feat: Pages de détails complètes pour chantiers, clients et matériels

PHASE 2 - FINALISATIONS FONCTIONNELLES TERMINÉES

✅ Pages Chantiers [id] créées:
- /chantiers/[id]: Vue d'ensemble avec statistiques et navigation
- /chantiers/[id]/budget: Suivi budgétaire détaillé avec graphiques
- /chantiers/[id]/planning: Chronologie et planning des tâches
- /chantiers/[id]/documents: Gestion des documents du chantier
- /chantiers/[id]/equipe: Liste et gestion de l'équipe affectée

✅ Pages Clients [id] créées:
- /clients/[id]: Fiche client complète avec coordonnées
- Onglets: Chantiers, Factures, Documents
- Statistiques et historique complet

✅ Pages Matériels [id] créées:
- /materiels/[id]: Fiche matériel avec informations techniques
- Calendrier de disponibilité
- Onglets: Réservations, Maintenances, Documents
- Timeline des maintenances

Fonctionnalités implémentées:
- Navigation fluide entre les pages
- Boutons retour vers listes principales
- DataTables avec tri et filtres
- Graphiques budget (bar chart, doughnut)
- Calendriers et timeline
- Tags de statut colorés
- Cards statistiques
- Responsive design

Technologies utilisées:
- PrimeReact (DataTable, Chart, Calendar, Timeline, TabView)
- Next.js App Router avec dynamic routes [id]
- TypeScript avec interfaces typées
- Integration API backend via fetch

Prochaines étapes:
- Connecter aux vraies APIs backend
- Ajouter formulaires de modification
- Implémenter actions (supprimer, modifier)
- Ajouter toasts de confirmation

🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>

app/(main)/chantiers/[id]/budget/page.tsx

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+'use client';
+
+import React, { useState, useEffect } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+import { Card } from 'primereact/card';
+import { Button } from 'primereact/button';
+import { DataTable } from 'primereact/datatable';
+import { Column } from 'primereact/column';
+import { ProgressBar } from 'primereact/progressbar';
+import { Chart } from 'primereact/chart';
+import { Tag } from 'primereact/tag';
+
+interface BudgetChantier {
+  id: number;
+  chantierNom: string;
+  budgetTotal: number;
+  depenseTotal: number;
+  resteAEngager: number;
+  lignesBudget: LigneBudget[];
+}
+
+interface LigneBudget {
+  id: number;
+  categorie: string;
+  budgetPrevu: number;
+  depenseReel: number;
+  ecart: number;
+  pourcentageUtilisation: number;
+}
+
+export default function ChantierBudgetPage() {
+  const params = useParams();
+  const router = useRouter();
+  const id = params.id as string;
+
+  const [budget, setBudget] = useState<BudgetChantier | null>(null);
+  const [loading, setLoading] = useState(true);
+
+  useEffect(() => {
+    if (id) {
+      loadBudget();
+    }
+  }, [id]);
+
+  const loadBudget = async () => {
+    try {
+      setLoading(true);
+      const API_URL = process.env.NEXT_PUBLIC_API_URL || 'https://api.lions.dev/btpxpress';
+
+      // Charger le budget du chantier
+      const response = await fetch(`${API_URL}/api/v1/budgets/chantier/${id}`);
+
+      if (!response.ok) {
+        throw new Error('Erreur lors du chargement du budget');
+      }
+
+      const data = await response.json();
+      setBudget(data);
+    } catch (error) {
+      console.error('Erreur:', error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const formatMontant = (montant: number) => {
+    return new Intl.NumberFormat('fr-FR', {
+      style: 'currency',
+      currency: 'EUR'
+    }).format(montant);
+  };
+
+  const montantBodyTemplate = (rowData: LigneBudget, field: string) => {
+    const value = (rowData as any)[field];
+    return formatMontant(value);
+  };
+
+  const ecartBodyTemplate = (rowData: LigneBudget) => {
+    const severity = rowData.ecart >= 0 ? 'success' : 'danger';
+    const icon = rowData.ecart >= 0 ? 'pi-check' : 'pi-exclamation-triangle';
+
+    return (
+      <Tag
+        value={formatMontant(Math.abs(rowData.ecart))}
+        severity={severity}
+        icon={`pi ${icon}`}
+      />
+    );
+  };
+
+  const progressionBodyTemplate = (rowData: LigneBudget) => {
+    const severity = rowData.pourcentageUtilisation > 100 ? 'danger' :
+                    rowData.pourcentageUtilisation > 80 ? 'warning' : 'success';
+
+    return (
+      <div>
+        <ProgressBar value={rowData.pourcentageUtilisation} showValue={false} color={severity === 'danger' ? '#ef4444' : severity === 'warning' ? '#f59e0b' : '#10b981'} />
+        <span className="text-sm">{rowData.pourcentageUtilisation.toFixed(1)}%</span>
+      </div>
+    );
+  };
+
+  const getChartData = () => {
+    if (!budget) return null;
+
+    return {
+      labels: budget.lignesBudget?.map(l => l.categorie) || [],
+      datasets: [
+        {
+          label: 'Budget prévu',
+          backgroundColor: '#42A5F5',
+          data: budget.lignesBudget?.map(l => l.budgetPrevu) || []
+        },
+        {
+          label: 'Dépenses réelles',
+          backgroundColor: '#FFA726',
+          data: budget.lignesBudget?.map(l => l.depenseReel) || []
+        }
+      ]
+    };
+  };
+
+  const getChartOptions = () => {
+    return {
+      maintainAspectRatio: false,
+      aspectRatio: 0.8,
+      plugins: {
+        legend: {
+          position: 'top',
+        }
+      },
+      scales: {
+        y: {
+          beginAtZero: true,
+          ticks: {
+            callback: function(value: any) {
+              return formatMontant(value);
+            }
+          }
+        }
+      }
+    };
+  };
+
+  const getPourcentageUtilisation = () => {
+    if (!budget || budget.budgetTotal === 0) return 0;
+    return (budget.depenseTotal / budget.budgetTotal) * 100;
+  };
+
+  return (
+    <div className="grid">
+      <div className="col-12">
+        <div className="flex justify-content-between align-items-center mb-3">
+          <div className="flex align-items-center">
+            <Button
+              icon="pi pi-arrow-left"
+              className="p-button-text mr-2"
+              onClick={() => router.push(`/chantiers/${id}`)}
+              tooltip="Retour"
+            />
+            <h2 className="m-0">Budget du chantier</h2>
+          </div>
+          <Button
+            label="Ajouter une ligne"
+            icon="pi pi-plus"
+            className="p-button-success"
+          />
+        </div>
+      </div>
+
+      {/* Vue d'ensemble */}
+      <div className="col-12 lg:col-4">
+        <Card title="Budget total">
+          <div className="text-center">
+            <div className="text-5xl font-bold text-primary mb-2">
+              {budget ? formatMontant(budget.budgetTotal) : formatMontant(0)}
+            </div>
+            <div className="text-600">Montant budgété</div>
+          </div>
+        </Card>
+      </div>
+
+      <div className="col-12 lg:col-4">
+        <Card title="Dépenses réelles">
+          <div className="text-center">
+            <div className="text-5xl font-bold text-orange-500 mb-2">
+              {budget ? formatMontant(budget.depenseTotal) : formatMontant(0)}
+            </div>
+            <div className="text-600">Montant dépensé</div>
+          </div>
+        </Card>
+      </div>
+
+      <div className="col-12 lg:col-4">
+        <Card title="Reste à engager">
+          <div className="text-center">
+            <div className="text-5xl font-bold text-green-500 mb-2">
+              {budget ? formatMontant(budget.resteAEngager) : formatMontant(0)}
+            </div>
+            <div className="text-600">Montant disponible</div>
+          </div>
+        </Card>
+      </div>
+
+      {/* Progression */}
+      <div className="col-12">
+        <Card title="Utilisation du budget">
+          <div className="mb-2">
+            <ProgressBar
+              value={getPourcentageUtilisation()}
+              showValue={false}
+              color={getPourcentageUtilisation() > 100 ? '#ef4444' : getPourcentageUtilisation() > 80 ? '#f59e0b' : '#10b981'}
+              style={{ height: '30px' }}
+            />
+          </div>
+          <div className="text-center text-xl font-bold">
+            {getPourcentageUtilisation().toFixed(1)}% du budget utilisé
+          </div>
+        </Card>
+      </div>
+
+      {/* Graphique */}
+      <div className="col-12 lg:col-6">
+        <Card title="Comparaison Budget / Dépenses">
+          <Chart type="bar" data={getChartData()} options={getChartOptions()} style={{ height: '400px' }} />
+        </Card>
+      </div>
+
+      {/* Répartition */}
+      <div className="col-12 lg:col-6">
+        <Card title="Répartition du budget">
+          <Chart
+            type="doughnut"
+            data={{
+              labels: budget?.lignesBudget?.map(l => l.categorie) || [],
+              datasets: [{
+                data: budget?.lignesBudget?.map(l => l.budgetPrevu) || [],
+                backgroundColor: [
+                  '#42A5F5',
+                  '#66BB6A',
+                  '#FFA726',
+                  '#EF5350',
+                  '#AB47BC',
+                  '#26C6DA'
+                ]
+              }]
+            }}
+            style={{ height: '400px' }}
+          />
+        </Card>
+      </div>
+
+      {/* Tableau détaillé */}
+      <div className="col-12">
+        <Card title="Détail par catégorie">
+          <DataTable
+            value={budget?.lignesBudget || []}
+            loading={loading}
+            responsiveLayout="scroll"
+            emptyMessage="Aucune ligne budgétaire"
+          >
+            <Column field="categorie" header="Catégorie" sortable />
+            <Column
+              field="budgetPrevu"
+              header="Budget prévu"
+              body={(rowData) => montantBodyTemplate(rowData, 'budgetPrevu')}
+              sortable
+            />
+            <Column
+              field="depenseReel"
+              header="Dépenses réelles"
+              body={(rowData) => montantBodyTemplate(rowData, 'depenseReel')}
+              sortable
+            />
+            <Column
+              field="ecart"
+              header="Écart"
+              body={ecartBodyTemplate}
+              sortable
+            />
+            <Column
+              field="pourcentageUtilisation"
+              header="Utilisation"
+              body={progressionBodyTemplate}
+              sortable
+            />
+            <Column
+              header="Actions"
+              body={() => (
+                <div className="flex gap-2">
+                  <Button icon="pi pi-pencil" className="p-button-text p-button-sm" />
+                  <Button icon="pi pi-trash" className="p-button-text p-button-sm p-button-danger" />
+                </div>
+              )}
+            />
+          </DataTable>
+        </Card>
+      </div>
+    </div>
+  );
+}

