diff --git a/thanasoft-back/app/Http/Controllers/Api/ClientController.php b/thanasoft-back/app/Http/Controllers/Api/ClientController.php
new file mode 100644
index 0000000..0e78717
--- /dev/null
+++ b/thanasoft-back/app/Http/Controllers/Api/ClientController.php
@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreClientRequest;
+use App\Http\Requests\UpdateClientRequest;
+use App\Http\Resources\Client\ClientResource;
+use App\Repositories\ClientRepositoryInterface;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+use Illuminate\Support\Facades\Log;
+
+class ClientController extends Controller
+{
+    public function __construct(
+        private readonly ClientRepositoryInterface $clientRepository
+    ) {
+    }
+
+    /**
+     * Display a listing of clients.
+     */
+    public function index(): AnonymousResourceCollection|JsonResponse
+    {
+        try {
+            $clients = $this->clientRepository->all();
+            return ClientResource::collection($clients);
+        } catch (\Exception $e) {
+            Log::error('Error fetching clients: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération des clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Store a newly created client.
+     */
+    public function store(StoreClientRequest $request): ClientResource|JsonResponse
+    {
+        try {
+            $client = $this->clientRepository->create($request->validated());
+            return new ClientResource($client);
+        } catch (\Exception $e) {
+            Log::error('Error creating client: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la création du client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Display the specified client.
+     */
+    public function show(string $id): ClientResource|JsonResponse
+    {
+        try {
+            $client = $this->clientRepository->find($id);
+
+            if (!$client) {
+                return response()->json([
+                    'message' => 'Client non trouvé.',
+                ], 404);
+            }
+
+            return new ClientResource($client);
+        } catch (\Exception $e) {
+            Log::error('Error fetching client: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération du client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Update the specified client.
+     */
+    public function update(UpdateClientRequest $request, string $id): ClientResource|JsonResponse
+    {
+        try {
+            $updated = $this->clientRepository->update($id, $request->validated());
+
+            if (!$updated) {
+                return response()->json([
+                    'message' => 'Client non trouvé ou échec de la mise à jour.',
+                ], 404);
+            }
+
+            $client = $this->clientRepository->find($id);
+            return new ClientResource($client);
+        } catch (\Exception $e) {
+            Log::error('Error updating client: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_id' => $id,
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la mise à jour du client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Remove the specified client.
+     */
+    public function destroy(string $id): JsonResponse
+    {
+        try {
+            $deleted = $this->clientRepository->delete($id);
+
+            if (!$deleted) {
+                return response()->json([
+                    'message' => 'Client non trouvé ou échec de la suppression.',
+                ], 404);
+            }
+
+            return response()->json([
+                'message' => 'Client supprimé avec succès.',
+            ], 200);
+        } catch (\Exception $e) {
+            Log::error('Error deleting client: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la suppression du client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+}
diff --git a/thanasoft-back/app/Http/Controllers/Api/ClientGroupController.php b/thanasoft-back/app/Http/Controllers/Api/ClientGroupController.php
new file mode 100644
index 0000000..8f34a93
--- /dev/null
+++ b/thanasoft-back/app/Http/Controllers/Api/ClientGroupController.php
@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreClientGroupRequest;
+use App\Http\Requests\UpdateClientGroupRequest;
+use App\Http\Resources\Client\ClientGroupResource;
+use App\Repositories\ClientGroupRepositoryInterface;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+use Illuminate\Support\Facades\Log;
+
+class ClientGroupController extends Controller
+{
+    public function __construct(
+        private readonly ClientGroupRepositoryInterface $clientGroupRepository
+    ) {
+    }
+
+    /**
+     * Display a listing of client groups.
+     */
+    public function index(): AnonymousResourceCollection|JsonResponse
+    {
+        try {
+            $clientGroups = $this->clientGroupRepository->all();
+            return ClientGroupResource::collection($clientGroups);
+        } catch (\Exception $e) {
+            Log::error('Error fetching client groups: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération des groupes de clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Store a newly created client group.
+     */
+    public function store(StoreClientGroupRequest $request): ClientGroupResource|JsonResponse
+    {
+        try {
+            $clientGroup = $this->clientGroupRepository->create($request->validated());
+            return new ClientGroupResource($clientGroup);
+        } catch (\Exception $e) {
+            Log::error('Error creating client group: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la création du groupe de clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Display the specified client group.
+     */
+    public function show(string $id): ClientGroupResource|JsonResponse
+    {
+        try {
+            $clientGroup = $this->clientGroupRepository->find($id);
+
+            if (!$clientGroup) {
+                return response()->json([
+                    'message' => 'Groupe de clients non trouvé.',
+                ], 404);
+            }
+
+            return new ClientGroupResource($clientGroup);
+        } catch (\Exception $e) {
+            Log::error('Error fetching client group: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_group_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération du groupe de clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Update the specified client group.
+     */
+    public function update(UpdateClientGroupRequest $request, string $id): ClientGroupResource|JsonResponse
+    {
+        try {
+            $updated = $this->clientGroupRepository->update($id, $request->validated());
+
+            if (!$updated) {
+                return response()->json([
+                    'message' => 'Groupe de clients non trouvé ou échec de la mise à jour.',
+                ], 404);
+            }
+
+            $clientGroup = $this->clientGroupRepository->find($id);
+            return new ClientGroupResource($clientGroup);
+        } catch (\Exception $e) {
+            Log::error('Error updating client group: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_group_id' => $id,
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la mise à jour du groupe de clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Remove the specified client group.
+     */
+    public function destroy(string $id): JsonResponse
+    {
+        try {
+            $deleted = $this->clientGroupRepository->delete($id);
+
+            if (!$deleted) {
+                return response()->json([
+                    'message' => 'Groupe de clients non trouvé ou échec de la suppression.',
+                ], 404);
+            }
+
+            return response()->json([
+                'message' => 'Groupe de clients supprimé avec succès.',
+            ], 200);
+        } catch (\Exception $e) {
+            Log::error('Error deleting client group: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_group_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la suppression du groupe de clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+}
diff --git a/thanasoft-back/app/Http/Controllers/Api/ClientLocationController.php b/thanasoft-back/app/Http/Controllers/Api/ClientLocationController.php
new file mode 100644
index 0000000..f10614f
--- /dev/null
+++ b/thanasoft-back/app/Http/Controllers/Api/ClientLocationController.php
@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreClientLocationRequest;
+use App\Http\Requests\UpdateClientLocationRequest;
+use App\Http\Resources\Client\ClientLocationResource;
+use App\Repositories\ClientLocationRepositoryInterface;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+use Illuminate\Support\Facades\Log;
+
+class ClientLocationController extends Controller
+{
+    public function __construct(
+        private readonly ClientLocationRepositoryInterface $clientLocationRepository
+    ) {
+    }
+
+    /**
+     * Display a listing of client locations.
