Add replenishment needs view

src/App.tsx

@@ -7,6 +7,7 @@ import { isAuthenticated, isSuperAdmin } from './dataService';
 const Dashboard = React.lazy(() => import('./pages/Dashboard'));
 const Products = React.lazy(() => import('./pages/Products'));
 const ProductDetails = React.lazy(() => import('./pages/ProductDetails'));
+const Replenishment = React.lazy(() => import('./pages/Replenishment'));
 const ProductionOrders = React.lazy(() => import('./pages/ProductionOrders'));
 const Clients = React.lazy(() => import('./pages/Clients'));
 const ClientDetails = React.lazy(() => import('./pages/ClientDetails'));
@@ -46,6 +47,7 @@ function App() {
           <Route path="graph" element={<Dashboard />} />
           <Route path="products" element={<Products />} />
           <Route path="products/:id" element={<ProductDetails />} />
+          <Route path="replenishment" element={<Replenishment />} />
           <Route path="stock" element={<Navigate to="/products" replace />} />
           <Route path="stock-alerts" element={<Navigate to="/products" replace />} />
           <Route path="production-orders" element={<ProductionOrders />} />

src/components/Layout.tsx

@@ -1,6 +1,6 @@
 import { useState, useEffect } from 'react';
 import { Outlet, Link, useLocation } from 'react-router-dom';
-import { LayoutDashboard, Users, BarChart3, ChevronLeft, ChevronRight, Package, LogOut, Megaphone, Grid3X3, Shield, Moon, Sun, ClipboardList } from 'lucide-react';
+import { LayoutDashboard, Users, BarChart3, ChevronLeft, ChevronRight, Package, LogOut, Megaphone, Grid3X3, Shield, Moon, Sun, ClipboardList, PackagePlus } from 'lucide-react';
 import type { DateRange, OrderData } from '../types';
 import { isSuperAdmin, logout } from '../dataService';
 import { rangeForLastDays } from '../dateRanges';
@@ -62,6 +62,7 @@ const Layout = () => {
   const appNavigation = [
     { name: 'Dashboard', href: '/graph', icon: LayoutDashboard },
     { name: 'Produtos', href: '/products', icon: Package },
+    { name: 'Reposição', href: '/replenishment', icon: PackagePlus },
     { name: 'Ordens de Produção', href: '/production-orders', icon: ClipboardList },
     { name: 'Clientes', href: '/clients', icon: Users },
     { name: 'RFV', href: '/rfm', icon: Grid3X3 },

src/pages/Replenishment.tsx

@@ -0,0 +1,464 @@
+import { useEffect, useMemo, useState } from 'react';
+import { Link, useOutletContext } from 'react-router-dom';
+import { AlertTriangle, CheckCircle2, Download, Package, Search, TrendingUp } from 'lucide-react';
+import DateRangePicker from '../components/DateRangePicker';
+import PaginationControls from '../components/PaginationControls';
+import RefreshStatus from '../components/RefreshStatus';
+import type { DateRange, ProductAnalyticsItem } from '../types';
+import { exportToCSV, fetchProductAnalytics } from '../dataService';
+
+type ReplenishmentStatus = 'need' | 'covered' | 'no_sales' | 'no_stock';
+type ReplenishmentFilter = 'all' | ReplenishmentStatus;
+type ReplenishmentSort = 'need_desc' | 'need_asc' | 'demand_desc' | 'stock_asc' | 'coverage_asc' | 'sold_desc' | 'name_asc';
+
+type ReplenishmentRow = ProductAnalyticsItem & {
+  dailySales: number;
+  projectedDemand: number;
+  suggestedQuantity: number;
+  daysOfCover: number | null;
+  status: ReplenishmentStatus;
+  statusLabel: string;
+};
+
+const horizonOptions = [7, 15, 30, 60];
+
+const statusStyles: Record<ReplenishmentStatus, { label: string; className: string; dotClass: string }> = {
+  need: {
+    label: 'Repor',
