions.filter((session: any) => session.recurring_billing_id === null).length;
+  const recurringSessionCount = sessions.length - manualSessionCount;
+  const ticket = ticketResult.rows[0] as any;
+  const closed = Boolean(filters.month && closureResult.rows.length > 0);
+
+  return {
+    periodType: "all",
+    period: filters.month?.label ?? "all",
+    closed,
+    closedAt: closed ? closureResult.rows[0]?.closed_at ?? null : null,
+    filters: {
+      month: filters.month?.label ?? "all",
+      status: filters.status,
+      source: filters.source
+    },
+    availableMonths: monthsResult.rows,
+    ticket: {
+      ...ticket,
+      requires_closure: false,
+      recurring_session_count: recurringSessionCount,
+      manual_session_count: manualSessionCount
+    },
+    sessions,
+    dayBillings: dayBillingResult.rows,
+    canClose: false,
+    openCount,
+    ticketOpenCount: Number(ticket.ticket_open_count ?? 0)
+  };
+}
+
 app.get("/api/setup/status", async (_req, res) => {
   res.json({ required: !(await hasAdminUser()) });
 });
@@ -2737,6 +2934,22 @@ app.get("/api/tickets/search", requireUser, async (req, res) => {
   res.json({ tickets: result.rows });
 });
 
+app.get("/api/tickets/:ticketId/details", requireUser, async (req, res) => {
+  const ticketId = parsePositiveInteger(req.params.ticketId, "ticketId");
+  const result = await getTicketDetails(ticketId, currentUser(req).id, {
+    month: optionalTicketSessionMonth(req.query.month),
+    status: optionalTicketSessionStatus(req.query.status),
+    source: optionalTicketSessionSource(req.query.source)
+  });
+
+  if (!result) {
+    res.status(404).json({ error: "Ticket not found" });
+    return;
+  }
+
+  res.json(result);
+});
+
 app.patch("/api/tickets/:ticketId", requireUser, async (req, res) => {
   const ticketId = parsePositiveInteger(req.params.ticketId, "ticketId");
   const ticketNumber = parseTrackableTicketNumber(req.body.ticketNumber);
@@ -3164,12 +3377,11 @@ app.patch("/api/sessions/:sessionId/billing", requireUser, async (req, res) => {
         s.ticket_id,
         date_trunc('month', s.started_at)::date AS month,
         date_trunc('day', s.started_at)::date AS day,
-        tm.closed_at AS ticket_month_closed_at
+        mc.closed_at AS month_closed_at
       FROM sessions s
-      LEFT JOIN ticket_month_closures tm
-        ON tm.ticket_id = s.ticket_id
-        AND tm.month = date_trunc('month', s.started_at)::date
-        AND tm.user_id = s.user_id
+      LEFT JOIN month_closures mc
+        ON mc.month = date_trunc('month', s.started_at AT TIME ZONE 'Europe/Berlin')::date
+        AND mc.user_id = s.user_id
       WHERE s.id = $1
         AND s.user_id = $2;
     `,
@@ -3181,8 +3393,8 @@ app.patch("/api/sessions/:sessionId/billing", requireUser, async (req, res) => {
     return;
   }
 
-  if (billingStatus !== null && lockResult.rows[0].ticket_month_closed_at) {
-    res.status(409).json({ error: "Ticket is closed for this period" });
+  if (lockResult.rows[0].month_closed_at) {
+    res.status(409).json({ error: "Monat ist abgeschlossen" });
     return;
   }
 
@@ -3245,6 +3457,7 @@ app.patch("/api/sessions/:sessionId/details", requireUser, async (req, res) => {
       work_type: "support" | "consulting";
       recurring_billing_id: string | null;
       recurring_work_type: "support" | "consulting" | null;
+      month_closed_at: string | null;
     }>(
       `
         SELECT
@@ -3253,9 +3466,13 @@ app.patch("/api/sessions/:sessionId/details", requireUser, async (req, res) => {
           s.started_at,
           s.work_type,
           s.recurring_billing_id,
-          rb.work_type AS recurring_work_type
+          rb.work_type AS recurring_work_type,
+          mc.closed_at AS month_closed_at
         FROM sessions s
         LEFT JOIN recurring_billings rb ON rb.id = s.recurring_billing_id
+        LEFT JOIN month_closures mc
+          ON mc.month = date_trunc('month', s.started_at AT TIME ZONE 'Europe/Berlin')::date
+          AND mc.user_id = s.user_id
         WHERE s.id = $1
           AND s.user_id = $2
         FOR UPDATE OF s;
@@ -3268,6 +3485,20 @@ app.patch("/api/sessions/:sessionId/details", requireUser, async (req, res) => {
     }
 
