feat: add Mattermost bot integration and user notification configuration settings

AGENTS.md

@@ -182,3 +182,13 @@ Buatkan file `README.md` yang mendokumentasikan panduan lengkap langkah demi lan
 - Pengaturan Environment: Cara setup konfigurasi environment variables `.env` berdasarkan struktur yang sudah dijelaskan di atas.
 - Eksekusi Migrasi Database: Perintah terminal yang wajib dijalankan secara berurutan untuk sinkronisasi database dan mengaktifkan Prisma Client (contoh: `npx prisma generate` lalu `npx prisma db push`).
 - Menjalankan Aplikasi: Cara menjalankan server lokal (development mode) dan URL default yang bisa diakses di browser.
+
+<!-- BEGIN:nextjs-agent-rules -->
+
+# This is NOT the Next.js you know
+
+This version has breaking changes — APIs, conventions, and file structure may all differ from your training data. Read the relevant guide in `node_modules/next/dist/docs/` (resolved from this file's directory; in monorepos the `next` package may not be visible from the repo root) before writing any code. Heed deprecation notices.
+
+This block is written and re-added by `next dev` — verify at `node_modules/next/dist/server/lib/generate-agent-files.js`. Removing it from a diff only re-creates the uncommitted change; committing it with your work keeps the tree clean.
+
+<!-- END:nextjs-agent-rules -->

prisma/schema.prisma

@@ -19,6 +19,9 @@ model User {
   updated_at          DateTime             @updatedAt
   orders              Order[]              @relation("CreatedOrders")
   purchases           Submission[]
+  creator_withdrawals BalanceWithdrawal[]     @relation("CreatorWithdrawals")
+  user_withdrawals    BalanceWithdrawal[]     @relation("UserWithdrawals")
+  notification_config UserNotificationConfig?
 }
 
 model Order {
@@ -78,3 +81,26 @@ model Setting {
   value      String
   updated_at DateTime @updatedAt
 }
+
+model BalanceWithdrawal {
+  id         String   @id @default(uuid())
+  creator_id String
+  user_id    String
+  amount     Int
+  note       String?
+  created_at DateTime @default(now())
+  creator    User     @relation("CreatorWithdrawals", fields: [creator_id], references: [id], onDelete: Cascade)
+  user       User     @relation("UserWithdrawals", fields: [user_id], references: [id], onDelete: Cascade)
+}
+
+model UserNotificationConfig {
+  id                    String   @id @default(uuid())
+  user_id               String   @unique
+  mattermost_channel_id String?
+  telegram_chat_id      String?
+  whatsapp_number       String?
+  is_active             Boolean  @default(true)
+  created_at            DateTime @default(now())
+  updated_at            DateTime @updatedAt
+  user                  User     @relation(fields: [user_id], references: [id], onDelete: Cascade)
+}

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

@@ -1,10 +1,36 @@
 'use client'
 
 import { useEffect, useState } from 'react'
-import { getBalancesAsCreator, getBalancesAsSubmittor, getSessionUser } from '@/app/actions'
+import {
+  getBalancesAsCreator,
+  getBalancesAsSubmittor,
+  getSessionUser,
+  createWithdrawal,
+  getWithdrawalHistory,
+  deleteWithdrawal,
+} from '@/app/actions'
 import { Card, CardContent } from '@/components/ui/card'
-import { Wallet, ArrowDownRight, ArrowUpRight, Loader2 } from 'lucide-react'
+import { Button } from '@/components/ui/button'
+import { Input } from '@/components/ui/input'
+import { Label } from '@/components/ui/label'
+import { Dialog, DialogContent, DialogTitle } from '@/components/ui/dialog'
+import {
+  Wallet,
+  ArrowDownRight,
+  ArrowUpRight,
+  Loader2,
+  Banknote,
+  History,
+  Trash2,
+  ChevronDown,
+  ChevronUp,
+  AlertTriangle,
+  CheckCircle2,
+  FileText,
+} from 'lucide-react'
 import { cn } from '@/lib/utils'
+import { format } from 'date-fns'
+import { id as idLocale } from 'date-fns/locale'
 
 export default function BalancesPage() {
   const [activeTab, setActiveTab] = useState<'SUBMITTOR' | 'CREATOR'>('SUBMITTOR')
@@ -13,6 +39,24 @@ export default function BalancesPage() {
   const [creatorBalances, setCreatorBalances] = useState<any[]>([])
   const [loading, setLoading] = useState(true)
 
+  // Modal state
+  const [withdrawTarget, setWithdrawTarget] = useState<any | null>(null)
+  const [modalOpen, setModalOpen] = useState(false)
+  const [withdrawAmount, setWithdrawAmount] = useState('')
+  const [withdrawNote, setWithdrawNote] = useState('')
+  const [saving, setSaving] = useState(false)
+  const [modalError, setModalError] = useState('')
+
+  // History state per user
+  const [historyMap, setHistoryMap] = useState<Record<string, any[]>>({})
+  const [expandedHistory, setExpandedHistory] = useState<Record<string, boolean>>({})
+  const [loadingHistory, setLoadingHistory] = useState<Record<string, boolean>>({})
+  const [deletingId, setDeletingId] = useState<string | null>(null)
+
+  // Delete confirm
+  const [deleteTarget, setDeleteTarget] = useState<{ id: string; amount: number } | null>(null)
+  const [deleteModalOpen, setDeleteModalOpen] = useState(false)
+
   useEffect(() => {
     const init = async () => {
       const user = await getSessionUser()
@@ -42,6 +86,83 @@ export default function BalancesPage() {
       maximumFractionDigits: 0,
     }).format(n)
 
+  const openWithdrawModal = (e: React.MouseEvent, balance: any) => {
+    e.stopPropagation()
+    setWithdrawTarget(balance)
+    setWithdrawAmount(String(balance.amount))
+    setWithdrawNote('')
+    setModalError('')
+    setModalOpen(true)
+  }
+
+  const handleWithdraw = async () => {
+    if (!withdrawTarget || !userId) return
+    const amount = parseInt(withdrawAmount.replace(/\D/g, '')) || 0
+    if (amount <= 0) {
+      setModalError('Nominal harus lebih dari 0')
+      return
+    }
+    if (amount > withdrawTarget.amount) {
+      setModalError(`Tidak boleh melebihi saldo tersedia (${formatRupiah(withdrawTarget.amount)})`)
+      return
+    }
+    setSaving(true)
+    setModalError('')
+    const res = await createWithdrawal({
+      creator_id: userId,
+      user_id: withdrawTarget.user.id,
+      amount,
+      note: withdrawNote.trim() || undefined,
+    })
+    setSaving(false)
+    if (res.success) {
+      setModalOpen(false)
+      loadData(userId)
+      if (expandedHistory[withdrawTarget.user.id]) {
+        loadHistory(withdrawTarget.user.id)
+      }
+    } else {
+      setModalError(res.error || 'Gagal mencatat pengembalian')
+    }
+  }
+
+  const loadHistory = async (targetUserId: string) => {
+    if (!userId) return
+    setLoadingHistory((prev) => ({ ...prev, [targetUserId]: true }))
+    const history = await getWithdrawalHistory(userId, targetUserId)
+    setHistoryMap((prev) => ({ ...prev, [targetUserId]: history }))
+    setLoadingHistory((prev) => ({ ...prev, [targetUserId]: false }))
+  }
+
+  const toggleHistory = (targetUserId: string) => {
+    const willOpen = !expandedHistory[targetUserId]
+    setExpandedHistory((prev) => ({ ...prev, [targetUserId]: willOpen }))
+    if (willOpen && !historyMap[targetUserId]) {
+      loadHistory(targetUserId)
+    }
+  }
+
+  const confirmDelete = (id: string, amount: number) => {
+    setDeleteTarget({ id, amount })
+    setDeleteModalOpen(true)
+  }
+
+  const handleDelete = async () => {
+    if (!deleteTarget || !userId) return
+    setDeletingId(deleteTarget.id)
+    const res = await deleteWithdrawal(deleteTarget.id)
+    setDeletingId(null)
+    setDeleteModalOpen(false)
+    if (res.success) {
+      loadData(userId)
+      Object.keys(expandedHistory).forEach((uid) => {
+        if (expandedHistory[uid]) loadHistory(uid)
+      })
+    } else {
+      alert(res.error || 'Gagal menghapus')
+    }
+  }
+
   return (
     <div className="animate-in fade-in space-y-6 pb-12 duration-500">
       <div>
@@ -86,149 +207,581 @@ export default function BalancesPage() {
           <span className="text-xs font-semibold text-slate-500">Memuat saldo...</span>
         </div>
       ) : activeTab === 'SUBMITTOR' ? (
-        <div className="space-y-4">
+        <div className="space-y-5">
-          <div className="mb-6 rounded-xl border border-blue-100 bg-blue-50 p-4 dark:border-blue-900/50 dark:bg-blue-950/30">
+          <div className="rounded-xl border border-blue-100 bg-blue-50 p-4 dark:border-blue-900/50 dark:bg-blue-950/30">
             <h3 className="mb-1 text-sm font-bold text-blue-900 dark:text-blue-100">
               Saldo Anda di Kreator Lain
             </h3>
             <p className="text-xs leading-relaxed text-blue-700 dark:text-blue-300">
               Jika saldo <strong>positif</strong> (hijau), Anda memiliki deposit yang bisa digunakan
-              untuk pesanan berikutnya di kreator tersebut. Jika <strong>negatif</strong> (merah),
+              untuk pesanan berikutnya. Jika <strong>negatif</strong> (merah), Anda berhutang.
-              Anda berhutang.
             </p>
           </div>
 