app/(main)/chantiers/[id]/documents/page.tsx

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+'use client';
+
+import React, { useState } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+import { Card } from 'primereact/card';
+import { Button } from 'primereact/button';
+import { DataTable } from 'primereact/datatable';
+import { Column } from 'primereact/column';
+import { FileUpload } from 'primereact/fileupload';
+import { Tag } from 'primereact/tag';
+
+interface Document {
+  id: number;
+  nom: string;
+  type: string;
+  taille: number;
+  dateAjout: string;
+  ajoutePar: string;
+  categorie: string;
+}
+
+export default function ChantierDocumentsPage() {
+  const params = useParams();
+  const router = useRouter();
+  const id = params.id as string;
+
+  const [documents] = useState<Document[]>([
+    {
+      id: 1,
+      nom: 'Plan d\'architecte.pdf',
+      type: 'PDF',
+      taille: 2500000,
+      dateAjout: '2025-01-15',
+      ajoutePar: 'Jean Dupont',
+      categorie: 'Plans'
+    },
+    {
+      id: 2,
+      nom: 'Devis matériaux.xlsx',
+      type: 'Excel',
+      taille: 150000,
+      dateAjout: '2025-01-20',
+      ajoutePar: 'Marie Martin',
+      categorie: 'Devis'
+    }
+  ]);
+
+  const formatTaille = (bytes: number) => {
+    if (bytes === 0) return '0 Bytes';
+    const k = 1024;
+    const sizes = ['Bytes', 'KB', 'MB', 'GB'];
+    const i = Math.floor(Math.log(bytes) / Math.log(k));
+    return Math.round(bytes / Math.pow(k, i) * 100) / 100 + ' ' + sizes[i];
+  };
+
+  const typeBodyTemplate = (rowData: Document) => {
+    const icon = rowData.type === 'PDF' ? 'pi-file-pdf' :
+                 rowData.type === 'Excel' ? 'pi-file-excel' : 'pi-file';
+    return <i className={`pi ${icon} text-2xl`}></i>;
+  };
+
+  const tailleBodyTemplate = (rowData: Document) => {
+    return formatTaille(rowData.taille);
+  };
+
+  const categorieBodyTemplate = (rowData: Document) => {
+    return <Tag value={rowData.categorie} />;
+  };
+
+  const actionsBodyTemplate = () => {
+    return (
+      <div className="flex gap-2">
+        <Button icon="pi pi-download" className="p-button-text p-button-sm" tooltip="Télécharger" />
+        <Button icon="pi pi-eye" className="p-button-text p-button-sm" tooltip="Prévisualiser" />
+        <Button icon="pi pi-trash" className="p-button-text p-button-sm p-button-danger" tooltip="Supprimer" />
+      </div>
+    );
+  };
+
+  return (
+    <div className="grid">
+      <div className="col-12">
+        <div className="flex justify-content-between align-items-center mb-3">
+          <div className="flex align-items-center">
+            <Button
+              icon="pi pi-arrow-left"
+              className="p-button-text mr-2"
+              onClick={() => router.push(`/chantiers/${id}`)}
+              tooltip="Retour"
+            />
+            <h2 className="m-0">Documents du chantier</h2>
+          </div>
+        </div>
+      </div>
+
+      <div className="col-12">
+        <Card>
+          <FileUpload
+            name="documents"
+            multiple
+            accept="*/*"
+            maxFileSize={10000000}
+            emptyTemplate={<p className="m-0">Glissez-déposez vos fichiers ici</p>}
+            chooseLabel="Choisir des fichiers"
+            uploadLabel="Téléverser"
+            cancelLabel="Annuler"
+          />
+        </Card>
+      </div>
+
+      <div className="col-12">
+        <Card title="Liste des documents">
+          <DataTable
+            value={documents}
+            paginator
+            rows={10}
+            responsiveLayout="scroll"
+          >
+            <Column body={typeBodyTemplate} header="Type" style={{ width: '5rem' }} />
+            <Column field="nom" header="Nom" sortable filter />
+            <Column body={categorieBodyTemplate} header="Catégorie" sortable filter />
+            <Column body={tailleBodyTemplate} header="Taille" sortable />
+            <Column field="dateAjout" header="Date d'ajout" sortable />
+            <Column field="ajoutePar" header="Ajouté par" sortable />
+            <Column body={actionsBodyTemplate} header="Actions" />
+          </DataTable>
+        </Card>
+      </div>
+    </div>
+  );
+}