+    className: 'border-red-400/35 bg-red-400/10 text-red-300',
+    dotClass: 'bg-red-400'
+  },
+  no_stock: {
+    label: 'Sem estoque',
+    className: 'border-zinc-500/30 bg-zinc-500/10 text-zinc-300',
+    dotClass: 'bg-zinc-400'
+  },
+  covered: {
+    label: 'Coberto',
+    className: 'border-emerald-400/35 bg-emerald-400/10 text-emerald-300',
+    dotClass: 'bg-emerald-400'
+  },
+  no_sales: {
+    label: 'Sem venda',
+    className: 'border-dark-border bg-dark-input text-dark-muted',
+    dotClass: 'bg-dark-muted'
+  }
+};
+
+const filterOptions: Array<{ value: ReplenishmentFilter; label: string }> = [
+  { value: 'need', label: 'Com necessidade' },
+  { value: 'all', label: 'Todos' },
+  { value: 'no_stock', label: 'Sem estoque' },
+  { value: 'covered', label: 'Cobertos' },
+  { value: 'no_sales', label: 'Sem venda' }
+];
+
+const formatNumber = (value: number, maximumFractionDigits = 0) => (
+  new Intl.NumberFormat('pt-BR', { maximumFractionDigits }).format(value)
+);
+
+const formatDays = (value: number | null) => {
+  if (value === null) return '-';
+  if (value > 999) return '999+ dias';
+  return `${formatNumber(value, value < 10 ? 1 : 0)} dias`;
+};
+
+const getRangeDays = (range: DateRange) => {
+  const start = new Date(range.start);
+  const end = new Date(range.end);
+  start.setHours(0, 0, 0, 0);
+  end.setHours(0, 0, 0, 0);
+  return Math.max(1, Math.round((end.getTime() - start.getTime()) / 86_400_000) + 1);
+};
+
+const ReplenishmentSkeleton = () => (
+  <div className="bg-white dark:bg-dark-card border border-zinc-200 dark:border-dark-border rounded-2xl overflow-hidden shadow-sm" aria-label="Carregando necessidade de reposicao">
+    <div className="border-b border-zinc-100 p-4 dark:border-dark-border">
+      <div className="grid grid-cols-[120px_1.5fr_120px_130px_120px_130px_130px_110px] gap-6">
+        {[0, 1, 2, 3, 4, 5, 6, 7].map(item => (
+          <div key={`replenishment-head-skeleton-${item}`} className="skeleton h-3" />
+        ))}
+      </div>
+    </div>
+    <div className="divide-y divide-zinc-100 dark:divide-dark-border">
+      {[0, 1, 2, 3, 4, 5, 6, 7].map(row => (
+        <div key={`replenishment-row-skeleton-${row}`} className="grid grid-cols-[120px_1.5fr_120px_130px_120px_130px_130px_110px] gap-6 px-6 py-4">
+          <div className="skeleton h-4" />
+          <div>
+            <div className="skeleton h-4 w-4/5" />
+            <div className="skeleton mt-2 h-3 w-32" />
+          </div>
+          <div className="skeleton h-6 rounded-full" />
+          <div className="skeleton h-4" />
+          <div className="skeleton h-4" />
+          <div className="skeleton h-4" />
+          <div className="skeleton h-4" />
+          <div className="skeleton h-7 rounded-lg" />
+        </div>
+      ))}
+    </div>
+  </div>
+);
+
+const Replenishment = () => {
+  const { dateRange, setDateRange } = useOutletContext<{
+    dateRange: DateRange,
+    setDateRange: (range: DateRange) => void
+  }>();
+  const [products, setProducts] = useState<ProductAnalyticsItem[]>([]);
+  const [isLoading, setIsLoading] = useState(true);
+  const [searchTerm, setSearchTerm] = useState('');
+  const [horizonDays, setHorizonDays] = useState(30);
+  const [statusFilter, setStatusFilter] = useState<ReplenishmentFilter>('need');
+  const [sortBy, setSortBy] = useState<ReplenishmentSort>('need_desc');
+  const [currentPage, setCurrentPage] = useState(1);
+  const [itemsPerPage, setItemsPerPage] = useState(10);
+
+  useEffect(() => {
+    let isMounted = true;
+
+    const loadProducts = async () => {
