feat(admin): enhance areas map interface with global view

Added mainMap to visualize all configured areas. Included reference layers for existing areas when editing or creating a new polygon to prevent overlap.

app/pages/admin/areas.vue

@@ -1,5 +1,5 @@
 <script setup lang="ts">
-import { ref, reactive, nextTick, onBeforeUnmount, computed } from 'vue'
+import { ref, reactive, nextTick, onBeforeUnmount, computed, watch } from 'vue'
 import { BARI_BOUNDS, BARI_CENTER, isWithinBariBounds } from '~/utils/bari'
 
 definePageMeta({
@@ -24,8 +24,8 @@ const actionError = ref('')
 const deletingAreaId = ref<number | null>(null)
 const areaPendingDelete = ref<any | null>(null)
 
-// Map variables
 let map: any = null
+let mainMap: any = null
 let polygon: any = null
 const mapPoints = ref<[number, number][]>([])
 
@@ -34,9 +34,98 @@ const submitLabel = computed(() => editingAreaId.value ? 'Salva Modifiche' : 'Cr
 const isEditing = computed(() => editingAreaId.value !== null)
 const areas = computed(() => areasRes.value?.areas || [])
 const areaDeleteMessage = computed(() =>
-  areaPendingDelete.value ? `Vuoi eliminare area "${areaPendingDelete.value.name}"? Operazione irreversibile.` : ''
+    areaPendingDelete.value ? `Vuoi eliminare area "${areaPendingDelete.value.name}"? Operazione irreversibile.` : ''
 )
 
+const initMainMap = async () => {
+  const mapElement = document.getElementById('mainMap')
+  if (!mapElement) return
+
+  const L = (await import('leaflet')).default
+
+  if (mainMap) {
+    mainMap.remove()
+    mainMap = null
+  }
+
+  const bariBounds = L.latLngBounds(
+      [BARI_BOUNDS.south, BARI_BOUNDS.west],
+      [BARI_BOUNDS.north, BARI_BOUNDS.east]
+  )
+
+  mainMap = L.map('mainMap', {
+    maxBounds: bariBounds,
+    maxBoundsViscosity: 1,
+    minZoom: 11
+  }).setView(BARI_CENTER, 12)
+
+  L.tileLayer('https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png', {
+    maxZoom: 19,
+    attribution: '© OpenStreetMap'
+  }).addTo(mainMap)
+
+  const featureGroup = L.featureGroup().addTo(mainMap)
+  let hasLayers = false
+
+  areas.value.forEach((area: any) => {
+    if (area.boundary_geojson) {
+      try {
+        const layer = L.geoJSON(JSON.parse(area.boundary_geojson), {
+          style: {
+            color: '#0d6efd',
+            weight: 2,
+            fillOpacity: 0.2
+          }
+        }).bindPopup(`<strong>${area.name}</strong><br/>${area.description || ''}`)
+
+        layer.addTo(featureGroup)
+        hasLayers = true
+      } catch (e) {
+        console.error('Invalid geojson for area', area.id, e)
+      }
+    }
+  })
+
+  if (hasLayers) {
+    mainMap.fitBounds(featureGroup.getBounds())
+  } else {
+    mainMap.fitBounds(bariBounds)
+  }
+}
+
+watch([areas, pending], () => {
+  if (!pending.value) {
+    if (areas.value.length > 0) {
+      nextTick(() => {
+        initMainMap()
+      })
+    } else if (mainMap) {
+      mainMap.remove()
+      mainMap = null
+    }
+  }
+}, { immediate: true })
+
+const renderExistingAreasInModal = (L: any, currentMap: any) => {
+  areas.value.forEach((area: any) => {
+    if (area.id === editingAreaId.value) return
+
+    if (area.boundary_geojson) {
+      try {
+        L.geoJSON(JSON.parse(area.boundary_geojson), {
+          style: {
+            color: '#6c757d',
+            weight: 2,
+            dashArray: '5, 5',
+            fillOpacity: 0.1
+          },
+          interactive: false
+        }).addTo(currentMap)
+      } catch(e) {}
+    }
+  })
+}
+
 const openCreateModal = () => {
   actionError.value = ''
   editingAreaId.value = null
@@ -48,7 +137,6 @@ const openCreateModal = () => {
   isCreating.value = true
 
