ajout de la page modifier prestation

prestations/modifier_prestation/modifier_prestation.js

@@ -0,0 +1,47 @@
+
+const form = document.getElementById('editPrestationForm');
+const titleField = document.getElementById('prestationTtile');
+const descriptionField = document.getElementById('prestationDescription');
+const typeField = document.getElementById('prestationType');
+const priceMinField = document.getElementById('priceMin');
+const priceMaxField = document.getElementById('priceMax');
+
+const errorEmpty = document.getElementById('errorEmpty');
+const errorTechnical = document.getElementById('errorTechnical');
+const successMsg = document.getElementById('successMsg');
+
+
+form.addEventListener('submit', function (e) { 
+    e.preventDefault();
+    
+    errorEmpty.classList.add('d-none');
+    errorTechnical.classList.add('d-none');
+    successMsg.classList.add('d-none');
+
+    const title = titleField.value.trim();
+
+
+    // champ obligatoire manquant
+    if (title === '') {
+        errorEmpty.classList.remove('d-none');
+        return;
+    }
+
+     // 2️ Simulation d’erreur technique 
+    const erreurTechnique = false; //  mettre true pour tester
+    if (erreurTechnique) {
+        errorTechnical.classList.remove('d-none');
+        return;
+    }
+
+     //Succès 
+    successMsg.classList.remove('d-none');
+
+    console.log("Nouvelles données :", {
+        titre: title,
+        type: typeField.value,
+        description: descField.value,
+        prixMin: priceMinField.value,
+        prixMax: priceMaxField.value
+    });
+});