export interface PrintableCargoRow {
sku: string
name: string
expectedPackageCount?: number
generatedCartonMarks?: string[]
}
const escapeHtml = (value: string) => value.replace(/[&<>"']/g, char => ({ '&': '&', '<': '<', '>': '>', '"': '"', "'": ''' })[char]!)
/** Generate labels in memory only. The later order request carries these same identities. */
export function prepareTransferCartonLabels(rows: PrintableCargoRow[], newMark: () => string = () => {
const bytes = crypto.getRandomValues(new Uint8Array(16))
return `BX-${Array.from(bytes, byte => byte.toString(16).padStart(2, '0')).join('').toUpperCase()}`
}) {
const total = rows.reduce((sum, row) => sum + Number(row.expectedPackageCount || 0), 0)
if (!rows.length || rows.some(row => !Number.isSafeInteger(row.expectedPackageCount) || Number(row.expectedPackageCount) < 1) || total > 5000) {
throw new Error('请填写货物的预计箱数（正整数），单次最多打印 5000 箱')
}
let index = 0
const labels = rows.flatMap(row => {
const count = Number(row.expectedPackageCount)
const marks = row.generatedCartonMarks ||= []
while (marks.length < count) marks.push(newMark())
return marks.slice(0, count).map(mark => `仓储转运箱唛
${escapeHtml(mark)}
${++index} / ${total}
SKU：${escapeHtml(row.sku)}
${escapeHtml(row.name)}
`)
})
return `仓储转运箱唛${labels.join('')}`
}