     const current = currentResult.rows[0];
+    const newMonthClosureResult = await client.query<{ closed_at: string }>(
+      `
+        SELECT closed_at
+        FROM month_closures
+        WHERE month = date_trunc('month', $1::timestamptz AT TIME ZONE 'Europe/Berlin')::date
+          AND user_id = $2;
+      `,
+      [startedAt.toISOString(), userId]
+    );
+
+    if (current.month_closed_at || newMonthClosureResult.rows.length > 0) {
+      return "month-closed" as const;
+    }
+
     const effectiveWorkType = current.recurring_billing_id ? current.recurring_work_type ?? current.work_type : workType;
     await reopenPeriodsForSession(client, current.ticket_id, new Date(current.started_at), userId);
     await reopenPeriodsForSession(client, current.ticket_id, startedAt, userId);
@@ -3300,6 +3531,11 @@ app.patch("/api/sessions/:sessionId/details", requireUser, async (req, res) => {
     return;
   }
 
+  if (updated === "month-closed") {
+    res.status(409).json({ error: "Monat ist abgeschlossen" });
+    return;
+  }
+
   if (!updated) {
     res.status(404).json({ error: "Session not found" });
     return;
@@ -3313,28 +3549,46 @@ app.delete("/api/sessions/:sessionId", requireUser, async (req, res) => {
   const userId = currentUser(req).id;
 
   const deleted = await withTransaction(async (client) => {
-    const sessionResult = await client.query<{
+    const currentResult = await client.query<{
       id: string;
       ticket_id: string;
       started_at: string;
       recurring_billing_id: string | null;
       recurring_billing_slot_id: string | null;
       recurring_occurrence_date: string | null;
+      month_closed_at: string | null;
     }>(
       `
-        DELETE FROM sessions
-        WHERE id = $1
-          AND user_id = $2
-        RETURNING id, ticket_id, started_at, recurring_billing_id, recurring_billing_slot_id, recurring_occurrence_date;
+        SELECT
+          s.id,
+          s.ticket_id,
+          s.started_at,
+          s.recurring_billing_id,
+          s.recurring_billing_slot_id,
+          s.recurring_occurrence_date,
+          mc.closed_at AS month_closed_at
+        FROM sessions s
+        LEFT JOIN month_closures mc
+          ON mc.month = date_trunc('month', s.started_at AT TIME ZONE 'Europe/Berlin')::date
+          AND mc.user_id = s.user_id
+        WHERE s.id = $1
+          AND s.user_id = $2
+        FOR UPDATE OF s;
       `,
       [sessionId, userId]
     );
 
-    if (sessionResult.rows.length === 0) {
+    if (currentResult.rows.length === 0) {
       return null;
     }
 
-    const session = sessionResult.rows[0];
+    const session = currentResult.rows[0];
+
+    if (session.month_closed_at) {
+      return "month-closed" as const;
+    }
+
+    await client.query("DELETE FROM sessions WHERE id = $1 AND user_id = $2;", [sessionId, userId]);
 
     if (session.recurring_billing_id && session.recurring_billing_slot_id && session.recurring_occurrence_date) {
       await client.query(
@@ -3388,6 +3642,11 @@ app.delete("/api/sessions/:sessionId", requireUser, async (req, res) => {
     return;
   }
 
