feat: add per-group metric strip in report transaction list

Compute Sum/Count/Avg/Min/Max/First/Last per accordion group in the
report view (mirroring backend ReportMetrics.compute_metrics signed
semantics) via new computeTxnMetrics helper and a showMetrics prop on
TransactionList. Remove the now-redundant top-level metric strip from
ReportViewer and restore its Outflows/Inflows/Transactions stat cards.

src/Expense.tsx

@@ -110,12 +110,12 @@ export default function Expense() {
         <>
           <Box sx={{ display: "flex", gap: 2, flexWrap: "wrap", mb: 4 }}>
             <StatCard
-              label="Total spent"
+              label="Outflows"
               value={formatCurrency(summary.totalSpent, summary.currency)}
               hint={`${summary.monthItems.length} transaction${summary.monthItems.length === 1 ? "" : "s"} this month`}
             />
             <StatCard label="This month" value={formatCurrency(summary.monthTotal, summary.currency)} hint={summary.thisMonth} />
-            <StatCard label="Income" value={formatCurrency(summary.totalIncome, summary.currency)} />
+            <StatCard label="Inflows" value={formatCurrency(summary.totalIncome, summary.currency)} />
           </Box>
 
           {fieldConfigs && <TransactionList items={sorted} fields={fieldConfigs} />}

src/Reports/Report.tsx

@@ -1,5 +1,15 @@
 import React, { useCallback, useEffect, useMemo, useState } from "react";
-import { Container, Box, Paper, Typography, Alert } from "@mui/material";
+import {
+  Container,
+  Box,
+  Paper,
+  Typography,
+  Alert,
+  Accordion,
+  AccordionSummary,
+  AccordionDetails,
+} from "@mui/material";
+import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
 import AssessmentIcon from "@mui/icons-material/Assessment";
 import { useResource, useAppContext, formatCurrency } from "../../react-openapi";
 import { useToast } from "../ui/Toast";
@@ -103,31 +113,65 @@ export default function Report() {
 
       <GenerateReportPanel onGenerated={handleGenerated} />
 
-      <Typography variant="h6" fontWeight={700} sx={{ letterSpacing: "-0.01em", mb: 1.5 }}>
-        Saved reports
-      </Typography>
-
-      {reports !== null && reports.length === 0 ? (
-        <Paper variant="outlined" sx={{ borderRadius: 3 }}>
-          <EmptyState
-            icon={<AssessmentIcon />}
-            title="No reports yet"
-            description="Generate your first report above — pick a granularity and payee (a payee-only or wildcard config snapshots weekly, monthly and quarterly)."
-          />
-        </Paper>
-      ) : (
-        <Box sx={{ display: "flex", flexDirection: "column", gap: 2.5, mb: 4 }}>
-          <ReportList
-            reports={reports ?? []}
-            loading={loading}
-            fields={reportFields}
-            selectedId={selectedId}
-            onView={(id) => setSelectedId(id)}
-            onRegenerate={handleRegenerate}
-            onDelete={handleDelete}
-          />
-        </Box>
-      )}
+      <Accordion
+        disableGutters
+        defaultExpanded
+        sx={{
+          border: "1px solid",
+          borderColor: "divider",
+          borderRadius: 2,
+          overflow: "hidden",
+          boxShadow: "none",
+          backgroundColor: "background.paper",
+          "&:before": { display: "none" },
+          mb: 4,
+        }}
+      >
+        <AccordionSummary
+          expandIcon={<ExpandMoreIcon />}
+          sx={{
+            px: 2.5,
+            py: 1,
+            "& .MuiAccordionSummary-content": {
+              alignItems: "center",
+              gap: 1.5,
+              minWidth: 0,
+            },
+          }}
+        >
+          <Typography variant="h6" fontWeight={700} sx={{ letterSpacing: "-0.01em" }}>
+            Saved reports
+          </Typography>
+          {reports !== null && (
+            <Typography variant="caption" color="text.secondary">
+              {reports.length} report{reports.length === 1 ? "" : "s"}
+            </Typography>
+          )}
+        </AccordionSummary>
+        <AccordionDetails sx={{ px: 2.5, pb: 2.5, pt: 0 }}>
+          {reports !== null && reports.length === 0 ? (
+            <Paper variant="outlined" sx={{ borderRadius: 3 }}>
+              <EmptyState
+                icon={<AssessmentIcon />}
+                title="No reports yet"
+                description="Generate your first report above — pick a granularity and payee (a payee-only or wildcard config snapshots weekly, monthly and quarterly)."
+              />
+            </Paper>
+          ) : (
+            <Box sx={{ display: "flex", flexDirection: "column", gap: 2.5 }}>
+              <ReportList
+                reports={reports ?? []}
+                loading={loading}
+                fields={reportFields}
+                selectedId={selectedId}
+                onView={(id) => setSelectedId(id)}
+                onRegenerate={handleRegenerate}
+                onDelete={handleDelete}
+              />
+            </Box>
+          )}
+        </AccordionDetails>
+      </Accordion>
 