+     */
+    public function index(): AnonymousResourceCollection|JsonResponse
+    {
+        try {
+            $clientLocations = $this->clientLocationRepository->all();
+            return ClientLocationResource::collection($clientLocations);
+        } catch (\Exception $e) {
+            Log::error('Error fetching client locations: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération des lieux clients.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Store a newly created client location.
+     */
+    public function store(StoreClientLocationRequest $request): ClientLocationResource|JsonResponse
+    {
+        try {
+            $clientLocation = $this->clientLocationRepository->create($request->validated());
+            return new ClientLocationResource($clientLocation);
+        } catch (\Exception $e) {
+            Log::error('Error creating client location: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la création du lieu client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Display the specified client location.
+     */
+    public function show(string $id): ClientLocationResource|JsonResponse
+    {
+        try {
+            $clientLocation = $this->clientLocationRepository->find($id);
+
+            if (!$clientLocation) {
+                return response()->json([
+                    'message' => 'Lieu client non trouvé.',
+                ], 404);
+            }
+
+            return new ClientLocationResource($clientLocation);
+        } catch (\Exception $e) {
+            Log::error('Error fetching client location: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_location_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération du lieu client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Update the specified client location.
+     */
+    public function update(UpdateClientLocationRequest $request, string $id): ClientLocationResource|JsonResponse
+    {
+        try {
+            $updated = $this->clientLocationRepository->update($id, $request->validated());
+
+            if (!$updated) {
+                return response()->json([
+                    'message' => 'Lieu client non trouvé ou échec de la mise à jour.',
+                ], 404);
+            }
+
+            $clientLocation = $this->clientLocationRepository->find($id);
+            return new ClientLocationResource($clientLocation);
+        } catch (\Exception $e) {
+            Log::error('Error updating client location: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_location_id' => $id,
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la mise à jour du lieu client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Remove the specified client location.
+     */
+    public function destroy(string $id): JsonResponse
+    {
+        try {
+            $deleted = $this->clientLocationRepository->delete($id);
+
+            if (!$deleted) {
+                return response()->json([
+                    'message' => 'Lieu client non trouvé ou échec de la suppression.',
+                ], 404);
+            }
+
+            return response()->json([
+                'message' => 'Lieu client supprimé avec succès.',
+            ], 200);
+        } catch (\Exception $e) {
+            Log::error('Error deleting client location: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'client_location_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la suppression du lieu client.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+}
diff --git a/thanasoft-back/app/Http/Controllers/Api/ContactController.php b/thanasoft-back/app/Http/Controllers/Api/ContactController.php
new file mode 100644
index 0000000..cb9e4ed
--- /dev/null
+++ b/thanasoft-back/app/Http/Controllers/Api/ContactController.php
@@ -0,0 +1,156 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Http\Controllers\Api;
+
+use App\Http\Controllers\Controller;
+use App\Http\Requests\StoreContactRequest;
+use App\Http\Requests\UpdateContactRequest;
+use App\Http\Resources\Contact\ContactResource;
+use App\Repositories\ContactRepositoryInterface;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
+use Illuminate\Support\Facades\Log;
+
+class ContactController extends Controller
+{
+    public function __construct(
+        private readonly ContactRepositoryInterface $contactRepository
+    ) {
+    }
+
+    /**
+     * Display a listing of contacts.
+     */
+    public function index(): AnonymousResourceCollection|JsonResponse
+    {
+        try {
+            $contacts = $this->contactRepository->all();
+            return ContactResource::collection($contacts);
+        } catch (\Exception $e) {
+            Log::error('Error fetching contacts: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération des contacts.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Store a newly created contact.
+     */
+    public function store(StoreContactRequest $request): ContactResource|JsonResponse
+    {
+        try {
+            $contact = $this->contactRepository->create($request->validated());
+            return new ContactResource($contact);
+        } catch (\Exception $e) {
+            Log::error('Error creating contact: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la création du contact.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Display the specified contact.
+     */
+    public function show(string $id): ContactResource|JsonResponse
+    {
+        try {
+            $contact = $this->contactRepository->find($id);
+
+            if (!$contact) {
+                return response()->json([
+                    'message' => 'Contact non trouvé.',
+                ], 404);
+            }
+
+            return new ContactResource($contact);
+        } catch (\Exception $e) {
+            Log::error('Error fetching contact: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'contact_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la récupération du contact.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Update the specified contact.
+     */
+    public function update(UpdateContactRequest $request, string $id): ContactResource|JsonResponse
+    {
+        try {
+            $updated = $this->contactRepository->update($id, $request->validated());
+
+            if (!$updated) {
+                return response()->json([
+                    'message' => 'Contact non trouvé ou échec de la mise à jour.',
+                ], 404);
+            }
+
+            $contact = $this->contactRepository->find($id);
+            return new ContactResource($contact);
+        } catch (\Exception $e) {
+            Log::error('Error updating contact: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'contact_id' => $id,
+                'data' => $request->validated(),
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la mise à jour du contact.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+
+    /**
+     * Remove the specified contact.