           {submittorBalances.length === 0 ? (
-            <div className="rounded-3xl border-2 border-dashed border-slate-200 bg-white p-12 text-center shadow-sm dark:border-slate-800 dark:bg-slate-900">
+            <div className="rounded-2xl border-2 border-dashed border-slate-200 bg-white py-16 text-center dark:border-slate-800 dark:bg-slate-900">
-              <p className="text-xs font-medium text-slate-500">Belum ada catatan saldo.</p>
+              <div className="mx-auto mb-4 flex h-14 w-14 items-center justify-center rounded-2xl bg-slate-100 dark:bg-slate-800">
+                <Wallet className="h-7 w-7 text-slate-300 dark:text-slate-600" />
+              </div>
+              <p className="text-sm font-semibold text-slate-500">Belum ada catatan saldo</p>
+              <p className="mt-1 text-xs text-slate-400">
+                Saldo muncul saat ada sisa atau kekurangan bayar dari PO.
+              </p>
             </div>
           ) : (
-            <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 md:grid-cols-3">
+            <div className="space-y-3">
-              {submittorBalances.map((b, i) => (
+              {submittorBalances.map((b, i) => {
-                <Card
+                const isPositive = b.amount > 0
+
+                return (
+                  <div
                     key={i}
-                  className="overflow-hidden rounded-2xl border-slate-200/90 shadow-sm transition-all hover:border-[#1B2CC1]/30 dark:border-slate-800"
+                    className={cn(
+                      'overflow-hidden rounded-2xl border bg-white shadow-sm dark:bg-slate-900',
+                      isPositive
+                        ? 'border-emerald-100 dark:border-emerald-900/40'
+                        : 'border-rose-100 dark:border-rose-900/40'
+                    )}
                   >
-                  <div className="flex items-center gap-3 border-b border-slate-100 bg-slate-50/50 p-4 dark:border-slate-800 dark:bg-slate-800/40">
+                    <div className="flex items-stretch">
+                      {/* Left accent strip */}
+                      <div
+                        className={cn(
+                          'w-1 shrink-0',
+                          isPositive ? 'bg-emerald-400' : 'bg-rose-400'
+                        )}
+                      />
+
+                      <div className="flex flex-1 flex-col gap-0">
+                        {/* Main info row */}
+                        <div className="flex items-center justify-between gap-4 px-4 py-4">
+                          {/* Avatar + name */}
+                          <div className="flex min-w-0 items-center gap-3">
+                            <div className="relative shrink-0">
                               {b.creator.photo ? (
                                 <img
                                   src={b.creator.photo}
                                   alt={b.creator.name}
-                        className="h-10 w-10 rounded-full object-cover shadow-sm ring-2 ring-white dark:ring-slate-900"
+                                  className="h-10 w-10 rounded-full object-cover"
                                 />
                               ) : (
-                      <div className="flex h-10 w-10 items-center justify-center rounded-full bg-[#1B2CC1]/10 text-sm font-bold text-[#1B2CC1] shadow-sm ring-2 ring-white dark:ring-slate-900">
+                                <div
+                                  className={cn(
+                                    'flex h-10 w-10 items-center justify-center rounded-full text-sm font-black',
+                                    isPositive
+                                      ? 'bg-emerald-100 text-emerald-600 dark:bg-emerald-950/60 dark:text-emerald-400'
+                                      : 'bg-rose-100 text-rose-600 dark:bg-rose-950/60 dark:text-rose-400'
+                                  )}
+                                >
                                   {b.creator.name.charAt(0).toUpperCase()}
                                 </div>
                               )}
-                    <div>
+                              {/* Status dot */}
-                      <p className="text-sm font-bold text-slate-900 dark:text-white">
+                              <span
+                                className={cn(
+                                  'absolute -right-0.5 -bottom-0.5 h-3 w-3 rounded-full border-2 border-white dark:border-slate-900',
+                                  isPositive ? 'bg-emerald-400' : 'bg-rose-400'
+                                )}
+                              />
+                            </div>
+                            <div className="min-w-0">
+                              <p className="truncate text-sm font-bold text-slate-900 dark:text-white">
                                 {b.creator.name}
                               </p>
-                      <p className="text-[10px] font-semibold tracking-wider text-slate-500 uppercase">
+                              <p className="text-[10px] font-medium text-slate-400">Kreator</p>
-                        Kreator
+                            </div>
+                          </div>
+
+                          {/* Amount */}
+                          <div className="shrink-0 text-right">
+                            <p className="text-[10px] font-semibold tracking-wider text-slate-400 uppercase">
+                              Total Saldo
+                            </p>
+                            <p
+                              className={cn(
+                                'text-xl font-black tabular-nums',
+                                isPositive
+                                  ? 'text-emerald-600 dark:text-emerald-400'
+                                  : 'text-rose-600 dark:text-rose-400'
+                              )}
+                            >
+                              {formatRupiah(Math.abs(b.amount))}
                             </p>
                           </div>
                         </div>
-                  <CardContent className="bg-white p-4 dark:bg-slate-900">
+
-                    <div className="flex flex-col gap-1">
+                        {/* Footer */}
-                      <span className="text-[11px] font-bold tracking-wider text-slate-400 uppercase">
-                        Total Saldo
-                      </span>
                         <div
                           className={cn(
-                          'flex items-center gap-1.5 text-xl font-black',
+                            'flex items-center justify-between gap-2 border-t px-4 py-2.5',
-                          b.amount > 0 ? 'text-emerald-600' : 'text-rose-600'
+                            isPositive
+                              ? 'border-emerald-50 bg-emerald-50/60 dark:border-emerald-900/30 dark:bg-emerald-950/20'
+                              : 'border-rose-50 bg-rose-50/60 dark:border-rose-900/30 dark:bg-rose-950/20'
                           )}
                         >
-                        {b.amount > 0 ? (
+                          <span
-                          <ArrowUpRight className="h-5 w-5" />
+                            className={cn(
+                              'inline-flex items-center gap-1.5 rounded-full px-2.5 py-1 text-[11px] font-bold',
+                              isPositive
+                                ? 'bg-emerald-100 text-emerald-700 dark:bg-emerald-950/60 dark:text-emerald-400'
+                                : 'bg-rose-100 text-rose-700 dark:bg-rose-950/60 dark:text-rose-400'
+                            )}
+                          >
+                            {isPositive ? (
+                              <ArrowUpRight className="h-3 w-3" />
                             ) : (
-                          <ArrowDownRight className="h-5 w-5" />
+                              <ArrowDownRight className="h-3 w-3" />
+                            )}
+                            {isPositive ? 'Deposit Tersedia' : 'Anda Berhutang'}
+                          </span>
+
+                          {isPositive && (
+                            <p className="text-[10px] font-medium text-emerald-600 dark:text-emerald-400">
+                              ✓ Bisa dipakai untuk PO
+                            </p>
                           )}
-                        {formatRupiah(b.amount)}
                         </div>
                       </div>
-                  </CardContent>
+                    </div>
-                </Card>
+                  </div>
-              ))}
+                )
+              })}
             </div>
           )}
         </div>
       ) : (
-        <div className="space-y-4">
+        /* TAB CREATOR */
-          <div className="mb-6 rounded-xl border border-amber-100 bg-amber-50 p-4 dark:border-amber-900/50 dark:bg-amber-950/30">
+        <div className="space-y-5">
+          <div className="rounded-xl border border-amber-100 bg-amber-50 p-4 dark:border-amber-900/50 dark:bg-amber-950/30">
             <h3 className="mb-1 text-sm font-bold text-amber-900 dark:text-amber-100">
               Saldo Orang Lain di Anda
             </h3>
             <p className="text-xs leading-relaxed text-amber-700 dark:text-amber-300">
-              Jika saldo <strong>positif</strong> (merah bagi Anda), artinya Anda memegang uang
+              Saldo <strong>positif</strong> = Anda memegang uang lebih milik penitip. Klik{' '}
-              lebih milik penitip (Hutang Anda ke mereka). Jika <strong>negatif</strong> (hijau),
+              <strong>Kembalikan</strong> untuk mencatatnya. Saldo <strong>negatif</strong> =
-              mereka berhutang ke Anda.
+              penitip masih berhutang ke Anda.
             </p>
           </div>
 
