Merge branch 'main' of https://git.jerick.xyz/jerick/finance-app

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

CLAUDE.md

@@ -187,20 +187,21 @@ model BalanceSnapshot {
 All 4 user banks with exact column mappings. Implement in `src/lib/csv/bank-profiles.ts`.
 
 ### Discover High Yield Savings → `BANK`
-- **Strategy**: B (split debit/credit columns)
+- **Strategy**: C (single unsigned amount column + type column)
 - `date` ← `Transaction Date`
 - `description` ← `Transaction Description`
-- `debitAmount` ← `Debit`
-- `creditAmount` ← `Credit`
+- `amount` ← `Transaction Amount`
+- `type` ← `Transaction Type` — value is literally `Debit` or `Credit`
 - `balance` ← `Balance` (reference only)
-- Ignore: `Transaction Type`
+- Ignore: `Account Number`
 
 ### Discover Credit Card → `CREDIT_CARD`
-- **Strategy**: A (single signed column)
-- `date` ← `Trans. Date`
+- **Strategy**: B (split debit/credit columns)
+- `date` ← `Transaction Date`
 - `description` ← `Description`
-- `amount` ← `Amount` — **positive = DEBIT (charge), negative = CREDIT (payment/refund)**
-- Ignore: `Post Date`, `Category`
+- `debitAmount` ← `Debit`
+- `creditAmount` ← `Credit`
+- Ignore: `Posted Date`, `Card No.`, `Category`
 
 ### Huntington Checking → `BANK`
 - **Strategy**: A (single signed column)
@@ -224,10 +225,14 @@ All 4 user banks with exact column mappings. Implement in `src/lib/csv/bank-prof
 // Sign convention varies per bank; each profile has invertAmountSign: boolean
 function parseStrategyA(raw: string, invert: boolean): { amountCents: number; type: TransactionType }
 
-// Strategy B — separate debit/credit columns (Discover Savings)
+// Strategy B — separate debit/credit columns (Discover Credit Card)
 // The non-empty/non-zero column determines type and amount
 function parseStrategyB(debitRaw: string, creditRaw: string): { amountCents: number; type: TransactionType }
 
+// Strategy C — single unsigned amount column + separate type column (Discover Savings)
+// The type column's literal value ("Debit" / "Credit") determines type
+function parseStrategyC(amountRaw: string, typeRaw: string): { amountCents: number; type: TransactionType }
+
 // All amounts via:
 function parseCents(raw: string): number {
   return Math.round(parseFloat(raw.replace(/[$,\s]/g, '')) * 100)

package-lock.json

@@ -17,6 +17,7 @@
         "lucide-react": "^1.8.0",
         "next": "16.2.4",
         "next-auth": "^5.0.0-beta.31",
+        "next-themes": "^0.4.6",
         "papaparse": "^5.5.3",
         "pg": "^8.20.0",
         "react": "19.2.4",
@@ -8831,6 +8832,16 @@
         }
       }
     },
+    "node_modules/next-themes": {
+      "version": "0.4.6",
+      "resolved": "https://registry.npmjs.org/next-themes/-/next-themes-0.4.6.tgz",
+      "integrity": "sha512-pZvgD5L0IEvX5/9GWyHMf3m8BKiVQwsCMHfoFosXtXBMnaS0ZnIJ9ST4b4NqLVKDEm8QBxoNNGNaBv2JNF6XNA==",
+      "license": "MIT",
+      "peerDependencies": {
+        "react": "^16.8 || ^17 || ^18 || ^19 || ^19.0.0-rc",
+        "react-dom": "^16.8 || ^17 || ^18 || ^19 || ^19.0.0-rc"
+      }
+    },
     "node_modules/next/node_modules/postcss": {
       "version": "8.4.31",
       "resolved": "https://registry.npmjs.org/postcss/-/postcss-8.4.31.tgz",

package.json

@@ -18,6 +18,7 @@
     "lucide-react": "^1.8.0",
     "next": "16.2.4",
     "next-auth": "^5.0.0-beta.31",
+    "next-themes": "^0.4.6",
     "papaparse": "^5.5.3",
     "pg": "^8.20.0",
     "react": "19.2.4",