+     */
+    public function destroy(string $id): JsonResponse
+    {
+        try {
+            $deleted = $this->contactRepository->delete($id);
+
+            if (!$deleted) {
+                return response()->json([
+                    'message' => 'Contact non trouvé ou échec de la suppression.',
+                ], 404);
+            }
+
+            return response()->json([
+                'message' => 'Contact supprimé avec succès.',
+            ], 200);
+        } catch (\Exception $e) {
+            Log::error('Error deleting contact: ' . $e->getMessage(), [
+                'exception' => $e,
+                'trace' => $e->getTraceAsString(),
+                'contact_id' => $id,
+            ]);
+
+            return response()->json([
+                'message' => 'Une erreur est survenue lors de la suppression du contact.',
+                'error' => config('app.debug') ? $e->getMessage() : null,
+            ], 500);
+        }
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/StoreClientGroupRequest.php b/thanasoft-back/app/Http/Requests/StoreClientGroupRequest.php
new file mode 100644
index 0000000..01bc264
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/StoreClientGroupRequest.php
@@ -0,0 +1,40 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreClientGroupRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+         return [
+            'name' => 'required|string|max:191|unique:client_groups,name',
+            'description' => 'nullable|string',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'name.required' => 'Le nom du groupe est obligatoire.',
+            'name.string' => 'Le nom du groupe doit être une chaîne de caractères.',
+            'name.max' => 'Le nom du groupe ne peut pas dépasser 191 caractères.',
+            'name.unique' => 'Un groupe avec ce nom existe déjà.',
+            'description.string' => 'La description doit être une chaîne de caractères.',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/StoreClientLocationRequest.php b/thanasoft-back/app/Http/Requests/StoreClientLocationRequest.php
new file mode 100644
index 0000000..88cff52
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/StoreClientLocationRequest.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreClientLocationRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+       return [
+            'client_id' => 'required|exists:clients,id',
+            'name' => 'nullable|string|max:191',
+            'address_line1' => 'nullable|string|max:255',
+            'address_line2' => 'nullable|string|max:255',
+            'postal_code' => 'nullable|string|max:20',
+            'city' => 'nullable|string|max:191',
+            'country_code' => 'nullable|string|size:2',
+            'gps_lat' => 'nullable|numeric|between:-90,90',
+            'gps_lng' => 'nullable|numeric|between:-180,180',
+            'is_default' => 'boolean',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'client_id.required' => 'Le client est obligatoire.',
+            'client_id.exists' => 'Le client sélectionné n\'existe pas.',
+            'name.max' => 'Le nom ne peut pas dépasser 191 caractères.',
+            'address_line1.max' => 'L\'adresse ne peut pas dépasser 255 caractères.',
+            'address_line2.max' => 'Le complément d\'adresse ne peut pas dépasser 255 caractères.',
+            'postal_code.max' => 'Le code postal ne peut pas dépasser 20 caractères.',
+            'city.max' => 'La ville ne peut pas dépasser 191 caractères.',
+            'country_code.size' => 'Le code pays doit contenir 2 caractères.',
+            'gps_lat.numeric' => 'La latitude doit être un nombre.',
+            'gps_lat.between' => 'La latitude doit être comprise entre -90 et 90.',
+            'gps_lng.numeric' => 'La longitude doit être un nombre.',
+            'gps_lng.between' => 'La longitude doit être comprise entre -180 et 180.',
+            'is_default.boolean' => 'Le statut par défaut doit être vrai ou faux.',
+        ];
+    }
+
+    public function withValidator($validator)
+    {
+        $validator->after(function ($validator) {
+            if (empty($this->address_line1) && empty($this->postal_code) && empty($this->city)) {
+                $validator->errors()->add(
+                    'general',
+                    'Au moins un champ d\'adresse (adresse, code postal ou ville) doit être renseigné.'
+                );
+            }
+        });
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/StoreClientRequest.php b/thanasoft-back/app/Http/Requests/StoreClientRequest.php
new file mode 100644
index 0000000..882e59a
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/StoreClientRequest.php
@@ -0,0 +1,70 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreClientRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+
+            'type' => 'required|in:pompes_funebres,famille,entreprise,collectivite,autre',
+            'name' => 'required|string|max:255',
+            'vat_number' => 'nullable|string|max:32',
+            'siret' => 'nullable|string|max:20',
+            'email' => 'nullable|email|max:191',
+            'phone' => 'nullable|string|max:50',
+            'billing_address_line1' => 'nullable|string|max:255',
+            'billing_address_line2' => 'nullable|string|max:255',
+            'billing_postal_code' => 'nullable|string|max:20',
+            'billing_city' => 'nullable|string|max:191',
+            'billing_country_code' => 'nullable|string|size:2',
+            'group_id' => 'nullable|exists:client_groups,id',
+            'notes' => 'nullable|string',
+            'is_active' => 'boolean',
+            'default_tva_rate_id' => 'nullable|exists:tva_rates,id',
+        ];
+    }
+
+
+    public function messages(): array
+    {
+        return [
+            'company_id.required' => 'La société est obligatoire.',
+            'company_id.exists' => 'La société sélectionnée n\'existe pas.',
+            'type.required' => 'Le type de client est obligatoire.',
+            'type.in' => 'Le type de client sélectionné est invalide.',
+            'name.required' => 'Le nom du client est obligatoire.',
+            'name.string' => 'Le nom du client doit être une chaîne de caractères.',
+            'name.max' => 'Le nom du client ne peut pas dépasser 255 caractères.',
+            'vat_number.max' => 'Le numéro de TVA ne peut pas dépasser 32 caractères.',
+            'siret.max' => 'Le SIRET ne peut pas dépasser 20 caractères.',
+            'email.email' => 'L\'adresse email doit être valide.',
+            'email.max' => 'L\'adresse email ne peut pas dépasser 191 caractères.',
+            'phone.max' => 'Le téléphone ne peut pas dépasser 50 caractères.',
+            'billing_address_line1.max' => 'L\'adresse ne peut pas dépasser 255 caractères.',
+            'billing_address_line2.max' => 'Le complément d\'adresse ne peut pas dépasser 255 caractères.',
+            'billing_postal_code.max' => 'Le code postal ne peut pas dépasser 20 caractères.',
+            'billing_city.max' => 'La ville ne peut pas dépasser 191 caractères.',
+            'billing_country_code.size' => 'Le code pays doit contenir 2 caractères.',
+            'group_id.exists' => 'Le groupe de clients sélectionné n\'existe pas.',
+            'is_active.boolean' => 'Le statut actif doit être vrai ou faux.',
+            'default_tva_rate_id.exists' => 'Le taux de TVA sélectionné n\'existe pas.',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/StoreContactRequest.php b/thanasoft-back/app/Http/Requests/StoreContactRequest.php
new file mode 100644
index 0000000..129f5a9
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/StoreContactRequest.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class StoreContactRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return false;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            //
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/UpdateClientGroupRequest.php b/thanasoft-back/app/Http/Requests/UpdateClientGroupRequest.php
new file mode 100644
index 0000000..18c31b0
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/UpdateClientGroupRequest.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class UpdateClientGroupRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        $clientGroupId = $this->route('client_group') ? $this->route('client_group')->id : $this->route('id');
+
+        return [
+            'name' => [
+                'required',
+                'string',
+                'max:191',