       {selectedId && (
         <ReportViewer

src/Reports/ReportViewer.tsx

@@ -7,23 +7,16 @@ import {
   IconButton,
   Alert,
   Skeleton,
-  TextField,
-  Autocomplete,
-  Table,
-  TableBody,
-  TableCell,
-  TableContainer,
-  TableHead,
-  TableRow,
 } from "@mui/material";
 import CloseIcon from "@mui/icons-material/Close";
 import CachedIcon from "@mui/icons-material/Cached";
-import { useAppContext, useResource, formatCurrency } from "../../react-openapi";
+import { useResource, formatCurrency } from "../../react-openapi";
 import { StatCard } from "../common/components/StatCard";
 import { TransactionList } from "../common/components/TransactionList";
+import { OptionMultiSelect } from "../common/components/OptionMultiSelect";
 import type { TxnFieldConfigs } from "../common/types";
 import { toPeriodGranularity } from "../common/utils/transactions";
-import { aggregateSlice, buildPivot, metricLabels } from "./types";
+import { aggregateSlice } from "./types";
 
 interface ReportViewerProps {
   id: string;
@@ -34,15 +27,14 @@ interface ReportViewerProps {
 }
 
 export function ReportViewer({ id, version, fields, onClose, onRegenerated }: ReportViewerProps) {
-  const { schemas } = useAppContext();
   const { get } = useResource("reports");
 
   const [report, setReport] = useState<any | null>(null);
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
   const [reload, setReload] = useState(0);
-  const [selectedPeriod, setSelectedPeriod] = useState("*");
-  const [selectedPayee, setSelectedPayee] = useState("*");
+  const [selectedPeriods, setSelectedPeriods] = useState<string[]>([]);
+  const [selectedPayees, setSelectedPayees] = useState<string[]>([]);
 
   useEffect(() => {
     let mounted = true;
@@ -52,8 +44,8 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
       .then((res) => {
         if (!mounted) return;
         setReport(res);
-        setSelectedPeriod("*");
-        setSelectedPayee("*");
+        setSelectedPeriods([]);
+        setSelectedPayees([]);
       })
       .catch((e: any) => {
         if (!mounted) return;
@@ -79,32 +71,10 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
   }, [report]);
 
   const slice = useMemo(
-    () => aggregateSlice(data ?? [], { period: selectedPeriod, payee: selectedPayee }),
-    [data, selectedPeriod, selectedPayee],
+    () => aggregateSlice(data ?? [], { periods: selectedPeriods, payees: selectedPayees }),
+    [data, selectedPeriods, selectedPayees],
   );
 
