Add label printing functionality and error handling in stock and label flows

src/features/stock/stock-detail-page.js

@@ -3,10 +3,86 @@ import {
   getStockEntry,
   useStockItem,
 } from '../../api/stock.js';
+import { formatPrintErrorMessage, printItemLabel } from '../../api/labels.js';
+import { fetchLocations } from '../../api/locations.js';
 import { getRouteContext } from '../../app/router.js';
 import { createAsyncState, runAsyncState } from '../shared/ui-state.js';
 import { formatDate } from '../shared/date-utils.js';
 
+function todayAtMidnight() {
+  const now = new Date();
+  return new Date(now.getFullYear(), now.getMonth(), now.getDate());
+}
+
+function parseDateValue(value) {
+  if (!value) {
+    return null;
+  }
+
+  const [year, month, day] = String(value).split('-').map(Number);
+  if (!year || !month || !day) {
+    return null;
+  }
+
+  return new Date(year, month - 1, day);
+}
+
+function expirationInfo(entry) {
+  if (!entry?.expire_date) {
+    return {
+      key: 'none',
+      label: 'No expiration date',
+      detail: 'No expiration date',
+    };
+  }
+
+  const expireDate = parseDateValue(entry.expire_date);
+  const expireIn =
+    typeof entry.expire_in === 'number'
+      ? entry.expire_in
+      : expireDate
+        ? Math.round((expireDate - todayAtMidnight()) / (24 * 60 * 60 * 1000))
+        : null;
+
+  if (expireIn === null) {
+    return {
+      key: 'none',
+      label: 'No expiration date',
+      detail: 'No expiration date',
+    };
+  }
+
+  if (expireIn < 0) {
+    return {
+      key: 'expired',
+      label: 'Expired',
+      detail: `Expired ${Math.abs(expireIn)} day${Math.abs(expireIn) === 1 ? '' : 's'} ago`,
+    };
+  }
+
+  if (expireIn <= 2) {
+    return {
+      key: 'use-first',
+      label: expireIn === 0 ? 'Use today' : 'Use first',
+      detail: expireIn === 0 ? 'Expires today' : `Expires in ${expireIn} day${expireIn === 1 ? '' : 's'}`,
+    };
+  }
+
+  if (expireIn <= 7) {
+    return {
+      key: 'upcoming',
+      label: 'Upcoming expiration',
+      detail: `Expires in ${expireIn} days`,
+    };
+  }
+
+  return {
+    key: 'within-date',
+    label: 'Within date',
+    detail: `Expires in ${expireIn} days`,
+  };
+}
+
 export function renderStockDetailPage() {
   return `
     <section class="container-xxl py-4 py-lg-5" x-data="stockDetailPage()" x-init="init()">
@@ -42,14 +118,45 @@ export function renderStockDetailPage() {
                   <dt class="col-5">Quantity</dt>
                   <dd class="col-7" x-text="formatQuantity(entry)"></dd>
                   <dt class="col-5">Location</dt>
-                  <dd class="col-7" x-text="entry.location_initial_uuid_b64 || 'Unassigned'"></dd>
+                  <dd class="col-7" x-text="locationLabel(entry)"></dd>
                   <dt class="col-5">Production date</dt>
                   <dd class="col-7" x-text="formatDate(entry.date)"></dd>
                   <dt class="col-5">Expiration date</dt>
                   <dd class="col-7" x-text="formatDate(entry.expire_date)"></dd>
+                  <dt class="col-5">Expiration status</dt>
+                  <dd class="col-7">
+                    <div class="d-flex align-items-center gap-2 mb-1">
+                      <span class="badge rounded-pill" :class="expirationBadgeClass(entry)" x-text="expirationFor(entry).label"></span>
+                    </div>
+                    <div class="small text-body-secondary" x-text="expirationFor(entry).detail"></div>
+                  </dd>
                   <dt class="col-5">Stock type</dt>
                   <dd class="col-7" x-text="entry.stock_type || 'Stored'"></dd>
                 </dl>
+
+                <div class="mt-4">
+                  <h3 class="h6 mb-3">Nutrition</h3>
+                  <dl class="row mb-0 detail-grid">
+                    <dt class="col-5">Nutri-Score</dt>
+                    <dd class="col-7" x-text="nutriScoreLabel(entry)"></dd>
+                    <dt class="col-5">Nutriments</dt>
+                    <dd class="col-7">
+                      <template x-if="nutritionFactsRows(entry).length">
+                        <ul class="list-unstyled mb-0 small d-grid gap-1">
+                          <template x-for="fact in nutritionFactsRows(entry)" :key="fact.key">
+                            <li>
+                              <span class="text-body-secondary" x-text="fact.label + ':'"></span>
+                              <span class="fw-semibold" x-text="fact.value"></span>
+                            </li>
+                          </template>
+                        </ul>
+                      </template>
+                      <template x-if="!nutritionFactsRows(entry).length">
+                        <span class="text-body-secondary">Not available</span>
+                      </template>
+                    </dd>
+                  </dl>
+                </div>
               </div>
             </div>
           </div>
@@ -83,12 +190,23 @@ export function renderStockDetailPage() {
                     <template x-if="adjustmentState.error">
                       <div class="alert alert-danger mb-0" x-text="adjustmentState.error"></div>
                     </template>
+                    <template x-if="printFeedback.message">
+                      <div
+                        class="alert mb-0"
+                        :class="printFeedback.type === 'success' ? 'alert-success' : 'alert-warning'"
+                        x-text="printFeedback.message"
+                      ></div>
+                    </template>
 