+      setIsLoading(true);
+      const data = await fetchProductAnalytics(dateRange);
+
+      if (isMounted) {
+        setProducts(data);
+        setIsLoading(false);
+      }
+    };
+
+    void loadProducts();
+
+    return () => {
+      isMounted = false;
+    };
+  }, [dateRange]);
+
+  const allRows = useMemo<ReplenishmentRow[]>(() => {
+    const rangeDays = getRangeDays(dateRange);
+
+    return products.map(product => {
+      const dailySales = product.quantitySold / rangeDays;
+      const projectedDemand = dailySales * horizonDays;
+      const rawNeed = projectedDemand - product.stock;
+      const suggestedQuantity = Math.max(0, Math.ceil(rawNeed));
+      const daysOfCover = dailySales > 0 ? product.stock / dailySales : null;
+      const status: ReplenishmentStatus = dailySales <= 0
+        ? 'no_sales'
+        : product.stock <= 0
+          ? 'no_stock'
+          : suggestedQuantity > 0
+            ? 'need'
+            : 'covered';
+
+      return {
+        ...product,
+        dailySales,
+        projectedDemand,
+        suggestedQuantity,
+        daysOfCover,
+        status,
+        statusLabel: statusStyles[status].label
+      };
+    });
+  }, [dateRange, horizonDays, products]);
+
+  const filteredRows = useMemo(() => {
+    const normalizedSearch = searchTerm.trim().toLowerCase();
+    const searchedRows = normalizedSearch
+      ? allRows.filter(row =>
+        row.name.toLowerCase().includes(normalizedSearch) ||
+        row.id.toLowerCase().includes(normalizedSearch)
+      )
+      : allRows;
+
+    const statusRows = statusFilter === 'all'
+      ? searchedRows
+      : searchedRows.filter(row => row.status === statusFilter);
+
+    return [...statusRows].sort((a, b) => {
+      switch (sortBy) {
+        case 'need_asc': return a.suggestedQuantity - b.suggestedQuantity;
+        case 'demand_desc': return b.projectedDemand - a.projectedDemand;
+        case 'stock_asc': return a.stock - b.stock;
+        case 'coverage_asc': return (a.daysOfCover ?? Number.POSITIVE_INFINITY) - (b.daysOfCover ?? Number.POSITIVE_INFINITY);
+        case 'sold_desc': return b.quantitySold - a.quantitySold;
+        case 'name_asc': return a.name.localeCompare(b.name, 'pt-BR');
+        case 'need_desc':
+        default:
+          return b.suggestedQuantity - a.suggestedQuantity;
+      }
+    });
+  }, [allRows, searchTerm, sortBy, statusFilter]);
+
+  const totalPages = Math.ceil(filteredRows.length / itemsPerPage);
+  const safeCurrentPage = Math.min(currentPage, totalPages || 1);
+  const startIndex = (safeCurrentPage - 1) * itemsPerPage;
+  const paginatedRows = filteredRows.slice(startIndex, startIndex + itemsPerPage);
+  const isRefreshing = isLoading && products.length > 0;
+
+  const needRows = allRows.filter(row => row.suggestedQuantity > 0);
+  const totalSuggestedQuantity = needRows.reduce((total, row) => total + row.suggestedQuantity, 0);
+  const projectedDemand = allRows.reduce((total, row) => total + row.projectedDemand, 0);
+  const totalStock = allRows.reduce((total, row) => total + row.stock, 0);
+
+  return (
+    <div className="space-y-6">
+      <div className="grid grid-cols-1 gap-4 2xl:grid-cols-[minmax(520px,1fr)_auto] 2xl:items-start">
+        <div>
+          <h1 className="text-2xl font-bold mb-2 text-zinc-900 dark:text-dark-text">Necessidade de Reposição</h1>
+          <p className="text-zinc-500 dark:text-dark-muted font-medium">
+            Demanda projetada pelo ritmo de venda atual comparada com o estoque disponível.