-  const pivot = useMemo(
-    () => buildPivot(data ?? [], groupOptions.period, groupOptions.payee),
-    [data, groupOptions],
-  );
-
-  const metrics = useMemo(() => {
-    const labels = metricLabels(schemas);
-    const displayKeys = ["sum", "count", "avg", "min", "max", "first_date", "last_date"];
-    return labels.filter((l) => displayKeys.includes(l.key));
-  }, [schemas]);
-
-  const metricValue = (key: string): string | null => {
-    if (key === "sum") return formatCurrency(slice.sum, slice.currency);
-    if (key === "count") return slice.count.toLocaleString("en-IN");
-    if (key === "avg") return slice.avg == null ? null : formatCurrency(slice.avg, slice.currency);
-    if (key === "min") return slice.min == null ? null : formatCurrency(slice.min, slice.currency);
-    if (key === "max") return slice.max == null ? null : formatCurrency(slice.max, slice.currency);
-    if (key === "first_date") return slice.firstDate;
-    if (key === "last_date") return slice.lastDate;
-    return null;
-  };
-
   if (loading) {
     return (
       <Paper variant="outlined" sx={{ p: 2.5, borderRadius: 3 }}>
@@ -179,23 +149,17 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
       ) : (
         <Box sx={{ p: 2.5 }}>
           <Box sx={{ display: "flex", gap: 1.5, flexWrap: "wrap", mb: 2.5 }}>
-            <Autocomplete
-              size="small"
-              sx={{ width: 220 }}
-              options={["*", ...groupOptions.period]}
-              value={selectedPeriod}
-              onChange={(_, v) => setSelectedPeriod(v ?? "*")}
-              disabled={groupOptions.period.length === 0}
-              renderInput={(params) => <TextField {...params} label="Period" />}
+            <OptionMultiSelect
+              label="Period"
+              options={groupOptions.period}
+              value={selectedPeriods}
+              onChange={setSelectedPeriods}
             />
-            <Autocomplete
-              size="small"
-              sx={{ width: 220 }}
-              options={["*", ...groupOptions.payee]}
-              value={selectedPayee}
-              onChange={(_, v) => setSelectedPayee(v ?? "*")}
-              disabled={groupOptions.payee.length === 0}
-              renderInput={(params) => <TextField {...params} label="Payee" />}
+            <OptionMultiSelect
+              label="Payee"
+              options={groupOptions.payee}
+              value={selectedPayees}
+              onChange={setSelectedPayees}
             />
             <Typography variant="body2" color="text.secondary" sx={{ alignSelf: "center" }}>
               Showing {slice.count} transactions across {slice.txns.length} rows
@@ -203,78 +167,11 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
           </Box>
 
           <Box sx={{ display: "flex", gap: 2, flexWrap: "wrap", mb: 2.5 }}>
-            <StatCard label="Spent" value={formatCurrency(slice.spent, slice.currency)} color="error.main" />
-            <StatCard label="Income" value={formatCurrency(slice.income, slice.currency)} color="success.main" />
+            <StatCard label="Outflows" value={formatCurrency(slice.spent, slice.currency)} color="error.main" />
+            <StatCard label="Inflows" value={formatCurrency(slice.income, slice.currency)} color="success.main" />
             <StatCard label="Transactions" value={slice.count.toLocaleString("en-IN")} />
           </Box>
 