+  if (deleted === "month-closed") {
+    res.status(409).json({ error: "Monat ist abgeschlossen" });
+    return;
+  }
+
   res.json({ deleted });
 });
 

frontend/src/App.tsx

@@ -70,7 +70,7 @@ import { StatisticsPage } from "./views/StatisticsPage";
 import { SetupPage } from "./views/SetupPage";
 import { TicketDetailPage } from "./views/TicketDetailPage";
 import { TimerPage } from "./views/TimerPage";
-import type { AuthUser, PeriodType, TicketSearchResult } from "./types";
+import type { AuthUser, PeriodType, TicketDetailPeriodType, TicketSearchResult } from "./types";
 import type { Dispatch, DragEvent, SetStateAction } from "react";
 
 type NavMenuEntry =
@@ -90,7 +90,7 @@ type OpenTicketNavItem = {
   key: string;
   ticketId: string;
   ticketNumber: string;
-  periodType: PeriodType;
+  periodType: TicketDetailPeriodType;
   period: string;
   path: string;
   dirty: boolean;
@@ -111,13 +111,13 @@ function readOpenTickets(userId: string): OpenTicketNavItem[] {
     const parsed = JSON.parse(raw) as Partial<OpenTicketNavItem>[];
 
     return parsed
-      .filter((item) => item.key && item.ticketId && item.ticketNumber && item.periodType && item.period && item.path)
+      .filter((item) => item.key && item.ticketId && item.ticketNumber && item.path)
       .map((item) => ({
         key: String(item.key),
         ticketId: String(item.ticketId),
         ticketNumber: String(item.ticketNumber),
-        periodType: item.periodType === "day" ? "day" : "month",
-        period: String(item.period),
+        periodType: item.periodType === "day" ? "day" : item.periodType === "month" ? "month" : "all",
+        period: item.period ? String(item.period) : "all",
         path: String(item.path),
         dirty: false
       }));
@@ -127,6 +127,17 @@ function readOpenTickets(userId: string): OpenTicketNavItem[] {
 }
 
 function routeFromPath(pathname: string) {
+  const ticketMatch = pathname.match(/^\/tickets\/(\d+)$/);
+
+  if (ticketMatch) {
+    return {
+      page: "ticket" as const,
+      periodType: "all" as const,
+      period: "all",
+      ticketId: ticketMatch[1],
+    };
+  }
+
   const periodTicketMatch = pathname.match(/^\/analysis\/(month|day)\/([^/]+)\/tickets\/(\d+)$/);
 
   if (periodTicketMatch) {
@@ -318,7 +329,7 @@ function HeaderTicketSearch({ className, onNavigate }: HeaderTicketSearchProps)
   }, [trimmedQuery]);
 
   function openTicket(ticket: TicketSearchResult) {
-    onNavigate(`/analysis/month/${ticket.latest_period}/tickets/${ticket.ticket_id}`);
+    onNavigate(`/tickets/${ticket.ticket_id}`);
     setQuery("");
     setResults([]);
     setOpen(false);
@@ -967,7 +978,11 @@ export function App() {
                           <a
                             href={ticket.path}
                             className="flex min-w-0 flex-1 items-center gap-2 text-sm"
-                            title={`${ticket.ticketNumber} (${ticket.periodType === "month" ? "Monat" : "Tag"} ${ticket.period})`}
+                            title={
+                              ticket.periodType === "all"
+                                ? `${ticket.ticketNumber} (alle Sessions)`
+                                : `${ticket.ticketNumber} (${ticket.periodType === "month" ? "Monat" : "Tag"} ${ticket.period})`
+                            }
                             onClick={navHandler(ticket.path)}
                           >
                             <span className={cn("size-2 shrink-0 rounded-full", ticket.dirty ? "bg-amber-400" : isActive ? "bg-primary-foreground" : "bg-muted-foreground/70")} />

frontend/src/api.ts

@@ -373,6 +373,31 @@ export function getTicketPeriod(type: PeriodType, period: string, ticketId: stri
   return request<TicketPeriod>(`/api/periods/${periodPath(type)}/${period}/tickets/${ticketId}`);
 }
 