+          </p>
+        </div>
+
+        <div className="flex flex-col gap-2 sm:flex-row sm:justify-end">
+          <DateRangePicker
+            dateRange={dateRange}
+            onChange={(range) => {
+              setDateRange(range);
+              setCurrentPage(1);
+            }}
+          />
+
+          <button
+            onClick={() => {
+              const exportData = filteredRows.map(row => ({
+                'ID Produto': row.id,
+                'Descricao': row.name,
+                'Status': row.statusLabel,
+                'Horizonte (dias)': horizonDays,
+                'Vendido no Periodo': row.quantitySold,
+                'Media Diaria': row.dailySales.toFixed(2).replace('.', ','),
+                'Demanda Projetada': row.projectedDemand.toFixed(2).replace('.', ','),
+                'Estoque Atual': row.stock,
+                'Cobertura Atual': row.daysOfCover === null ? '' : row.daysOfCover.toFixed(1).replace('.', ','),
+                'Sugestao Reposicao': row.suggestedQuantity
+              }));
+              exportToCSV(exportData, `necessidade_reposicao_${new Date().toISOString().split('T')[0]}.csv`);
+            }}
+            className="flex items-center justify-center gap-2 bg-dark-card border border-dark-border px-4 py-2.5 rounded-xl shadow-sm hover:border-brand-primary transition-colors text-sm font-medium text-dark-text cursor-pointer"
+            title="Exportar para CSV"
+          >
+            <Download size={16} className="text-brand-primary" />
+            <span className="hidden sm:inline">Exportar</span>
+          </button>
+        </div>
+      </div>
+
+      <RefreshStatus isRefreshing={isRefreshing} />
+
+      <div className="grid grid-cols-1 gap-4 md:grid-cols-4">
+        <div className="rounded-2xl border border-dark-border bg-dark-card p-5 shadow-sm">
+          <div className="flex items-start justify-between gap-4">
+            <div>
+              <p className="text-xs font-bold uppercase tracking-widest text-dark-muted">Produtos a repor</p>
+              <p className="mt-2 text-3xl font-bold text-red-300">{formatNumber(needRows.length)}</p>
+              <p className="mt-1 text-xs font-semibold text-dark-muted">Com estoque abaixo da demanda projetada</p>
+            </div>
+            <div className="rounded-xl border border-red-400/25 bg-red-400/10 p-3 text-red-300">
+              <AlertTriangle className="h-5 w-5" />
+            </div>
+          </div>
+        </div>
+
+        <div className="rounded-2xl border border-dark-border bg-dark-card p-5 shadow-sm">
+          <div className="flex items-start justify-between gap-4">
+            <div>
+              <p className="text-xs font-bold uppercase tracking-widest text-dark-muted">Sugestão total</p>
+              <p className="mt-2 text-3xl font-bold text-dark-text">{formatNumber(totalSuggestedQuantity)}</p>
+              <p className="mt-1 text-xs font-semibold text-dark-muted">Unidades para cobrir {horizonDays} dias</p>
+            </div>
+            <div className="rounded-xl border border-brand-primary/25 bg-brand-primary/10 p-3 text-brand-primary">
+              <Package className="h-5 w-5" />
+            </div>
+          </div>
+        </div>
+
+        <div className="rounded-2xl border border-dark-border bg-dark-card p-5 shadow-sm">
+          <div className="flex items-start justify-between gap-4">
+            <div>
+              <p className="text-xs font-bold uppercase tracking-widest text-dark-muted">Demanda projetada</p>
+              <p className="mt-2 text-3xl font-bold text-sky-300">{formatNumber(projectedDemand)}</p>
+              <p className="mt-1 text-xs font-semibold text-dark-muted">Pelo ritmo do período selecionado</p>
+            </div>
+            <div className="rounded-xl border border-sky-400/25 bg-sky-400/10 p-3 text-sky-300">
+              <TrendingUp className="h-5 w-5" />
+            </div>
+          </div>
+        </div>
+
+        <div className="rounded-2xl border border-dark-border bg-dark-card p-5 shadow-sm">
+          <div className="flex items-start justify-between gap-4">
+            <div>
+              <p className="text-xs font-bold uppercase tracking-widest text-dark-muted">Produtos cobertos</p>
+              <p className="mt-2 text-3xl font-bold text-emerald-300">{formatNumber(allRows.filter(row => row.status === 'covered').length)}</p>
+              <p className="mt-1 text-xs font-semibold text-dark-muted">{formatNumber(totalStock)} unidades em estoque</p>
+            </div>
+            <div className="rounded-xl border border-emerald-400/25 bg-emerald-400/10 p-3 text-emerald-300">
+              <CheckCircle2 className="h-5 w-5" />
+            </div>
+          </div>
+        </div>
+      </div>
+
+      <div className="grid grid-cols-1 gap-3 rounded-2xl border border-dark-border bg-dark-card p-4 shadow-sm lg:grid-cols-[1fr_160px_180px_190px]">
+        <div className="relative">
+          <Search className="absolute left-3 top-1/2 h-5 w-5 -translate-y-1/2 text-zinc-400 dark:text-dark-muted" />
+          <input
+            type="text"
+            placeholder="Buscar por nome ou ID..."
