239 lines
8.3 KiB
JavaScript
239 lines
8.3 KiB
JavaScript
// main.js
|
|
const { app, BrowserWindow } = require('electron');
|
|
const fs = require("fs");
|
|
const path = require("path");
|
|
const chokidar = require("chokidar");
|
|
const axios = require("axios");
|
|
|
|
let OUT_DIR; // endgültiger Eingangsordner (wird in app.whenReady gesetzt)
|
|
let IMG_DIR; // Ausgabeordner für PNGs (History)
|
|
|
|
let win;
|
|
function createWindow() {
|
|
win = new BrowserWindow({
|
|
width: 1000,
|
|
height: 800,
|
|
webPreferences: { nodeIntegration: true, contextIsolation: false }
|
|
});
|
|
win.loadFile(path.join(__dirname, "index.html"));
|
|
}
|
|
|
|
app.whenReady().then(() => {
|
|
// Versuche zuerst C:\ZIR_Output (praktisch für Windows Local Port)
|
|
const preferedRoot = "C:\\ZIR_Output";
|
|
let dataDir = app.getPath("userData"); // fallback
|
|
|
|
try {
|
|
// Versuch: C:\ZIR_Output anlegen (falls möglich)
|
|
if (!fs.existsSync(preferedRoot)) {
|
|
fs.mkdirSync(preferedRoot, { recursive: true });
|
|
}
|
|
OUT_DIR = preferedRoot;
|
|
} catch (e) {
|
|
// Falls es schiefgeht (Rechte), fallback in userData
|
|
OUT_DIR = path.join(dataDir, "ZIR_Input");
|
|
}
|
|
|
|
// IMG_DIR im userData (schützt vor Schreibrechten)
|
|
IMG_DIR = path.join(dataDir, "zpl_out");
|
|
|
|
// Ordner anlegen, falls nicht existierend
|
|
try { if (!fs.existsSync(OUT_DIR)) fs.mkdirSync(OUT_DIR, { recursive: true }); } catch(e) {}
|
|
try { if (!fs.existsSync(IMG_DIR)) fs.mkdirSync(IMG_DIR, { recursive: true }); } catch(e) {}
|
|
|
|
console.log("ZIR Input (Eingangsordner):", OUT_DIR);
|
|
console.log("ZIR Output (PNG-Ordner):", IMG_DIR);
|
|
|
|
createWindow();
|
|
|
|
const watcher = chokidar.watch(OUT_DIR, { ignoreInitial: true, awaitWriteFinish: {stabilityThreshold: 500, pollInterval: 100} });
|
|
watcher.on("add", file => {
|
|
if (!file.toLowerCase().endsWith(".zpl")) return;
|
|
processFile(file);
|
|
});
|
|
watcher.on("change", file => {
|
|
if (!file.toLowerCase().endsWith(".zpl")) return;
|
|
processFile(file);
|
|
});
|
|
|
|
app.on('activate', () => { if (BrowserWindow.getAllWindows().length === 0) createWindow(); });
|
|
});
|
|
|
|
app.on('window-all-closed', () => { if (process.platform !== 'darwin') app.quit(); });
|
|
|
|
/* --- Helferfunktionen --- */
|
|
|
|
function extractZPL(raw) {
|
|
const start = raw.indexOf("^XA");
|
|
const end = raw.lastIndexOf("^XZ");
|
|
if (start >= 0 && end >= 0 && end > start) return raw.slice(start, end + 3);
|
|
if (start >= 0) return raw.slice(start) + (raw.includes("^XZ") ? "" : "^XZ");
|
|
return "^XA\n" + raw + "\n^XZ";
|
|
}
|
|
|
|
function cleanControlChars(s) {
|
|
return s.replace(/[\x00-\x1F]/g, '');
|
|
}
|
|
|
|