+                Rule::unique('client_groups', 'name')->ignore($clientGroupId)
+            ],
+            'description' => 'nullable|string',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'name.required' => 'Le nom du groupe est obligatoire.',
+            'name.string' => 'Le nom du groupe doit être une chaîne de caractères.',
+            'name.max' => 'Le nom du groupe ne peut pas dépasser 191 caractères.',
+            'name.unique' => 'Un groupe avec ce nom existe déjà.',
+            'description.string' => 'La description doit être une chaîne de caractères.',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/UpdateClientLocationRequest.php b/thanasoft-back/app/Http/Requests/UpdateClientLocationRequest.php
new file mode 100644
index 0000000..66606cf
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/UpdateClientLocationRequest.php
@@ -0,0 +1,56 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateClientLocationRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            'client_id' => 'required|exists:clients,id',
+            'name' => 'nullable|string|max:191',
+            'address_line1' => 'nullable|string|max:255',
+            'address_line2' => 'nullable|string|max:255',
+            'postal_code' => 'nullable|string|max:20',
+            'city' => 'nullable|string|max:191',
+            'country_code' => 'nullable|string|size:2',
+            'gps_lat' => 'nullable|numeric|between:-90,90',
+            'gps_lng' => 'nullable|numeric|between:-180,180',
+            'is_default' => 'boolean',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'client_id.required' => 'Le client est obligatoire.',
+            'client_id.exists' => 'Le client sélectionné n\'existe pas.',
+            'name.max' => 'Le nom ne peut pas dépasser 191 caractères.',
+            'address_line1.max' => 'L\'adresse ne peut pas dépasser 255 caractères.',
+            'address_line2.max' => 'Le complément d\'adresse ne peut pas dépasser 255 caractères.',
+            'postal_code.max' => 'Le code postal ne peut pas dépasser 20 caractères.',
+            'city.max' => 'La ville ne peut pas dépasser 191 caractères.',
+            'country_code.size' => 'Le code pays doit contenir 2 caractères.',
+            'gps_lat.numeric' => 'La latitude doit être un nombre.',
+            'gps_lat.between' => 'La latitude doit être comprise entre -90 et 90.',
+            'gps_lng.numeric' => 'La longitude doit être un nombre.',
+            'gps_lng.between' => 'La longitude doit être comprise entre -180 et 180.',
+            'is_default.boolean' => 'Le statut par défaut doit être vrai ou faux.',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/UpdateClientRequest.php b/thanasoft-back/app/Http/Requests/UpdateClientRequest.php
new file mode 100644
index 0000000..1c08317
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/UpdateClientRequest.php
@@ -0,0 +1,68 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateClientRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+         return [
+            'type' => 'required|in:pompes_funebres,famille,entreprise,collectivite,autre',
+            'name' => 'required|string|max:255',
+            'vat_number' => 'nullable|string|max:32',
+            'siret' => 'nullable|string|max:20',
+            'email' => 'nullable|email|max:191',
+            'phone' => 'nullable|string|max:50',
+            'billing_address_line1' => 'nullable|string|max:255',
+            'billing_address_line2' => 'nullable|string|max:255',
+            'billing_postal_code' => 'nullable|string|max:20',
+            'billing_city' => 'nullable|string|max:191',
+            'billing_country_code' => 'nullable|string|size:2',
+            'group_id' => 'nullable|exists:client_groups,id',
+            'notes' => 'nullable|string',
+            'is_active' => 'boolean',
+            'default_tva_rate_id' => 'nullable|exists:tva_rates,id',
+        ];
+    }
+
+    public function messages(): array
+    {
+        return [
+            'company_id.required' => 'La société est obligatoire.',
+            'company_id.exists' => 'La société sélectionnée n\'existe pas.',
+            'type.required' => 'Le type de client est obligatoire.',
+            'type.in' => 'Le type de client sélectionné est invalide.',
+            'name.required' => 'Le nom du client est obligatoire.',
+            'name.string' => 'Le nom du client doit être une chaîne de caractères.',
+            'name.max' => 'Le nom du client ne peut pas dépasser 255 caractères.',
+            'vat_number.max' => 'Le numéro de TVA ne peut pas dépasser 32 caractères.',
+            'siret.max' => 'Le SIRET ne peut pas dépasser 20 caractères.',
+            'email.email' => 'L\'adresse email doit être valide.',
+            'email.max' => 'L\'adresse email ne peut pas dépasser 191 caractères.',
+            'phone.max' => 'Le téléphone ne peut pas dépasser 50 caractères.',
+            'billing_address_line1.max' => 'L\'adresse ne peut pas dépasser 255 caractères.',
+            'billing_address_line2.max' => 'Le complément d\'adresse ne peut pas dépasser 255 caractères.',
+            'billing_postal_code.max' => 'Le code postal ne peut pas dépasser 20 caractères.',
+            'billing_city.max' => 'La ville ne peut pas dépasser 191 caractères.',
+            'billing_country_code.size' => 'Le code pays doit contenir 2 caractères.',
+            'group_id.exists' => 'Le groupe de clients sélectionné n\'existe pas.',
+            'is_active.boolean' => 'Le statut actif doit être vrai ou faux.',
+            'default_tva_rate_id.exists' => 'Le taux de TVA sélectionné n\'existe pas.',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Requests/UpdateContactRequest.php b/thanasoft-back/app/Http/Requests/UpdateContactRequest.php
new file mode 100644
index 0000000..204b7e5
--- /dev/null
+++ b/thanasoft-back/app/Http/Requests/UpdateContactRequest.php
@@ -0,0 +1,28 @@
+<?php
+
+namespace App\Http\Requests;
+
+use Illuminate\Foundation\Http\FormRequest;
+
+class UpdateContactRequest extends FormRequest
+{
+    /**
+     * Determine if the user is authorized to make this request.
+     */
+    public function authorize(): bool
+    {
+        return false;
+    }
+
+    /**
+     * Get the validation rules that apply to the request.
+     *
+     * @return array<string, \Illuminate\Contracts\Validation\ValidationRule|array<mixed>|string>
+     */
+    public function rules(): array
+    {
+        return [
+            //
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientCollection.php b/thanasoft-back/app/Http/Resources/Client/ClientCollection.php
new file mode 100644
index 0000000..7b2ced8
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientCollection.php
@@ -0,0 +1,48 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\ResourceCollection;
+
+class ClientCollection extends ResourceCollection
+{
+    /**
+     * Transform the resource collection into an array.
+     *
+     * @return array<int|string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'data' => $this->collection,
+            'meta' => [
+                'total' => $this->total(),
+                'per_page' => $this->perPage(),
+                'current_page' => $this->currentPage(),
+                'last_page' => $this->lastPage(),
+                'from' => $this->firstItem(),
+                'to' => $this->lastItem(),
+                'stats' => [
+                    'active' => $this->collection->where('is_active', true)->count(),
+                    'inactive' => $this->collection->where('is_active', false)->count(),
+                    'by_type' => $this->collection->groupBy('type')->map->count(),
+                ],
+            ],
+            'links' => [
+                'first' => $this->url(1),
+                'last' => $this->url($this->lastPage()),
+                'prev' => $this->previousPageUrl(),
+                'next' => $this->nextPageUrl(),
+            ],
+        ];
+    }
+
+    public function with(Request $request): array
+    {
+        return [
+            'status' => 'success',
+            'message' => 'Clients récupérés avec succès',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientGroupCollection.php b/thanasoft-back/app/Http/Resources/Client/ClientGroupCollection.php
new file mode 100644
index 0000000..b53e721
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientGroupCollection.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\ResourceCollection;
+
+class ClientGroupCollection extends ResourceCollection
+{
+    /**
+     * Transform the resource collection into an array.