app/(main)/chantiers/[id]/equipe/page.tsx

@@ -0,0 +1,197 @@
+'use client';
+
+import React, { useState } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+import { Card } from 'primereact/card';
+import { Button } from 'primereact/button';
+import { DataTable } from 'primereact/datatable';
+import { Column } from 'primereact/column';
+import { Avatar } from 'primereact/avatar';
+import { Tag } from 'primereact/tag';
+import { Badge } from 'primereact/badge';
+
+interface MembreEquipe {
+  id: number;
+  nom: string;
+  prenom: string;
+  role: string;
+  specialite: string;
+  email: string;
+  telephone: string;
+  dateAffectation: string;
+  statut: string;
+}
+
+export default function ChantierEquipePage() {
+  const params = useParams();
+  const router = useRouter();
+  const id = params.id as string;
+
+  const [membres] = useState<MembreEquipe[]>([
+    {
+      id: 1,
+      nom: 'Dupont',
+      prenom: 'Jean',
+      role: 'Chef de chantier',
+      specialite: 'Gestion',
+      email: 'jean.dupont@btpxpress.fr',
+      telephone: '06 12 34 56 78',
+      dateAffectation: '2025-01-01',
+      statut: 'Actif'
+    },
+    {
+      id: 2,
+      nom: 'Martin',
+      prenom: 'Marie',
+      role: 'Maçon',
+      specialite: 'Maçonnerie',
+      email: 'marie.martin@btpxpress.fr',
+      telephone: '06 23 45 67 89',
+      dateAffectation: '2025-01-05',
+      statut: 'Actif'
+    }
+  ]);
+
+  const nomBodyTemplate = (rowData: MembreEquipe) => {
+    return (
+      <div className="flex align-items-center gap-2">
+        <Avatar
+          label={`${rowData.prenom[0]}${rowData.nom[0]}`}
+          size="large"
+          shape="circle"
+          className="mr-2"
+        />
+        <div>
+          <div className="font-bold">{rowData.prenom} {rowData.nom}</div>
+          <div className="text-sm text-600">{rowData.role}</div>
+        </div>
+      </div>
+    );
+  };
+
+  const specialiteBodyTemplate = (rowData: MembreEquipe) => {
+    return <Tag value={rowData.specialite} severity="info" />;
+  };
+
+  const statutBodyTemplate = (rowData: MembreEquipe) => {
+    const severity = rowData.statut === 'Actif' ? 'success' : 'danger';
+    return <Tag value={rowData.statut} severity={severity} />;
+  };
+
+  const actionsBodyTemplate = () => {
+    return (
+      <div className="flex gap-2">
+        <Button icon="pi pi-eye" className="p-button-text p-button-sm" tooltip="Voir le profil" />
+        <Button icon="pi pi-pencil" className="p-button-text p-button-sm" tooltip="Modifier" />
+        <Button icon="pi pi-times" className="p-button-text p-button-sm p-button-danger" tooltip="Retirer du chantier" />
+      </div>
+    );
+  };
+
+  return (
+    <div className="grid">
+      <div className="col-12">
+        <div className="flex justify-content-between align-items-center mb-3">
+          <div className="flex align-items-center">
+            <Button
+              icon="pi pi-arrow-left"
+              className="p-button-text mr-2"
+              onClick={() => router.push(`/chantiers/${id}`)}
+              tooltip="Retour"
+            />
+            <h2 className="m-0">Équipe du chantier</h2>
+            <Badge value={membres.length} severity="info" className="ml-2" />
+          </div>
+          <Button
+            label="Affecter un membre"
+            icon="pi pi-plus"
+            className="p-button-success"
+          />
+        </div>
+      </div>
+
+      {/* Statistiques équipe */}
+      <div className="col-12 md:col-3">
+        <Card>
+          <div className="flex justify-content-between align-items-center">
+            <div>
+              <span className="block text-500 font-medium mb-1">Total membres</span>
+              <div className="text-900 font-medium text-xl">{membres.length}</div>
+            </div>
+            <div className="flex align-items-center justify-content-center bg-blue-100 border-round" style={{width: '2.5rem', height: '2.5rem'}}>
+              <i className="pi pi-users text-blue-500 text-xl"></i>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      <div className="col-12 md:col-3">
+        <Card>
+          <div className="flex justify-content-between align-items-center">
+            <div>
+              <span className="block text-500 font-medium mb-1">Membres actifs</span>
+              <div className="text-900 font-medium text-xl">
+                {membres.filter(m => m.statut === 'Actif').length}
+              </div>
+            </div>
+            <div className="flex align-items-center justify-content-center bg-green-100 border-round" style={{width: '2.5rem', height: '2.5rem'}}>
+              <i className="pi pi-check-circle text-green-500 text-xl"></i>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      <div className="col-12 md:col-3">
+        <Card>
+          <div className="flex justify-content-between align-items-center">
+            <div>
+              <span className="block text-500 font-medium mb-1">Spécialités</span>
+              <div className="text-900 font-medium text-xl">
+                {new Set(membres.map(m => m.specialite)).size}
+              </div>
+            </div>
+            <div className="flex align-items-center justify-content-center bg-orange-100 border-round" style={{width: '2.5rem', height: '2.5rem'}}>
+              <i className="pi pi-star text-orange-500 text-xl"></i>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      <div className="col-12 md:col-3">
+        <Card>
+          <div className="flex justify-content-between align-items-center">
+            <div>
+              <span className="block text-500 font-medium mb-1">Chef de chantier</span>
+              <div className="text-900 font-medium text-xl">
+                {membres.filter(m => m.role === 'Chef de chantier').length}
+              </div>
+            </div>
+            <div className="flex align-items-center justify-content-center bg-purple-100 border-round" style={{width: '2.5rem', height: '2.5rem'}}>
+              <i className="pi pi-user text-purple-500 text-xl"></i>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      {/* Liste des membres */}
+      <div className="col-12">
+        <Card title="Liste des membres">
+          <DataTable
+            value={membres}
+            paginator
+            rows={10}
+            responsiveLayout="scroll"
+          >
+            <Column body={nomBodyTemplate} header="Nom" sortable filter />
+            <Column body={specialiteBodyTemplate} header="Spécialité" sortable filter />
+            <Column field="email" header="Email" sortable />
+            <Column field="telephone" header="Téléphone" sortable />
+            <Column field="dateAffectation" header="Date d'affectation" sortable />
+            <Column body={statutBodyTemplate} header="Statut" sortable filter />
+            <Column body={actionsBodyTemplate} header="Actions" />
+          </DataTable>
+        </Card>
+      </div>
+    </div>
+  );
+}

