@digimuza/pdf-tools/lib/pdf.js

PDF generation library & generation utilities

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.generate = exports.mergePDF = void 0;
const tslib_1 = require("tslib");
const P = (0, tslib_1.__importStar)(require("ts-prime"));
const Jet = (0, tslib_1.__importStar)(require("fs-jetpack"));
const tmp_1 = require("tmp");
const utils_1 = require("@digimuza/pdf-components/lib/utils");
const ix_1 = require("ix");
const html_to_pdf = require('./html-to-pdf.js');
const pdf_merger_js_1 = (0, tslib_1.__importDefault)(require("pdf-merger-js"));
async function mergePDF(pdfList, options) {
    var _a;
    const merger = new pdf_merger_js_1.default();
    for (const pdf of pdfList) {
        merger.add(pdf);
    }
    await merger.save(options.output);
    (_a = options.logger) === null || _a === void 0 ? void 0 : _a.info(`PDF stored to ${options.output}`);
}
exports.mergePDF = mergePDF;
async function singlePdf(content) {
    const format = P.isObject(content.format)
        ? Object.assign({}, (0, utils_1.flipDimensions)([content.format.width, content.format.height], true)) : {
        format: content.format,
    };
    const result = await P.canFail(() => html_to_pdf.generatePdf({
        content: content.content,
    }, Object.assign(Object.assign({}, format), { landscape: content.landscape })));
    if (P.isError(result))
        throw result;
    return result;
}
/**
 *
 * @returns {string} File to generated pdf file
 */
async function generate(args) {
    let progress = 0;
    const pdfList = await ix_1.AsyncIterable.from(args.content.map((e, index) => (Object.assign(Object.assign({}, e), { index }))))
        .buffer(3)
        .map((pdf) => {
        return Promise.all(pdf.map((c) => {
            var _a;
            (_a = args.logger) === null || _a === void 0 ? void 0 : _a.info(`Generating (${c.index + 1}/${args.content.length}) page...`);
            return singlePdf(c);
        }));
    })
        .toArray();
    const mergedPDF = P.flatten(pdfList);
    const name = args.output ? Jet.path(process.cwd(), args.output) : (0, tmp_1.tmpNameSync)();
    await mergePDF(mergedPDF, {
        logger: args.logger,
        output: name,
    });
    return name;
}
exports.generate = generate;