-          <Box sx={{ display: "flex", gap: 1.5, flexWrap: "wrap", mb: 3 }}>
-            {metrics.map((m) => {
-              const value = metricValue(m.key);
-              if (value == null) return null;
-              return (
-                <Paper key={m.key} variant="outlined" sx={{ px: 1.5, py: 1, borderRadius: 2 }}>
-                  <Typography variant="caption" color="text.secondary" sx={{ display: "block" }}>
-                    {m.label}
-                  </Typography>
-                  <Typography variant="body2" fontWeight={600}>
-                    {value}
-                  </Typography>
-                </Paper>
-              );
-            })}
-          </Box>
-
-          {selectedPeriod === "*" && selectedPayee === "*" && pivot.rows.length > 0 && (
-            <TableContainer
-              component={Paper}
-              variant="outlined"
-              sx={{ borderRadius: 2, mb: 3, overflowX: "auto" }}
-            >
-              <Table size="small">
-                <TableHead>
-                  <TableRow>
-                    <TableCell sx={{ fontWeight: 700 }}>Period</TableCell>
-                    {pivot.payees.map((payee) => (
-                      <TableCell key={payee} align="right" sx={{ fontWeight: 700 }}>
-                        {payee}
-                      </TableCell>
-                    ))}
-                    <TableCell align="right" sx={{ fontWeight: 700 }}>
-                      Total
-                    </TableCell>
-                  </TableRow>
-                </TableHead>
-                <TableBody>
-                  {pivot.rows.map((row) => (
-                    <TableRow key={row.period} sx={{ "&:last-child td": { borderBottom: 0 } }}>
-                      <TableCell sx={{ fontWeight: 600 }}>{row.period}</TableCell>
-                      {row.cells.map((cell) => (
-                        <TableCell key={cell.payee} align="right">
-                          {cell.sum === 0 ? "—" : formatCurrency(cell.sum, slice.currency)}
-                        </TableCell>
-                      ))}
-                      <TableCell align="right" sx={{ fontWeight: 700 }}>
-                        {formatCurrency(row.periodSum, slice.currency)}
-                      </TableCell>
-                    </TableRow>
-                  ))}
-                  <TableRow>
-                    <TableCell sx={{ fontWeight: 700 }}>Total</TableCell>
-                    {pivot.totals.map((t) => (
-                      <TableCell key={t.payee} align="right" sx={{ fontWeight: 700 }}>
-                        {formatCurrency(t.sum, slice.currency)}
-                      </TableCell>
-                    ))}
-                    <TableCell align="right" sx={{ fontWeight: 700 }}>
-                      {formatCurrency(pivot.rows.reduce((s, r) => s + r.periodSum, 0), slice.currency)}
-                    </TableCell>
-                  </TableRow>
-                </TableBody>
-              </Table>
-            </TableContainer>
-          )}
-
           {slice.txns.length === 0 ? (
             <Paper variant="outlined" sx={{ borderRadius: 2, p: 3 }}>
               <Typography variant="body2" color="text.secondary">
@@ -282,7 +179,7 @@ export function ReportViewer({ id, version, fields, onClose, onRegenerated }: Re
               </Typography>
             </Paper>
           ) : fields ? (
-            <TransactionList items={slice.txns} fields={fields} granularity={toPeriodGranularity(report.granularity)} />
+            <TransactionList items={slice.txns} fields={fields} granularity={toPeriodGranularity(report.granularity)} showMetrics />
           ) : null}
         </Box>
       )}

src/Reports/types.ts

@@ -15,8 +15,8 @@ export interface ReportGroupLike {
 }
 
 export interface SliceFilter {
-  period?: string;
-  payee?: string;
+  periods?: string[];
+  payees?: string[];
 }
 
 export interface SliceSummary {
@@ -33,25 +33,6 @@ export interface SliceSummary {
   currency: string;
 }
 
-export interface PivotCell {
-  payee: string;
-  sum: number;
-  count: number;
-}
-
-export interface PivotRow {
-  period: string;
-  cells: PivotCell[];
-  periodSum: number;
-  periodCount: number;
-}
-
-export interface PivotTable {
-  rows: PivotRow[];
-  payees: string[];
-  totals: PivotCell[];
-}
-
 export interface ReportFieldConfigs {
   groupLabel: FieldConfig;
   granularity: FieldConfig;
@@ -142,11 +123,11 @@ function dateVal(value: string): number {
 
 export function groupMatches(group: ReportGroupLike, filter: SliceFilter): boolean {
   const key = parseCacheKey(group.key);
-  if (filter.period && filter.period !== "*") {
-    if (!key.period || key.period.label !== filter.period) return false;
+  if (filter.periods && filter.periods.length > 0) {
+    if (!key.period || !filter.periods.includes(key.period.label)) return false;
   }
-  if (filter.payee && filter.payee !== "*") {
-    if (!key.payee || key.payee.label !== filter.payee) return false;
+  if (filter.payees && filter.payees.length > 0) {
+    if (!key.payee || !filter.payees.includes(key.payee.label)) return false;
   }
   return true;
 }
@@ -194,35 +175,6 @@ export function aggregateSlice(groups: ReportGroupLike[], filter: SliceFilter):
   return { sum, count, avg: count ? sum / count : null, min, max, firstDate, lastDate, txns, spent, income, currency };
 }
 