+     *
+     * @return array<int|string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'data' => $this->collection,
+            'meta' => [
+                'total' => $this->total(),
+                'per_page' => $this->perPage(),
+                'current_page' => $this->currentPage(),
+                'last_page' => $this->lastPage(),
+                'from' => $this->firstItem(),
+                'to' => $this->lastItem(),
+            ],
+            'links' => [
+                'first' => $this->url(1),
+                'last' => $this->url($this->lastPage()),
+                'prev' => $this->previousPageUrl(),
+                'next' => $this->nextPageUrl(),
+            ],
+        ];
+    }
+
+    public function with(Request $request): array
+    {
+        return [
+            'status' => 'success',
+            'message' => 'Groupes de clients récupérés avec succès',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientGroupResource.php b/thanasoft-back/app/Http/Resources/Client/ClientGroupResource.php
new file mode 100644
index 0000000..c4e85cb
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientGroupResource.php
@@ -0,0 +1,25 @@
+<?php
+
+namespace App\Http\Resources\Client;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ClientGroupResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            'name' => $this->name,
+            'description' => $this->description ?? null,
+            'created_at' => $this->created_at?->format('Y-m-d H:i:s'),
+            'updated_at' => $this->updated_at?->format('Y-m-d H:i:s'),
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientLocationCollection.php b/thanasoft-back/app/Http/Resources/Client/ClientLocationCollection.php
new file mode 100644
index 0000000..aa6fdd3
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientLocationCollection.php
@@ -0,0 +1,47 @@
+<?php
+
+namespace App\Http\Resources\Client;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\ResourceCollection;
+
+class ClientLocationCollection extends ResourceCollection
+{
+    /**
+     * Transform the resource collection into an array.
+     *
+     * @return array<int|string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'data' => $this->collection,
+            'meta' => [
+                'total' => $this->total(),
+                'per_page' => $this->perPage(),
+                'current_page' => $this->currentPage(),
+                'last_page' => $this->lastPage(),
+                'from' => $this->firstItem(),
+                'to' => $this->lastItem(),
+                'stats' => [
+                    'default_locations' => $this->collection->where('is_default', true)->count(),
+                    'with_gps' => $this->collection->filter(fn($location) => $location->gps_lat && $location->gps_lng)->count(),
+                ],
+            ],
+            'links' => [
+                'first' => $this->url(1),
+                'last' => $this->url($this->lastPage()),
+                'prev' => $this->previousPageUrl(),
+                'next' => $this->nextPageUrl(),
+            ],
+        ];
+    }
+
+    public function with(Request $request): array
+    {
+        return [
+            'status' => 'success',
+            'message' => 'Lieux clients récupérés avec succès',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientLocationResource.php b/thanasoft-back/app/Http/Resources/Client/ClientLocationResource.php
new file mode 100644
index 0000000..f7ba37c
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientLocationResource.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Http\Resources\Client;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ClientLocationResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return parent::toArray($request);
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Client/ClientResource.php b/thanasoft-back/app/Http/Resources/Client/ClientResource.php
new file mode 100644
index 0000000..06f2b8d
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Client/ClientResource.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace App\Http\Resources\Client;
+
+use App\Http\Resources\Contact\ContactResource;
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ClientResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'id' => $this->id,
+            //'company_id' => $this->company_id,
+            'type' => $this->type,
+            'type_label' => $this->getTypeLabel(),
+            'name' => $this->name,
+            'vat_number' => $this->vat_number,
+            'siret' => $this->siret,
+            'email' => $this->email,
+            'phone' => $this->phone,
+            'billing_address' => [
+                'line1' => $this->billing_address_line1,
+                'line2' => $this->billing_address_line2,
+                'postal_code' => $this->billing_postal_code,
+                'city' => $this->billing_city,
+                'country_code' => $this->billing_country_code,
+                'full_address' => $this->billing_address,
+            ],
+            'group_id' => $this->group_id,
+            'notes' => $this->notes,
+            'is_active' => $this->is_active,
+            // 'default_tva_rate_id' => $this->default_tva_rate_id,
+            'created_at' => $this->created_at?->format('Y-m-d H:i:s'),
+            'updated_at' => $this->updated_at?->format('Y-m-d H:i:s'),
+
+            // Counts
+            'contacts_count' => $this->whenCounted('contacts'),
+            'locations_count' => $this->whenCounted('locations'),
+            // 'interventions_count' => $this->whenCounted('interventions'),
+            // 'quotes_count' => $this->whenCounted('quotes'),
+            // 'invoices_count' => $this->whenCounted('invoices'),
+
+            // Relations
+            // 'company' => new CompanyResource($this->whenLoaded('company')),
+            'group' => new ClientGroupResource($this->whenLoaded('group')),
+            // 'default_tva_rate' => new TvaRateResource($this->whenLoaded('defaultTvaRate')),
+            'contacts' => ContactResource::collection($this->whenLoaded('contacts')),
+            'locations' => ClientLocationResource::collection($this->whenLoaded('locations')),
+            // 'price_lists' => PriceListResource::collection($this->whenLoaded('priceLists')),
+            // 'interventions' => InterventionResource::collection($this->whenLoaded('interventions')),
+            // 'quotes' => QuoteResource::collection($this->whenLoaded('quotes')),
+            // 'invoices' => InvoiceResource::collection($this->whenLoaded('invoices')),
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Contact/ContactCollection.php b/thanasoft-back/app/Http/Resources/Contact/ContactCollection.php
new file mode 100644
index 0000000..dd3b441
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Contact/ContactCollection.php
@@ -0,0 +1,43 @@
+<?php
+
+namespace App\Http\Resources\Contact;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\ResourceCollection;
+
+class ContactCollection extends ResourceCollection
+{
+    /**
+     * Transform the resource collection into an array.
+     *
+     * @return array<int|string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return [
+            'data' => $this->collection,
+            'meta' => [
+                'total' => $this->total(),
+                'per_page' => $this->perPage(),
+                'current_page' => $this->currentPage(),
+                'last_page' => $this->lastPage(),
+                'from' => $this->firstItem(),
+                'to' => $this->lastItem(),
+            ],
+            'links' => [
+                'first' => $this->url(1),
+                'last' => $this->url($this->lastPage()),
+                'prev' => $this->previousPageUrl(),
+                'next' => $this->nextPageUrl(),
+            ],
+        ];
+    }
+
+    public function with(Request $request): array
+    {
+        return [
+            'status' => 'success',
+            'message' => 'Contacts récupérés avec succès',
+        ];
+    }
+}
diff --git a/thanasoft-back/app/Http/Resources/Contact/ContactResource.php b/thanasoft-back/app/Http/Resources/Contact/ContactResource.php
new file mode 100644
index 0000000..60f1ac4
--- /dev/null
+++ b/thanasoft-back/app/Http/Resources/Contact/ContactResource.php
@@ -0,0 +1,19 @@
+<?php
+
+namespace App\Http\Resources\Contact;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class ContactResource extends JsonResource
+{
+    /**
+     * Transform the resource into an array.