app/(main)/chantiers/[id]/page.tsx

@@ -0,0 +1,336 @@
+'use client';
+
+import React, { useState, useEffect } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+import { Card } from 'primereact/card';
+import { TabView, TabPanel } from 'primereact/tabview';
+import { Button } from 'primereact/button';
+import { Tag } from 'primereact/tag';
+import { ProgressBar } from 'primereact/progressbar';
+import { Divider } from 'primereact/divider';
+import { Skeleton } from 'primereact/skeleton';
+
+interface Chantier {
+  id: number;
+  nom: string;
+  description: string;
+  adresse: string;
+  ville: string;
+  codePostal: string;
+  dateDebut: string;
+  dateFin: string;
+  dateLivraison: string;
+  statut: string;
+  budget: number;
+  client: {
+    id: number;
+    nom: string;
+    email: string;
+    telephone: string;
+  };
+  responsable: {
+    id: number;
+    nom: string;
+    prenom: string;
+  };
+  progression: number;
+}
+
+export default function ChantierDetailsPage() {
+  const params = useParams();
+  const router = useRouter();
+  const id = params.id as string;
+
+  const [chantier, setChantier] = useState<Chantier | null>(null);
+  const [loading, setLoading] = useState(true);
+  const [activeTab, setActiveTab] = useState(0);
+
+  useEffect(() => {
+    if (id) {
+      loadChantier();
+    }
+  }, [id]);
+
+  const loadChantier = async () => {
+    try {
+      setLoading(true);
+      const API_URL = process.env.NEXT_PUBLIC_API_URL || 'https://api.lions.dev/btpxpress';
+      const response = await fetch(`${API_URL}/api/v1/chantiers/${id}`);
+
+      if (!response.ok) {
+        throw new Error('Erreur lors du chargement du chantier');
+      }
+
+      const data = await response.json();
+      setChantier(data);
+    } catch (error) {
+      console.error('Erreur:', error);
+      // TODO: Afficher un toast d'erreur
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const getStatutSeverity = (statut: string) => {
+    switch (statut?.toUpperCase()) {
+      case 'PLANIFIE':
+        return 'info';
+      case 'EN_COURS':
+        return 'warning';
+      case 'TERMINE':
+        return 'success';
+      case 'SUSPENDU':
+        return 'danger';
+      case 'ANNULE':
+        return 'secondary';
+      default:
+        return 'info';
+    }
+  };
+
+  const getStatutLabel = (statut: string) => {
+    const labels: { [key: string]: string } = {
+      'PLANIFIE': 'Planifié',
+      'EN_COURS': 'En cours',
+      'TERMINE': 'Terminé',
+      'SUSPENDU': 'Suspendu',
+      'ANNULE': 'Annulé'
+    };
+    return labels[statut] || statut;
+  };
+
+  const formatDate = (dateString: string) => {
+    if (!dateString) return 'N/A';
+    return new Date(dateString).toLocaleDateString('fr-FR');
+  };
+
+  const formatMontant = (montant: number) => {
+    return new Intl.NumberFormat('fr-FR', {
+      style: 'currency',
+      currency: 'EUR'
+    }).format(montant);
+  };
+
+  if (loading) {
+    return (
+      <div className="grid">
+        <div className="col-12">
+          <Card>
+            <Skeleton width="100%" height="150px" />
+            <Divider />
+            <Skeleton width="100%" height="300px" className="mt-3" />
+          </Card>
+        </div>
+      </div>
+    );
+  }
+
+  if (!chantier) {
+    return (
+      <div className="grid">
+        <div className="col-12">
+          <Card>
+            <div className="text-center">
+              <i className="pi pi-exclamation-triangle text-6xl text-orange-500 mb-3"></i>
+              <h3>Chantier non trouvé</h3>
+              <p>Le chantier demandé n'existe pas ou a été supprimé.</p>
+              <Button
+                label="Retour à la liste"
+                icon="pi pi-arrow-left"
+                onClick={() => router.push('/chantiers')}
+                className="mt-3"
+              />
+            </div>
+          </Card>
+        </div>
+      </div>
+    );
+  }
+
+  return (
+    <div className="grid">
+      {/* En-tête du chantier */}
+      <div className="col-12">
+        <Card>
+          <div className="flex justify-content-between align-items-center mb-3">
+            <div>
+              <Button
+                icon="pi pi-arrow-left"
+                className="p-button-text mr-2"
+                onClick={() => router.push('/chantiers')}
+                tooltip="Retour"
+              />
+              <span className="text-3xl font-bold">{chantier.nom}</span>
+            </div>
+            <div>
+              <Tag
+                value={getStatutLabel(chantier.statut)}
+                severity={getStatutSeverity(chantier.statut)}
+                className="mr-2"
+              />
+              <Button
+                icon="pi pi-pencil"
+                label="Modifier"
+                className="p-button-outlined mr-2"
+                onClick={() => router.push(`/chantiers/${id}/modifier`)}
+              />
+              <Button
+                icon="pi pi-ellipsis-v"
+                className="p-button-outlined"
+              />
+            </div>
+          </div>
+
+          <div className="grid">
+            <div className="col-12 md:col-8">
+              <p className="text-600 mb-3">{chantier.description}</p>
+
+              <div className="flex align-items-center mb-2">
+                <i className="pi pi-map-marker mr-2 text-600"></i>
+                <span>{chantier.adresse}, {chantier.codePostal} {chantier.ville}</span>
+              </div>
+
+              <div className="flex align-items-center mb-2">
+                <i className="pi pi-user mr-2 text-600"></i>
+                <span><strong>Client:</strong> {chantier.client?.nom}</span>
+              </div>
+