src/app/(app)/budgets/page.tsx

@@ -27,7 +27,7 @@ export default async function BudgetsPage({ searchParams }: { searchParams: Sear
     }),
     prisma.$queryRaw<{ budgetId: string; total: bigint }[]>`
       SELECT t."budgetId",
-        COALESCE(SUM(CASE WHEN t.type = 'DEBIT' THEN t."amountCents" ELSE -t."amountCents" END), 0)::bigint AS total
+        COALESCE(SUM(CASE WHEN t.type = 'DEBIT' THEN t."amountCents" WHEN t.type = 'CREDIT' THEN -t."amountCents" ELSE 0 END), 0)::bigint AS total
       FROM "Transaction" t
       JOIN "Account" a ON t."accountId" = a.id
       WHERE a."userId" = ${userId}

src/app/(app)/dashboard/page.tsx

@@ -43,7 +43,7 @@ export default async function DashboardPage({ searchParams }: { searchParams: Se
     }),
     prisma.$queryRaw<{ budgetId: string; total: bigint }[]>`
       SELECT t."budgetId",
-        COALESCE(SUM(CASE WHEN t.type = 'DEBIT' THEN t."amountCents" ELSE -t."amountCents" END), 0)::bigint AS total
+        COALESCE(SUM(CASE WHEN t.type = 'DEBIT' THEN t."amountCents" WHEN t.type = 'CREDIT' THEN -t."amountCents" ELSE 0 END), 0)::bigint AS total
       FROM "Transaction" t
       JOIN "Account" a ON t."accountId" = a.id
       WHERE a."userId" = ${userId}

src/app/api/budget-rules/route.ts

@@ -29,6 +29,11 @@ export async function POST(req: Request) {
   const budget = await prisma.budget.findFirst({ where: { id: budgetId, userId: session.user.id } })
   if (!budget) return NextResponse.json({ error: 'Budget not found' }, { status: 404 })
 
+  const existing = await prisma.budgetRule.findFirst({
+    where: { budgetId, pattern: { equals: pattern, mode: 'insensitive' } },
+  })
+  if (existing) return NextResponse.json({ error: 'Duplicate rule pattern' }, { status: 409 })
+
   const rule = await prisma.budgetRule.create({
     data: { userId: session.user.id, budgetId, pattern },
     select: { id: true, budgetId: true, pattern: true },

src/app/layout.tsx

@@ -1,6 +1,7 @@
 import type { Metadata } from "next";
 import { Geist, Geist_Mono } from "next/font/google";
 import "./globals.css";
+import { ThemeProvider } from "@/components/layout/ThemeProvider";
 
 const geistSans = Geist({
   variable: "--font-geist-sans",
@@ -27,7 +28,9 @@ export default function RootLayout({
       lang="en"
       className={`${geistSans.variable} ${geistMono.variable} h-full antialiased`}
     >
-      <body className="min-h-full flex flex-col">{children}</body>
+      <body className="min-h-full flex flex-col">
+        <ThemeProvider>{children}</ThemeProvider>
+      </body>
     </html>
   );
 }

src/components/budgets/BudgetRulesDialog.tsx

@@ -24,10 +24,14 @@ export function BudgetRulesDialog({ open, onOpenChange, budgetId, budgetName, ru
   const router = useRouter()
   const [pattern, setPattern] = useState('')
   const [adding, setAdding] = useState(false)
+  const [dupError, setDupError] = useState(false)
 
   async function handleAdd(e: React.FormEvent) {
     e.preventDefault()
     if (!pattern.trim()) return
+    const isDup = rules.some((r) => r.pattern.toLowerCase() === pattern.trim().toLowerCase())
+    if (isDup) { setDupError(true); return }
+    setDupError(false)
     setAdding(true)
     await fetch('/api/budget-rules', {
       method: 'POST',
@@ -36,6 +40,7 @@ export function BudgetRulesDialog({ open, onOpenChange, budgetId, budgetName, ru
     })
     setPattern('')
     setAdding(false)
+    setDupError(false)
     router.refresh()
   }
 
@@ -59,7 +64,7 @@ export function BudgetRulesDialog({ open, onOpenChange, budgetId, budgetName, ru
         {rules.length === 0 ? (
           <p className="text-sm text-muted-foreground text-center py-2">No rules yet.</p>
         ) : (
-          <ul className="space-y-1.5">
+          <ul className="space-y-1.5 max-h-64 overflow-y-auto pr-1">
             {rules.map((rule) => (
               <li
                 key={rule.id}
@@ -78,17 +83,22 @@ export function BudgetRulesDialog({ open, onOpenChange, budgetId, budgetName, ru
           </ul>
         )}
 