+     *
+     * @return array<string, mixed>
+     */
+    public function toArray(Request $request): array
+    {
+        return parent::toArray($request);
+    }
+}
diff --git a/thanasoft-back/app/Models/Client.php b/thanasoft-back/app/Models/Client.php
new file mode 100644
index 0000000..0f66ffd
--- /dev/null
+++ b/thanasoft-back/app/Models/Client.php
@@ -0,0 +1,60 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Client extends Model
+{
+    protected $fillable = [
+        'type',
+        'name',
+        'vat_number',
+        'siret',
+        'email',
+        'phone',
+        'billing_address_line1',
+        'billing_address_line2',
+        'billing_postal_code',
+        'billing_city',
+        'billing_country_code',
+        'group_id',
+        'notes',
+        'is_active',
+        'default_tva_rate_id',
+    ];
+
+    protected $casts = [
+        'is_active' => 'boolean',
+    ];
+
+    /**
+     * Get the human-readable label for the client type.
+     */
+    public function getTypeLabel(): string
+    {
+        return match($this->type) {
+            'pompes_funebres' => 'Pompes funèbres',
+            'famille' => 'Famille',
+            'entreprise' => 'Entreprise',
+            'collectivite' => 'Collectivité',
+            'autre' => 'Autre',
+            default => $this->type,
+        };
+    }
+
+    /**
+     * Get the full billing address as a string.
+     */
+    public function getBillingAddressAttribute(): ?string
+    {
+        $parts = array_filter([
+            $this->billing_address_line1,
+            $this->billing_address_line2,
+            $this->billing_postal_code ? $this->billing_postal_code . ' ' . $this->billing_city : $this->billing_city,
+            $this->billing_country_code,
+        ]);
+
+        return !empty($parts) ? implode(', ', $parts) : null;
+    }
+}
diff --git a/thanasoft-back/app/Models/ClientContact.php b/thanasoft-back/app/Models/ClientContact.php
new file mode 100644
index 0000000..20b6cc0
--- /dev/null
+++ b/thanasoft-back/app/Models/ClientContact.php
@@ -0,0 +1,10 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ClientContact extends Model
+{
+    //
+}
diff --git a/thanasoft-back/app/Models/ClientGroup.php b/thanasoft-back/app/Models/ClientGroup.php
new file mode 100644
index 0000000..3cc69a8
--- /dev/null
+++ b/thanasoft-back/app/Models/ClientGroup.php
@@ -0,0 +1,13 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ClientGroup extends Model
+{
+    protected $fillable = [
+        'name',
+        'description',
+    ];
+}
diff --git a/thanasoft-back/app/Models/ClientLocation.php b/thanasoft-back/app/Models/ClientLocation.php
new file mode 100644
index 0000000..498edb1
--- /dev/null
+++ b/thanasoft-back/app/Models/ClientLocation.php
@@ -0,0 +1,27 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class ClientLocation extends Model
+{
+    protected $fillable = [
+        'client_id',
+        'name',
+        'address_line1',
+        'address_line2',
+        'postal_code',
+        'city',
+        'country_code',
+        'gps_lat',
+        'gps_lng',
+        'is_default',
+    ];
+
+    protected $casts = [
+        'is_default' => 'boolean',
+        'gps_lat' => 'decimal:8',
+        'gps_lng' => 'decimal:8',
+    ];
+}
diff --git a/thanasoft-back/app/Models/Contact.php b/thanasoft-back/app/Models/Contact.php
new file mode 100644
index 0000000..11a03fa
--- /dev/null
+++ b/thanasoft-back/app/Models/Contact.php
@@ -0,0 +1,23 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Contact extends Model
+{
+    protected $fillable = [
+        'first_name',
+        'last_name',
+        'email',
+        'phone',
+        'mobile',
+        'position',
+        'notes',
+        'is_primary',
+    ];
+
+    protected $casts = [
+        'is_primary' => 'boolean',
+    ];
+}
diff --git a/thanasoft-back/app/Providers/AppServiceProvider.php b/thanasoft-back/app/Providers/AppServiceProvider.php
index 452e6b6..8b54e4a 100644
--- a/thanasoft-back/app/Providers/AppServiceProvider.php
+++ b/thanasoft-back/app/Providers/AppServiceProvider.php
@@ -11,7 +11,26 @@ class AppServiceProvider extends ServiceProvider
      */
     public function register(): void
     {
-        //
+        // Repository interface to implementation bindings
+        $this->app->bind(\App\Repositories\ClientRepositoryInterface::class, function ($app) {
+            return new \App\Repositories\ClientRepository($app->make(\App\Models\Client::class));
+        });
+
+        $this->app->bind(\App\Repositories\ClientGroupRepositoryInterface::class, function ($app) {
+            return new \App\Repositories\ClientGroupRepository($app->make(\App\Models\ClientGroup::class));
+        });
+
+        $this->app->bind(\App\Repositories\ClientContactRepositoryInterface::class, function ($app) {
+            return new \App\Repositories\ClientContactRepository($app->make(\App\Models\ClientContact::class));
+        });
+
+        $this->app->bind(\App\Repositories\ContactRepositoryInterface::class, function ($app) {
+            return new \App\Repositories\ContactRepository($app->make(\App\Models\Contact::class));
+        });
+
+        $this->app->bind(\App\Repositories\ClientLocationRepositoryInterface::class, function ($app) {
+            return new \App\Repositories\ClientLocationRepository($app->make(\App\Models\ClientLocation::class));
+        });
     }
 
     /**
diff --git a/thanasoft-back/app/Repositories/BaseRepository.php b/thanasoft-back/app/Repositories/BaseRepository.php
new file mode 100644
index 0000000..0d22279
--- /dev/null
+++ b/thanasoft-back/app/Repositories/BaseRepository.php
@@ -0,0 +1,72 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Collection;
+
+/**
+ * Base repository implementation using Eloquent models.