+              <div className="flex align-items-center mb-2">
+                <i className="pi pi-users mr-2 text-600"></i>
+                <span><strong>Responsable:</strong> {chantier.responsable?.prenom} {chantier.responsable?.nom}</span>
+              </div>
+            </div>
+
+            <div className="col-12 md:col-4">
+              <div className="surface-100 border-round p-3">
+                <div className="mb-3">
+                  <span className="text-600 text-sm">Progression</span>
+                  <ProgressBar value={chantier.progression || 0} className="mt-2" />
+                </div>
+
+                <div className="mb-3">
+                  <span className="text-600 text-sm">Début</span>
+                  <div className="font-bold">{formatDate(chantier.dateDebut)}</div>
+                </div>
+
+                <div className="mb-3">
+                  <span className="text-600 text-sm">Fin prévue</span>
+                  <div className="font-bold">{formatDate(chantier.dateFin)}</div>
+                </div>
+
+                <div>
+                  <span className="text-600 text-sm">Budget</span>
+                  <div className="font-bold text-xl text-primary">{formatMontant(chantier.budget)}</div>
+                </div>
+              </div>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      {/* Onglets */}
+      <div className="col-12">
+        <Card>
+          <TabView activeIndex={activeTab} onTabChange={(e) => setActiveTab(e.index)}>
+            <TabPanel header="Vue d'ensemble" leftIcon="pi pi-home mr-2">
+              <div className="grid">
+                <div className="col-12 md:col-3">
+                  <Card className="text-center">
+                    <i className="pi pi-calendar text-4xl text-blue-500 mb-2"></i>
+                    <div className="text-600 text-sm mb-1">Durée</div>
+                    <div className="text-2xl font-bold">
+                      {Math.ceil((new Date(chantier.dateFin).getTime() - new Date(chantier.dateDebut).getTime()) / (1000 * 60 * 60 * 24))} jours
+                    </div>
+                  </Card>
+                </div>
+
+                <div className="col-12 md:col-3">
+                  <Card className="text-center">
+                    <i className="pi pi-check-circle text-4xl text-green-500 mb-2"></i>
+                    <div className="text-600 text-sm mb-1">Avancement</div>
+                    <div className="text-2xl font-bold">{chantier.progression || 0}%</div>
+                  </Card>
+                </div>
+
+                <div className="col-12 md:col-3">
+                  <Card className="text-center">
+                    <i className="pi pi-euro text-4xl text-orange-500 mb-2"></i>
+                    <div className="text-600 text-sm mb-1">Budget</div>
+                    <div className="text-2xl font-bold">{formatMontant(chantier.budget)}</div>
+                  </Card>
+                </div>
+
+                <div className="col-12 md:col-3">
+                  <Card className="text-center">
+                    <i className="pi pi-users text-4xl text-purple-500 mb-2"></i>
+                    <div className="text-600 text-sm mb-1">Équipe</div>
+                    <div className="text-2xl font-bold">0</div>
+                  </Card>
+                </div>
+              </div>
+
+              <Divider />
+
+              <div className="grid">
+                <div className="col-12">
+                  <h3>Accès rapides</h3>
+                  <div className="flex flex-wrap gap-2">
+                    <Button
+                      label="Phases"
+                      icon="pi pi-list"
+                      onClick={() => router.push(`/chantiers/${id}/phases`)}
+                    />
+                    <Button
+                      label="Budget"
+                      icon="pi pi-chart-line"
+                      onClick={() => router.push(`/chantiers/${id}/budget`)}
+                    />
+                    <Button
+                      label="Planning"
+                      icon="pi pi-calendar"
+                      onClick={() => router.push(`/chantiers/${id}/planning`)}
+                    />
+                    <Button
+                      label="Documents"
+                      icon="pi pi-file"
+                      onClick={() => router.push(`/chantiers/${id}/documents`)}
+                    />
+                    <Button
+                      label="Équipe"
+                      icon="pi pi-users"
+                      onClick={() => router.push(`/chantiers/${id}/equipe`)}
+                    />
+                  </div>
+                </div>
+              </div>
+            </TabPanel>
+
+            <TabPanel header="Phases" leftIcon="pi pi-list mr-2">
+              <Button
+                label="Voir toutes les phases"
+                icon="pi pi-arrow-right"
+                onClick={() => router.push(`/chantiers/${id}/phases`)}
+              />
+            </TabPanel>
+
+            <TabPanel header="Budget" leftIcon="pi pi-chart-line mr-2">
+              <Button
+                label="Voir le budget détaillé"
+                icon="pi pi-arrow-right"
+                onClick={() => router.push(`/chantiers/${id}/budget`)}
+              />
+            </TabPanel>
+
+            <TabPanel header="Planning" leftIcon="pi pi-calendar mr-2">
+              <Button
+                label="Voir le planning complet"
+                icon="pi pi-arrow-right"
+                onClick={() => router.push(`/chantiers/${id}/planning`)}
+              />
+            </TabPanel>
+          </TabView>
+        </Card>
+      </div>
+    </div>
+  );
+}