                     <div class="d-flex flex-wrap gap-2">
                       <button class="btn btn-primary" type="submit" :disabled="adjustmentState.isLoading">
                         <span x-show="!adjustmentState.isLoading">Save quantity</span>
                         <span x-show="adjustmentState.isLoading">Saving...</span>
                       </button>
+                      <button class="btn btn-outline-secondary" type="button" @click="printLabel()" :disabled="printState.isLoading">
+                        <span x-show="!printState.isLoading">Print label</span>
+                        <span x-show="printState.isLoading">Printing...</span>
+                      </button>
                       <button class="btn btn-outline-danger" type="button" @click="markGone()" :disabled="adjustmentState.isLoading">
                         <span x-show="!adjustmentState.isLoading">Mark gone</span>
                         <span x-show="adjustmentState.isLoading">Removing...</span>
@@ -114,12 +232,23 @@ export function renderStockDetailPage() {
                     <template x-if="adjustmentState.error">
                       <div class="alert alert-danger mb-0" x-text="adjustmentState.error"></div>
                     </template>
+                    <template x-if="printFeedback.message">
+                      <div
+                        class="alert mb-0"
+                        :class="printFeedback.type === 'success' ? 'alert-success' : 'alert-warning'"
+                        x-text="printFeedback.message"
+                      ></div>
+                    </template>
 
                     <div class="d-flex flex-wrap gap-2">
                       <button class="btn btn-primary" type="submit" :disabled="adjustmentState.isLoading">
                         <span x-show="!adjustmentState.isLoading">Save stock level</span>
                         <span x-show="adjustmentState.isLoading">Saving...</span>
                       </button>
+                      <button class="btn btn-outline-secondary" type="button" @click="printLabel()" :disabled="printState.isLoading">
+                        <span x-show="!printState.isLoading">Print label</span>
+                        <span x-show="printState.isLoading">Printing...</span>
+                      </button>
                       <button class="btn btn-outline-danger" type="button" @click="markGone()" :disabled="adjustmentState.isLoading">
                         <span x-show="!adjustmentState.isLoading">Mark gone</span>
                         <span x-show="adjustmentState.isLoading">Removing...</span>
@@ -137,11 +266,22 @@ export function renderStockDetailPage() {
                     <template x-if="adjustmentState.error">
                       <div class="alert alert-danger mb-0" x-text="adjustmentState.error"></div>
                     </template>
+                    <template x-if="printFeedback.message">
+                      <div
+                        class="alert mb-0"
+                        :class="printFeedback.type === 'success' ? 'alert-success' : 'alert-warning'"
+                        x-text="printFeedback.message"
+                      ></div>
+                    </template>
 
                     <button class="btn btn-outline-danger align-self-start" type="button" @click="markGone()" :disabled="adjustmentState.isLoading">
                       <span x-show="!adjustmentState.isLoading">Mark gone</span>
                       <span x-show="adjustmentState.isLoading">Removing...</span>
                     </button>
+                    <button class="btn btn-outline-secondary align-self-start" type="button" @click="printLabel()" :disabled="printState.isLoading">
+                      <span x-show="!printState.isLoading">Print label</span>
+                      <span x-show="printState.isLoading">Printing...</span>
+                    </button>
                   </div>
                 </template>
               </div>
@@ -157,7 +297,13 @@ export function stockDetailPageData(store) {
   return {
     state: createAsyncState(),
     adjustmentState: createAsyncState(),
+    printState: createAsyncState(),
+    printFeedback: {
+      type: '',
+      message: '',
+    },
     entry: null,
+    locationPathByUuid: {},
     adjustment: {
       mode: 'increment',
       quantity: '1',
@@ -170,7 +316,16 @@ export function stockDetailPageData(store) {
 
