buildLabelPrintPayload.ts
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/**
* 按平台 label-template-*.json 结构组装「打印任务」数据（合并后的模板快照 + printInputJson）。
* 物理 BLE 打印仍走位图 TSC（与 Test Print 相同）；本对象为业务/插件侧与 JSON 模板对齐的权威快照。
*/
import type { SystemLabelTemplate, SystemTemplateElementBase } from '../print/types/printer'
/** 与仓库内 label-template-template-*.json 根结构一致 */
export interface LabelTemplateDocumentJson {
id: string
name: string
labelType?: string
unit: string
width: number
height: number
appliedLocation?: string
showRuler?: boolean
showGrid?: boolean
elements: Record<string, unknown>[]
}
export interface LabelPrintJobMeta {
labelCode?: string
productId?: string
printQuantity?: number
locationId?: string
}
export interface LabelPrintJobPayload {
template: LabelTemplateDocumentJson
/** 与接口 printInputJson 一致（inputKey / elementName 等键） */
printInputJson: Record<string, unknown>
meta?: LabelPrintJobMeta
}
function cloneJsonSafeConfig(cfg: Record<string, unknown>): Record<string, unknown> {
try {
return JSON.parse(JSON.stringify(cfg ?? {})) as Record<string, unknown>
} catch {
return { ...(cfg || {}) } as Record<string, unknown>
}
}
/** 落库 config：完整深拷贝，避免白名单遗漏字段导致重打缺价签/过敏原/数字等 */
function mergePersistConfigSnapshot(src: Record<string, unknown>): Record<string, unknown> {
return cloneJsonSafeConfig(src)
}
/** 单元素序列化：与 JSON 模板 elements[] 项字段对齐，并保留 PRINT_INPUT 相关根字段 */
export function serializeElementForLabelTemplateJson(el: SystemTemplateElementBase): Record<string, unknown> {
const cfg = (el.config || {}) as Record<string, unknown>
const o: Record<string, unknown> = {
id: el.id,
type: el.type,
x: el.x,
y: el.y,
width: el.width,
height: el.height,
rotation: el.rotation ?? 'horizontal',
border: el.border ?? 'none',
config: mergePersistConfigSnapshot(cfg),
}
if (el.valueSourceType) o.valueSourceType = el.valueSourceType
if (el.inputKey != null && String(el.inputKey).trim()) o.inputKey = el.inputKey
if (el.elementName != null && String(el.elementName).trim()) o.elementName = el.elementName
const zx = el as SystemTemplateElementBase & { zIndex?: number; orderNum?: number }
if (zx.zIndex !== undefined) o.zIndex = zx.zIndex
if (zx.orderNum !== undefined) o.orderNum = zx.orderNum
return o
}
/**
* 从当前合并模板 + 已组好的 printInputJson 生成与 label-template JSON 同构的打印载荷。
*/
export function buildLabelPrintJobPayload(
merged: SystemLabelTemplate,
printInputJson: Record<string, unknown>,
meta?: LabelPrintJobMeta
): LabelPrintJobPayload {
const template: LabelTemplateDocumentJson = {
id: String(merged.id || ''),
name: String(merged.name || '未命名模板'),
labelType: merged.labelType,
unit: String(merged.unit || 'inch'),
width: Number(merged.width) || 0,
height: Number(merged.height) || 0,
appliedLocation: merged.appliedLocation || 'ALL',
showRuler: merged.showRuler !== false,
showGrid: merged.showGrid !== false,
elements: (merged.elements || []).map(serializeElementForLabelTemplateJson),
}
return {
template,
printInputJson: { ...printInputJson },
meta: meta ? { ...meta } : undefined,
}
}
let lastLabelPrintJobPayload: LabelPrintJobPayload | null = null
/** 供调试或后续原生插件读取最近一次组装的任务（template + printInputJson） */
export function setLastLabelPrintJobPayload(p: LabelPrintJobPayload): void {
lastLabelPrintJobPayload = p
}
export function getLastLabelPrintJobPayload(): LabelPrintJobPayload | null {
return lastLabelPrintJobPayload
}
/** 与原生 printTemplate 入参一致：插件侧可对齐平台导出 JSON */
export function stringifyLabelPrintJobForNative(p: LabelPrintJobPayload): {
templateJson: string
dataJson: string
} {
return {
templateJson: JSON.stringify(p.template),
dataJson: JSON.stringify(p.printInputJson ?? {}),
}
}