131 lines
3.2 KiB
JavaScript
131 lines
3.2 KiB
JavaScript
const possibleChars = "ABCDESFHIJKLMNOPQRSTUVWXYZ1234567890";
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const possibleCharsLength = possibleChars.length;
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function randomId(length) {
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let ans = "";
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for (; length > 0; length--) {
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let idx = Math.floor(Math.random() * possibleCharsLength);
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ans += possibleChars[idx];
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}
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return ans;
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}
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//Generating random preset, to identify possible doubles
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const preset = randomId(3);
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console.log("The random preset for this set is:", preset);
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console.log("Make sure this was not used before and if so, retry");
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var etk = {};
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for (var i = 0; i < 12 * 100; i++) {
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let id = preset + randomId(6);
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if (etk[id] !== undefined) i--;
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else etk[id] = 1;
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}
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var ets = Object.keys(etk);
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const PDFDocument = require("pdfkit");
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const doc = new PDFDocument({ size: "A4", autoFirstPage: false });
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const fs = require("fs");
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//const barcode = require("barcode");
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const bwipjs = require("bwip-js");
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const ewidth = 277;
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const eheight = 119;
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const mgap = 8.49;
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doc.pipe(fs.createWriteStream(__dirname + "/etiketten.pdf"));
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//A4 2480 x 3508
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//doc.addPage({margin: 0});
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//S = 1134
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//A4: [595.28, 841.89],
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// 28.29
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//o w:14,15
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//o h: 62,24
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// <------------> (277)
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// |
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// | (119)
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// |
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function print(xo, yo, bc) {
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//doc.rect(xo, yo, ewidth, eheight);
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//doc.stroke();
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//Name Field
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doc.fontSize(16);
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var h = yo + (eheight / 4) * 3;
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doc.text("Name", xo + 5, h + 6);
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doc.moveTo(xo + 5, h).lineTo(xo + (ewidth / 4) * 2.2, h);
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doc.stroke();
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//Price Field;
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doc.text("Preis", xo + (ewidth / 4) * 2.4 + 5, h + 6);
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doc.moveTo(xo + (ewidth / 4) * 2.4 + 5, h).lineTo(xo + ewidth - 10, h);
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doc.stroke();
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//Sid Field:
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var h = yo + eheight / 4 + 10;
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doc.text("SchülerId", xo + (ewidth / 4) * 2.4 + 5, h + 6);
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doc.moveTo(xo + (ewidth / 4) * 2.4 + 5, h).lineTo(xo + ewidth - 10, h);
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doc.stroke();
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//Barcode:
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var imagewidth = (ewidth / 4) * 2.2;
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var imageheight = 20;
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return new Promise((resolve, reject) => {
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bwipjs.toBuffer(
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{
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bcid: "code128",
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text: bc,
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scale: 1,
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height: imageheight,
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width: imagewidth,
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includetext: true,
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textxalign: "center",
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textsize: 15,
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},
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(err, png) => {
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if (err) return console.log(err);
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doc.image(png, xo + 5, yo + 5, { height: 50, width: imagewidth });
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resolve();
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}
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);
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});
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}
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function page(items, callback, index) {
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//bekommt ein array mit 12 ids
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doc.addPage({ margin: 0 });
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var j = 0;
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var proms = [];
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for (var i = 0; i < 6; i++) {
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if (j >= items.length) break;
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proms.push(print(14.15, 62.24 + i * eheight, items[j]));
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j++;
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}
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for (var i = 0; i < 6; i++) {
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if (j >= items.length) break;
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proms.push(print(14.15 + ewidth + mgap, 62.24 + i * eheight, items[j]));
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j++;
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}
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Promise.all(proms).then(() => {
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callback(index + 12);
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});
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}
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function printpack(index) {
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if (index >= ets.length) {
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doc.end();
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return;
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}
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var i = [];
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for (var g = 0; g < 12; g++) {
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if (index + g >= ets.length) break;
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i.push(ets[index + g]);
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}
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page(i, printpack, index);
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}
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printpack(0);
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