           {creatorBalances.length === 0 ? (
-            <div className="rounded-3xl border-2 border-dashed border-slate-200 bg-white p-12 text-center shadow-sm dark:border-slate-800 dark:bg-slate-900">
+            <div className="rounded-2xl border-2 border-dashed border-slate-200 bg-white py-16 text-center dark:border-slate-800 dark:bg-slate-900">
-              <p className="text-xs font-medium text-slate-500">
+              <div className="mx-auto mb-4 flex h-14 w-14 items-center justify-center rounded-2xl bg-slate-100 dark:bg-slate-800">
-                Belum ada penitip yang memiliki catatan saldo dengan Anda.
+                <Wallet className="h-7 w-7 text-slate-300 dark:text-slate-600" />
+              </div>
+              <p className="text-sm font-semibold text-slate-500">Tidak ada catatan saldo</p>
+              <p className="mt-1 text-xs text-slate-400">
+                Saldo muncul saat ada kelebihan atau kekurangan bayar.
               </p>
             </div>
           ) : (
-            <div className="grid grid-cols-1 gap-4 sm:grid-cols-2 md:grid-cols-3">
+            <div className="space-y-3">
-              {creatorBalances.map((b, i) => (
+              {creatorBalances.map((b, i) => {
-                <Card
+                const uid = b.user.id
+                const isExpanded = expandedHistory[uid]
+                const history = historyMap[uid] || []
+                const isLoadingHist = loadingHistory[uid]
+                const isPositive = b.amount > 0
+
+                return (
+                  <div
                     key={i}
-                  className="overflow-hidden rounded-2xl border-slate-200/90 shadow-sm transition-all hover:border-[#1B2CC1]/30 dark:border-slate-800"
+                    className={cn(
+                      'overflow-hidden rounded-2xl border bg-white shadow-sm dark:bg-slate-900',
+                      isPositive
+                        ? 'border-rose-100 dark:border-rose-900/40'
+                        : 'border-emerald-100 dark:border-emerald-900/40'
+                    )}
                   >
-                  <div className="flex items-center gap-3 border-b border-slate-100 bg-slate-50/50 p-4 dark:border-slate-800 dark:bg-slate-800/40">
+                    <div className="flex items-stretch">
+                      {/* Left accent strip */}
+                      <div
+                        className={cn(
+                          'w-1 shrink-0',
+                          isPositive ? 'bg-rose-400' : 'bg-emerald-400'
+                        )}
+                      />
+
+                      <div className="flex flex-1 flex-col">
+                        {/* Main info row */}
+                        <div className="flex items-center justify-between gap-4 px-4 py-4">
+                          {/* Avatar + name */}
+                          <div className="flex min-w-0 items-center gap-3">
+                            <div className="relative shrink-0">
                               {b.user.photo ? (
                                 <img
                                   src={b.user.photo}
                                   alt={b.user.name}
-                        className="h-10 w-10 rounded-full object-cover shadow-sm ring-2 ring-white dark:ring-slate-900"
+                                  className="h-10 w-10 rounded-full object-cover"
                                 />
                               ) : (
-                      <div className="flex h-10 w-10 items-center justify-center rounded-full bg-slate-200 text-sm font-bold text-slate-600 shadow-sm ring-2 ring-white dark:bg-slate-700 dark:text-slate-300 dark:ring-slate-900">
+                                <div
+                                  className={cn(
+                                    'flex h-10 w-10 items-center justify-center rounded-full text-sm font-black',
+                                    isPositive
+                                      ? 'bg-rose-100 text-rose-600 dark:bg-rose-950/60 dark:text-rose-400'
+                                      : 'bg-emerald-100 text-emerald-600 dark:bg-emerald-950/60 dark:text-emerald-400'
+                                  )}
+                                >
                                   {b.user.name.charAt(0).toUpperCase()}
                                 </div>
                               )}
-                    <div>
+                              <span
-                      <p className="text-sm font-bold text-slate-900 dark:text-white">
+                                className={cn(
+                                  'absolute -right-0.5 -bottom-0.5 h-3 w-3 rounded-full border-2 border-white dark:border-slate-900',
+                                  isPositive ? 'bg-rose-400' : 'bg-emerald-400'
+                                )}
+                              />
+                            </div>
+                            <div className="min-w-0">
+                              <p className="truncate text-sm font-bold text-slate-900 dark:text-white">
                                 {b.user.name}
                               </p>
-                      <p className="text-[10px] font-semibold tracking-wider text-slate-500 uppercase">
+                              <p className="text-[10px] font-medium text-slate-400">Penitip</p>
-                        Penitip
+                            </div>
+                          </div>
+
+                          {/* Amount */}
+                          <div className="shrink-0 text-right">
+                            <p className="text-[10px] font-semibold tracking-wider text-slate-400 uppercase">
+                              {isPositive ? 'Anda Hutang' : 'Piutang Anda'}
+                            </p>
+                            <p
+                              className={cn(
+                                'text-xl font-black tabular-nums',
+                                isPositive
+                                  ? 'text-rose-600 dark:text-rose-400'
+                                  : 'text-emerald-600 dark:text-emerald-400'
+                              )}
+                            >
+                              {formatRupiah(Math.abs(b.amount))}
                             </p>
                           </div>
                         </div>
-                  <CardContent className="bg-white p-4 dark:bg-slate-900">
+
-                    <div className="flex flex-col gap-1">
+                        {/* Footer row */}
-                      <span className="text-[11px] font-bold tracking-wider text-slate-400 uppercase">
-                        Saldo Penitip
-                      </span>
-                      {/* From Creator perspective: positive balance of submittor is bad for creator (creator holds their money) */}
                         <div
                           className={cn(
-                          'flex items-center gap-1.5 text-xl font-black',
+                            'flex items-center justify-between gap-2 border-t px-4 py-2.5',
-                          b.amount > 0 ? 'text-rose-600' : 'text-emerald-600'
+                            isPositive
+                              ? 'border-rose-50 bg-rose-50/60 dark:border-rose-900/30 dark:bg-rose-950/20'
+                              : 'border-emerald-50 bg-emerald-50/60 dark:border-emerald-900/30 dark:bg-emerald-950/20'
                           )}
                         >
-                        {b.amount > 0 ? (
+                          <span
-                          <ArrowDownRight className="h-5 w-5" />
+                            className={cn(
-                        ) : (
+                              'inline-flex items-center gap-1.5 rounded-full px-2.5 py-1 text-[11px] font-bold',
-                          <ArrowUpRight className="h-5 w-5" />
+                              isPositive
+                                ? 'bg-rose-100 text-rose-700 dark:bg-rose-950/60 dark:text-rose-400'
+                                : 'bg-emerald-100 text-emerald-700 dark:bg-emerald-950/60 dark:text-emerald-400'
                             )}
-                        {formatRupiah(b.amount)}
+                          >
+                            {isPositive ? (
+                              <ArrowDownRight className="h-3 w-3" />
+                            ) : (
+                              <ArrowUpRight className="h-3 w-3" />
+                            )}
+                            {isPositive ? 'Perlu dikembalikan' : 'Menunggu pelunasan'}
+                          </span>
+
+                          <div className="flex items-center gap-1.5">
+                            {isPositive && (
+                              <Button
+                                size="sm"
+                                onClick={(e) => openWithdrawModal(e, b)}
+                                className="h-7 gap-1 rounded-lg bg-[#1B2CC1] px-2.5 text-[11px] font-bold text-white hover:bg-[#15229E]"
+                              >
+                                <Banknote className="h-3 w-3" />
+                                Kembalikan
+                              </Button>
+                            )}
+                            <button
+                              onClick={() => toggleHistory(uid)}
+                              className={cn(
+                                'flex h-7 items-center gap-1 rounded-lg border px-2.5 text-[11px] font-bold transition-all',
+                                isExpanded
+                                  ? 'border-slate-300 bg-slate-200 text-slate-700 dark:border-slate-600 dark:bg-slate-700 dark:text-slate-200'
+                                  : 'border-slate-200 bg-white text-slate-500 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-800 dark:text-slate-400 dark:hover:bg-slate-700'
+                              )}
+                            >
+                              <History className="h-3 w-3" />
+                              Riwayat
+                              {isExpanded ? (
+                                <ChevronUp className="h-3 w-3" />
+                              ) : (
+                                <ChevronDown className="h-3 w-3" />
+                              )}
+                            </button>
                           </div>
                         </div>
-                  </CardContent>
+
-                </Card>
+                        {/* Collapsible History */}
+                        {isExpanded && (
+                          <div className="border-t border-slate-100 px-4 py-3 dark:border-slate-800">
+                            <p className="mb-2.5 text-[10px] font-bold tracking-widest text-slate-400 uppercase">
+                              Riwayat Pengembalian
+                            </p>
+                            {isLoadingHist ? (
+                              <div className="flex items-center gap-2 py-2">
+                                <Loader2 className="h-3.5 w-3.5 animate-spin text-slate-400" />
+                                <span className="text-xs text-slate-400">Memuat riwayat...</span>
+                              </div>
+                            ) : history.length === 0 ? (
+                              <div className="flex items-center gap-2.5 rounded-xl border border-dashed border-slate-200 bg-slate-50 px-3 py-3 dark:border-slate-700 dark:bg-slate-800/50">
+                                <FileText className="h-4 w-4 shrink-0 text-slate-300 dark:text-slate-600" />
+                                <span className="text-xs text-slate-400">
+                                  Belum ada riwayat pengembalian.
+                                </span>
+                              </div>
+                            ) : (
+                              <div className="space-y-1.5">
+                                {history.map((h: any) => (
+                                  <div
+                                    key={h.id}
+                                    className="flex items-center gap-3 rounded-xl border border-slate-100 bg-slate-50/80 px-3 py-2.5 dark:border-slate-700/60 dark:bg-slate-800/40"
+                                  >
+                                    <div className="flex h-7 w-7 shrink-0 items-center justify-center rounded-full bg-emerald-100 dark:bg-emerald-950/50">
+                                      <CheckCircle2 className="h-4 w-4 text-emerald-600 dark:text-emerald-400" />
+                                    </div>
+                                    <div className="min-w-0 flex-1">
+                                      <p className="text-sm font-bold text-emerald-600 dark:text-emerald-400">
+                                        {formatRupiah(h.amount)}
+                                      </p>
+                                      <div className="mt-0.5 flex items-center gap-1.5">
+                                        <p className="text-[10px] text-slate-400">
+                                          {format(new Date(h.created_at), 'dd MMM yyyy, HH:mm', {
+                                            locale: idLocale,
+                                          })}
+                                        </p>
+                                        {h.note && (
+                                          <>
+                                            <span className="text-[10px] text-slate-300">·</span>
+                                            <p className="truncate text-[10px] text-slate-500 italic">
+                                              "{h.note}"
+                                            </p>
+                                          </>
+                                        )}
+                                      </div>
+                                    </div>
+                                    <button
+                                      onClick={() => confirmDelete(h.id, h.amount)}
+                                      disabled={deletingId === h.id}
+                                      className="flex h-6 w-6 shrink-0 items-center justify-center rounded-lg text-slate-300 transition-colors hover:bg-rose-50 hover:text-rose-500 disabled:opacity-40 dark:text-slate-600 dark:hover:bg-rose-950/40 dark:hover:text-rose-400"
+                                      title="Hapus riwayat ini"
+                                    >
+                                      {deletingId === h.id ? (
+                                        <Loader2 className="h-3.5 w-3.5 animate-spin" />
+                                      ) : (
+                                        <Trash2 className="h-3.5 w-3.5" />
+                                      )}
+                                    </button>
+                                  </div>
                                 ))}
                               </div>
                             )}
                           </div>
                         )}
                       </div>
+                    </div>
+                  </div>
+                )
+              })}
+            </div>
+          )}
+        </div>
+      )}
+
+      {/* MODAL PENGEMBALIAN */}
+      <Dialog open={modalOpen} onOpenChange={(o) => !o && setModalOpen(false)}>
+        <DialogContent className="overflow-hidden rounded-3xl border-slate-200/90 p-0 shadow-2xl sm:max-w-[440px] dark:border-slate-800">
+          <div className="flex items-center gap-3 border-b border-[#1B2CC1]/10 bg-[#1B2CC1]/5 p-5">
+            <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-[#1B2CC1] text-white shadow-md shadow-[#1B2CC1]/20">
+              <Banknote className="h-5 w-5" />
+            </div>
+            <div>
+              <DialogTitle className="text-base font-black text-slate-900 dark:text-white">
+                Kembalikan Saldo
+              </DialogTitle>
+              <p className="text-xs text-slate-500">
+                Catat pengembalian uang ke {withdrawTarget?.user?.name}
+              </p>
+            </div>
+          </div>
+          <div className="space-y-4 bg-white p-5 dark:bg-slate-900">
+            {withdrawTarget && (
+              <div className="flex items-center gap-3 rounded-xl border border-slate-100 bg-slate-50 p-3 dark:border-slate-800 dark:bg-slate-800/50">
+                {withdrawTarget.user.photo ? (
+                  <img
+                    src={withdrawTarget.user.photo}
+                    alt={withdrawTarget.user.name}
+                    className="h-9 w-9 rounded-full object-cover ring-2 ring-white dark:ring-slate-900"
+                  />
+                ) : (
+                  <div className="flex h-9 w-9 items-center justify-center rounded-full bg-slate-200 text-sm font-bold text-slate-600 dark:bg-slate-700 dark:text-slate-300">
+                    {withdrawTarget.user.name.charAt(0).toUpperCase()}
+                  </div>
+                )}
+                <div>
+                  <p className="text-sm font-bold text-slate-900 dark:text-white">
+                    {withdrawTarget.user.name}
+                  </p>
+                  <p className="text-xs text-slate-500">
+                    Saldo tersedia:{' '}
+                    <span className="font-bold text-rose-600">
+                      {formatRupiah(withdrawTarget?.amount || 0)}
+                    </span>
+                  </p>
+                </div>
+              </div>
+            )}
+
+            <div className="space-y-1.5">
+              <Label className="text-[11px] font-bold tracking-wider text-slate-500 uppercase">
+                Nominal Pengembalian
+              </Label>
+              <div className="relative">
+                <span className="absolute top-1/2 left-3 -translate-y-1/2 text-xs font-bold text-slate-400">
+                  Rp
+                </span>
+                <Input
+                  type="number"
+                  placeholder="0"
+                  value={withdrawAmount}
+                  onChange={(e) => {
+                    setWithdrawAmount(e.target.value)
+                    setModalError('')
+                  }}
+                  className="h-11 pl-8 text-sm font-bold"
+                  min={1}
+                  max={withdrawTarget?.amount}
+                />
+              </div>
+              {withdrawTarget && (
+                <div className="flex gap-2 pt-1">
+                  <button
+                    onClick={() => setWithdrawAmount(String(withdrawTarget.amount))}
+                    className="rounded-lg border border-[#1B2CC1]/20 bg-[#1B2CC1]/5 px-2.5 py-1 text-[10px] font-bold text-[#1B2CC1] hover:bg-[#1B2CC1]/10 dark:border-[#1B2CC1]/30"
+                  >
+                    Semua ({formatRupiah(withdrawTarget.amount)})
+                  </button>
+                  {withdrawTarget.amount >= 2 && (
+                    <button
+                      onClick={() =>
+                        setWithdrawAmount(String(Math.floor(withdrawTarget.amount / 2)))
+                      }
+                      className="rounded-lg border border-slate-200 bg-slate-50 px-2.5 py-1 text-[10px] font-bold text-slate-600 hover:bg-slate-100 dark:border-slate-700 dark:bg-slate-800 dark:text-slate-400"
+                    >
+                      Setengah ({formatRupiah(Math.floor(withdrawTarget.amount / 2))})
+                    </button>
+                  )}
+                </div>
+              )}
+            </div>
+
+            <div className="space-y-1.5">
+              <Label className="text-[11px] font-bold tracking-wider text-slate-500 uppercase">
+                Catatan <span className="font-normal text-slate-400 normal-case">(opsional)</span>
+              </Label>
+              <Input
+                placeholder="Contoh: Transfer BCA, Cash langsung, dll"
+                value={withdrawNote}
+                onChange={(e) => setWithdrawNote(e.target.value)}
+                className="h-10 text-sm"
+                maxLength={100}
+              />
+            </div>
+
+            {modalError && (
+              <div className="flex items-start gap-2 rounded-xl border border-rose-200 bg-rose-50 p-3 dark:border-rose-800 dark:bg-rose-950/30">
+                <AlertTriangle className="mt-0.5 h-4 w-4 shrink-0 text-rose-500" />
+                <p className="text-xs font-semibold text-rose-600 dark:text-rose-400">
+                  {modalError}
+                </p>
+              </div>
+            )}
+
+            <div className="flex gap-2 pt-1">
+              <Button
+                variant="outline"
+                onClick={() => setModalOpen(false)}
+                disabled={saving}
+                className="h-10 flex-1 rounded-xl font-bold"
+              >
+                Batal
+              </Button>
+              <Button
+                onClick={handleWithdraw}
+                disabled={saving || !withdrawAmount}
+                className="h-10 flex-1 gap-2 rounded-xl bg-[#1B2CC1] font-bold text-white shadow-md shadow-[#1B2CC1]/20 hover:bg-[#15229E] disabled:opacity-60"
+              >
+                {saving ? (
+                  <>
+                    <Loader2 className="h-4 w-4 animate-spin" />
+                    Menyimpan...
+                  </>
+                ) : (
+                  <>
+                    <CheckCircle2 className="h-4 w-4" />
+                    Simpan Pengembalian
+                  </>
+                )}
+              </Button>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
+
+      {/* MODAL DELETE CONFIRM */}
+      <Dialog open={deleteModalOpen} onOpenChange={(o) => !o && setDeleteModalOpen(false)}>
+        <DialogContent className="overflow-hidden rounded-3xl border-slate-200/90 p-0 shadow-2xl sm:max-w-[400px] dark:border-slate-800">
+          <div className="flex items-center gap-3 border-b border-rose-100 bg-rose-50 p-5 dark:border-rose-900/50 dark:bg-rose-950/30">
+            <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-rose-600 text-white shadow-md shadow-rose-600/20">
+              <AlertTriangle className="h-5 w-5" />
+            </div>
+            <div>
+              <DialogTitle className="text-base font-black text-slate-900 dark:text-white">
+                Hapus Riwayat?
+              </DialogTitle>
+              <p className="text-xs text-slate-500">Saldo akan kembali bertambah</p>
+            </div>
+          </div>
+          <div className="space-y-4 bg-white p-5 dark:bg-slate-900">
+            <div className="rounded-xl border border-slate-100 bg-slate-50 p-3 text-center dark:border-slate-800 dark:bg-slate-800/50">
+              <p className="text-xs text-slate-500">Pengembalian sebesar</p>
+              <p className="text-lg font-black text-slate-900 dark:text-white">
+                {formatRupiah(deleteTarget?.amount || 0)}
+              </p>
+              <p className="mt-1 text-xs text-slate-500">akan dihapus dari riwayat.</p>
+            </div>
+            <div className="flex gap-2">
+              <Button
+                variant="outline"
+                onClick={() => setDeleteModalOpen(false)}
+                disabled={!!deletingId}
+                className="h-10 flex-1 rounded-xl font-bold"
+              >
+                Batal
+              </Button>
+              <Button
+                onClick={handleDelete}
+                disabled={!!deletingId}
+                className="h-10 flex-1 gap-2 rounded-xl bg-rose-600 font-bold text-white hover:bg-rose-700"
+              >
+                {deletingId ? (
+                  <>
+                    <Loader2 className="h-4 w-4 animate-spin" />
+                    Menghapus...
+                  </>
+                ) : (
+                  <>
+                    <Trash2 className="h-4 w-4" />
+                    Ya, Hapus
+                  </>
+                )}
+              </Button>
+            </div>
+          </div>
+        </DialogContent>
+      </Dialog>
+    </div>
   )
 }