+            value={searchTerm}
+            onChange={(event) => {
+              setSearchTerm(event.target.value);
+              setCurrentPage(1);
+            }}
+            className="w-full bg-dark-input border border-dark-border text-dark-text rounded-xl pl-10 pr-4 py-2.5 focus:outline-none focus:border-brand-primary hover:border-brand-primary transition-colors"
+          />
+        </div>
+
+        <select
+          value={horizonDays}
+          onChange={(event) => {
+            setHorizonDays(Number(event.target.value));
+            setCurrentPage(1);
+          }}
+          className="h-11 rounded-xl border border-dark-border bg-dark-input px-3 text-sm font-semibold text-dark-text focus:outline-none focus:border-brand-primary cursor-pointer"
+        >
+          {horizonOptions.map(days => (
+            <option key={days} value={days}>{days} dias</option>
+          ))}
+        </select>
+
+        <select
+          value={statusFilter}
+          onChange={(event) => {
+            setStatusFilter(event.target.value as ReplenishmentFilter);
+            setCurrentPage(1);
+          }}
+          className="h-11 rounded-xl border border-dark-border bg-dark-input px-3 text-sm font-semibold text-dark-text focus:outline-none focus:border-brand-primary cursor-pointer"
+        >
+          {filterOptions.map(option => (
+            <option key={option.value} value={option.value}>{option.label}</option>
+          ))}
+        </select>
+
+        <select
+          value={sortBy}
+          onChange={(event) => {
+            setSortBy(event.target.value as ReplenishmentSort);
+            setCurrentPage(1);
+          }}
+          className="h-11 rounded-xl border border-dark-border bg-dark-input px-3 text-sm font-semibold text-dark-text focus:outline-none focus:border-brand-primary cursor-pointer"
+        >
+          <option value="need_desc">Maior necessidade</option>
+          <option value="need_asc">Menor necessidade</option>
+          <option value="demand_desc">Maior demanda projetada</option>
+          <option value="stock_asc">Menor estoque</option>
+          <option value="coverage_asc">Menor cobertura</option>
+          <option value="sold_desc">Mais vendidos</option>
+          <option value="name_asc">Nome A-Z</option>
+        </select>
+      </div>
+
+      {isLoading && products.length === 0 ? (
+        <ReplenishmentSkeleton />
+      ) : (
+        <div className={`bg-white dark:bg-dark-card border border-zinc-200 dark:border-dark-border rounded-2xl overflow-hidden shadow-sm ${isRefreshing ? 'refreshing-content' : ''}`} aria-busy={isRefreshing}>
+          <div className="overflow-x-auto">
+            <table className="w-full min-w-[1240px] table-fixed text-left text-sm">
+              <colgroup>
+                <col className="w-[120px]" />
+                <col className="w-[360px]" />
+                <col className="w-[130px]" />
+                <col className="w-[140px]" />
+                <col className="w-[120px]" />
+                <col className="w-[150px]" />
+                <col className="w-[130px]" />
+                <col className="w-[110px]" />
+              </colgroup>
+              <thead className="bg-zinc-50 dark:bg-dark-header border-b border-zinc-100 dark:border-dark-border text-zinc-500 dark:text-dark-muted">
+                <tr>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">ID Produto</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Descrição</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Status</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Demanda proj.</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Estoque</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Sugestão reposição</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px]">Cobertura</th>
+                  <th className="px-6 py-4 font-bold uppercase tracking-wider text-[10px] text-right">Ações</th>
