feat(finance): Phase 6 — Budget & Analytics

Add monthly budgets per category with spend-vs-budget dashboard and 6-month trend table.
Includes upsert budget API, monthly analytics endpoint, inline budget editing, and route auth fixes.
This commit is contained in:
2026-03-08 16:57:33 +11:00
parent 93450f7caa
commit d455738732
9 changed files with 650 additions and 8 deletions
+377 -3
View File
@@ -1,8 +1,382 @@
"use client";
import { useState } from "react";
import {
useBudgets,
useUpsertBudget,
useDeleteBudget,
useMonthlyAnalytics,
} from "@/lib/hooks";
import { CATEGORIES, formatCategory } from "@/lib/categories";
function formatMonth(m: string): string {
const [year, month] = m.split("-");
const date = new Date(Number(year), Number(month) - 1, 1);
return date.toLocaleString("default", { month: "long", year: "numeric" });
}
function prevMonth(m: string): string {
const [year, month] = m.split("-").map(Number);
const d = new Date(year, month - 2, 1);
return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, "0")}`;
}
function nextMonth(m: string): string {
const [year, month] = m.split("-").map(Number);
const d = new Date(year, month, 1);
return `${d.getFullYear()}-${String(d.getMonth() + 1).padStart(2, "0")}`;
}
function currentMonthStr(): string {
const now = new Date();
return `${now.getFullYear()}-${String(now.getMonth() + 1).padStart(2, "0")}`;
}
function barColor(pct: number): string {
if (pct > 100) return "bg-red-500";
if (pct > 80) return "bg-yellow-400";
return "bg-emerald-500";
}
export default function BudgetPage() {
const [selectedMonth, setSelectedMonth] = useState(currentMonthStr);
const [editingCategory, setEditingCategory] = useState<string | null>(null);
const [editValue, setEditValue] = useState("");
const { data: budgets = [], isLoading: budgetsLoading } = useBudgets(selectedMonth);
const { data: analytics, isLoading: analyticsLoading } = useMonthlyAnalytics(6);
const upsertBudget = useUpsertBudget();
const deleteBudget = useDeleteBudget();
const budgetMap = new Map(budgets.map((b) => [b.category, b]));
// Categories with spend this month or a budget set
const currentMonthRows = analytics?.rows.filter((r) => r.spent[selectedMonth] !== undefined) || [];
const allCategories = new Set<string>([
...currentMonthRows.map((r) => r.category),
...budgets.map((b) => b.category),
]);
const tableRows = Array.from(allCategories)
.sort()
.map((cat) => {
const analyticsRow = analytics?.rows.find((r) => r.category === cat);
const spent = analyticsRow?.spent[selectedMonth] || 0;
const txCount = analyticsRow?.txCount[selectedMonth] || 0;
const budget = budgetMap.get(cat);
const limit = budget ? Number(budget.amount_limit) : null;
const remaining = limit !== null ? limit - spent : null;
const pct = limit !== null && limit > 0 ? (spent / limit) * 100 : null;
return { cat, spent, txCount, budget, limit, remaining, pct };
});
const totalBudgeted = budgets.reduce((s, b) => s + Number(b.amount_limit), 0);
const totalSpent = tableRows.reduce((s, r) => s + r.spent, 0);
const overBudgetCount = tableRows.filter((r) => r.pct !== null && r.pct > 100).length;
async function handleBudgetSave(cat: string) {
const val = parseFloat(editValue);
if (isNaN(val) || val < 0) return;
await upsertBudget.mutateAsync({ category: cat, month: selectedMonth, amount_limit: val });
setEditingCategory(null);
setEditValue("");
}
return (
<div>
<h2 className="text-xl font-semibold mb-4">Budget</h2>
<p className="text-zinc-500">Coming soon - monthly budgets and analytics.</p>
<div className="space-y-6">
{/* Month selector */}
<div className="flex items-center justify-between">
<h2 className="text-xl font-semibold">Budget</h2>
<div className="flex items-center gap-3">
<button
onClick={() => setSelectedMonth(prevMonth(selectedMonth))}