-export function buildPivot(groups: ReportGroupLike[], periodOrder: string[], payeeOrder: string[]): PivotTable {
-  const payees = payeeOrder.filter((payee) =>
-    groups.some((g) => parseCacheKey(g.key).payee?.label === payee),
-  );
-  const totals = payees.map((payee) => ({ payee, sum: 0, count: 0 }));
-  const rows: PivotRow[] = [];
-
-  for (const period of periodOrder) {
-    const periodGroups = groups.filter((g) => parseCacheKey(g.key).period?.label === period);
-    if (periodGroups.length === 0) continue;
-    const cells = payees.map((payee, i) => {
-      const cellGroups = periodGroups.filter((g) => parseCacheKey(g.key).payee?.label === payee);
-      const sum = cellGroups.reduce((s, g) => s + (g.metrics?.sum ?? 0), 0);
-      const count = cellGroups.reduce((s, g) => s + (g.metrics?.count ?? 0), 0);
-      totals[i].sum += sum;
-      totals[i].count += count;
-      return { payee, sum, count };
-    });
-    rows.push({
-      period,
-      cells,
-      periodSum: cells.reduce((s, c) => s + c.sum, 0),
-      periodCount: cells.reduce((s, c) => s + c.count, 0),
-    });
-  }
-
-  return { rows, payees, totals };
-}
-
 export function buildReportFieldConfigs(resources: ResourceConfig[]): ReportFieldConfigs | null {
   const reportsRes = resources.find((r) => r.name === "reports");
   if (!reportsRes) return null;

src/common/components/OptionMultiSelect.tsx

@@ -0,0 +1,55 @@
+import React, { useMemo } from "react";
+import { Autocomplete, TextField, Chip, Box } from "@mui/material";
+import DoneIcon from "@mui/icons-material/Done";
+
+interface OptionMultiSelectProps {
+  label: string;
+  options: string[];
+  value: string[];
+  onChange: (value: string[]) => void;
+}
+
+export function OptionMultiSelect({ label, options, value, onChange }: OptionMultiSelectProps) {
+  const sortedOptions = useMemo(() => {
+    const sel = new Set(value);
+    const picked: string[] = [];
+    const rest: string[] = [];
+    for (const opt of options) {
+      (sel.has(opt) ? picked : rest).push(opt);
+    }
+    return [...picked, ...rest];
+  }, [options, value]);
+
+  return (
+    <Autocomplete
+      multiple
+      size="small"
+      sx={{ width: 260 }}
+      options={sortedOptions}
+      value={value}
+      onChange={(_, newVal) => onChange(newVal)}
+      disabled={options.length === 0}
+      renderOption={(props, option, { selected }) => (
+        <li {...props}>
+          {selected ? <DoneIcon sx={{ fontSize: 14, mr: 1, color: "primary.main" }} /> : <Box sx={{ width: 22, mr: 1 }} />}
+          {option}
+        </li>
+      )}
+      renderTags={(tagValue, getTagProps) => {
+        const maxChips = 1;
+        return (
+          <>
+            {tagValue.slice(0, maxChips).map((tag, index) => {
+              const { key, ...tagProps } = getTagProps({ index });
+              return <Chip key={key} {...tagProps} label={tag.length > 12 ? `${tag.slice(0, 10)}..` : tag} size="small" />;
+            })}
+            {tagValue.length > maxChips && <Chip label={`+${tagValue.length - maxChips}`} size="small" />}
+          </>
+        );
+      }}
+      renderInput={(params) => (
+        <TextField {...params} label={label} placeholder={value.length === 0 ? "All" : undefined} />
+      )}
+    />
+  );
+}

src/common/components/TransactionList.tsx

@@ -2,6 +2,7 @@ import React, { useCallback, useEffect, useMemo, useRef, useState } from "react"
 import {
   Box,
   Typography,
+  Paper,
   Accordion,
   AccordionSummary,
   AccordionDetails,
@@ -14,7 +15,7 @@ import ExpandMoreIcon from "@mui/icons-material/ExpandMore";
 import KeyboardArrowDownIcon from "@mui/icons-material/KeyboardArrowDown";
 import { formatCurrency } from "../../../react-openapi";
 import type { ExpenseItem, TxnFieldConfigs } from "../types";
-import { groupByDate, groupByPeriod } from "../utils/transactions";
+import { computeTxnMetrics, groupByDate, groupByPeriod } from "../utils/transactions";
 import type { PeriodGranularity } from "../utils/transactions";
 import { TransactionRow } from "./TransactionRow";
 