   nextTick(async () => {
-    // Import leaflet solo client-side
     const L = (await import('leaflet')).default
 
     if (map) {
@@ -57,8 +145,8 @@ const openCreateModal = () => {
     }
 
     const bariBounds = L.latLngBounds(
-      [BARI_BOUNDS.south, BARI_BOUNDS.west],
+        [BARI_BOUNDS.south, BARI_BOUNDS.west],
-      [BARI_BOUNDS.north, BARI_BOUNDS.east]
+        [BARI_BOUNDS.north, BARI_BOUNDS.east]
     )
 
     map = L.map('areaMap', {
@@ -74,6 +162,8 @@ const openCreateModal = () => {
     polygon = L.polygon([], { color: 'red' }).addTo(map)
     map.fitBounds(bariBounds)
 
+    renderExistingAreasInModal(L, map)
+
     map.on('click', (e: any) => {
       if (!isWithinBariBounds(e.latlng.lat, e.latlng.lng)) {
         jsonError.value = 'Puoi disegnare aree solo entro confini del Comune di Bari.'
@@ -96,8 +186,8 @@ const loadPolygonFromGeoJson = (boundaryGeojson: any) => {
   }
 
   const normalized = coordinates
-    .slice(0, -1)
+      .slice(0, -1)
-    .map(([longitude, latitude]: [number, number]) => [latitude, longitude] as [number, number])
+      .map(([longitude, latitude]: [number, number]) => [latitude, longitude] as [number, number])
 
   mapPoints.value = normalized
   if (polygon) {
@@ -110,7 +200,7 @@ const openEditModal = (area: any) => {
   editingAreaId.value = area.id
   formData.name = area.name || ''
   formData.description = area.description || ''
-  formData.geojson = area.boundary_geojson ? JSON.stringify(area.boundary_geojson, null, 2) : ''
+  formData.geojson = area.boundary_geojson || ''
   jsonError.value = ''
   mapPoints.value = []
   isCreating.value = true
@@ -124,8 +214,8 @@ const openEditModal = (area: any) => {
     }
 
     const bariBounds = L.latLngBounds(
-      [BARI_BOUNDS.south, BARI_BOUNDS.west],
+        [BARI_BOUNDS.south, BARI_BOUNDS.west],
-      [BARI_BOUNDS.north, BARI_BOUNDS.east]
+        [BARI_BOUNDS.north, BARI_BOUNDS.east]
     )
 
     map = L.map('areaMap', {
@@ -137,9 +227,20 @@ const openEditModal = (area: any) => {
       maxZoom: 19,
       attribution: '© OpenStreetMap'
     }).addTo(map)
+    console.log(JSON.parse(area.boundary_geojson))
+    L.geoJSON(JSON.parse(area.boundary_geojson), {
+      style: {
+        color: '#0d6efd',
+        weight: 2,
+        fillOpacity: 0.2
+      }
+    }).addTo(map)
 
     polygon = L.polygon([], { color: 'red' }).addTo(map)
     map.fitBounds(bariBounds)
+
+    renderExistingAreasInModal(L, map)
+
     loadPolygonFromGeoJson(area.boundary_geojson)
 
     map.on('click', (e: any) => {
@@ -171,7 +272,7 @@ const updateGeojson = () => {
   }
   const coords = mapPoints.value.map(p => [p[1], p[0]] as [number, number]) // Lng, Lat
   if (coords[0]) {
-    coords.push([...coords[0]]) // Chiudi poligono
+    coords.push([...coords[0]])
   }
 
   formData.geojson = JSON.stringify({
@@ -191,6 +292,7 @@ const closeCreateModal = () => {
 
 onBeforeUnmount(() => {
   if (map) map.remove()
+  if (mainMap) mainMap.remove()
 })
 
 const handleCreate = async () => {
@@ -221,8 +323,8 @@ const handleCreate = async () => {
     }
 
     const res = editingAreaId.value
-      ? await updateArea(editingAreaId.value, payload)
+        ? await updateArea(editingAreaId.value, payload)
-      : await createArea(payload)
+        : await createArea(payload)
 
     if (res.ok) {
       await refresh()
@@ -291,13 +393,19 @@ const handleDeleteArea = async () => {
       Nessuna area configurata.
     </div>
 