className="p-2 rounded-lg bg-zinc-800 hover:bg-zinc-700 text-sm leading-none"
>
</button>
<span className="text-sm font-medium min-w-36 text-center">{formatMonth(selectedMonth)}</span>
<button
onClick={() => setSelectedMonth(nextMonth(selectedMonth))}
className="p-2 rounded-lg bg-zinc-800 hover:bg-zinc-700 text-sm leading-none"
>
</button>
</div>
</div>
{/* Summary cards */}
<div className="grid grid-cols-3 gap-4">
<div className="bg-zinc-900 border border-zinc-700 rounded-xl p-4">
<p className="text-xs text-zinc-500 mb-1">Total Budgeted</p>
<p className="text-2xl font-semibold">${totalBudgeted.toFixed(2)}</p>
</div>
<div className="bg-zinc-900 border border-zinc-700 rounded-xl p-4">
<p className="text-xs text-zinc-500 mb-1">Total Spent</p>
<p
className={`text-2xl font-semibold ${
totalBudgeted > 0 && totalSpent > totalBudgeted ? "text-red-400" : ""
}`}
>
${totalSpent.toFixed(2)}
</p>
</div>
<div className="bg-zinc-900 border border-zinc-700 rounded-xl p-4">
<p className="text-xs text-zinc-500 mb-1">Over Budget</p>
<p
className={`text-2xl font-semibold ${
overBudgetCount > 0 ? "text-red-400" : "text-emerald-400"
}`}
>
{overBudgetCount} {overBudgetCount === 1 ? "category" : "categories"}
</p>
</div>
</div>
{/* Budget table for current month */}
<div className="bg-zinc-900 border border-zinc-700 rounded-xl overflow-hidden">
<table className="w-full text-sm">
<thead>
<tr className="border-b border-zinc-800">
<th className="text-left px-4 py-3 text-xs text-zinc-500 font-medium">Category</th>
<th className="text-right px-4 py-3 text-xs text-zinc-500 font-medium">Budget</th>
<th className="text-right px-4 py-3 text-xs text-zinc-500 font-medium">Spent</th>
<th className="text-right px-4 py-3 text-xs text-zinc-500 font-medium">Remaining</th>
<th className="px-4 py-3 text-xs text-zinc-500 font-medium w-36">Progress</th>
<th className="text-right px-4 py-3 text-xs text-zinc-500 font-medium"># Txns</th>
</tr>
</thead>
<tbody>
{budgetsLoading || analyticsLoading ? (
<tr>
<td colSpan={6} className="px-4 py-8 text-center text-zinc-500">
Loading...
</td>
</tr>
) : tableRows.length === 0 ? (
<tr>
<td colSpan={6} className="px-4 py-8 text-center text-zinc-500">
No spending data for this month. Set a budget for any category below.
</td>
</tr>
) : (
tableRows.map(({ cat, spent, txCount, budget, limit, remaining, pct }) => (
<tr key={cat} className="border-b border-zinc-800/50 hover:bg-zinc-800/30">
<td className="px-4 py-3 font-medium">{formatCategory(cat)}</td>
<td className="px-4 py-3 text-right">
{editingCategory === cat ? (
<div className="flex items-center justify-end gap-1">
<input
autoFocus
type="number"
min="0"
step="0.01"
value={editValue}
onChange={(e) => setEditValue(e.target.value)}
onKeyDown={(e) => {
if (e.key === "Enter") handleBudgetSave(cat);
if (e.key === "Escape") {
setEditingCategory(null);
setEditValue("");
}
}}
className="w-24 bg-zinc-800 border border-zinc-600 rounded px-2 py-1 text-right text-sm"
placeholder="0.00"
/>
<button
onClick={() => handleBudgetSave(cat)}
className="text-xs text-emerald-400 hover:text-emerald-300 px-1"
>
</button>
<button
onClick={() => {
setEditingCategory(null);
setEditValue("");
}}
className="text-xs text-zinc-500 hover:text-zinc-300 px-1"
>
</button>
</div>
) : (
<div className="flex items-center justify-end gap-1">
<button
onClick={() => {
setEditingCategory(cat);
setEditValue(limit?.toString() || "");
}}
className="text-zinc-300 hover:text-white underline-offset-2 hover:underline"
>
{limit !== null ? (
`$${limit.toFixed(2)}`
) : (
<span className="text-zinc-600 italic">Set...</span>
)}
</button>
{budget && (
<button
onClick={() => deleteBudget.mutate(budget.id)}
className="text-zinc-600 hover:text-red-400 text-xs ml-1"
>
×