-        <form onSubmit={handleAdd} className="flex gap-2">
+        <form onSubmit={handleAdd} className="space-y-1.5">
+          <div className="flex gap-2">
             <Input
               placeholder="e.g. Amazon, Netflix, Starbucks"
               value={pattern}
-            onChange={(e) => setPattern(e.target.value)}
-            className="flex-1"
+              onChange={(e) => { setPattern(e.target.value); setDupError(false) }}
+              className={dupError ? 'flex-1 border-destructive focus-visible:ring-destructive' : 'flex-1'}
             />
             <Button type="submit" disabled={adding || !pattern.trim()} size="sm">
               <Plus className="h-4 w-4 mr-1" />
               Add
             </Button>
+          </div>
+          {dupError && (
+            <p className="text-xs text-destructive">That pattern already exists for this budget.</p>
+          )}
         </form>
       </DialogContent>
     </Dialog>

src/components/layout/Sidebar.tsx

@@ -3,10 +3,11 @@
 import Link from 'next/link'
 import { usePathname } from 'next/navigation'
 import { signOut } from 'next-auth/react'
+import { useTheme } from 'next-themes'
 import { cn } from '@/lib/utils'
 import {
   LayoutDashboard, CreditCard, ArrowLeftRight,
-  Upload, PiggyBank, TrendingUp, LogOut,
+  Upload, PiggyBank, TrendingUp, LogOut, Sun, Moon,
 } from 'lucide-react'
 import { Separator } from '@/components/ui/separator'
 
@@ -21,6 +22,7 @@ const navItems = [
 
 export function Sidebar() {
   const pathname = usePathname()
+  const { resolvedTheme, setTheme } = useTheme()
 
   return (
     <aside className="flex w-56 shrink-0 flex-col border-r bg-card">
@@ -46,7 +48,15 @@ export function Sidebar() {
         ))}
       </nav>
       <Separator />
-      <div className="p-2">
+      <div className="p-2 space-y-1">
+        <button
+          onClick={() => setTheme(resolvedTheme === 'dark' ? 'light' : 'dark')}
+          className="flex w-full items-center gap-3 rounded-md px-3 py-2 text-sm font-medium text-muted-foreground transition-colors hover:bg-accent hover:text-accent-foreground"
+        >
+          {resolvedTheme === 'dark'
+            ? <><Sun className="h-4 w-4 shrink-0" />Light mode</>
+            : <><Moon className="h-4 w-4 shrink-0" />Dark mode</>}
+        </button>
         <button
           onClick={() => signOut({ callbackUrl: '/login' })}
           className="flex w-full items-center gap-3 rounded-md px-3 py-2 text-sm font-medium text-muted-foreground transition-colors hover:bg-accent hover:text-accent-foreground"

src/components/layout/ThemeProvider.tsx

@@ -0,0 +1,11 @@
+'use client'
+
+import { ThemeProvider as NextThemesProvider } from 'next-themes'
+
+export function ThemeProvider({ children }: { children: React.ReactNode }) {
+  return (
+    <NextThemesProvider attribute="class" defaultTheme="system" enableSystem disableTransitionOnChange>
+      {children}
+    </NextThemesProvider>
+  )
+}

src/components/transactions/TransactionFilters.tsx

@@ -35,11 +35,15 @@ export function TransactionFilters({ accounts }: { accounts: AccountOption[] })
     [pathname, router],
   )
 
-  // Debounce search → URL
-  useEffect(() => {
-    const t = setTimeout(() => push({ search }), 400)
-    return () => clearTimeout(t)
-  }, [search, push])
+  const pushRef = useRef(push)
+  useEffect(() => { pushRef.current = push }, [push])
+  const searchTimer = useRef<ReturnType<typeof setTimeout> | null>(null)
+
+  function handleSearchChange(value: string) {
+    setSearch(value)
+    if (searchTimer.current) clearTimeout(searchTimer.current)
+    searchTimer.current = setTimeout(() => pushRef.current({ search: value }), 400)
+  }
 
   function reset() {
     setSearch('')
@@ -107,7 +111,7 @@ export function TransactionFilters({ accounts }: { accounts: AccountOption[] })
           className="h-8 text-sm"
           placeholder="Search descriptions…"
           value={search}
-          onChange={(e) => setSearch(e.target.value)}
+          onChange={(e) => handleSearchChange(e.target.value)}
         />
       </div>
 