+                </tr>
+              </thead>
+              <tbody className="divide-y divide-zinc-100 dark:divide-dark-border">
+                {paginatedRows.map(row => {
+                  const style = statusStyles[row.status];
+
+                  return (
+                    <tr key={row.id} className="hover:bg-zinc-50/80 dark:hover:bg-dark-input/50 transition-colors">
+                      <td className="px-6 py-2.5 font-mono text-[11px] text-zinc-400 dark:text-dark-muted">#{row.id}</td>
+                      <td className="max-w-0 px-6 py-2.5">
+                        <div className="truncate font-semibold text-zinc-900 dark:text-dark-text" title={row.name}>{row.name}</div>
+                        <div className="text-[10px] text-zinc-400 dark:text-dark-muted font-medium">
+                          Média: {formatNumber(row.dailySales, 2)} un./dia · Vendido: {formatNumber(row.quantitySold)} un.
+                        </div>
+                      </td>
+                      <td className="px-6 py-2.5">
+                        <span className={`inline-flex items-center gap-2 whitespace-nowrap rounded-full border px-2.5 py-1 text-xs font-bold ${style.className}`}>
+                          <span className={`h-2 w-2 rounded-full ${style.dotClass}`} />
+                          {style.label}
+                        </span>
+                      </td>
+                      <td className="px-6 py-2.5 font-bold text-zinc-900 dark:text-dark-text whitespace-nowrap">{formatNumber(row.projectedDemand, 1)} un.</td>
+                      <td className="px-6 py-2.5 font-bold text-zinc-900 dark:text-dark-text whitespace-nowrap">{formatNumber(row.stock)} un.</td>
+                      <td className="px-6 py-2.5 whitespace-nowrap">
+                        <span className={row.suggestedQuantity > 0 ? 'font-bold text-red-300' : 'font-bold text-emerald-300'}>
+                          {formatNumber(row.suggestedQuantity)} un.
+                        </span>
+                      </td>
+                      <td className="px-6 py-2.5 font-bold text-zinc-900 dark:text-dark-text whitespace-nowrap">{formatDays(row.daysOfCover)}</td>
+                      <td className="px-4 py-2.5 text-right">
+                        <Link
+                          to={`/products/${row.id}`}
+                          className="inline-flex items-center whitespace-nowrap text-xs font-bold text-brand-primary hover:opacity-80 transition-opacity bg-brand-primary/10 px-3 py-1.5 rounded-lg cursor-pointer"
+                        >
+                          Ver produto
+                        </Link>
+                      </td>
+                    </tr>
+                  );
+                })}
+              </tbody>
+            </table>
+          </div>
+
+          {!filteredRows.length && (
+            <div className="px-6 py-12 text-center">
+              <Package className="mx-auto h-10 w-10 text-dark-muted" />
+              <p className="mt-4 text-sm font-bold text-dark-text">Nenhum produto encontrado.</p>
+              <p className="mt-1 text-sm text-dark-muted">Ajuste os filtros, a busca ou o período selecionado.</p>
+            </div>
+          )}
+
+          <PaginationControls
+            totalItems={filteredRows.length}
+            currentPage={safeCurrentPage}
+            totalPages={totalPages}
+            pageSize={itemsPerPage}
+            pageSizeOptions={[10, 20, 50, 100]}
+            itemLabel="produtos"
+            pageSizeLabel="itens por página"
+            startIndex={startIndex}
+            endIndex={Math.min(startIndex + itemsPerPage, filteredRows.length)}
+            onPageChange={setCurrentPage}
+            onPageSizeChange={(pageSize) => {
+              setItemsPerPage(pageSize);
+              setCurrentPage(1);
+            }}
+          />
+        </div>
+      )}
+    </div>
+  );
+};
+
+export default Replenishment;