Start implementing a config file

config/default.json

@@ -0,0 +1,4 @@
+{
+  "ip": "192.168.1.53",
+  "debug": false
+}

package.json

@@ -46,13 +46,15 @@
   },
   "license": "MIT",
   "devDependencies": {
+    "@istanbuljs/nyc-config-typescript": "^1.0.2",
     "@types/bonjour": "^3.5.10",
     "@types/chai": "^4.3.1",
+    "@types/chai-string": "^1.4.2",
+    "@types/config": "^0.0.41",
     "@types/dateformat": "^5.0.0",
     "@types/mocha": "^9.1.1",
     "@types/node": "^18.0.0",
     "@types/xml2js": "^0.4.11",
-    "@types/chai-string": "^1.4.2",
     "chai": "^4.3.6",
     "chai-string": "^1.5.0",
     "codecov": "^3.8.3",
@@ -64,13 +66,13 @@
     "ts-mockito": "^2.6.1",
     "ts-node": "^10.8.2",
     "typescript": "^4.7.4",
-    "yarn": "^1.22.19",
-    "@istanbuljs/nyc-config-typescript": "^1.0.2"
+    "yarn": "^1.22.19"
   },
   "dependencies": {
     "axios": "^0.27.2",
     "bonjour": "^3.5.0",
     "commander": "^9.3.0",
+    "config": "^3.3.7",
     "dateformat": "^4.6.3",
     "jspdf": "^2.5.1",
     "xml2js": "^0.4.23"

src/index.ts

@@ -7,6 +7,7 @@ import os from "os";
 import fs from "fs/promises";
 import { Command } from "commander";
 import Bonjour from "bonjour";
+import config from "config";
 
 import Destination from "./Destination";
 import ScanJobSettings from "./ScanJobSettings";
@@ -21,8 +22,6 @@ import { createPdfFrom, ScanContent, ScanPage } from "./ScanContent";
 import WalkupScanToCompCaps from "./WalkupScanToCompCaps";
 import { DeviceCapabilities } from "./DeviceCapabilities";
 
-const program = new Command();
-
 function delay(t: number): Promise<void> {
   return new Promise(function (resolve) {
     setTimeout(resolve, t);
@@ -201,7 +200,8 @@ async function handleProcessingState(
   inputSource: "Adf" | "Platen",
   folder: string,
   scanCount: number,
-  currentPageNumber: number
+  currentPageNumber: number,
+  filePattern: string | undefined
 ): Promise<ScanPage | null> {
   if (
     job.pageState == "ReadyToUpload" &&
@@ -217,7 +217,7 @@ async function handleProcessingState(
       folder,
       scanCount,
       currentPageNumber,
-      program.opts().pattern,
+      filePattern,
       "jpg"
     );
     const filePath = await HPApi.downloadPage(
@@ -275,7 +275,8 @@ async function executeScanJob(
   inputSource: "Adf" | "Platen",
   folder: string,
   scanCount: number,
-  scanJobContent: ScanContent
+  scanJobContent: ScanContent,
+  filePattern: string | undefined
 ): Promise<"Completed" | "Canceled"> {
   const jobUrl = await HPApi.postJob(scanJobSettings);
 