src/app/(app)/my-orders/page.tsx

@@ -5,30 +5,15 @@ import {
   getMyOrders,
   createOrder,
   updateOrder,
-  duplicateOrder,
   updateOrderStatus,
   deleteOrder,
   getSessionUser,
 } from '@/app/actions'
 import { Button, buttonVariants } from '@/components/ui/button'
 import { cn } from '@/lib/utils'
-import {
+
-  Card,
-  CardContent,
-  CardDescription,
-  CardFooter,
-  CardHeader,
-  CardTitle,
-} from '@/components/ui/card'
-import { Badge } from '@/components/ui/badge'
 import { ShareButton } from '@/components/ShareButton'
-import {
+import { Dialog, DialogContent, DialogTitle, DialogTrigger } from '@/components/ui/dialog'
-  Dialog,
-  DialogContent,
-  DialogHeader,
-  DialogTitle,
-  DialogTrigger,
-} from '@/components/ui/dialog'
 import { Textarea } from '@/components/ui/textarea'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
@@ -53,6 +38,7 @@ import {
   ChevronLeft,
   ChevronRight,
 } from 'lucide-react'
+import PiutangManager from '@/components/PiutangManager'
 
 export default function MyOrdersPage() {
   const [userId, setUserId] = useState<string | null>(null)
@@ -63,6 +49,7 @@ export default function MyOrdersPage() {
   const [orderToDelete, setOrderToDelete] = useState<any | null>(null)
   const [orderToDuplicate, setOrderToDuplicate] = useState<any | null>(null)
   const [deleting, setDeleting] = useState(false)
+  const [mainTab, setMainTab] = useState<'PO' | 'PIUTANG'>('PO')
   const [activeTab, setActiveTab] = useState<'ALL' | 'OPEN' | 'DRAFT' | 'CLOSE'>('ALL')
   const [currentPage, setCurrentPage] = useState(1)
   const [searchQuery, setSearchQuery] = useState('')
@@ -154,6 +141,34 @@ export default function MyOrdersPage() {
 
   return (
     <div className="animate-in fade-in space-y-6 pb-12 duration-500">
+      {/* Main Tab Switcher */}
+      <div className="flex w-full max-w-sm rounded-xl border border-slate-200 bg-slate-100 p-1 dark:border-slate-800 dark:bg-slate-900">
+        <button
+          onClick={() => setMainTab('PO')}
+          className={cn(
+            'flex-1 rounded-lg py-2 text-xs font-bold transition-all',
+            mainTab === 'PO'
+              ? 'bg-white text-slate-900 shadow-sm dark:bg-slate-800 dark:text-white'
+              : 'text-slate-500 hover:text-slate-700 dark:hover:text-slate-300'
+          )}
+        >
+          Daftar PO
+        </button>
+        <button
+          onClick={() => setMainTab('PIUTANG')}
+          className={cn(
+            'flex-1 rounded-lg py-2 text-xs font-bold transition-all',
+            mainTab === 'PIUTANG'
+              ? 'bg-white text-slate-900 shadow-sm dark:bg-slate-800 dark:text-white'
+              : 'text-slate-500 hover:text-slate-700 dark:hover:text-slate-300'
+          )}
+        >
+          Kelola Piutang
+        </button>
+      </div>
+
+      {mainTab === 'PO' ? (
+        <>
           {/* Top Controls & Segmented Control */}
           <div className="flex flex-col items-start justify-between gap-4 rounded-2xl border border-slate-200/80 bg-white p-4 shadow-sm md:flex-row md:items-center dark:border-slate-800 dark:bg-slate-900">
             <div className="flex w-full flex-col items-start gap-4 md:w-auto md:flex-row md:items-center">
@@ -172,7 +187,11 @@ export default function MyOrdersPage() {
                   >
                     {tab === 'ALL' ? 'Semua PO' : tab}
                     <span className="ml-1.5 text-[10px] opacity-70">
-                  ({tab === 'ALL' ? orders.length : orders.filter((o) => o.status === tab).length})
+                      (
+                      {tab === 'ALL'
+                        ? orders.length
+                        : orders.filter((o) => o.status === tab).length}
+                      )
                     </span>
                   </button>
                 ))}
@@ -386,15 +405,17 @@ export default function MyOrdersPage() {
                                 <span className="rounded bg-emerald-50 px-1.5 py-0.5 text-[10px] font-black text-emerald-700 dark:bg-emerald-950/50 dark:text-emerald-400">
                                   Lunas:{' '}
                                   {
-                                order.submissions.filter((s: any) => s.payment_status === 'LUNAS')
+                                    order.submissions.filter(
-                                  .length
+                                      (s: any) => s.payment_status === 'LUNAS'
+                                    ).length
                                   }
                                 </span>
                                 <span className="rounded bg-rose-50 px-1.5 py-0.5 text-[10px] font-black text-rose-700 dark:bg-rose-950/50 dark:text-rose-400">
                                   Belum:{' '}
                                   {
-                                order.submissions.filter((s: any) => s.payment_status !== 'LUNAS')
+                                    order.submissions.filter(
-                                  .length
+                                      (s: any) => s.payment_status !== 'LUNAS'
+                                    ).length
                                   }
                                 </span>
                               </div>
@@ -618,6 +639,10 @@ export default function MyOrdersPage() {
               )}
             </div>
           )}
+        </>
+      ) : (
+        <PiutangManager creatorId={userId!} />
+      )}
     </div>
   )
 }

src/app/(app)/my-purchases/page.tsx

@@ -436,14 +436,15 @@ export default function MyPurchasesPage() {
                           </Button>
                         </div>
                       ) : (
-                        <div className="flex items-center justify-center gap-1.5 rounded-xl bg-slate-100/70 py-2 text-[11px] font-medium text-slate-400 dark:bg-slate-800/40">
+                        // <div className="flex items-center justify-center gap-1.5 rounded-xl bg-slate-100/70 py-2 text-[11px] font-medium text-slate-400 dark:bg-slate-800/40">
-                          <Lock className="h-3 w-3" />
+                        //   <Lock className="h-3 w-3" />
-                          <span className="text-center leading-tight">
+                        //   <span className="text-center leading-tight">
-                            PO ditutup
+                        //     PO ditutup
-                            <br />
+                        //     <br />
-                            (pesanan terkunci)
+                        //     (pesanan terkunci)
-                          </span>
+                        //   </span>
-                        </div>
+                        // </div>
+                        <div></div>
                       )}
                     </div>
                   </div>

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

@@ -1,7 +1,7 @@
 'use client'
 
 import { useEffect, useState } from 'react'
-import { getSessionUser, updateProfile, changePassword } from '@/app/actions'
+import { getSessionUser, updateProfile, changePassword, getSettings, getUserNotificationConfig, updateUserNotificationConfig } from '@/app/actions'
 import { Card, CardContent, CardHeader, CardTitle, CardFooter } from '@/components/ui/card'
 import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
@@ -21,6 +21,7 @@ import {
   UserCircle,
   KeyRound,
   LockKeyhole,
+  MessageCircle,
 } from 'lucide-react'
 
 export default function ProfilePage() {
@@ -29,6 +30,13 @@ export default function ProfilePage() {
   const [photo, setPhoto] = useState('')
   const [loading, setLoading] = useState(true)
 
+  // Notification Config state
+  const [globalNotifEnabled, setGlobalNotifEnabled] = useState(false)
+  const [mmChannelId, setMmChannelId] = useState('')
+  const [mmActive, setMmActive] = useState(true)
+  const [savingNotif, setSavingNotif] = useState(false)
+  const [notifSuccess, setNotifSuccess] = useState(false)
+
   // Profile state
   const [savingProfile, setSavingProfile] = useState(false)
   const [profileError, setProfileError] = useState('')
@@ -54,6 +62,20 @@ export default function ProfilePage() {
       setUser(sessionUser)
       setName(sessionUser.name)
       setPhoto(sessionUser.photo || '')
+
+      const [globalSettings, notifConfig] = await Promise.all([
+        getSettings(),
+        getUserNotificationConfig(sessionUser.id)
+      ])
+
+      if (globalSettings?.MATTERMOST_NOTIF_ENABLED === 'true') {
+        setGlobalNotifEnabled(true)
+      }
+
+      if (notifConfig?.success && notifConfig.config) {
+        setMmChannelId(notifConfig.config.mattermost_channel_id || '')
+        setMmActive(notifConfig.config.is_active ?? true)
+      }
     }
     setLoading(false)
   }
@@ -69,14 +91,20 @@ export default function ProfilePage() {
     setProfileSuccess(false)
     setSavingProfile(true)
 
