shopdb-flask/plugins/printedparts/frontend/views/PrintedPartsLabels.vue

<template>
  <div>
    <div class="no-print">
      <div class="controls">
        <h3>Print 3D Parts Bin Labels (1in x 0.5in)</h3>
        <p>
          Each label is one page on 1in x 0.5in roll stock: CODE128 barcode of
          the item code, scannable at the parts kiosk.
        </p>

        <div v-if="loading" class="loading-msg">Loading parts...</div>
        <div v-else-if="items.length === 0" class="loading-msg">No parts found</div>
        <div v-else class="parts-grid">
          <div
            v-for="item in items"
            :key="item.printeditemid"
            class="part-item"
            :class="{ selected: isSelected(item) }"
            @click="toggleItem(item)"
          >
            <input type="checkbox" :checked="isSelected(item)" @click.stop />
            <label>
              <strong><code>{{ item.itemcode }}</code></strong>
              <div class="alias">{{ item.itemname }}</div>
            </label>
          </div>
        </div>

        <div class="selected-count">
          Selected: <span class="count">{{ selectedItems.length }}</span> labels
          <label class="copies-label">Copies each:
            <input v-model.number="copies" type="number" min="1" max="10" />
          </label>
        </div>

        <button class="print-btn" :disabled="selectedItems.length === 0"
                @click="print">Print Labels</button>
        <button class="clear-btn" @click="selectedItems = []">Clear All</button>
        <button class="select-all-btn" @click="selectedItems = [...items]">Select All</button>
      </div>
    </div>

    <div class="labels-container">
      <div v-for="(label, index) in printLabels" :key="index" class="bin-label">
        <svg :ref="element => setBarcodeElement(element, index)" class="bin-barcode"></svg>
        <div class="bin-code">{{ label.itemcode }}</div>
      </div>
    </div>
  </div>
</template>

<script setup>
import { ref, computed, onMounted, watch, nextTick } from 'vue'
import JsBarcode from 'jsbarcode'
import { printedpartsApi } from '@/api'

const items = ref([])
const selectedItems = ref([])
const copies = ref(1)
const loading = ref(true)
const barcodeElements = ref({})

onMounted(async () => {
  try {
    const response = await printedpartsApi.list({ perpage: 500 })
    items.value = response.data.data || []
    // ?item=<id> preselects one part (the Detail-page print button)
    const preselect = new URLSearchParams(window.location.search).get('item')
    if (preselect) {
      const match = items.value.find(
        candidate => String(candidate.printeditemid) === preselect)
      if (match) selectedItems.value = [match]
    }
  } catch (error) {
    console.error('Error loading parts:', error)
  } finally {
    loading.value = false
  }
})

const printLabels = computed(() => {
  const labels = []
  for (const item of selectedItems.value) {
    for (let copy = 0; copy < Math.max(1, copies.value); copy++) {
      labels.push(item)
    }
  }
  return labels
})

function isSelected(item) {
  return selectedItems.value.some(
    candidate => candidate.printeditemid === item.printeditemid)
}

function toggleItem(item) {
  if (isSelected(item)) {
    selectedItems.value = selectedItems.value.filter(
      candidate => candidate.printeditemid !== item.printeditemid)
  } else {
    selectedItems.value = [...selectedItems.value, item]
  }
}

function setBarcodeElement(element, index) {
  if (element) barcodeElements.value[index] = element
}

watch(printLabels, async labels => {
  await nextTick()
  labels.forEach((label, index) => {
    const element = barcodeElements.value[index]
    if (element) {
      // CODE128 of the short item code fits 1x0.5in with comfortable
      // scanner tolerance; a QR at this size would be marginal.
      JsBarcode(element, label.itemcode, {
        format: 'CODE128',
        displayValue: false,
        width: 1.4,
        height: 26,
        margin: 0
      })
    }
  })
}, { deep: true })

function print() {
  window.print()
}
</script>

<style scoped>
.controls {
  max-width: 46rem;
  margin: 1rem auto;
  padding: 1rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
}
.parts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(14rem, 1fr));
  gap: 0.5rem;
  max-height: 20rem;
  overflow-y: auto;
  margin: 1rem 0;
}
.part-item {
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  border: 1px solid var(--border);
  border-radius: 0.35rem;
  cursor: pointer;
}
.part-item.selected { border-color: var(--primary); }
.alias { color: var(--text-light); font-size: 0.85rem; }
.selected-count { margin: 0.75rem 0; }
.copies-label { margin-left: 1.25rem; }
.copies-label input { width: 4rem; padding: 0.25rem; }
.print-btn, .clear-btn, .select-all-btn {
  margin-right: 0.5rem;
  padding: 0.5rem 1rem;
  cursor: pointer;
}
.loading-msg { color: var(--text-light); padding: 1rem; }

/* screen preview of the labels */
.labels-container { display: flex; flex-wrap: wrap; gap: 0.4rem; padding: 1rem; }
.bin-label {
  width: 1in;
  height: 0.5in;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: #fff;
  outline: 1px dashed #bbb;
}
.bin-barcode { width: 0.92in; height: 0.3in; }
.bin-code {
  font-size: 6.5pt;
  font-family: monospace;
  color: #000;
  line-height: 1;
}

/* 1in x 0.5in roll stock: one label per page */
@media print {
  .no-print { display: none; }
  .labels-container { display: block; padding: 0; gap: 0; }
  .bin-label {
    outline: none;
    page-break-after: always;
    break-after: page;
  }
}
</style>

<style>
@media print {
  @page { size: 1in 0.5in; margin: 0; }
  body { margin: 0; }
}
</style>