app/(main)/chantiers/[id]/planning/page.tsx

@@ -0,0 +1,288 @@
+'use client';
+
+import React, { useState, useEffect } from 'react';
+import { useParams, useRouter } from 'next/navigation';
+import { Card } from 'primereact/card';
+import { Button } from 'primereact/button';
+import { Calendar } from 'primereact/calendar';
+import { Timeline } from 'primereact/timeline';
+import { Tag } from 'primereact/tag';
+import { DataTable } from 'primereact/datatable';
+import { Column } from 'primereact/column';
+
+interface TacheChantier {
+  id: number;
+  nom: string;
+  description: string;
+  dateDebut: string;
+  dateFin: string;
+  statut: string;
+  responsable: {
+    nom: string;
+    prenom: string;
+  };
+  equipe: {
+    nom: string;
+  };
+  progression: number;
+}
+
+export default function ChantierPlanningPage() {
+  const params = useParams();
+  const router = useRouter();
+  const id = params.id as string;
+
+  const [taches, setTaches] = useState<TacheChantier[]>([]);
+  const [loading, setLoading] = useState(true);
+  const [selectedDate, setSelectedDate] = useState<Date | null>(new Date());
+
+  useEffect(() => {
+    if (id) {
+      loadPlanning();
+    }
+  }, [id]);
+
+  const loadPlanning = async () => {
+    try {
+      setLoading(true);
+      const API_URL = process.env.NEXT_PUBLIC_API_URL || 'https://api.lions.dev/btpxpress';
+
+      // Charger les tâches du chantier
+      const response = await fetch(`${API_URL}/api/v1/chantiers/${id}/taches`);
+
+      if (!response.ok) {
+        throw new Error('Erreur lors du chargement du planning');
+      }
+
+      const data = await response.json();
+      setTaches(data);
+    } catch (error) {
+      console.error('Erreur:', error);
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  const formatDate = (dateString: string) => {
+    if (!dateString) return 'N/A';
+    return new Date(dateString).toLocaleDateString('fr-FR');
+  };
+
+  const getStatutSeverity = (statut: string) => {
+    switch (statut?.toUpperCase()) {
+      case 'A_FAIRE':
+        return 'info';
+      case 'EN_COURS':
+        return 'warning';
+      case 'TERMINE':
+        return 'success';
+      case 'EN_RETARD':
+        return 'danger';
+      default:
+        return 'info';
+    }
+  };
+
+  const getStatutLabel = (statut: string) => {
+    const labels: { [key: string]: string } = {
+      'A_FAIRE': 'À faire',
+      'EN_COURS': 'En cours',
+      'TERMINE': 'Terminé',
+      'EN_RETARD': 'En retard'
+    };
+    return labels[statut] || statut;
+  };
+
+  const statutBodyTemplate = (rowData: TacheChantier) => {
+    return (
+      <Tag
+        value={getStatutLabel(rowData.statut)}
+        severity={getStatutSeverity(rowData.statut)}
+      />
+    );
+  };
+
+  const dateBodyTemplate = (rowData: TacheChantier) => {
+    return (
+      <div>
+        <div><strong>Début:</strong> {formatDate(rowData.dateDebut)}</div>
+        <div><strong>Fin:</strong> {formatDate(rowData.dateFin)}</div>
+      </div>
+    );
+  };
+
+  const responsableBodyTemplate = (rowData: TacheChantier) => {
+    return `${rowData.responsable?.prenom} ${rowData.responsable?.nom}`;
+  };
+
+  const equipeBodyTemplate = (rowData: TacheChantier) => {
+    return rowData.equipe?.nom || 'Non assignée';
+  };
+
+  const progressionBodyTemplate = (rowData: TacheChantier) => {
+    return (
+      <div className="flex align-items-center">
+        <div className="flex-1 mr-2">
+          <div className="surface-300 border-round" style={{ height: '8px' }}>
+            <div
+              className="bg-primary border-round"
+              style={{ height: '8px', width: `${rowData.progression}%` }}
+            ></div>
+          </div>
+        </div>
+        <span>{rowData.progression}%</span>
+      </div>
+    );
+  };
+
+  const actionsBodyTemplate = (rowData: TacheChantier) => {
+    return (
+      <div className="flex gap-2">
+        <Button
+          icon="pi pi-eye"
+          className="p-button-text p-button-sm"
+          tooltip="Voir les détails"
+        />
+        <Button
+          icon="pi pi-pencil"
+          className="p-button-text p-button-sm"
+          tooltip="Modifier"
+        />
+        <Button
+          icon="pi pi-trash"
+          className="p-button-text p-button-sm p-button-danger"
+          tooltip="Supprimer"
+        />
+      </div>
+    );
+  };
+
+  const customizedMarker = (item: TacheChantier) => {
+    return (
+      <span
+        className="flex w-2rem h-2rem align-items-center justify-content-center text-white border-circle z-1 shadow-1"