-    const res = await updateProfile(user.id, name.trim(), photo.trim() || null)
+    const [res, notifRes] = await Promise.all([
+      updateProfile(user.id, name.trim(), photo.trim() || null),
+      globalNotifEnabled ? updateUserNotificationConfig(user.id, {
+        mattermost_channel_id: mmChannelId,
+        is_active: mmActive
+      }) : Promise.resolve({ success: true, error: null })
+    ])
 
-    if (res.success) {
+    if (res.success && notifRes.success) {
       setUser(res.user)
       setProfileSuccess(true)
       setTimeout(() => setProfileSuccess(false), 3000)
     } else {
-      setProfileError(res.error || 'Terjadi kesalahan')
+      setProfileError(res.error || notifRes.error || 'Terjadi kesalahan')
     }
     setSavingProfile(false)
   }
@@ -215,6 +243,55 @@ export default function ProfilePage() {
                   />
                 </div>
 
+                {globalNotifEnabled && (
+                  <div className="space-y-6 pt-6 mt-6 border-t border-slate-100 dark:border-slate-800">
+                    <div className="flex items-center gap-3">
+                      <div className="flex h-10 w-10 shrink-0 items-center justify-center rounded-xl bg-purple-100 text-purple-600 dark:bg-purple-900/30 dark:text-purple-400">
+                        <MessageCircle className="h-5 w-5" />
+                      </div>
+                      <div>
+                        <h3 className="text-sm font-bold text-slate-900 dark:text-white">
+                          Notifikasi Mattermost
+                        </h3>
+                        <p className="mt-0.5 text-[11px] text-slate-500">
+                          Terima update pesanan PO langsung di DM Mattermost Anda.
+                        </p>
+                      </div>
+                    </div>
+
+                    <div className="flex flex-row items-start space-x-3 space-y-0 rounded-md border border-slate-200 p-4 dark:border-slate-800">
+                      <input
+                        type="checkbox"
+                        id="mmActive"
+                        checked={mmActive}
+                        onChange={(e) => setMmActive(e.target.checked)}
+                        className="mt-1 h-4 w-4 rounded border-slate-300 text-[#1B2CC1] focus:ring-[#1B2CC1]"
+                      />
+                      <div className="space-y-1 leading-none">
+                        <Label htmlFor="mmActive" className="text-sm font-bold">
+                          Aktifkan Notifikasi
+                        </Label>
+                        <p className="text-[11px] text-slate-500">
+                          Kirim notifikasi setiap kali ada yang merubah pesanannya di PO Anda.
+                        </p>
+                      </div>
+                    </div>
+
+                    <div className="space-y-1.5">
+                      <Label htmlFor="mm-channel" className="text-xs font-bold tracking-wider text-slate-700 uppercase dark:text-slate-300">
+                        Username / Channel ID
+                      </Label>
+                      <Input
+                        id="mm-channel"
+                        value={mmChannelId}
+                        onChange={(e) => setMmChannelId(e.target.value)}
+                        placeholder="Contoh: @firman atau 9dpxnitm..."
+                        className="h-11 rounded-xl"
+                      />
+                    </div>
+                  </div>
+                )}
+
                 {profileError && (
                   <div className="rounded-xl bg-red-50 p-3 text-xs font-semibold text-red-600">
                     {profileError}
@@ -223,7 +300,7 @@ export default function ProfilePage() {
                 {profileSuccess && (
                   <div className="flex items-center gap-2 rounded-xl bg-emerald-50 p-3 text-xs font-bold text-emerald-700">
                     <CheckCircle className="h-4 w-4" />
-                    <span>Profil berhasil diperbarui!</span>
+                    <span>Perubahan berhasil disimpan!</span>
                   </div>
                 )}
               </CardContent>
@@ -244,6 +321,7 @@ export default function ProfilePage() {
               </div>
             </form>
           </Card>
+
         </div>
 
         {/* Right 1 Col: Account Details */}

src/app/(app)/settings/integrations/page.tsx

@@ -8,11 +8,15 @@ import { Button } from '@/components/ui/button'
 import { Input } from '@/components/ui/input'
 import { Label } from '@/components/ui/label'
 import { Textarea } from '@/components/ui/textarea'
+import { Checkbox } from '@/components/ui/checkbox'
 
 export default function IntegrationsPage() {
   const [loading, setLoading] = useState(true)
   const [saving, setSaving] = useState(false)
   const [settings, setSettings] = useState({
+    MATTERMOST_NOTIF_ENABLED: 'false',
+    MATTERMOST_BOT_TOKEN: '',
+    MATTERMOST_API_URL: '',
     MATTERMOST_WEBHOOK_URL: '',
     MATTERMOST_TEMPLATE: '',
     WHATSAPP_TEMPLATE: '',
@@ -23,6 +27,9 @@ export default function IntegrationsPage() {
       const data = await getSettings()
       if (data) {
         setSettings({
+          MATTERMOST_NOTIF_ENABLED: data.MATTERMOST_NOTIF_ENABLED || 'false',
+          MATTERMOST_BOT_TOKEN: data.MATTERMOST_BOT_TOKEN || '',
+          MATTERMOST_API_URL: data.MATTERMOST_API_URL || '',
           MATTERMOST_WEBHOOK_URL: data.MATTERMOST_WEBHOOK_URL || '',
           MATTERMOST_TEMPLATE:
             data.MATTERMOST_TEMPLATE ||
@@ -80,14 +87,54 @@ export default function IntegrationsPage() {
         <div className="space-y-4 rounded-2xl border border-slate-200 bg-slate-50/50 p-5 dark:border-slate-800 dark:bg-slate-900/50">
           <div className="flex items-center gap-2 font-black text-indigo-600 dark:text-indigo-400">
             <MessageSquare className="h-5 w-5" />
-            <h3>Mattermost Webhook</h3>
+            <h3>Konfigurasi Mattermost</h3>
           </div>
           <p className="text-xs text-slate-500">
-            Gunakan URL Incoming Webhook dari Mattermost untuk mengirim broadcast PO baru secara
+            Atur integrasi Mattermost. Bagian atas untuk Notifikasi Personal (DM) ke Kreator, sedangkan bagian bawah untuk fitur Share (Broadcast) PO menggunakan Webhook.
-            otomatis.
           </p>
 
+          <div className="flex flex-row items-start space-x-3 space-y-0 rounded-md border border-slate-200 p-4 dark:border-slate-800 bg-white dark:bg-slate-950">
+            <Checkbox
+              id="mattermostNotifEnabled"
+              checked={settings.MATTERMOST_NOTIF_ENABLED === 'true'}
+              onCheckedChange={(checked) => handleChange('MATTERMOST_NOTIF_ENABLED', checked ? 'true' : 'false')}
+            />
+            <div className="space-y-1 leading-none w-full">
+              <Label htmlFor="mattermostNotifEnabled" className="text-sm font-bold">
+                Aktifkan DM Kreator saat Update Pesanan (Menggunakan Bot API)
+              </Label>
+              <p className="text-xs text-slate-500 mb-3">
+                Kirim notifikasi otomatis ke channel/DM kreator PO tiap ada update pesanan. (Membutuhkan Bot Token).
+              </p>
+              
+              {settings.MATTERMOST_NOTIF_ENABLED === 'true' && (
+                <div className="space-y-4 mt-4 pt-4 border-t border-slate-100 dark:border-slate-800">
                   <div className="space-y-1.5">
+                    <Label className="text-[11px] font-bold text-slate-700 uppercase">API URL POST</Label>
+                    <Input
+                      value={settings.MATTERMOST_API_URL}
+                      onChange={(e) => handleChange('MATTERMOST_API_URL', e.target.value)}
+                      className="h-10 rounded-xl"
+                      placeholder="https://mattermost.domain.com/api/v4/posts"
+                    />
+                  </div>
+                  <div className="space-y-1.5">
+                    <Label className="text-[11px] font-bold text-slate-700 uppercase">Bot Bearer Token</Label>
+                    <Input
+                      type="password"
+                      value={settings.MATTERMOST_BOT_TOKEN}
+                      onChange={(e) => handleChange('MATTERMOST_BOT_TOKEN', e.target.value)}
+                      className="h-10 rounded-xl"
+                      placeholder="Masukan Bearer Token"
+                    />
+                  </div>
+                </div>
+              )}
+            </div>
+          </div>
+
+          <div className="space-y-1.5 mt-6 pt-6 border-t border-slate-200 dark:border-slate-800">
+            <h4 className="text-sm font-bold text-slate-800 dark:text-slate-200 mb-3">Broadcast via Incoming Webhook</h4>
             <Label className="text-xs font-bold text-slate-700 uppercase">Webhook URL</Label>
             <Input
               value={settings.MATTERMOST_WEBHOOK_URL}

src/app/actions.ts

@@ -5,6 +5,7 @@ import { revalidatePath } from 'next/cache'
 
 import { hashPassword, verifyPassword, encrypt, decrypt } from '@/lib/auth'
 import { cookies } from 'next/headers'
+import { sendMattermostNotification } from '@/lib/mattermost'
 
 // === AUTHENTICATION ACTIONS ===
 export async function loginUser(username: string, password: string) {
@@ -271,37 +272,6 @@ export async function createOrder(data: {
   }
 }
 
-export async function duplicateOrder(order_id: string) {
-  try {
-    const oldOrder = await prisma.order.findUnique({
-      where: { id: order_id },
-      include: { available_items: true },
-    })
-    if (!oldOrder) return { success: false, error: 'Order tidak ditemukan' }
-
-    const newOrder = await prisma.order.create({
-      data: {
-        title: oldOrder.title + ' (Copy)',
-        description: oldOrder.description,
-        date: new Date(),
-        allow_custom: oldOrder.allow_custom,
-        creator_id: oldOrder.creator_id,
-        status: 'DRAFT',
-        available_items: {
-          create: oldOrder.available_items.map((ai) => ({
-            name: ai.name,
-            is_sold_out: ai.is_sold_out,
-          })),
-        },
-      },
-    })
-    revalidatePath('/my-orders')
-    return { success: true, order: newOrder }
-  } catch (e) {
-    return { success: false, error: 'Gagal menduplikasi order.' }
-  }
-}
-
 export async function updateOrder(
   order_id: string,
   data: {
@@ -440,48 +410,6 @@ export async function updateSubmissionPayment(
   }
 }
 
-export async function updateBulkSubmissionPayment(
-  submission_ids: string[],
-  payment_status: string,
-  use_balance: boolean = false
-) {
-  try {
-    if (payment_status === 'LUNAS') {
-      const submissions = await prisma.submission.findMany({
-        where: { id: { in: submission_ids } },
-      })
-      const ops = submissions.map((sub) =>
-        prisma.submission.update({
-          where: { id: sub.id },
-          data: {
-            payment_status,
-            paid_amount: use_balance
-              ? sub.paid_amount || 0
-              : sub.paid_amount != null
-                ? sub.paid_amount
-                : sub.bill,
-            saldo_used: use_balance ? Math.max(0, (sub.bill || 0) - (sub.paid_amount || 0)) : 0,
-          },
-        })
-      )
-      await prisma.$transaction(ops)
-    } else {
-      await prisma.submission.updateMany({
-        where: { id: { in: submission_ids } },
-        data: { payment_status },
-      })
-    }
-    revalidatePath(`/my-orders`)
-    revalidatePath(`/my-purchases`)
-    revalidatePath(`/reports`)
-    revalidatePath(`/balances`)
-    return { success: true }
-  } catch (e) {
-    console.error(e)
-    return { success: false, error: 'Gagal mengubah status tagihan massal.' }
-  }
-}
-
 export async function processBulkPayment(data: {
   submission_ids: string[]
   cash_amount: number
@@ -490,6 +418,11 @@ export async function processBulkPayment(data: {
   user_id: string
 }) {
   try {
+    const me = await getSessionUser()
+    if (!me || me.id !== data.creator_id) {
+      return { success: false, error: 'Unauthorized' }
+    }
+
     let currentBalance = 0
     if (data.use_balance) {
       const balanceData = await getBalancesAsCreator(data.creator_id)
@@ -499,7 +432,7 @@ export async function processBulkPayment(data: {
 
     const submissions = await prisma.submission.findMany({
       where: { id: { in: data.submission_ids } },
-      include: { order: { select: { date: true } } },
+      include: { order: { select: { date: true, status: true } } },
     })
 