+export function getTicketDetails(
+  ticketId: string,
+  filters: {
+    month?: string;
+    status?: "all" | "open" | "billed" | "non_billable";
+    source?: "all" | "manual" | "recurring";
+  } = {}
+) {
+  const params = new URLSearchParams();
+
+  if (filters.month && filters.month !== "all") {
+    params.set("month", filters.month);
+  }
+
+  if (filters.status && filters.status !== "all") {
+    params.set("status", filters.status);
+  }
+
+  if (filters.source && filters.source !== "all") {
+    params.set("source", filters.source);
+  }
+
+  return request<TicketPeriod>(`/api/tickets/${ticketId}/details${params.size ? `?${params}` : ""}`);
+}
+
 export function updateSessionBilling(sessionId: string, billingStatus: BillingStatus) {
   return request(`/api/sessions/${sessionId}/billing`, {
     method: "PATCH",

frontend/src/types.ts

@@ -1,6 +1,7 @@
 export type WorkType = "support" | "consulting";
 export type BillingStatus = "billed" | "non_billable" | null;
 export type PeriodType = "month" | "day";
+export type TicketDetailPeriodType = PeriodType | "all";
 export type UserRole = "admin" | "user";
 
 export type AuthUser = {
@@ -140,6 +141,11 @@ export type TicketDayBilling = {
   billed_minutes: number;
 };
 
+export type TicketAvailableMonth = {
+  month: string;
+  session_count: number;
+};
+
 export type SessionEntry = {
   id: string;
   organization_id: string | null;
@@ -160,10 +166,16 @@ export type SessionEntry = {
 };
 
 export type TicketPeriod = {
-  periodType: PeriodType;
+  periodType: TicketDetailPeriodType;
   period: string;
   closed: boolean;
   closedAt: string | null;
+  filters?: {
+    month: string;
+    status: "all" | "open" | "billed" | "non_billable";
+    source: "all" | "manual" | "recurring";
+  };
+  availableMonths?: TicketAvailableMonth[];
   ticket: {
     id: string;
     ticket_number: string;

frontend/src/views/TicketDetailPage.tsx

@@ -14,6 +14,7 @@ import { OrganizationSelect } from "@/components/OrganizationSelect";
 import {
   createSession,
   deleteSession,
+  getTicketDetails,
   getTicketPeriod,
   updateSessionBilling,
   updateSessionDetails,
@@ -21,11 +22,11 @@ import {
   updateTicketDayBilling
 } from "../api";
 import { currentDay, formatDate, formatDateTime, formatMinutes, formatTimeRange } from "../format";
-import type { BillingStatus, PeriodType, SessionEntry, TicketPeriod, WorkType } from "../types";
+import type { BillingStatus, PeriodType, SessionEntry, TicketDetailPeriodType, TicketPeriod, WorkType } from "../types";
 import { cn } from "@/lib/utils";
 
 type TicketDetailPageProps = {
-  periodType: PeriodType;
+  periodType: TicketDetailPeriodType;
   period: string;
   ticketId: string;
   onNavigate: (to: string) => void;
@@ -33,7 +34,7 @@ type TicketDetailPageProps = {
     key: string;
     ticketId: string;
     ticketNumber: string;
-    periodType: PeriodType;
+    periodType: TicketDetailPeriodType;
     period: string;
     path: string;
     dirty: boolean;
@@ -172,10 +173,21 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
   const [savingDayBillingKey, setSavingDayBillingKey] = useState<string | null>(null);
   const [ticketSession, setTicketSession] = useState<TicketSessionFormState>(() => emptyTicketSessionForm());
   const [savingTicketSession, setSavingTicketSession] = useState(false);
+  const [globalMonthFilter, setGlobalMonthFilter] = useState("all");
+  const [globalStatusFilter, setGlobalStatusFilter] = useState<"all" | "open" | "billed" | "non_billable">("all");
+  const [globalSourceFilter, setGlobalSourceFilter] = useState<"all" | "manual" | "recurring">("all");
 
   async function load() {
     try {
-      setData(await getTicketPeriod(periodType, period, ticketId));
+      setData(
+        periodType === "all"
+          ? await getTicketDetails(ticketId, {
+              month: globalMonthFilter,
+              status: globalStatusFilter,
+              source: globalSourceFilter
+            })
+          : await getTicketPeriod(periodType, period, ticketId)
+      );
     } catch (error) {
       toast.error("Ticket konnte nicht geladen werden", {
         description: error instanceof Error ? error.message : "Unbekannter Fehler"
@@ -185,7 +197,7 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
 