+        style={{ backgroundColor: item.statut === 'TERMINE' ? '#10b981' : '#3b82f6' }}
+      >
+        <i className={item.statut === 'TERMINE' ? 'pi pi-check' : 'pi pi-clock'}></i>
+      </span>
+    );
+  };
+
+  const customizedContent = (item: TacheChantier) => {
+    return (
+      <Card>
+        <div className="flex justify-content-between align-items-center mb-2">
+          <span className="font-bold">{item.nom}</span>
+          <Tag value={getStatutLabel(item.statut)} severity={getStatutSeverity(item.statut)} />
+        </div>
+        <p className="text-600 mb-2">{item.description}</p>
+        <div className="text-sm">
+          <div><strong>Responsable:</strong> {item.responsable?.prenom} {item.responsable?.nom}</div>
+          <div><strong>Équipe:</strong> {item.equipe?.nom || 'Non assignée'}</div>
+          <div><strong>Dates:</strong> {formatDate(item.dateDebut)} - {formatDate(item.dateFin)}</div>
+        </div>
+      </Card>
+    );
+  };
+
+  return (
+    <div className="grid">
+      <div className="col-12">
+        <div className="flex justify-content-between align-items-center mb-3">
+          <div className="flex align-items-center">
+            <Button
+              icon="pi pi-arrow-left"
+              className="p-button-text mr-2"
+              onClick={() => router.push(`/chantiers/${id}`)}
+              tooltip="Retour"
+            />
+            <h2 className="m-0">Planning du chantier</h2>
+          </div>
+          <div className="flex gap-2">
+            <Button
+              label="Vue Gantt"
+              icon="pi pi-chart-bar"
+              className="p-button-outlined"
+            />
+            <Button
+              label="Ajouter une tâche"
+              icon="pi pi-plus"
+              className="p-button-success"
+            />
+          </div>
+        </div>
+      </div>
+
+      {/* Calendrier */}
+      <div className="col-12 lg:col-4">
+        <Card title="Calendrier">
+          <Calendar
+            value={selectedDate}
+            onChange={(e) => setSelectedDate(e.value as Date)}
+            inline
+            showWeek
+          />
+
+          <div className="mt-3">
+            <h4>Légende</h4>
+            <div className="flex flex-column gap-2">
+              <div className="flex align-items-center">
+                <div className="w-1rem h-1rem bg-blue-500 border-round mr-2"></div>
+                <span>En cours</span>
+              </div>
+              <div className="flex align-items-center">
+                <div className="w-1rem h-1rem bg-green-500 border-round mr-2"></div>
+                <span>Terminé</span>
+              </div>
+              <div className="flex align-items-center">
+                <div className="w-1rem h-1rem bg-red-500 border-round mr-2"></div>
+                <span>En retard</span>
+              </div>
+              <div className="flex align-items-center">
+                <div className="w-1rem h-1rem bg-gray-500 border-round mr-2"></div>
+                <span>À faire</span>
+              </div>
+            </div>
+          </div>
+        </Card>
+      </div>
+
+      {/* Timeline */}
+      <div className="col-12 lg:col-8">
+        <Card title="Chronologie des tâches">
+          <Timeline
+            value={taches}
+            align="alternate"
+            className="customized-timeline"
+            marker={customizedMarker}
+            content={customizedContent}
+          />
+        </Card>
+      </div>
+
+      {/* Tableau des tâches */}
+      <div className="col-12">
+        <Card title="Liste des tâches">
+          <DataTable
+            value={taches}
+            loading={loading}
+            responsiveLayout="scroll"
+            paginator
+            rows={10}
+            emptyMessage="Aucune tâche planifiée"
+            sortField="dateDebut"
+            sortOrder={1}
+          >
+            <Column field="nom" header="Tâche" sortable filter />
+            <Column field="statut" header="Statut" body={statutBodyTemplate} sortable filter />
+            <Column header="Dates" body={dateBodyTemplate} sortable />
+            <Column header="Responsable" body={responsableBodyTemplate} sortable filter />
+            <Column header="Équipe" body={equipeBodyTemplate} sortable filter />
+            <Column header="Progression" body={progressionBodyTemplate} sortable />
+            <Column header="Actions" body={actionsBodyTemplate} />
+          </DataTable>
+        </Card>
+      </div>
+    </div>
+  );
+}