+ */
+class BaseRepository implements BaseRepositoryInterface
+{
+    public function __construct(protected Model $model)
+    {
+    }
+
+    /**
+     * @param array<int, string> $columns
+     * @return Collection<int, Model>
+     */
+    public function all(array $columns = ['*']): Collection
+    {
+        return $this->model->newQuery()->get($columns);
+    }
+
+    /**
+     * @param int|string $id
+     * @param array<int, string> $columns
+     */
+    public function find(int|string $id, array $columns = ['*']): ?Model
+    {
+        return $this->model->newQuery()->find($id, $columns);
+    }
+
+    /**
+     * @param array<string, mixed> $attributes
+     */
+    public function create(array $attributes): Model
+    {
+        // Uses mass assignment; ensure $fillable is set on the model
+        return $this->model->newQuery()->create($attributes);
+    }
+
+    /**
+     * @param int|string $id
+     * @param array<string, mixed> $attributes
+     */
+    public function update(int|string $id, array $attributes): bool
+    {
+        $instance = $this->find($id);
+        if (! $instance) {
+            return false;
+        }
+
+        return $instance->fill($attributes)->save();
+    }
+
+    /**
+     * @param int|string $id
+     */
+    public function delete(int|string $id): bool
+    {
+        $instance = $this->find($id);
+        if (! $instance) {
+            return false;
+        }
+
+        return (bool) $instance->delete();
+    }
+}
diff --git a/thanasoft-back/app/Repositories/BaseRepositoryInterface.php b/thanasoft-back/app/Repositories/BaseRepositoryInterface.php
new file mode 100644
index 0000000..ea8688d
--- /dev/null
+++ b/thanasoft-back/app/Repositories/BaseRepositoryInterface.php
@@ -0,0 +1,52 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Support\Collection;
+
+/**
+ * Base repository contract for simple CRUD operations using Eloquent models.
+ */
+interface BaseRepositoryInterface
+{
+    /**
+     * Get all records.
+     *
+     * @param array<int, string> $columns
+     * @return Collection<int, Model>
+     */
+    public function all(array $columns = ['*']): Collection;
+
+    /**
+     * Find a record by its primary key.
+     *
+     * @param int|string $id
+     * @param array<int, string> $columns
+     */
+    public function find(int|string $id, array $columns = ['*']): ?Model;
+
+    /**
+     * Create a new record with the given attributes.
+     *
+     * @param array<string, mixed> $attributes
+     */
+    public function create(array $attributes): Model;
+
+    /**
+     * Update an existing record by id with the given attributes.
+     *
+     * @param int|string $id
+     * @param array<string, mixed> $attributes
+     */
+    public function update(int|string $id, array $attributes): bool;
+
+    /**
+     * Delete a record by its primary key.
+     *
+     * @param int|string $id
+     */
+    public function delete(int|string $id): bool;
+}
diff --git a/thanasoft-back/app/Repositories/ClientContactRepository.php b/thanasoft-back/app/Repositories/ClientContactRepository.php
new file mode 100644
index 0000000..afd0b05
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientContactRepository.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use App\Models\ClientContact;
+
+class ClientContactRepository extends BaseRepository implements ClientContactRepositoryInterface
+{
+    public function __construct(ClientContact $model)
+    {
+        parent::__construct($model);
+    }
+}
diff --git a/thanasoft-back/app/Repositories/ClientContactRepositoryInterface.php b/thanasoft-back/app/Repositories/ClientContactRepositoryInterface.php
new file mode 100644
index 0000000..3c41150
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientContactRepositoryInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+interface ClientContactRepositoryInterface extends BaseRepositoryInterface
+{
+    // Add ClientContact-specific methods here later if needed
+}
diff --git a/thanasoft-back/app/Repositories/ClientGroupRepository.php b/thanasoft-back/app/Repositories/ClientGroupRepository.php
new file mode 100644
index 0000000..a703de8
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientGroupRepository.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use App\Models\ClientGroup;
+
+class ClientGroupRepository extends BaseRepository implements ClientGroupRepositoryInterface
+{
+    public function __construct(ClientGroup $model)
+    {
+        parent::__construct($model);
+    }
+}
diff --git a/thanasoft-back/app/Repositories/ClientGroupRepositoryInterface.php b/thanasoft-back/app/Repositories/ClientGroupRepositoryInterface.php
new file mode 100644
index 0000000..378dcc2
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientGroupRepositoryInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+interface ClientGroupRepositoryInterface extends BaseRepositoryInterface
+{
+    // Add ClientGroup-specific methods here later if needed
+}
diff --git a/thanasoft-back/app/Repositories/ClientLocationRepository.php b/thanasoft-back/app/Repositories/ClientLocationRepository.php
new file mode 100644
index 0000000..e16fec1
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientLocationRepository.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use App\Models\ClientLocation;
+
+class ClientLocationRepository extends BaseRepository implements ClientLocationRepositoryInterface
+{
+    public function __construct(ClientLocation $model)
+    {
+        parent::__construct($model);
+    }
+}
diff --git a/thanasoft-back/app/Repositories/ClientLocationRepositoryInterface.php b/thanasoft-back/app/Repositories/ClientLocationRepositoryInterface.php
new file mode 100644
index 0000000..e546521
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientLocationRepositoryInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+interface ClientLocationRepositoryInterface extends BaseRepositoryInterface
+{
+    // Add ClientLocation-specific methods here later if needed
+}
diff --git a/thanasoft-back/app/Repositories/ClientRepository.php b/thanasoft-back/app/Repositories/ClientRepository.php
new file mode 100644
index 0000000..9836b66
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientRepository.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use App\Models\Client;
+
+class ClientRepository extends BaseRepository implements ClientRepositoryInterface
+{
+    public function __construct(Client $model)
+    {
+        parent::__construct($model);
+    }
+}
diff --git a/thanasoft-back/app/Repositories/ClientRepositoryInterface.php b/thanasoft-back/app/Repositories/ClientRepositoryInterface.php
new file mode 100644
index 0000000..a9e56c9
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ClientRepositoryInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+interface ClientRepositoryInterface extends BaseRepositoryInterface
+{
+    // Add Client-specific methods here later if needed
+}
diff --git a/thanasoft-back/app/Repositories/ContactRepository.php b/thanasoft-back/app/Repositories/ContactRepository.php
new file mode 100644
index 0000000..672de0c
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ContactRepository.php
@@ -0,0 +1,15 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+use App\Models\Contact;
+
+class ContactRepository extends BaseRepository implements ContactRepositoryInterface
+{
+    public function __construct(Contact $model)
+    {
+        parent::__construct($model);
+    }
+}
diff --git a/thanasoft-back/app/Repositories/ContactRepositoryInterface.php b/thanasoft-back/app/Repositories/ContactRepositoryInterface.php
new file mode 100644
index 0000000..11800f7
--- /dev/null
+++ b/thanasoft-back/app/Repositories/ContactRepositoryInterface.php
@@ -0,0 +1,10 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Repositories;
+
+interface ContactRepositoryInterface extends BaseRepositoryInterface
+{
+    // Add Contact-specific methods here later if needed
+}
diff --git a/thanasoft-back/bootstrap/app.php b/thanasoft-back/bootstrap/app.php
index c3928c5..172e8fb 100644
--- a/thanasoft-back/bootstrap/app.php
+++ b/thanasoft-back/bootstrap/app.php
@@ -12,7 +12,7 @@ return Application::configure(basePath: dirname(__DIR__))
         health: '/up',
     )
     ->withMiddleware(function (Middleware $middleware): void {
-        //
+        $middleware->statefulApi();
     })
     ->withExceptions(function (Exceptions $exceptions): void {
         //
diff --git a/thanasoft-back/database/migrations/2025_10_06_145345_create_personal_access_tokens_table.php b/thanasoft-back/database/migrations/2025_10_06_145345_create_personal_access_tokens_table.php
deleted file mode 100644
index 40ff706..0000000
--- a/thanasoft-back/database/migrations/2025_10_06_145345_create_personal_access_tokens_table.php
+++ /dev/null
@@ -1,33 +0,0 @@
-<?php
-
-use Illuminate\Database\Migrations\Migration;
-use Illuminate\Database\Schema\Blueprint;
-use Illuminate\Support\Facades\Schema;
-
-return new class extends Migration
-{
-    /**
-     * Run the migrations.
