Change to typescript. Tests done up to layers

package-lock.json

@@ -17,10 +17,14 @@
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@@ -2225,6 +2620,19 @@
         "acorn": "^6.0.0 || ^7.0.0 || ^8.0.0"
       }
     },
+    "node_modules/acorn-walk": {
+      "version": "8.3.4",
+      "resolved": "https://registry.npmjs.org/acorn-walk/-/acorn-walk-8.3.4.tgz",
+      "integrity": "sha512-ueEepnujpqee2o5aIYnvHU6C0A42MNdsIDeqy5BydrkuC5R1ZuUFnm27EeFJGoEHJQgn3uleRvmTXaJgfXbt4g==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "acorn": "^8.11.0"
+      },
+      "engines": {
+        "node": ">=0.4.0"
+      }
+    },
     "node_modules/adm-zip": {
       "version": "0.5.16",
       "resolved": "https://registry.npmjs.org/adm-zip/-/adm-zip-0.5.16.tgz",
@@ -2306,6 +2714,13 @@
         "node": ">= 8"
       }
     },
+    "node_modules/arg": {
+      "version": "4.1.3",
+      "resolved": "https://registry.npmjs.org/arg/-/arg-4.1.3.tgz",
+      "integrity": "sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/argparse": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/argparse/-/argparse-2.0.1.tgz",
@@ -2769,6 +3184,13 @@
       "resolved": "https://registry.npmjs.org/core-util-is/-/core-util-is-1.0.2.tgz",
       "integrity": "sha1-tf1UIgqivFq1eqtxQMlAdUUDwac="
     },
+    "node_modules/create-require": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/create-require/-/create-require-1.1.1.tgz",
+      "integrity": "sha512-dcKFX3jn0MpIaXjisoRvexIJVEKzaq7z2rZKxf+MSr9TkdmHmsU4m2lcLojrj/FHl8mk5VxMmYA+ftRkP/3oKQ==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/cross-spawn": {
       "version": "7.0.6",
       "resolved": "https://registry.npmjs.org/cross-spawn/-/cross-spawn-7.0.6.tgz",
@@ -2853,6 +3275,16 @@
         "node": ">=8"
       }
     },
+    "node_modules/diff": {
+      "version": "4.0.2",
+      "resolved": "https://registry.npmjs.org/diff/-/diff-4.0.2.tgz",
+      "integrity": "sha512-58lmxKSA4BNyLz+HHMUzlOEpg09FV+ev6ZMe3vJihgdxzgcwZ8VoEEPmALCZG9LmqfVoNMMKpttIYTVG6uDY7A==",
+      "dev": true,
+      "license": "BSD-3-Clause",
+      "engines": {
+        "node": ">=0.3.1"
+      }
+    },
     "node_modules/eastasianwidth": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/eastasianwidth/-/eastasianwidth-0.2.0.tgz",
@@ -3159,6 +3591,36 @@
       "integrity": "sha512-f3qQ9oQy9j2AhBe/H9VC91wLmKBCCU/gDOnKNAYG5hswO7BLKj09Hc5HYNz9cGI++xlpDCIgDaitVs03ATR84Q==",
       "dev": true
     },
+    "node_modules/fast-glob": {
+      "version": "3.3.3",
+      "resolved": "https://registry.npmjs.org/fast-glob/-/fast-glob-3.3.3.tgz",
+      "integrity": "sha512-7MptL8U0cqcFdzIzwOTHoilX9x5BrNqye7Z/LuC7kCMRio1EMSyqRK3BEAUD7sXRq4iT4AzTVuZdhgQ2TCvYLg==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@nodelib/fs.stat": "^2.0.2",
+        "@nodelib/fs.walk": "^1.2.3",
+        "glob-parent": "^5.1.2",
+        "merge2": "^1.3.0",
+        "micromatch": "^4.0.8"
+      },
+      "engines": {
+        "node": ">=8.6.0"
+      }
+    },
+    "node_modules/fast-glob/node_modules/glob-parent": {
+      "version": "5.1.2",
+      "resolved": "https://registry.npmjs.org/glob-parent/-/glob-parent-5.1.2.tgz",
+      "integrity": "sha512-AOIgSQCepiJYwP3ARnGx+5VnTu2HBYdzbGP45eLw1vr3zB3vZLeyed1sC9hnbcOc9/SrMyM5RPQrkGz4aS9Zow==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "is-glob": "^4.0.1"
+      },
+      "engines": {
+        "node": ">= 6"
+      }
+    },
     "node_modules/fast-json-stable-stringify": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/fast-json-stable-stringify/-/fast-json-stable-stringify-2.1.0.tgz",
@@ -3172,6 +3634,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/fastq": {
+      "version": "1.19.1",
+      "resolved": "https://registry.npmjs.org/fastq/-/fastq-1.19.1.tgz",