function parsePWLL(zpl) {
|
|
const pwMatch = zpl.match(/\^PW\s*?(\d+)/i) || zpl.match(/\^PW(\d+)/i);
|
|
const llMatch = zpl.match(/\^LL\s*?(\d+)/i) || zpl.match(/\^LL(\d+)/i);
|
|
const pw = pwMatch ? parseInt(pwMatch[1], 10) : null;
|
|
const ll = llMatch ? parseInt(llMatch[1], 10) : null;
|
|
return { pw, ll };
|
|
}
|
|
|
|
function parseMaxFO(zpl) {
|
|
let maxX = 0, maxY = 0;
|
|
const re = /\^FO\s*?(\d+)\s*,\s*(\d+)/g;
|
|
let m;
|
|
while ((m = re.exec(zpl)) !== null) {
|
|
const x = parseInt(m[1], 10);
|
|
const y = parseInt(m[2], 10);
|
|
if (!isNaN(x) && x > maxX) maxX = x;
|
|
if (!isNaN(y) && y > maxY) maxY = y;
|
|
}
|
|
return { maxX, maxY };
|
|
}
|
|
|
|
function dotsToInches(dots, dpi) {
|
|
if (!dots || !dpi) return null;
|
|
return dots / dpi;
|
|
}
|
|
|
|
function fmtInches(v) {
|
|
return (Math.round(v * 100) / 100).toString();
|
|
}
|
|
|
|
async function tryLabelaryRender(zpl, printerKey, widthInches, heightInches) {
|
|
const url = `http://api.labelary.com/v1/printers/${printerKey}/labels/${widthInches}x${heightInches}/0/`;
|
|
try {
|
|
const resp = await axios.post(url, zpl, {
|
|
headers: { "Accept": "image/png" },
|
|
responseType: "arraybuffer",
|
|
timeout: 15000
|
|
});
|
|
return { ok: true, buffer: resp.data };
|
|
} catch (err) {
|
|
const status = err.response ? err.response.status : null;
|
|
return { ok: false, status, error: err.message };
|
|
}
|
|
}
|
|
|
|
/* --- Größen & Druckeroptionen --- */
|
|
|
|
const STANDARD_SIZES = [
|
|
{ w: 8.27, h: 11.69, name: "A4" },
|
|
{ w: 8.5, h: 11, name: "Letter" },
|
|
{ w: 4, h: 6, name: "4x6" },
|
|
{ w: 3, h: 2, name: "3x2" },
|
|
{ w: 4, h: 3, name: "4x3" },
|
|
{ w: 2, h: 6, name: "2x6" },
|
|
{ w: 1, h: 1, name: "1x1" }
|
|
];
|
|
|
|
const PRINTER_OPTIONS = [
|
|
{ key: "8dpmm", dpi: 203 },
|
|
{ key: "12dpmm", dpi: 305 }
|
|
];
|
|
|
|
/* --- Hauptverarbeitung --- */
|
|
let busy = false;
|
|
async function processFile(filePath) {
|
|
if (busy) {
|
|
setTimeout(() => processFile(filePath), 400);
|
|
return;
|
|
}
|
|
busy = true;
|
|
|
|
try {
|
|
console.log("Verarbeite:", filePath);
|
|
let raw = fs.readFileSync(filePath, "utf-8");
|
|
raw = cleanControlChars(raw);
|
|
let zpl = extractZPL(raw);
|
|
|
|
const { pw, ll } = parsePWLL(zpl);
|
|
const { maxX, maxY } = parseMaxFO(zpl);
|
|
console.log("Parsed PW/LL:", pw, ll, "maxFO:", maxX, maxY);
|
|
|
|
// sizesToTry aufbauen (Priorität: PW/LL -> geschätzte große Formate -> Standardgrößen)
|
|
const sizesToTry = [];
|
|
|
|
if (pw && ll) {
|
|
for (const p of PRINTER_OPTIONS) {
|
|
const wIn = dotsToInches(pw, p.dpi);
|
|
const hIn = dotsToInches(ll, p.dpi);
|
|
if (wIn && hIn) {
|
|
sizesToTry.push({ w: wIn, h: hIn, printer: p });