   useEffect(() => {
     void load();
-  }, [periodType, period, ticketId]);
+  }, [periodType, period, ticketId, globalMonthFilter, globalStatusFilter, globalSourceFilter]);
 
   useEffect(() => {
     const nextInputs = Object.fromEntries((data?.dayBillings ?? []).map((billing) => [billing.day, formatHoursInput(billing.billed_minutes)]));
@@ -210,8 +222,15 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
   }, [data?.ticket]);
 
   const ticket = data?.ticket;
+  const isGlobalTicket = periodType === "all";
   const isPeriodClosed = Boolean(data?.closed);
-  const periodLabel = periodType === "month" ? "Monat" : "Tag";
+  const periodLabel = periodType === "month" ? "Monat" : periodType === "day" ? "Tag" : "Ticket";
+  const sessionsScopeLabel = isGlobalTicket
+    ? globalMonthFilter === "all"
+      ? "im gesamten Ticketverlauf"
+      : `im Monat ${globalMonthFilter}`
+    : `im ${periodLabel.toLowerCase()} ${period}`;
+  const teamspaceLabel = isGlobalTicket || periodType === "month" ? "Teamspace gesamt" : "Teamspace Tag";
   const dayBillingMap = useMemo(() => new Map((data?.dayBillings ?? []).map((billing) => [billing.day, billing.billed_minutes])), [data?.dayBillings]);
   const savedDayBillingInput = (day: string) => formatHoursInput(dayBillingMap.get(day));
   const isDayBillingDirty = (day: string) => (dayBillingInputs[day] ?? "") !== savedDayBillingInput(day);
@@ -264,15 +283,15 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
     }
 
     onOpenTicketChange?.({
-      key: `${periodType}:${period}:${ticket.id}`,
+      key: isGlobalTicket ? `ticket:${ticket.id}` : `${periodType}:${period}:${ticket.id}`,
       ticketId: ticket.id,
       ticketNumber: ticket.ticket_number,
       periodType,
       period,
-      path: `/analysis/${periodType}/${period}/tickets/${ticket.id}`,
+      path: isGlobalTicket ? `/tickets/${ticket.id}` : `/analysis/${periodType}/${period}/tickets/${ticket.id}`,
       dirty: hasUnsavedChanges
     });
-  }, [ticket, periodType, period, hasUnsavedChanges, onOpenTicketChange]);
+  }, [ticket, periodType, period, isGlobalTicket, hasUnsavedChanges, onOpenTicketChange]);
 
   async function setBilling(sessionId: string, billingStatus: BillingStatus) {
     if (isPeriodClosed && billingStatus !== null) {
@@ -525,9 +544,7 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
             {ticket?.ticket_number ? <CopyTicketButton ticketNumber={ticket.ticket_number} /> : null}
             {periodType === "month" && data?.closed ? <Badge variant="outline">Monat geschlossen</Badge> : null}
           </div>
-          <p className="text-sm text-muted-foreground">
-            Sessions im {periodLabel.toLowerCase()} {period}
-          </p>
+          <p className="text-sm text-muted-foreground">Sessions {sessionsScopeLabel}</p>
         </div>
 
         <Badge variant={data?.openCount === 0 ? "success" : "warning"}>
@@ -535,12 +552,66 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
         </Badge>
       </div>
 
-      {periodType === "month" && data?.closed ? (
+      {(periodType === "month" || (isGlobalTicket && globalMonthFilter !== "all")) && data?.closed ? (
         <Alert variant="success" className="py-3 text-sm">
           Dieser Monat ist abgeschlossen. Bewertungen und Änderungen sind geschützt, bis du den Monat im Monatsabschluss wieder öffnest.
         </Alert>
       ) : null}
 
