qhmes/jeecgboot-vue3/src/views/print/template/utils/printNativeViaPrintDot.ts

import type { NativeTemplateSchema } from '../native/core/types';
import { renderNativePrintHtml } from '../native/core/printRenderer';
import { buildPdfBase64FromHtmlFragment, extractBodyInnerHtmlFromFullDocument } from './printHtmlToPdfBase64';
import { fetchPrintDotPrinters, printDotSendPdf, resolvePrintDotPrinterName } from './printDotBridge';

/** 与模板列表页共用，便于设计器与列表选择同一台 PrintDot 打印机 */
export const PRINT_TEMPLATE_SELECTED_PRINTER_KEY = 'print_template_selected_printer';

/**
 * 原生模板：渲染 HTML → 转 PDF → 经 PrintDot 本地桥接器送打印机
 */
export async function printNativeSchemaViaPrintDot(params: {
  schema: NativeTemplateSchema;
  data: Record<string, any>;
  jobName?: string;
  /** 与模板列表一致：可为具体打印机名或 __system_default__；缺省读 localStorage */
  printerSelection?: string;
}): Promise<void> {
  const fullHtml = await renderNativePrintHtml(params.schema, params.data);
  const inner = extractBodyInnerHtmlFromFullDocument(fullHtml);
  const pdfBase64 = await buildPdfBase64FromHtmlFragment(inner, params.schema.page.width, params.schema.page.height, {
    paginate: true,
  });
  const printers = await fetchPrintDotPrinters();
  const fromStore =
    params.printerSelection ?? localStorage.getItem(PRINT_TEMPLATE_SELECTED_PRINTER_KEY) ?? '__system_default__';
  const resolved = resolvePrintDotPrinterName(fromStore, printers);
  if (!resolved) {
    throw new Error('未解析到可用打印机：请在模板列表选择打印机，或启动 PrintDot 后刷新打印机列表');
  }
  const result = await printDotSendPdf({
    printer: resolved,
    pdfBase64,
    jobName: params.jobName,
    timeoutMs: 180000,
  });
  if (!result.ok) {
    throw new Error(result.message || 'PrintDot 打印失败');
  }
}