@@ -295,7 +296,8 @@ async function executeScanJob(
         inputSource,
         folder,
         scanCount,
-        scanJobContent.elements.length + 1
+        scanJobContent.elements.length + 1,
+        filePattern
       );
       job = await HPApi.getJob(jobUrl);
       if (page != null && job.jobState != "Canceled") {
@@ -348,14 +350,16 @@ async function executeScanJobs(
   scanCount: number,
   scanJobContent: ScanContent,
   firstEvent: Event,
-  deviceCapabilities: DeviceCapabilities
+  deviceCapabilities: DeviceCapabilities,
+  filePattern: string | undefined
 ) {
   let jobState = await executeScanJob(
     scanJobSettings,
     inputSource,
     folder,
     scanCount,
-    scanJobContent
+    scanJobContent,
+    filePattern
   );
   let lastEvent = firstEvent;
   if (
@@ -379,7 +383,8 @@ async function executeScanJobs(
         inputSource,
         folder,
         scanCount,
-        scanJobContent
+        scanJobContent,
+        filePattern
       );
       if (jobState !== "Completed") {
         return;
@@ -402,13 +407,14 @@ async function executeScanJobs(
 async function mergeToPdf(
   folder: string,
   scanCount: number,
-  scanJobContent: ScanContent
+  scanJobContent: ScanContent,
+  filePattern: string | undefined
 ): Promise<string | null> {
   if (scanJobContent.elements.length > 0) {
     const pdfFilePath = PathHelper.getFileForScan(
       folder,
       scanCount,
-      program.opts().pattern,
+      filePattern,
       "pdf"
     );
     await createPdfFrom(scanJobContent, pdfFilePath);
@@ -454,7 +460,8 @@ async function saveScan(
   folder: string,
   tempFolder: string,
   scanCount: number,
-  deviceCapabilities: DeviceCapabilities
+  deviceCapabilities: DeviceCapabilities,
+  filePattern: string | undefined
 ): Promise<void> {
   if (event.compEventURI) {
     const proceedToScan = await waitScanRequest(event.compEventURI);
@@ -511,15 +518,21 @@ async function saveScan(
     scanCount,
     scanJobContent,
     event,
-    deviceCapabilities
+    deviceCapabilities,
+    filePattern
   );
 
   console.log(
     `Scan of page(s) completed totalPages: ${scanJobContent.elements.length}:`
   );
 
   if (toPdf) {
-    const pdfFilePath = await mergeToPdf(folder, scanCount, scanJobContent);
+    const pdfFilePath = await mergeToPdf(
+      folder,
+      scanCount,
+      scanJobContent,
+      filePattern
+    );
     displayPdfScan(pdfFilePath, scanJobContent);
   } else {
     displayJpegScan(scanJobContent);
@@ -569,13 +582,19 @@ async function readDeviceCapabilities(): Promise<DeviceCapabilities> {
   };
 }
 
+type DirectoryConfig = {
+  directory: string | undefined;
+  tempDirectory: string | undefined;
+  filePattern: string | undefined;
+};
+
 let iteration = 0;
-async function init() {
-  const folder = await PathHelper.getOutputFolder(program.opts().directory);
+async function init(directoryConfig: DirectoryConfig) {
+  const folder = await PathHelper.getOutputFolder(directoryConfig.directory);
   console.log(`Target folder: ${folder}`);
 
   const tempFolder = await PathHelper.getOutputFolder(
-    program.opts().tempDirectory
+    directoryConfig.tempDirectory
   );
   console.log(`Temp folder: ${tempFolder}`);
 
@@ -599,7 +618,14 @@ async function init() {
 
       scanCount++;
       console.log(`Scan event captured, saving scan #${scanCount}`);
-      await saveScan(event, folder, tempFolder, scanCount, deviceCapabilities);
+      await saveScan(
+        event,
+        folder,
+        tempFolder,
+        scanCount,
+        deviceCapabilities,
+        directoryConfig.filePattern
+      );
     } catch (e) {
       errorCount++;
       console.error(e);
@@ -614,7 +640,7 @@ async function init() {
   }
 }
 
-function findOfficejetIp(): Promise<string> {
+function findOfficejetIp(deviceNamePrefix: string): Promise<string> {
   return new Promise((resolve) => {
     const bonjour = Bonjour();
     console.log("Searching printer...");
@@ -625,7 +651,7 @@ function findOfficejetIp(): Promise<string> {
       (service) => {
         console.log(".");
         if (
-          service.name.startsWith(program.opts().name) &&
+          service.name.startsWith(deviceNamePrefix) &&
           service.port === 80 &&
           service.type === "http" &&
           service.addresses != null
@@ -641,16 +667,20 @@ function findOfficejetIp(): Promise<string> {
   });
 }
 