+      "integrity": "sha512-GwLTyxkCXjXbxqIhTsMI2Nui8huMPtnxg7krajPJAjnEG/iiOS7i+zCtWGZR9G0NBKbXKh6X9m9UIsYX/N6vvQ==",
+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "reusify": "^1.0.4"
+      }
+    },
     "node_modules/fb-watchman": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/fb-watchman/-/fb-watchman-2.0.2.tgz",
@@ -3468,25 +3940,19 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "node_modules/globals": {
-      "version": "16.2.0",
-      "resolved": "https://registry.npmjs.org/globals/-/globals-16.2.0.tgz",
-      "integrity": "sha512-O+7l9tPdHCU320IigZZPj5zmRCFG9xHmx9cU8FqU2Rp+JN714seHV+2S9+JslCpY4gJwU2vOGox0wzgae/MCEg==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=18"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
-      }
-    },
     "node_modules/graceful-fs": {
       "version": "4.2.11",
       "resolved": "https://registry.npmjs.org/graceful-fs/-/graceful-fs-4.2.11.tgz",
       "integrity": "sha512-RbJ5/jmFcNNCcDV5o9eTnBLJ/HszWV0P73bc+Ff4nS/rJj+YaS6IGyiOL0VoBYX+l1Wrl3k63h/KrH+nhJ0XvQ==",
       "license": "ISC"
     },
+    "node_modules/graphemer": {
+      "version": "1.4.0",
+      "resolved": "https://registry.npmjs.org/graphemer/-/graphemer-1.4.0.tgz",
+      "integrity": "sha512-EtKwoO6kxCL9WO5xipiHTZlSzBm7WLT627TqC/uVRd0HKmq8NXyebnNYxDoBi7wt8eTWrUrKXCOVaFq9x1kgag==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/has-flag": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-4.0.0.tgz",
@@ -4646,6 +5112,13 @@
         "node": ">=10"
       }
     },
+    "node_modules/make-error": {
+      "version": "1.3.6",
+      "resolved": "https://registry.npmjs.org/make-error/-/make-error-1.3.6.tgz",
+      "integrity": "sha512-s8UhlNe7vPKomQhC1qFelMokr/Sc3AgNbso3n74mVPA5LTZwkB9NlXf4XPamLxJE8h0gh73rM94xvwRT2CVInw==",
+      "dev": true,
+      "license": "ISC"
+    },
     "node_modules/makeerror": {
       "version": "1.0.12",
       "resolved": "https://registry.npmjs.org/makeerror/-/makeerror-1.0.12.tgz",
@@ -4663,6 +5136,16 @@
       "dev": true,
       "license": "MIT"
     },
+    "node_modules/merge2": {
+      "version": "1.4.1",
+      "resolved": "https://registry.npmjs.org/merge2/-/merge2-1.4.1.tgz",
+      "integrity": "sha512-8q7VEgMJW4J8tcfVPy8g09NcQwZdbwFEqhe/WZkoIzjn/3TGDwtOCYtXGxA3O8tPzpczCCDgv+P2P5y00ZJOOg==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">= 8"
+      }
+    },
     "node_modules/micromatch": {
       "version": "4.0.8",
       "resolved": "https://registry.npmjs.org/micromatch/-/micromatch-4.0.8.tgz",
@@ -5239,6 +5722,17 @@
         "node": ">=4"
       }
     },
+    "node_modules/reusify": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/reusify/-/reusify-1.1.0.tgz",
+      "integrity": "sha512-g6QUff04oZpHs0eG5p83rFLhHeV00ug/Yf9nZM6fLeUrPguBTkTQOdpAWWspMh55TZfVQDPaN3NQJfbVRAxdIw==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "iojs": ">=1.0.0",
+        "node": ">=0.10.0"
+      }
+    },
     "node_modules/run-parallel": {
       "version": "1.1.10",
       "resolved": "https://registry.npmjs.org/run-parallel/-/run-parallel-1.1.10.tgz",
@@ -5747,6 +6241,63 @@
         "node": ">=8.0"
       }
     },
+    "node_modules/ts-api-utils": {
+      "version": "2.1.0",
+      "resolved": "https://registry.npmjs.org/ts-api-utils/-/ts-api-utils-2.1.0.tgz",
+      "integrity": "sha512-CUgTZL1irw8u29bzrOD/nH85jqyc74D6SshFgujOIA7osm2Rz7dYH77agkx7H4FBNxDq7Cjf+IjaX/8zwFW+ZQ==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=18.12"
+      },
+      "peerDependencies": {
+        "typescript": ">=4.8.4"
+      }
+    },
+    "node_modules/ts-node": {
+      "version": "10.9.2",
+      "resolved": "https://registry.npmjs.org/ts-node/-/ts-node-10.9.2.tgz",