     // Sort by order date ascending (oldest first)
@@ -515,11 +448,31 @@ export async function processBulkPayment(data: {
       const sub = submissions[i]
       const isLast = i === submissions.length - 1
 
+      // Don't process if order isn't CLOSE
+      if (sub.order.status !== 'CLOSE') continue
+
       const subBill = sub.bill || 0
       const prevPaid = sub.paid_amount || 0
-      const amountToCover = Math.max(0, subBill - prevPaid)
+      const prevSaldoUsed = sub.saldo_used || 0
+      const amountToCover = Math.max(0, subBill - prevPaid - prevSaldoUsed)
 
-      if (totalAvailable >= amountToCover && amountToCover > 0) {
+      if (amountToCover === 0) {
+        // It's already fully paid somehow, just mark LUNAS. Give excess cash if last.
+        let finalPaid = prevPaid
+        if (isLast && remainingCash > 0) {
+          finalPaid += remainingCash
+          remainingCash = 0
+        }
+        ops.push(
+          prisma.submission.update({
+            where: { id: sub.id },
+            data: { payment_status: 'LUNAS', paid_amount: finalPaid },
+          })
+        )
+        continue
+      }
+
+      if (totalAvailable >= amountToCover) {
         // Fully covered -> LUNAS
         let balanceToUse = Math.min(remainingBalance, amountToCover)
         remainingBalance -= balanceToUse
@@ -533,44 +486,35 @@ export async function processBulkPayment(data: {
           finalPaid += remainingCash
           remainingCash = 0
         }
+        let finalSaldoUsed = prevSaldoUsed + balanceToUse
 
         ops.push(
           prisma.submission.update({
             where: { id: sub.id },
-            data: { payment_status: 'LUNAS', paid_amount: finalPaid },
+            data: { payment_status: 'LUNAS', paid_amount: finalPaid, saldo_used: finalSaldoUsed },
-          })
-        )
-      } else if (totalAvailable >= amountToCover && amountToCover === 0) {
-        // It's already fully paid somehow, just mark LUNAS. Give excess cash if last.
-        let finalPaid = prevPaid
-        if (isLast && remainingCash > 0) {
-          finalPaid += remainingCash
-          remainingCash = 0
-        }
-        ops.push(
-          prisma.submission.update({
-            where: { id: sub.id },
-            data: { payment_status: 'LUNAS', paid_amount: finalPaid },
           })
         )
       } else if (totalAvailable > 0) {
-        // Partially covered -> BELUM_BAYAR. Only use cash.
+        // Partially covered -> BELUM_BAYAR
-        let finalPaid = prevPaid + remainingCash
+        let balanceToUse = Math.min(remainingBalance, totalAvailable)
-        remainingCash = 0
+        remainingBalance -= balanceToUse
-        totalAvailable = remainingBalance // only balance left, which can't be used
+
+        let cashToUse = totalAvailable - balanceToUse
+        remainingCash -= cashToUse
+
+        let finalPaid = prevPaid + cashToUse
+        let finalSaldoUsed = prevSaldoUsed + balanceToUse
+
+        totalAvailable = 0
 
         ops.push(
           prisma.submission.update({
             where: { id: sub.id },
-            data: { payment_status: 'BELUM_BAYAR', paid_amount: finalPaid },
+            data: {
-          })
+              payment_status: 'BELUM_BAYAR',
-        )
+              paid_amount: finalPaid,
-      } else {
+              saldo_used: finalSaldoUsed,
-        // totalAvailable == 0. No more money. Just leave it as is, or update to BELUM_BAYAR.
+            },
-        ops.push(
-          prisma.submission.update({
-            where: { id: sub.id },
-            data: { payment_status: 'BELUM_BAYAR' },
           })
         )
       }
@@ -664,6 +608,10 @@ export async function submitOrder(data: {
       })
     }
     
+    // Trigger notification without awaiting so it doesn't block
+    notifyCreatorOnSubmission(data.order_id, data.user_id, existing ? 'update' : 'create').catch(console.error)
+
+
     revalidatePath('/')
     revalidatePath('/my-purchases')
     revalidatePath(`/my-orders/${data.order_id}`)
@@ -718,14 +666,16 @@ export async function getCreatorReport(creator_id: string, startDate?: Date, end
 
 // === BALANCE ACTIONS ===
 export async function getBalancesAsCreator(creator_id: string) {
-  const submissions = await prisma.submission.findMany({
+  const [submissions, withdrawals] = await Promise.all([
-    where: {
+    prisma.submission.findMany({
-      order: { creator_id },
+      where: { order: { creator_id } },
-    },
+      include: { user: { select: { id: true, name: true, photo: true } } },
-    include: {
+    }),
-      user: { select: { id: true, name: true, photo: true } },
+    prisma.balanceWithdrawal.findMany({
-    },
+      where: { creator_id },
-  })
+      include: { user: { select: { id: true, name: true, photo: true } } },
+    }),
+  ])
 
   const balanceMap = new Map<string, { user: any; amount: number }>()
 
@@ -748,14 +698,22 @@ export async function getBalancesAsCreator(creator_id: string) {
     }
   })
 
+  // Kurangi saldo dengan total withdrawal yang sudah dilakukan
+  withdrawals.forEach((w) => {
+    if (!balanceMap.has(w.user_id)) {
+      balanceMap.set(w.user_id, { user: w.user, amount: -w.amount })
+    } else {
+      balanceMap.get(w.user_id)!.amount -= w.amount
+    }
+  })
+
   return Array.from(balanceMap.values()).filter((b) => b.amount !== 0)
 }
 
 export async function getBalancesAsSubmittor(user_id: string) {
-  const submissions = await prisma.submission.findMany({
+  const [submissions, withdrawals] = await Promise.all([
-    where: {
+    prisma.submission.findMany({
-      user_id,
+      where: { user_id },
-    },
       include: {
         order: {
           include: {
@@ -763,7 +721,12 @@ export async function getBalancesAsSubmittor(user_id: string) {
           },
         },
       },
-  })
+    }),
+    prisma.balanceWithdrawal.findMany({
+      where: { user_id },
+      include: { creator: { select: { id: true, name: true, photo: true } } },
+    }),
+  ])
 
   const balanceMap = new Map<string, { creator: any; amount: number }>()
 
@@ -787,9 +750,99 @@ export async function getBalancesAsSubmittor(user_id: string) {
     }
   })
 
+  // Kurangi saldo dengan total withdrawal yang dilakukan kreator
+  withdrawals.forEach((w) => {
+    if (!balanceMap.has(w.creator_id)) {
+      balanceMap.set(w.creator_id, { creator: w.creator, amount: -w.amount })
+    } else {
+      balanceMap.get(w.creator_id)!.amount -= w.amount
+    }
+  })
+
   return Array.from(balanceMap.values()).filter((b) => b.amount !== 0)
 }
 