+function getConfig<T>(name: string): T | undefined {
+  return config.has(name) ? config.get<T>(name) : undefined;
+}
+
 async function main() {
+  const program = new Command();
   program.option(
     "-ip, --address <ip>",
     "IP address of the printer (this overrides -p)"
   );
   program.option(
     "-n, --name <name>",
     "Name of the printer for service discovery",
-    "HP Smart Tank Plus 570 series"
-  ); //or i.e. 'Deskjet 3520 series'
+  ); // i.e. 'Deskjet 3520 series'
   program.option(
     "-d, --directory <dir>",
     "Directory where scans are saved (defaults to /tmp/scan-to-pc<random>)"
@@ -666,17 +696,23 @@ async function main() {
   program.option("-D, --debug", "Enable debug");
   program.parse(process.argv);
 
-  let ip = program.opts().address || "192.168.1.53";
+  let ip = program.opts().address || getConfig("ip");
   if (!ip) {
-    ip = await findOfficejetIp();
+    const name = program.opts().name || getConfig("name");
+    ip = await findOfficejetIp(name || "HP Smart Tank Plus 570 series");
   }
   console.log(`Using device ip: ${ip}`);
 
-  const debug = program.opts().debug != null;
+  const debug = program.opts().debug != null ? true : getConfig<boolean>("debug") || false;
 
   HPApi.setDebug(debug);
   HPApi.setPrinterIP(ip);
-  await init();
+  const directoryConfig = {
+    directory: program.opts().directory || getConfig("directory"),
+    tempDirectory: program.opts().tempDirectory || getConfig("tempDirectory"),
+    filePattern: program.opts().pattern || getConfig("pattern"),
+  }
+  await init(directoryConfig);
 }
 
 main();

yarn.lock

@@ -290,6 +290,11 @@
   version "4.3.1"
   resolved "https://registry.npmjs.org/@types/chai/-/chai-4.3.1.tgz"
 
+"@types/config@^0.0.41":
+  version "0.0.41"
+  resolved "https://registry.yarnpkg.com/@types/config/-/config-0.0.41.tgz#c8237ab09730380801f3643beaefa077ca5f3c28"
+  integrity sha512-HjXUmIld0gwvyG8MU/17QtLzOyuMX4jbGuijmS9sWsob5xxgZ/hY9cbRCaHIHqTQ3HMLhwS3F8uXq3Bt9zgzHA==
+
 "@types/dateformat@^5.0.0":
   version "5.0.0"
   resolved "https://registry.npmjs.org/@types/dateformat/-/dateformat-5.0.0.tgz"
@@ -665,6 +670,13 @@ concat-map@0.0.1:
   version "0.0.1"
   resolved "https://registry.npmjs.org/concat-map/-/concat-map-0.0.1.tgz"
 
+config@^3.3.7:
+  version "3.3.7"
+  resolved "https://registry.yarnpkg.com/config/-/config-3.3.7.tgz#4310410dc2bf4e0effdca21a12a4035860a24ee4"
+  integrity sha512-mX/n7GKDYZMqvvkY6e6oBY49W8wxdmQt+ho/5lhwFDXqQW9gI+Ahp8EKp8VAbISPnmf2+Bv5uZK7lKXZ6pf1aA==
+  dependencies:
+    json5 "^2.1.1"
+
 convert-source-map@^1.7.0:
   version "1.8.0"
   resolved "https://registry.npmjs.org/convert-source-map/-/convert-source-map-1.8.0.tgz"
@@ -1351,7 +1363,7 @@ json-stable-stringify-without-jsonify@^1.0.1:
   version "1.0.1"
   resolved "https://registry.npmjs.org/json-stable-stringify-without-jsonify/-/json-stable-stringify-without-jsonify-1.0.1.tgz"
 
-json5@^2.2.1:
+json5@^2.1.1, json5@^2.2.1:
   version "2.2.1"
   resolved "https://registry.npmjs.org/json5/-/json5-2.2.1.tgz"