src/lib/csv/bank-profiles.ts

@@ -1,4 +1,4 @@
-export type ParseStrategy = 'A' | 'B'
+export type ParseStrategy = 'A' | 'B' | 'C'
 
 export interface NormalizerConfig {
   strategy: ParseStrategy
@@ -11,6 +11,8 @@ export interface NormalizerConfig {
   // Strategy B
   debitColumn?: string
   creditColumn?: string
+  // Strategy C
+  typeColumn?: string
 }
 
 export interface BankProfile extends NormalizerConfig {
@@ -25,24 +27,24 @@ export const bankProfiles: BankProfile[] = [
     id: 'discover-savings',
     name: 'Discover High Yield Savings',
     accountType: 'BANK',
-    strategy: 'B',
+    strategy: 'C',
     dateColumn: 'Transaction Date',
     descriptionColumn: 'Transaction Description',
-    debitColumn: 'Debit',
-    creditColumn: 'Credit',
-    detectColumns: ['Transaction Date', 'Transaction Description', 'Debit', 'Credit', 'Balance'],
+    amountColumn: 'Transaction Amount',
+    typeColumn: 'Transaction Type',
+    detectColumns: ['Transaction Date', 'Transaction Description', 'Transaction Type', 'Transaction Amount', 'Balance'],
   },
   {
     id: 'discover-cc',
     name: 'Discover Credit Card',
     accountType: 'CREDIT_CARD',
-    strategy: 'A',
-    dateColumn: 'Trans. Date',
+    strategy: 'B',
+    dateColumn: 'Transaction Date',
     descriptionColumn: 'Description',
     amountColumn: 'Amount',
-    invertAmountSign: true, // negative = DEBIT (charge), positive = CREDIT (payment/refund)
+    invertAmountSign: false, // positive = DEBIT (charge), negative = CREDIT (payment/refund)
     categoryColumn: 'Category',
-    detectColumns: ['Trans. Date', 'Post Date', 'Description', 'Amount', 'Category'],
+    detectColumns: ['Transaction Date', 'Posted Date', 'Card No.', 'Description', 'Category', 'Debit', 'Credit'],
   },
   {
     id: 'huntington-checking',

src/lib/csv/normalizer.ts

@@ -16,10 +16,14 @@ export function parseCents(raw: string): number {
 
 function parseDate(raw: string): Date {
   const trimmed = raw.trim()
-  // MM/DD/YYYY
-  if (/^\d{1,2}\/\d{1,2}\/\d{4}$/.test(trimmed)) {
-    const [m, d, y] = trimmed.split('/')
-    return new Date(parseInt(y), parseInt(m) - 1, parseInt(d))
+  // MM/DD/YYYY or MM/DD/YY
+  const m = /^(\d{1,2})\/(\d{1,2})\/(\d{2}|\d{4})$/.exec(trimmed)
+  if (m) {
+    const month = parseInt(m[1])
+    const day = parseInt(m[2])
+    let year = parseInt(m[3])
+    if (year < 100) year += 2000
+    return new Date(year, month - 1, day)
   }
   const date = new Date(trimmed)
   if (!isNaN(date.getTime())) return date
@@ -49,6 +53,17 @@ function strategyB(
   return { amountCents: Math.abs(parseCents(creditRaw)), type: 'CREDIT' }
 }
 
+function strategyC(
+  amountRaw: string,
+  typeRaw: string,
+): { amountCents: number; type: 'DEBIT' | 'CREDIT' } {
+  const cents = Math.abs(parseCents(amountRaw))
+  const typeNormalized = typeRaw.trim().toUpperCase()
+  if (typeNormalized === 'CREDIT') return { amountCents: cents, type: 'CREDIT' }
+  if (typeNormalized === 'DEBIT') return { amountCents: cents, type: 'DEBIT' }
+  throw new Error(`Unknown transaction type: ${typeRaw}`)
+}
+
 export function normalizeRows(
   rows: Record<string, string>[],
   accountId: string,
@@ -73,6 +88,10 @@ export function normalizeRows(
         const r = strategyB(row[config.debitColumn] ?? '', row[config.creditColumn] ?? '')
         amountCents = r.amountCents
         type = r.type
+      } else if (config.strategy === 'C' && config.amountColumn && config.typeColumn) {
+        const r = strategyC(row[config.amountColumn] ?? '0', row[config.typeColumn] ?? '')
+        amountCents = r.amountCents
+        type = r.type
       } else {
         continue
       }