@@ -22,9 +23,37 @@ interface TransactionListProps {
   items: ExpenseItem[];
   fields: TxnFieldConfigs;
   granularity?: PeriodGranularity;
+  showMetrics?: boolean;
 }
 
-export function TransactionList({ items, fields, granularity = "monthly" }: TransactionListProps) {
+function GroupMetrics({ items, currency }: { items: ExpenseItem[]; currency: string }) {
+  const m = computeTxnMetrics(items);
+  const rows: { label: string; value: string }[] = [
+    { label: "Sum", value: formatCurrency(m.sum, currency) },
+    { label: "Count", value: m.count.toLocaleString("en-IN") },
+    { label: "Avg", value: m.avg == null ? "—" : formatCurrency(m.avg, currency) },
+    { label: "Min", value: m.min == null ? "—" : formatCurrency(m.min, currency) },
+    { label: "Max", value: m.max == null ? "—" : formatCurrency(m.max, currency) },
+    { label: "First", value: m.firstDate ?? "—" },
+    { label: "Last", value: m.lastDate ?? "—" },
+  ];
+  return (
+    <Box sx={{ display: "flex", gap: 1, flexWrap: "wrap", mb: 1.5 }}>
+      {rows.map((row) => (
+        <Paper key={row.label} variant="outlined" sx={{ px: 1.25, py: 0.5, borderRadius: 1.5 }}>
+          <Typography variant="caption" color="text.secondary" sx={{ display: "block" }}>
+            {row.label}
+          </Typography>
+          <Typography variant="body2" fontWeight={600}>
+            {row.value}
+          </Typography>
+        </Paper>
+      ))}
+    </Box>
+  );
+}
+
+export function TransactionList({ items, fields, granularity = "monthly", showMetrics = false }: TransactionListProps) {
   const [activeMonth, setActiveMonth] = useState<string | null>(null);
   const [openMonth, setOpenMonth] = useState<string | null>(null);
   const [menuAnchor, setMenuAnchor] = useState<HTMLElement | null>(null);
@@ -160,6 +189,7 @@ export function TransactionList({ items, fields, granularity = "monthly" }: Tran
                 </Typography>
               </AccordionSummary>
               <AccordionDetails sx={{ p: 1.5, pt: 1 }}>
+                {showMetrics && <GroupMetrics items={group.items} currency={group.currency} />}
                 <Box sx={{ display: "flex", flexDirection: "column", gap: 1 }}>
                   {groupByDate(group.items).map((dateGroup) => (
                     <Box

src/common/utils/transactions.ts

@@ -106,4 +106,35 @@ export function groupByPeriod(items: ExpenseItem[], granularity: PeriodGranulari
       return { key, label: periodLabel(key, granularity), items: sorted, spent, income, currency };
     })
     .sort((a, b) => b.key.localeCompare(a.key));
+}
+
+export interface TxnMetrics {
+  sum: number;
+  count: number;
+  avg: number | null;
+  min: number | null;
+  max: number | null;
+  firstDate: string | null;
+  lastDate: string | null;
+}
+
+/** Mirrors backend ReportMetrics.compute_metrics over a list of transactions. */
+export function computeTxnMetrics(items: ExpenseItem[]): TxnMetrics {
+  const amounts = items.filter((it) => typeof it.amount === "number").map((it) => it.amount as number);
+  if (amounts.length === 0) {
+    return { sum: 0, count: 0, avg: null, min: null, max: null, firstDate: null, lastDate: null };
+  }
+  const sorted = [...items].sort(
+    (a, b) => parseOccurredAt(a.occurred_at).getTime() - parseOccurredAt(b.occurred_at).getTime(),
+  );
+  const sum = amounts.reduce((s, a) => s + a, 0);
+  return {
+    sum,
+    count: amounts.length,
+    avg: sum / amounts.length,
+    min: Math.min(...amounts),
+    max: Math.max(...amounts),
+    firstDate: sorted[0]?.occurred_at ?? null,
+    lastDate: sorted[sorted.length - 1]?.occurred_at ?? null,
+  };
 }