       const { params } = getRouteContext();
       await runAsyncState(this.state, async () => {
-        this.entry = await getStockEntry(store, params.id);
+        const [entry, locations] = await Promise.all([
+          getStockEntry(store, params.id),
+          fetchLocations(store).catch(() => ({ flat: [] })),
+        ]);
+        this.entry = entry;
+        this.locationPathByUuid = Object.fromEntries(
+          (locations.flat || [])
+            .filter((location) => location.uuid_b64)
+            .map((location) => [location.uuid_b64, location.pathLabel || location.name]),
+        );
         this.adjustment.level = this.entry?.level || 'plenty';
       }).catch(() => {});
     },
@@ -236,11 +391,144 @@ export function stockDetailPageData(store) {
         window.__loncApp.navigate('/stock');
       }).catch(() => {});
     },
+    async printLabel() {
+      if (!this.entry?.uuid_b64) {
+        return;
+      }
+
+      this.printFeedback = {
+        type: '',
+        message: '',
+      };
+
+      await runAsyncState(this.printState, async () => {
+        try {
+          await printItemLabel(store, this.entry.uuid_b64);
+          this.printFeedback = {
+            type: 'success',
+            message: 'Label printed successfully.',
+          };
+          store.addAlert({
+            type: 'success',
+            message: `${this.entry.name} label sent to printer.`,
+          });
+        } catch (error) {
+          const parsed = formatPrintErrorMessage(error);
+          this.printFeedback = {
+            type: 'warning',
+            message: parsed,
+          };
+          store.addAlert({
+            type: 'warning',
+            message: `Could not print ${this.entry.name} label: ${parsed}`,
+          });
+        }
+      }).catch(() => {});
+    },
     quickAdjust(step) {
       const current = Number(this.adjustment.quantity || 0);
       this.adjustment.quantity = String(Math.max(current + step, 0));
     },
     formatDate,
+    expirationFor(entry) {
+      return expirationInfo(entry);
+    },
+    expirationBadgeClass(entry) {
+      const key = this.expirationFor(entry).key;
+      if (key === 'expired') {
+        return 'text-bg-danger';
+      }
+      if (key === 'use-first') {
+        return 'text-bg-warning';
+      }
+      if (key === 'upcoming') {
+        return 'text-bg-secondary';
+      }
+      if (key === 'within-date') {
+        return 'text-bg-success';
+      }
+      return 'text-bg-light border';
+    },
+    locationLabel(entry) {
+      const locationUuid = entry?.location_initial_uuid_b64;
+      if (!locationUuid) {
+        return 'Unassigned';
+      }
+
+      return this.locationPathByUuid[locationUuid] || 'Location not resolved';
+    },
+    nutriScoreLabel(entry) {
+      const value = entry?.nutriscore_grade;
+      if (!value) {
+        return 'Not available';
+      }
+
+      return String(value).toUpperCase();
+    },
+    nutritionFactsRows(entry) {
+      const facts = entry?.nutrition_facts;
+      if (!facts || typeof facts !== 'object' || Array.isArray(facts)) {
+        return [];
+      }
+
+      const preferredOrder = [
+        'per',
+        'serving_size',
+        'energy_kj',
+        'energy_kcal',
+        'fat',
+        'saturated_fat',
+        'carbohydrates',
+        'sugars',
+        'fibers',
+        'proteins',
+        'salt',
+        'sodium',
+      ];
+      const rankByKey = new Map(preferredOrder.map((key, index) => [key, index]));
+
+      return Object.entries(facts)
+        .sort(([leftKey], [rightKey]) => {
+          const leftRank = rankByKey.has(leftKey) ? rankByKey.get(leftKey) : Number.POSITIVE_INFINITY;
+          const rightRank = rankByKey.has(rightKey) ? rankByKey.get(rightKey) : Number.POSITIVE_INFINITY;
+
+          if (leftRank !== rightRank) {
+            return leftRank - rightRank;
+          }
+
+          return leftKey.localeCompare(rightKey);
+        })
+        .map(([key, value]) => ({
+          key,
+          label: this.nutritionLabel(key),
+          value: this.formatNutritionValue(value),
+        }));
+    },
+    nutritionLabel(key) {
+      const labels = {
+        per: 'Per',
+        serving_size: 'Serving size',
+        energy_kj: 'Energy (kJ)',
+        energy_kcal: 'Energy (kcal)',
+        fat: 'Fat',
+        saturated_fat: 'Saturated fat',
+        carbohydrates: 'Carbohydrates',
+        sugars: 'Sugars',
+        fibers: 'Fibers',
+        proteins: 'Proteins',
+        salt: 'Salt',
+        sodium: 'Sodium',
+      };
+
+      return labels[key] || key.replace(/_/g, ' ');
+    },
+    formatNutritionValue(value) {
+      if (value === null || value === undefined || value === '') {
+        return 'n/a';
+      }
+
+      return String(value);
+    },
     formatQuantity(entry) {
       return `${entry.quantity ?? 0} ${entry.uom_symbol || ''}`.trim();
     },