+      {isGlobalTicket ? (
+        <Card>
+          <CardHeader className="p-4">
+            <CardTitle>Filter</CardTitle>
+            <CardDescription>Grenzt die Sessionliste dieses Tickets ein. Die Ticketdaten selbst bleiben global.</CardDescription>
+          </CardHeader>
+          <CardContent className="grid gap-3 px-4 pb-4 md:grid-cols-3">
+            <div className="space-y-2">
+              <label className="text-sm font-medium" htmlFor="ticket-month-filter">Monat</label>
+              <select
+                id="ticket-month-filter"
+                className="h-8 w-full rounded-lg border border-input bg-background px-2 text-sm focus-visible:outline-none focus-visible:ring-3 focus-visible:ring-ring/50"
+                value={globalMonthFilter}
+                onChange={(event) => setGlobalMonthFilter(event.currentTarget.value)}
+              >
+                <option value="all">Alle Monate</option>
+                {(data?.availableMonths ?? []).map((month) => (
+                  <option key={month.month} value={month.month}>
+                    {month.month} ({month.session_count})
+                  </option>
+                ))}
+              </select>
+            </div>
+            <div className="space-y-2">
+              <label className="text-sm font-medium" htmlFor="ticket-status-filter">Bewertung</label>
+              <select
+                id="ticket-status-filter"
+                className="h-8 w-full rounded-lg border border-input bg-background px-2 text-sm focus-visible:outline-none focus-visible:ring-3 focus-visible:ring-ring/50"
+                value={globalStatusFilter}
+                onChange={(event) => setGlobalStatusFilter(event.currentTarget.value as typeof globalStatusFilter)}
+              >
+                <option value="all">Alle Bewertungen</option>
+                <option value="open">Offen</option>
+                <option value="billed">Abgerechnet</option>
+                <option value="non_billable">Nicht abrechenbar</option>
+              </select>
+            </div>
+            <div className="space-y-2">
+              <label className="text-sm font-medium" htmlFor="ticket-source-filter">Quelle</label>
+              <select
+                id="ticket-source-filter"
+                className="h-8 w-full rounded-lg border border-input bg-background px-2 text-sm focus-visible:outline-none focus-visible:ring-3 focus-visible:ring-ring/50"
+                value={globalSourceFilter}
+                onChange={(event) => setGlobalSourceFilter(event.currentTarget.value as typeof globalSourceFilter)}
+              >
+                <option value="all">Alle Quellen</option>
+                <option value="manual">Manuell</option>
+                <option value="recurring">Fixe Abrechnung</option>
+              </select>
+            </div>
+          </CardContent>
+        </Card>
+      ) : null}
+
       <Card>
         <CardHeader className="p-4">
           <div className="flex items-start justify-between gap-3">
@@ -600,11 +671,11 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
           </div>
           <div className="flex flex-wrap items-center gap-2">
             <div className="flex items-center gap-2 rounded-md border bg-muted/30 px-3 py-2 text-sm">
-              <span className="text-muted-foreground">{periodLabel} abgerechnet</span>
+              <span className="text-muted-foreground">Abgerechnet</span>
               <span className="font-semibold">{formatMinutes(periodTotalMinutes)}</span>
             </div>
             <div className="flex items-center gap-2 rounded-md border bg-muted/30 px-3 py-2 text-sm">
-              <span className="text-muted-foreground">{periodType === "month" ? "Teamspace gesamt" : "Teamspace Tag"}</span>
+              <span className="text-muted-foreground">{teamspaceLabel}</span>
               <span className="font-semibold">{formatMinutes(periodTeamspaceMinutes)}</span>
             </div>
             <HelpLink anchor="ticketdetail" label="Hilfe zur Ticketdetailansicht" />
@@ -709,7 +780,7 @@ export function TicketDetailPage({ periodType, period, ticketId, onNavigate, onO
           </div>
 
           {data?.sessions.length === 0 ? (
-            <p className="py-8 text-center text-sm text-muted-foreground">Keine Sessions für dieses Ticket im gewählten Zeitraum.</p>
+            <p className="py-8 text-center text-sm text-muted-foreground">Keine Sessions für dieses Ticket im gewählten Filter.</p>
           ) : null}
         </CardContent>
       </Card>