-    <div v-if="actionError" class="alert alert-danger">
+    <template v-else>
-      {{ actionError }}
+      <!-- Main view map showing all areas -->
-    </div>
+      <div class="card mb-4 shadow-sm border-0">
+        <div id="mainMap" class="rounded" style="height: 400px; width: 100%; z-index: 1;"></div>
+      </div>
 
-    <div v-else class="table-responsive">
+      <div v-if="actionError" class="alert alert-danger">
-      <table class="table table-hover align-middle bg-white shadow-sm rounded">
+        {{ actionError }}
-        <thead class="table-light">
+      </div>
+
+      <div v-else class="table-responsive">
+        <table class="table table-hover align-middle bg-white shadow-sm rounded">
+          <thead class="table-light">
           <tr>
             <th>ID</th>
             <th>Nome</th>
@@ -305,8 +413,8 @@ const handleDeleteArea = async () => {
             <th>GeoJSON</th>
             <th class="text-end">Azioni</th>
           </tr>
-        </thead>
+          </thead>
-        <tbody>
+          <tbody>
           <tr v-for="area in areas" :key="area.id">
             <td>{{ area.id }}</td>
             <td><strong>{{ area.name }}</strong></td>
@@ -320,20 +428,21 @@ const handleDeleteArea = async () => {
                 Modifica
               </button>
               <button
-                class="btn btn-sm btn-outline-danger ms-2"
+                  class="btn btn-sm btn-outline-danger ms-2"
-                :disabled="deletingAreaId === area.id"
+                  :disabled="deletingAreaId === area.id"
-                @click="askDeleteArea(area)"
+                  @click="askDeleteArea(area)"
               >
                 <span v-if="deletingAreaId === area.id" class="spinner-border spinner-border-sm me-1"></span>
                 Elimina
               </button>
             </td>
           </tr>
-        </tbody>
+          </tbody>
-      </table>
+        </table>
-    </div>
+      </div>
+    </template>
 
-    <!-- Modale Creazione -->
+    <!-- Modale Creazione/Modifica -->
     <div v-if="isCreating" class="modal-backdrop fade show d-block" style="background: rgba(0,0,0,0.5); z-index: 1040;"></div>
     <div v-if="isCreating" class="modal fade show d-block" tabindex="-1" style="z-index: 1050;">
       <div class="modal-dialog modal-xl modal-dialog-centered modal-dialog-scrollable">
@@ -357,12 +466,12 @@ const handleDeleteArea = async () => {
                   <div class="mb-3">
                     <label class="form-label">GeoJSON Generato</label>
                     <textarea
-                      class="form-control font-monospace text-sm" 
+                        class="form-control font-monospace text-sm"
-                      rows="6" 
+                        rows="6"
-                      v-model="formData.geojson" 
+                        v-model="formData.geojson"
-                      required
+                        required
-                      readonly
+                        readonly
-                      placeholder='{ "type": "Polygon", "coordinates": [...] }'
+                        placeholder='{ "type": "Polygon", "coordinates": [...] }'
                     ></textarea>
                     <div v-if="jsonError" class="form-text text-danger mt-1">{{ jsonError }}</div>
                   </div>
@@ -394,20 +503,20 @@ const handleDeleteArea = async () => {
     </div>
 
     <ConfirmModal
-      :open="areaPendingDelete !== null"
+        :open="areaPendingDelete !== null"
-      title="Elimina area"
+        title="Elimina area"
-      :message="areaDeleteMessage"
+        :message="areaDeleteMessage"
-      confirm-label="Elimina area"
+        confirm-label="Elimina area"
-      confirm-class="btn-danger"
+        confirm-class="btn-danger"
-      :pending="deletingAreaId !== null"
+        :pending="deletingAreaId !== null"
-      @cancel="closeDeleteAreaModal"
+        @cancel="closeDeleteAreaModal"
-      @confirm="handleDeleteArea"
+        @confirm="handleDeleteArea"
     />
   </div>
 </template>
 
 <style scoped>
-#areaMap {
+#areaMap, #mainMap {
   background: #e9ecef;
 }