|
|
sizesToTry.push({ w: hIn, h: wIn, printer: p, rotated: true });
|
|
}
|
|
}
|
|
}
|
|
|
|
const estDefaultDPI = 203;
|
|
const estWIn = maxX ? dotsToInches(maxX + 100, estDefaultDPI) : null; // margin
|
|
const estHIn = maxY ? dotsToInches(maxY + 100, estDefaultDPI) : null;
|
|
|
|
if (estWIn && estHIn) {
|
|
if (estWIn > 6 || estHIn > 8 || estWIn > 8 || estHIn > 6) {
|
|
for (const p of PRINTER_OPTIONS) {
|
|
sizesToTry.push({ w: 8.27, h: 11.69, printer: p, name: "A4" });
|
|
sizesToTry.push({ w: 11.69, h: 8.27, printer: p, name: "A4_rot" });
|
|
sizesToTry.push({ w: 8.5, h: 11, printer: p, name: "Letter" });
|
|
sizesToTry.push({ w: 11, h: 8.5, printer: p, name: "Letter_rot" });
|
|
}
|
|
}
|
|
}
|
|
|
|
for (const p of PRINTER_OPTIONS) {
|
|
for (const s of STANDARD_SIZES) {
|
|
const exists = sizesToTry.some(x => Math.abs(x.w - s.w) < 0.01 && Math.abs(x.h - s.h) < 0.01 && x.printer.key === p.key);
|
|
if (!exists) sizesToTry.push({ w: s.w, h: s.h, printer: p, name: s.name || `${s.w}x${s.h}` });
|
|
}
|
|
}
|
|
|
|
// Duplikate entfernen & Reihenfolge behalten
|
|
const uniqSizes = [];
|
|
const seen = new Set();
|
|
for (const s of sizesToTry) {
|
|
const key = `${s.printer.key}-${Math.round(s.w*100)}/${Math.round(s.h*100)}`;
|
|
if (!seen.has(key)) { seen.add(key); uniqSizes.push(s); }
|
|
}
|
|
|
|
// Versuche rendern
|
|
let renderResult = null;
|
|
for (const s of uniqSizes) {
|
|
const wStr = fmtInches(s.w);
|
|
const hStr = fmtInches(s.h);
|
|
console.log(`Versuche rendern: printer=${s.printer.key} size=${wStr}x${hStr} (${s.name || ""})`);
|
|
renderResult = await tryLabelaryRender(zpl, s.printer.key, wStr, hStr);
|
|
if (renderResult.ok) { console.log(`Erfolg mit ${s.printer.key} ${wStr}x${hStr}`); break; }
|
|
else { console.log(`Fehler (${renderResult.status}) mit ${s.printer.key} ${wStr}x${hStr}`); }
|
|
}
|
|
|
|
if (!renderResult || !renderResult.ok) {
|
|
console.error("Alle Render-Versuche fehlgeschlagen, Abbruch.");
|
|
busy = false;
|
|
return;
|
|
}
|
|
|
|
// PNG speichern — neue Datei mit Timestamp (History)
|
|
const pngBuffer = renderResult.buffer;
|
|
const timestamp = Date.now();
|
|
const outFile = path.join(IMG_DIR, `label-${timestamp}.png`);
|
|
fs.writeFileSync(outFile, pngBuffer);
|
|
console.log("PNG erstellt:", outFile);
|
|
|
|
// ZPL-Datei löschen (optional)
|
|
try { fs.unlinkSync(filePath); } catch(e){ console.warn("Konnte ZPL nicht löschen:", e.message); }
|
|
|
|
// Fenster benachrichtigen (sende neuen PNG-Pfad)
|
|
win.webContents.send("show-png", outFile);
|
|
|
|
} catch (err) {
|
|
console.error("Fehler beim Rendern:", err && err.message ? err.message : err);
|
|
} finally {
|
|
busy = false;
|
|
}
|
|
}
|