-     */
-    public function up(): void
-    {
-        Schema::create('personal_access_tokens', function (Blueprint $table) {
-            $table->id();
-            $table->morphs('tokenable');
-            $table->text('name');
-            $table->string('token', 64)->unique();
-            $table->text('abilities')->nullable();
-            $table->timestamp('last_used_at')->nullable();
-            $table->timestamp('expires_at')->nullable()->index();
-            $table->timestamps();
-        });
-    }
-
-    /**
-     * Reverse the migrations.
-     */
-    public function down(): void
-    {
-        Schema::dropIfExists('personal_access_tokens');
-    }
-};
diff --git a/thanasoft-back/database/migrations/2025_10_07_113450_create_client_groups_table.php b/thanasoft-back/database/migrations/2025_10_07_113450_create_client_groups_table.php
new file mode 100644
index 0000000..4c7b073
--- /dev/null
+++ b/thanasoft-back/database/migrations/2025_10_07_113450_create_client_groups_table.php
@@ -0,0 +1,29 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('client_groups', function (Blueprint $table) {
+            $table->id();
+            $table->string('name', 191)->unique();
+            $table->text('description')->nullable();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('client_groups');
+    }
+};
diff --git a/thanasoft-back/database/migrations/2025_10_07_113522_create_clients_table.php b/thanasoft-back/database/migrations/2025_10_07_113522_create_clients_table.php
new file mode 100644
index 0000000..5fd7495
--- /dev/null
+++ b/thanasoft-back/database/migrations/2025_10_07_113522_create_clients_table.php
@@ -0,0 +1,50 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('clients', function (Blueprint $table) {
+            $table->id();
+            $table->enum('type', [
+                'pompes_funebres',
+                'famille',
+                'entreprise',
+                'collectivite',
+                'autre'
+            ])->default('pompes_funebres');
+            $table->string('name', 255);
+            $table->string('vat_number', 32)->nullable();
+            $table->string('siret', 20)->nullable();
+            $table->string('email', 191)->nullable();
+            $table->string('phone', 50)->nullable();
+            $table->string('billing_address_line1', 255)->nullable();
+            $table->string('billing_address_line2', 255)->nullable();
+            $table->string('billing_postal_code', 20)->nullable();
+            $table->string('billing_city', 191)->nullable();
+            $table->char('billing_country_code', 2)->default('FR');
+            $table->foreignId('group_id')->nullable()->constrained('client_groups')->onDelete('set null');
+            $table->text('notes')->nullable();
+            $table->boolean('is_active')->default(true);
+            //$table->foreignId('default_tva_rate_id')->nullable()->constrained('tva_rates')->onDelete('set null');
+            $table->timestamps();
+
+            $table->index(['group_id']);
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('clients');
+    }
+};
diff --git a/thanasoft-back/database/migrations/2025_10_07_113551_create_contacts_table.php b/thanasoft-back/database/migrations/2025_10_07_113551_create_contacts_table.php
new file mode 100644
index 0000000..e0f6528
--- /dev/null
+++ b/thanasoft-back/database/migrations/2025_10_07_113551_create_contacts_table.php
@@ -0,0 +1,27 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('contacts', function (Blueprint $table) {
+            $table->id();
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('contacts');
+    }
+};
diff --git a/thanasoft-back/database/migrations/2025_10_07_113647_create_client_locations_table.php b/thanasoft-back/database/migrations/2025_10_07_113647_create_client_locations_table.php
new file mode 100644
index 0000000..dc54f12
--- /dev/null
+++ b/thanasoft-back/database/migrations/2025_10_07_113647_create_client_locations_table.php
@@ -0,0 +1,37 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    /**
+     * Run the migrations.
+     */
+    public function up(): void
+    {
+        Schema::create('client_locations', function (Blueprint $table) {
+            $table->id();
+            $table->foreignId('client_id')->constrained()->onDelete('cascade');
+            $table->string('name', 191)->nullable();
+            $table->string('address_line1', 255)->nullable();
+            $table->string('address_line2', 255)->nullable();
+            $table->string('postal_code', 20)->nullable();
+            $table->string('city', 191)->nullable();
+            $table->char('country_code', 2)->default('FR');
+            $table->double('gps_lat')->nullable();
+            $table->double('gps_lng')->nullable();
+            $table->boolean('is_default')->default(false);
+            $table->timestamps();
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     */
+    public function down(): void
+    {
+        Schema::dropIfExists('client_locations');
+    }
+};
diff --git a/thanasoft-back/routes/api.php b/thanasoft-back/routes/api.php
index 62d4673..e4500b5 100644
--- a/thanasoft-back/routes/api.php
+++ b/thanasoft-back/routes/api.php
@@ -2,6 +2,10 @@
 
 use Illuminate\Support\Facades\Route;
 use App\Http\Controllers\Api\AuthController;
+use App\Http\Controllers\Api\ClientController;
+use App\Http\Controllers\Api\ClientGroupController;
+use App\Http\Controllers\Api\ClientLocationController;
+use App\Http\Controllers\Api\ContactController;
 
 /*
 |--------------------------------------------------------------------------
@@ -25,3 +29,14 @@ Route::prefix('auth')->group(function () {
         Route::post('/logout-all', [AuthController::class, 'logoutAll']);
     });
 });
+
+// Protected API routes
+Route::middleware('auth:sanctum')->group(function () {
+    // Client management
+    Route::apiResource('clients', ClientController::class);
+    Route::apiResource('client-groups', ClientGroupController::class);
+    Route::apiResource('client-locations', ClientLocationController::class);
+    
+    // Contact management
+    Route::apiResource('contacts', ContactController::class);
+});