+// === WITHDRAWAL ACTIONS ===
+export async function createWithdrawal(data: {
+  creator_id: string
+  user_id: string
+  amount: number
+  note?: string
+}) {
+  try {
+    const me = await getSessionUser()
+    if (!me || me.id !== data.creator_id) {
+      return { success: false, error: 'Unauthorized' }
+    }
+    if (!data.amount || data.amount <= 0) {
+      return { success: false, error: 'Nominal harus lebih dari 0' }
+    }
+
+    // Hitung saldo tersedia saat ini untuk user ini
+    const balances = await getBalancesAsCreator(data.creator_id)
+    const userBalance = balances.find((b) => b.user.id === data.user_id)
+    const available = userBalance ? userBalance.amount : 0
+
+    if (data.amount > available) {
+      return {
+        success: false,
+        error: `Nominal melebihi saldo tersedia (${new Intl.NumberFormat('id-ID', { style: 'currency', currency: 'IDR', maximumFractionDigits: 0 }).format(available)})`,
+      }
+    }
+
+    await prisma.balanceWithdrawal.create({
+      data: {
+        creator_id: data.creator_id,
+        user_id: data.user_id,
+        amount: data.amount,
+        note: data.note || null,
+      },
+    })
+
+    revalidatePath('/balances')
+    revalidatePath('/my-orders')
+    revalidatePath('/reports')
+    return { success: true }
+  } catch (e) {
+    console.error(e)
+    return { success: false, error: 'Gagal mencatat penarikan saldo.' }
+  }
+}
+
+export async function getWithdrawalHistory(creator_id: string, user_id?: string) {
+  return await prisma.balanceWithdrawal.findMany({
+    where: {
+      creator_id,
+      ...(user_id ? { user_id } : {}),
+    },
+    include: {
+      user: { select: { id: true, name: true, photo: true } },
+    },
+    orderBy: { created_at: 'desc' },
+  })
+}
+
+export async function deleteWithdrawal(id: string) {
+  try {
+    const me = await getSessionUser()
+    const record = await prisma.balanceWithdrawal.findUnique({ where: { id } })
+    if (!record) return { success: false, error: 'Data tidak ditemukan' }
+    if (!me || me.id !== record.creator_id) {
+      return { success: false, error: 'Unauthorized' }
+    }
+
+    await prisma.balanceWithdrawal.delete({ where: { id } })
+
+    revalidatePath('/balances')
+    revalidatePath('/my-orders')
+    revalidatePath('/reports')
+    return { success: true }
+  } catch (e) {
+    console.error(e)
+    return { success: false, error: 'Gagal menghapus riwayat penarikan.' }
+  }
+}
+
 export async function deleteSubmission(submission_id: string, user_id: string) {
   try {
     const submission = await prisma.submission.findUnique({
@@ -805,6 +858,10 @@ export async function deleteSubmission(submission_id: string, user_id: string) {
     await prisma.submission.delete({
       where: { id: submission_id },
     })
+
+    // Trigger notification
+    notifyCreatorOnSubmission(submission.order_id, user_id, 'delete').catch(console.error)
+
     return { success: true }
   } catch (error) {
     return { success: false, error: 'Gagal membatalkan pesanan' }
@@ -873,3 +930,166 @@ export async function broadcastToMattermost(orderId: string, orderUrl: string) {
     return { success: false, error: 'Gagal mengirim ke Mattermost' }
   }
 }
+
+export async function getPiutangSummary(creator_id: string) {
+  const unpaidSubmissions = await prisma.submission.findMany({
+    where: {
+      order: {
+        creator_id,
+        status: 'CLOSE',
+      },
+      payment_status: 'BELUM_BAYAR',
+    },
+    include: {
+      user: {
+        select: { id: true, name: true, photo: true },
+      },
+      order: {
+        select: { id: true, title: true, date: true },
+      },
+    },
+    orderBy: {
+      order: { date: 'asc' },
+    },
+  })
+
+  const grouped = new Map<string, any>()
+
+  unpaidSubmissions.forEach((sub) => {
+    if (!grouped.has(sub.user_id)) {
+      grouped.set(sub.user_id, {
+        user: sub.user,
+        totalPiutang: 0,
+        submissions: [],
+      })
+    }
+
+    const u = grouped.get(sub.user_id)
+
+    const paidAmount = (sub.paid_amount || 0) + (sub.saldo_used || 0)
+    const unpaid = Math.max(0, (sub.bill || 0) - paidAmount)
+
+    if (unpaid > 0) {
+      u.totalPiutang += unpaid
+      u.submissions.push({
+        ...sub,
+        unpaidAmount: unpaid,
+      })
+    }
+  })
+
+  return Array.from(grouped.values()).filter((g) => g.totalPiutang > 0)
+}
+
+// === SETTINGS ACTIONS ===
+export async function getSystemSettings() {
+  try {
+    const settings = await prisma.setting.findMany()
+    const config: Record<string, string> = {}
+    settings.forEach((s: any) => { config[s.key] = s.value })
+    return { success: true, config }
+  } catch (e: any) {
+    return { success: false, error: e.message }
+  }
+}
+
+export async function updateSystemSettings(key: string, value: string) {
+  try {
+    await prisma.setting.upsert({
+      where: { key },
+      update: { value },
+      create: { key, value }
+    })
+    return { success: true }
+  } catch (e: any) {
+    return { success: false, error: e.message }
+  }
+}
+
+// === USER NOTIFICATION CONFIG ACTIONS ===
+export async function getUserNotificationConfig(userId: string) {
+  try {
+    const config = await prisma.userNotificationConfig.findUnique({
+      where: { user_id: userId }
+    })
+    return { success: true, config }
+  } catch (e: any) {
+    return { success: false, error: e.message }
+  }
+}
+
+export async function updateUserNotificationConfig(userId: string, data: { mattermost_channel_id?: string, is_active?: boolean }) {
+  try {
+    const config = await prisma.userNotificationConfig.upsert({
+      where: { user_id: userId },
+      update: data,
+      create: { user_id: userId, ...data }
+    })
+    return { success: true, config }
+  } catch (e: any) {
+    return { success: false, error: e.message }
+  }
+}
+
+export async function notifyCreatorOnSubmission(orderId: string, submittorId: string, actionType: 'create' | 'update' | 'delete' = 'update') {
+  try {
+    const settings = await getSettings()
+    if (!settings || settings.MATTERMOST_NOTIF_ENABLED !== 'true') return
+
+    const order = await prisma.order.findUnique({
+      where: { id: orderId },
+      include: {
+        creator: {
+          include: { notification_config: true }
+        },
+        submissions: {
+          include: { user: true, items: true }
+        }
+      }
+    })
+
+    if (!order) return
+    const config = order.creator.notification_config
+    if (!config?.is_active || !config?.mattermost_channel_id) return
+
+    const submittor = await prisma.user.findUnique({ where: { id: submittorId } })
+    if (!submittor) return
+
+    const actionText = actionType === 'delete' ? 'membatalkan pesanan' : actionType === 'create' ? 'menambahkan pesanan baru' : 'merubah pesanan'
+    const headerMessage = `Ada yang ${actionText} dari **${submittor.name}** di PO **${order.title}**!`
+    
+    let summaryByPerson = `**Rekap per Orang:**\n\`\`\`text\n${order.title}\n`
+    const itemCounts: Record<string, number> = {}
+
+    order.submissions?.forEach((sub: any) => {
+      const itemStrings = sub.items.map(
+        (i: any) => `${i.name} ${i.qty}x${i.note ? ` (${i.note})` : ''}`
+      )
+      summaryByPerson += `- ${sub.user?.name || 'Unknown'} : ${itemStrings.join(', ')}\n`
+
+      sub.items.forEach((i: any) => {
+        const key = i.note ? `${i.name} (${i.note})` : i.name
+        itemCounts[key] = (itemCounts[key] || 0) + i.qty
+      })
+    })
+    summaryByPerson += `\`\`\``
+
+    let summaryByItem = `**Rekap per Item (Akumulasi):**\n\`\`\`text\n${order.title}\n`
+    Object.entries(itemCounts).forEach(([name, qty]) => {
+      summaryByItem += `- ${name} : ${qty} pcs\n`
+    })
+    summaryByItem += `\`\`\``
+
+    const finalMessage = `${headerMessage}\n\n${summaryByPerson}\n\n${summaryByItem}`
+
+    await sendMattermostNotification(
+      config.mattermost_channel_id, 
+      finalMessage,
+      settings.MATTERMOST_BOT_TOKEN,
+      settings.MATTERMOST_API_URL
+    )
+
+  } catch (error) {
+    console.error('Failed to notify creator:', error)
+  }
+}