</button>
)}
</div>
)}
</td>
<td className="px-4 py-3 text-right">${spent.toFixed(2)}</td>
<td
className={`px-4 py-3 text-right ${
remaining !== null
? remaining < 0
? "text-red-400"
: "text-emerald-400"
: "text-zinc-600"
}`}
>
{remaining !== null ? `$${remaining.toFixed(2)}` : "—"}
</td>
<td className="px-4 py-3">
{pct !== null ? (
<div className="flex items-center gap-2">
<div className="flex-1 bg-zinc-800 rounded-full h-2 overflow-hidden">
<div
className={`h-full rounded-full ${barColor(pct)}`}
style={{ width: `${Math.min(pct, 100)}%` }}
/>
</div>
<span className="text-xs text-zinc-400 w-10 text-right">
{pct.toFixed(0)}%
</span>
</div>
) : (
<span className="text-zinc-600 text-xs"></span>
)}
</td>
<td className="px-4 py-3 text-right text-zinc-400">{txCount}</td>
</tr>
))
)}
</tbody>
</table>
</div>
{/* Add budget for any category not yet shown */}
<div>
<p className="text-xs text-zinc-500 mb-2">Set budget for another category:</p>
<div className="flex flex-wrap gap-2">
{CATEGORIES.filter((c) => !allCategories.has(c)).map((cat) => (
<button
key={cat}
onClick={() => {
setEditingCategory(cat);
setEditValue("");
}}
className="px-3 py-1.5 text-xs rounded-lg border border-zinc-700 text-zinc-400 hover:border-zinc-500 hover:text-zinc-200"
>
{formatCategory(cat)}
</button>
))}
</div>
{editingCategory && !allCategories.has(editingCategory) && (
<div className="flex items-center gap-2 mt-3">
<span className="text-sm font-medium">{formatCategory(editingCategory)}</span>
<input
autoFocus
type="number"
min="0"
step="0.01"
value={editValue}
onChange={(e) => setEditValue(e.target.value)}
onKeyDown={(e) => {
if (e.key === "Enter") handleBudgetSave(editingCategory);
if (e.key === "Escape") {
setEditingCategory(null);
setEditValue("");
}
}}
className="w-28 bg-zinc-800 border border-zinc-700 rounded px-2 py-1.5 text-sm"
placeholder="Budget amount"
/>
<button
onClick={() => handleBudgetSave(editingCategory)}
className="px-3 py-1.5 text-xs bg-indigo-600 hover:bg-indigo-500 text-white rounded-lg"
>
Save
</button>
</div>
)}
</div>
{/* 6-month trend table */}
{analytics && analytics.months.length > 0 && (
<div>
<h3 className="text-sm font-semibold text-zinc-400 mb-3">6-Month Trend</h3>
<div className="overflow-x-auto rounded-xl border border-zinc-700">
<table className="w-full text-xs border-collapse">
<thead>
<tr className="border-b border-zinc-800 bg-zinc-900">
<th className="text-left px-3 py-2 text-zinc-500 font-medium sticky left-0 bg-zinc-900 min-w-32">
Category
</th>
{analytics.months.map((m) => (
<th
key={m}
className="text-right px-3 py-2 text-zinc-500 font-medium whitespace-nowrap"
>
{m}
</th>
))}
</tr>
</thead>
<tbody>
{analytics.rows.map((row) => (
<tr key={row.category} className="border-b border-zinc-800/40 hover:bg-zinc-900/30">
<td className="px-3 py-2 font-medium sticky left-0 bg-zinc-950">
{formatCategory(row.category)}
</td>
{analytics.months.map((m) => {
const spent = row.spent[m];
const budget = row.budget[m];
const overBudget =
spent !== undefined && budget !== undefined && spent > budget;
return (
<td
key={m}
className={`px-3 py-2 text-right tabular-nums ${
spent === undefined
? "text-zinc-700"
: overBudget
? "text-red-300 bg-red-950/40"
: "text-zinc-300"
}`}
>
{spent !== undefined ? `$${Number(spent).toFixed(0)}` : "—"}
</td>
);
})}
</tr>
))}
<tr className="border-t-2 border-zinc-700 font-semibold bg-zinc-900/50">
<td className="px-3 py-2 sticky left-0 bg-zinc-900">Total</td>
{analytics.months.map((m) => {
const t = analytics.totals[m];
const over = t && t.budget > 0 && t.spent > t.budget;
return (
<td
key={m}
className={`px-3 py-2 text-right tabular-nums ${over ? "text-red-300" : ""}`}
>
${(t?.spent || 0).toFixed(0)}
</td>
);
})}
</tr>
</tbody>
</table>
</div>
</div>
)}
</div>
);
}