src/components/PiutangManager.tsx

@@ -0,0 +1,366 @@
+'use client'
+
+import React, { useState, useEffect } from 'react'
+import { format } from 'date-fns'
+import { getPiutangSummary, processBulkPayment, getBalancesAsCreator } from '@/app/actions'
+import { Card, CardContent } from '@/components/ui/card'
+import { Button } from '@/components/ui/button'
+import { CheckCircle2, Package, Search, ChevronDown, ChevronUp, Users, Loader2 } from 'lucide-react'
+import {
+  Dialog,
+  DialogContent,
+  DialogHeader,
+  DialogTitle,
+  DialogFooter,
+  DialogDescription,
+} from '@/components/ui/dialog'
+import { cn } from '@/lib/utils'
+
+const formatRupiah = (value: number) =>
+  new Intl.NumberFormat('id-ID', {
+    style: 'currency',
+    currency: 'IDR',
+    maximumFractionDigits: 0,
+  }).format(value)
+
+export default function PiutangManager({ creatorId }: { creatorId: string }) {
+  const [data, setData] = useState<any[]>([])
+  const [balancesData, setBalancesData] = useState<any[]>([])
+  const [loading, setLoading] = useState(true)
+  const [searchQuery, setSearchQuery] = useState('')
+  const [expandedRows, setExpandedRows] = useState<Record<string, boolean>>({})
+  const [modalOpen, setModalOpen] = useState(false)
+  const [saving, setSaving] = useState(false)
+
+  const [target, setTarget] = useState<{
+    ids: string[]
+    label: string
+    amount: number
+    userId: string
+  }>({ ids: [], label: '', amount: 0, userId: '' })
+  const [cashInput, setCashInput] = useState<string>('')
+
+  const loadData = async () => {
+    setLoading(true)
+    const [piutang, balances] = await Promise.all([
+      getPiutangSummary(creatorId),
+      getBalancesAsCreator(creatorId),
+    ])
+    setData(piutang)
+    setBalancesData(balances)
+    setLoading(false)
+  }
+
+  useEffect(() => {
+    loadData()
+  }, [creatorId])
+
+  const toggleRow = (userId: string) => {
+    setExpandedRows((prev) => ({ ...prev, [userId]: !prev[userId] }))
+  }
+
+  const openModal = (
+    e: React.MouseEvent,
+    ids: string[],
+    label: string,
+    amount: number,
+    userId: string
+  ) => {
+    e.stopPropagation()
+    setTarget({ ids, label, amount, userId })
+    setCashInput('')
+    setModalOpen(true)
+  }
+
+  const handleConfirm = async () => {
+    if (!target.ids.length) return
+    setSaving(true)
+    const cash = Number(cashInput.replace(/\D/g, '')) || 0
+    const res = await processBulkPayment({
+      submission_ids: target.ids,
+      cash_amount: cash,
+      use_balance: true,
+      creator_id: creatorId,
+      user_id: target.userId,
+    })
+    setSaving(false)
+    if (res.success) {
+      setModalOpen(false)
+      loadData()
+    } else {
+      alert(res.error || 'Terjadi kesalahan')
+    }
+  }
+
+  const filteredData = data.filter((u) =>
+    u.user.name.toLowerCase().includes(searchQuery.toLowerCase())
+  )
+
+  const targetUserBalance = balancesData.find((b) => b.user.id === target.userId)?.amount || 0
+
+  if (loading) {
+    return (
+      <div className="flex min-h-[30vh] flex-col items-center justify-center gap-3">
+        <Loader2 className="h-8 w-8 animate-spin text-[#1B2CC1]" />
+        <span className="text-xs font-semibold text-slate-500">Memuat data piutang...</span>
+      </div>
+    )
+  }
+
+  return (
+    <div className="space-y-4">
+      <div className="flex items-center gap-2 rounded-xl border border-slate-200/80 bg-white px-3 py-2 shadow-sm dark:border-slate-800 dark:bg-slate-900">
+        <Search className="h-4 w-4 text-slate-400" />
+        <input
+          type="text"
+          placeholder="Cari nama penitip..."
+          value={searchQuery}
+          onChange={(e) => setSearchQuery(e.target.value)}
+          className="flex-1 bg-transparent text-sm outline-none placeholder:text-slate-400 dark:text-white"
+        />
+      </div>
+
+      {filteredData.length === 0 ? (
+        <div className="rounded-3xl border-2 border-dashed border-slate-200 bg-white p-12 text-center shadow-sm dark:border-slate-800 dark:bg-slate-900">
+          <p className="text-sm font-medium text-slate-500">
+            {searchQuery
+              ? 'Tidak ada penitip yang cocok dengan pencarian.'
+              : 'Tidak ada penitip yang memiliki hutang pada PO yang sudah CLOSE.'}
+          </p>
+        </div>
+      ) : (
+        <Card className="overflow-hidden border-slate-200/80 shadow-sm dark:border-slate-800">
+          <div className="overflow-x-auto">
+            <table className="w-full text-left text-sm">
+              <thead className="bg-slate-50 text-xs font-bold tracking-wider text-slate-500 uppercase dark:bg-slate-800/50">
+                <tr>
+                  <th className="px-6 py-4">Penitip</th>
+                  <th className="px-6 py-4 text-right">Total Piutang</th>
+                  <th className="px-6 py-4 text-center">Aksi</th>
+                </tr>
+              </thead>
+              <tbody className="divide-y divide-slate-100 dark:divide-slate-800/60">
+                {filteredData.map((userObj) => {
+                  const isExpanded = !!expandedRows[userObj.user.id]
+                  return (
+                    <React.Fragment key={userObj.user.id}>
+                      <tr
+                        onClick={() => toggleRow(userObj.user.id)}
+                        className="group cursor-pointer bg-white transition-colors hover:bg-slate-50/70 dark:bg-slate-900 dark:hover:bg-slate-800/50"
+                      >
+                        <td className="px-6 py-4">
+                          <div className="flex items-center gap-3">
+                            {userObj.user.photo ? (
+                              <img
+                                src={userObj.user.photo}
+                                alt={userObj.user.name}
+                                className="h-10 w-10 rounded-full object-cover shadow-sm ring-2 ring-white dark:ring-slate-800"
+                              />
+                            ) : (
+                              <div className="flex h-10 w-10 items-center justify-center rounded-full bg-slate-100 font-bold text-slate-600 shadow-sm ring-2 ring-white dark:bg-slate-800 dark:text-slate-300 dark:ring-slate-900">
+                                {userObj.user.name.charAt(0).toUpperCase()}
+                              </div>
+                            )}
+                            <div className="flex flex-col">
+                              <span className="font-bold text-slate-900 dark:text-slate-100">
+                                {userObj.user.name}
+                              </span>
+                              <span className="text-[10px] font-semibold text-slate-400 uppercase">
+                                {userObj.submissions.length} Pesanan Belum Lunas
+                              </span>
+                            </div>
+                            <div className="ml-auto text-slate-400 transition-colors group-hover:text-[#1B2CC1]">
+                              {isExpanded ? (
+                                <ChevronUp className="h-4 w-4" />
+                              ) : (
+                                <ChevronDown className="h-4 w-4" />
+                              )}
+                            </div>
+                          </div>
+                        </td>
+                        <td className="px-6 py-4 text-right">
+                          <span className="text-base font-black text-rose-600 dark:text-rose-400">
+                            {formatRupiah(userObj.totalPiutang)}
+                          </span>
+                        </td>
+                        <td className="px-6 py-4 text-center">
+                          <Button
+                            onClick={(e) =>
+                              openModal(
+                                e,
+                                userObj.submissions.map((s: any) => s.id),
+                                `Semua tagihan ${userObj.user.name}`,
+                                userObj.totalPiutang,
+                                userObj.user.id
+                              )
+                            }
+                            size="sm"
+                            className="h-8 gap-1 bg-[#1B2CC1] px-3 text-[11px] font-bold text-white shadow-sm shadow-[#1B2CC1]/30 hover:bg-[#121E85]"
+                          >
+                            <CheckCircle2 className="h-3.5 w-3.5" /> Pelunasan
+                          </Button>
+                        </td>
+                      </tr>
+
+                      {isExpanded && (
+                        <tr className="bg-slate-50 dark:bg-slate-900/60">
+                          <td colSpan={3} className="border-l-4 border-l-[#1B2CC1] px-6 py-5">
+                            <div className="space-y-3 pl-8">
+                              <h4 className="flex items-center gap-1.5 text-[11px] font-bold tracking-wider text-slate-500 uppercase">
+                                <Package className="h-3.5 w-3.5" /> Rincian Piutang per PO
+                              </h4>
+                              <div className="grid gap-2 sm:grid-cols-2">
+                                {userObj.submissions.map((sub: any) => (
+                                  <div
+                                    key={sub.id}
+                                    className="flex items-center justify-between rounded-xl border border-slate-200/60 bg-white p-3 shadow-sm dark:border-slate-700/50 dark:bg-slate-800"
+                                  >
+                                    <div className="flex flex-col">
+                                      <span className="line-clamp-1 text-xs font-bold text-slate-800 dark:text-slate-200">
+                                        {sub.order.title}
+                                      </span>
+                                      <span className="text-[10px] text-slate-400">
+                                        PO: {format(new Date(sub.order.date), 'dd MMM yyyy')}
+                                      </span>
+                                    </div>
+                                    <div className="text-right">
+                                      <span className="text-sm font-bold text-rose-600 dark:text-rose-400">
+                                        {formatRupiah(sub.unpaidAmount)}
+                                      </span>
+                                    </div>
+                                  </div>
+                                ))}
+                              </div>
+                            </div>
+                          </td>
+                        </tr>
+                      )}
+                    </React.Fragment>
+                  )
+                })}
+              </tbody>
+            </table>
+          </div>
+        </Card>
+      )}
+
+      {/* Modal Konfirmasi Pelunasan */}
+      <Dialog open={modalOpen} onOpenChange={setModalOpen}>
+        <DialogContent className="overflow-hidden rounded-3xl border-0 p-0 shadow-2xl sm:max-w-[400px]">
+          <div className="bg-gradient-to-br from-[#1B2CC1] to-[#0A1259] px-6 pt-8 pb-12 text-center text-white">
+            <div className="mx-auto flex h-16 w-16 items-center justify-center rounded-full bg-white/10 ring-4 ring-white/5 backdrop-blur-md">
+              <CheckCircle2 className="h-8 w-8 text-white" />
+            </div>
+            <DialogTitle className="mt-5 text-2xl font-black tracking-tight text-white">
+              Pelunasan Tagihan
+            </DialogTitle>
+            <DialogDescription className="mt-1.5 text-blue-100/80">
+              Terima uang dari <strong>{target.label.replace('Semua tagihan ', '')}</strong>
+            </DialogDescription>
+          </div>
+
+          <div className="relative z-10 -mt-10 space-y-6 rounded-t-3xl bg-white px-6 pt-6 pb-6 shadow-[-0_-10px_40px_rgba(0,0,0,0.1)] dark:bg-slate-950">
+            <div className="rounded-2xl border border-rose-100 bg-rose-50 p-5 text-center shadow-inner dark:border-rose-900/30 dark:bg-rose-950/40">
+              <span className="text-[10px] font-bold tracking-widest text-rose-400 uppercase">
+                Total Tagihan Saat Ini
+              </span>
+              <p className="mt-1 text-4xl font-black tracking-tight text-rose-600 dark:text-rose-500">
+                {formatRupiah(target.amount)}
+              </p>
+            </div>
+
+            <div className="space-y-3">
+              <label className="text-xs font-bold tracking-wider text-slate-500 uppercase dark:text-slate-400">
+                Uang Tunai Diterima
+              </label>
+              <div className="relative">
+                <span className="absolute top-3.5 left-4 text-sm font-bold text-slate-400">Rp</span>
+                <input
+                  type="text"
+                  value={cashInput}
+                  onChange={(e) => {
+                    const val = e.target.value.replace(/\D/g, '')
+                    setCashInput(val ? new Intl.NumberFormat('id-ID').format(Number(val)) : '')
+                  }}
+                  placeholder="0"
+                  className="h-14 w-full rounded-2xl border border-slate-200 bg-white pr-4 pl-11 text-xl font-black tracking-wide text-slate-900 shadow-sm transition-all focus:border-[#1B2CC1] focus:ring-4 focus:ring-[#1B2CC1]/10 focus:outline-none dark:border-slate-800 dark:bg-slate-900 dark:text-white"
+                />
+              </div>
+
+              {targetUserBalance > 0 && (
+                <div className="flex items-center justify-between rounded-xl border border-emerald-100 bg-emerald-50/50 px-4 py-3 dark:border-emerald-900/30 dark:bg-emerald-900/20">
+                  <span className="text-xs font-bold text-emerald-700 dark:text-emerald-400">
+                    + Pakai Saldo Penitip
+                  </span>
+                  <span className="text-sm font-black text-emerald-600 dark:text-emerald-500">
+                    {formatRupiah(targetUserBalance)}
+                  </span>
+                </div>
+              )}
+            </div>
+
+            {(() => {
+              const totalBayar = (Number(cashInput.replace(/\D/g, '')) || 0) + targetUserBalance
+              const kurang = target.amount - totalBayar
+
+              if (totalBayar === 0) return null
+
+              return (
+                <div className="overflow-hidden rounded-2xl border border-slate-200 bg-white shadow-sm dark:border-slate-800 dark:bg-slate-900">
+                  <div className="border-b border-slate-100 bg-slate-50 px-4 py-2.5 dark:border-slate-700/50 dark:bg-slate-800/50">
+                    <p className="text-[10px] font-bold tracking-wider text-slate-500 uppercase">
+                      Kalkulasi Akhir
+                    </p>
+                  </div>
+                  <div className="p-4">
+                    {kurang > 0 ? (
+                      <div className="flex items-center justify-between">
+                        <span className="text-sm font-bold text-rose-500">Sisa Hutang Nanti:</span>
+                        <span className="text-lg font-black text-rose-600">
+                          {formatRupiah(kurang)}
+                        </span>
+                      </div>
+                    ) : kurang < 0 ? (
+                      <div className="flex items-center justify-between">
+                        <span className="text-sm font-bold text-emerald-600">
+                          Kelebihan (Jadi Saldo):
+                        </span>
+                        <span className="text-lg font-black text-emerald-500">
+                          {formatRupiah(Math.abs(kurang))}
+                        </span>
+                      </div>
+                    ) : (
+                      <div className="flex items-center justify-center gap-2 py-1 font-black text-emerald-600">
+                        <CheckCircle2 className="h-5 w-5" /> LUNAS SEMPURNA
+                      </div>
+                    )}
+                  </div>
+                </div>
+              )
+            })()}
+          </div>
+
+          <div className="flex flex-row gap-3 px-6 pt-2 pb-6">
+            <Button
+              variant="outline"
+              onClick={() => setModalOpen(false)}
+              className="h-12 flex-1 rounded-2xl border-slate-200 font-bold hover:bg-slate-100 dark:border-slate-700"
+              disabled={saving}
+            >
+              Batal
+            </Button>
+            <Button
+              onClick={handleConfirm}
+              disabled={
+                saving || (Number(cashInput.replace(/\D/g, '')) || 0) + targetUserBalance <= 0
+              }
+              className="h-12 flex-1 rounded-2xl bg-[#1B2CC1] font-bold text-white shadow-lg shadow-[#1B2CC1]/30 hover:bg-[#121E85] disabled:opacity-50"
+            >
+              {saving ? 'Memproses...' : 'Proses Pelunasan'}
+            </Button>
+          </div>
+        </DialogContent>
+      </Dialog>
+    </div>
+  )
+}

src/lib/mattermost.ts

@@ -0,0 +1,77 @@
+export async function sendMattermostNotification(targetIdentifier: string, message: string, botToken?: string, apiUrl?: string) {
+  try {
+    const token = botToken || process.env.MATTERMOST_BOT_TOKEN || '5zubexudb38uuradfa36qy98ca'
+    // Ensure we get the base URL by stripping '/posts' if it exists in the configured URL
+    let baseUrl = apiUrl || process.env.MATTERMOST_API_URL || 'https://mattermost.eigen.co.id/api/v4/posts'
+    if (baseUrl.endsWith('/posts')) {
+      baseUrl = baseUrl.replace('/posts', '')
+    }
+
+    const headers = {
+      'Content-Type': 'application/json',
+      Authorization: `Bearer ${token}`,
+    }
+
+    let finalChannelId = targetIdentifier
+    let targetUserId = targetIdentifier
+
+    // 1. If it's a username (starts with @ or doesn't look like a 26-char ID), look up the User ID
+    if (targetIdentifier.startsWith('@') || targetIdentifier.length !== 26) {
+      const username = targetIdentifier.replace('@', '').trim()
+      const userRes = await fetch(`${baseUrl}/users/usernames`, {
+        method: 'POST',
+        headers,
+        body: JSON.stringify([username]),
+      })
+      if (userRes.ok) {
+        const users = await userRes.json()
+        if (users && users.length > 0) {
+          targetUserId = users[0].id
+        }
+      }
+    }
+
+    // 2. Try to create a DM channel if we have a valid 26-char User ID
+    if (targetUserId.length === 26) {
+      // Fetch Bot's own User ID
+      const meRes = await fetch(`${baseUrl}/users/me`, { headers })
+      if (meRes.ok) {
+        const me = await meRes.json()
+        const botId = me.id
+
+        // Create Direct Message channel between Bot and Target User
+        const dmRes = await fetch(`${baseUrl}/channels/direct`, {
+          method: 'POST',
+          headers,
+          body: JSON.stringify([botId, targetUserId]),
+        })
+        if (dmRes.ok) {
+          const dmChannel = await dmRes.json()
+          finalChannelId = dmChannel.id
+        }
+      }
+    }
+
+    // 3. Post the message to the final resolved channel ID
+    const res = await fetch(`${baseUrl}/posts`, {
+      method: 'POST',
+      headers,
+      body: JSON.stringify({
+        channel_id: finalChannelId,
+        message,
+      }),
+    })
+
+    if (!res.ok) {
+      const errorText = await res.text()
+      console.error(`[Mattermost Error] Failed to send message to ${targetIdentifier}:`, errorText)
+      return { success: false, error: errorText }
+    }
+
+    return { success: true }
+  } catch (error: any) {
+    console.error(`[Mattermost Exception] Failed to send message to ${targetIdentifier}:`, error.message)
+    return { success: false, error: error.message }
+  }
+}
+