+      "integrity": "sha512-f0FFpIdcHgn8zcPSbf1dRevwt047YMnaiJM3u2w2RewrB+fob/zePZcrOyQoLMMO7aBIddLcQIEK5dYjkLnGrQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@cspotcode/source-map-support": "^0.8.0",
+        "@tsconfig/node10": "^1.0.7",
+        "@tsconfig/node12": "^1.0.7",
+        "@tsconfig/node14": "^1.0.0",
+        "@tsconfig/node16": "^1.0.2",
+        "acorn": "^8.4.1",
+        "acorn-walk": "^8.1.1",
+        "arg": "^4.1.0",
+        "create-require": "^1.1.0",
+        "diff": "^4.0.1",
+        "make-error": "^1.1.1",
+        "v8-compile-cache-lib": "^3.0.1",
+        "yn": "3.1.1"
+      },
+      "bin": {
+        "ts-node": "dist/bin.js",
+        "ts-node-cwd": "dist/bin-cwd.js",
+        "ts-node-esm": "dist/bin-esm.js",
+        "ts-node-script": "dist/bin-script.js",
+        "ts-node-transpile-only": "dist/bin-transpile.js",
+        "ts-script": "dist/bin-script-deprecated.js"
+      },
+      "peerDependencies": {
+        "@swc/core": ">=1.2.50",
+        "@swc/wasm": ">=1.2.50",
+        "@types/node": "*",
+        "typescript": ">=2.7"
+      },
+      "peerDependenciesMeta": {
+        "@swc/core": {
+          "optional": true
+        },
+        "@swc/wasm": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/tslib": {
       "version": "2.8.1",
       "resolved": "https://registry.npmjs.org/tslib/-/tslib-2.8.1.tgz",
@@ -5790,6 +6341,43 @@
         "url": "https://github.com/sponsors/sindresorhus"
       }
     },
+    "node_modules/typescript": {
+      "version": "5.8.3",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.8.3.tgz",
+      "integrity": "sha512-p1diW6TqL9L07nNxvRMM7hMMw4c5XOo/1ibL4aAIGmSAt9slTE1Xgw5KWuof2uTOvCg9BY7ZRi+GaF+7sfgPeQ==",
+      "dev": true,
+      "license": "Apache-2.0",
+      "bin": {
+        "tsc": "bin/tsc",
+        "tsserver": "bin/tsserver"
+      },
+      "engines": {
+        "node": ">=14.17"
+      }
+    },
+    "node_modules/typescript-eslint": {
+      "version": "8.34.0",
+      "resolved": "https://registry.npmjs.org/typescript-eslint/-/typescript-eslint-8.34.0.tgz",
+      "integrity": "sha512-MRpfN7uYjTrTGigFCt8sRyNqJFhjN0WwZecldaqhWm+wy0gaRt8Edb/3cuUy0zdq2opJWT6iXINKAtewnDOltQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "@typescript-eslint/eslint-plugin": "8.34.0",
+        "@typescript-eslint/parser": "8.34.0",
+        "@typescript-eslint/utils": "8.34.0"
+      },
+      "engines": {
+        "node": "^18.18.0 || ^20.9.0 || >=21.1.0"
+      },
+      "funding": {
+        "type": "opencollective",
+        "url": "https://opencollective.com/typescript-eslint"
+      },
+      "peerDependencies": {
+        "eslint": "^8.57.0 || ^9.0.0",
+        "typescript": ">=4.8.4 <5.9.0"
+      }
+    },
     "node_modules/undici-types": {
       "version": "7.8.0",
       "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.8.0.tgz",
@@ -5885,6 +6473,13 @@
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
+    "node_modules/v8-compile-cache-lib": {
+      "version": "3.0.1",
+      "resolved": "https://registry.npmjs.org/v8-compile-cache-lib/-/v8-compile-cache-lib-3.0.1.tgz",
+      "integrity": "sha512-wa7YjyUGfNZngI/vtK0UHAN+lgDCxBPCylVXGp0zu59Fz5aiGtNXaq3DhIov063MorB+VfufLh3JlF2KdTK3xg==",
+      "dev": true,
+      "license": "MIT"
+    },
     "node_modules/v8-to-istanbul": {
       "version": "9.3.0",
       "resolved": "https://registry.npmjs.org/v8-to-istanbul/-/v8-to-istanbul-9.3.0.tgz",
@@ -6192,6 +6787,16 @@
         "node": ">=8"
       }
     },
+    "node_modules/yn": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
+      "integrity": "sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==",
+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=6"
+      }
+    },
     "node_modules/yocto-queue": {
       "version": "0.1.0",
       "resolved": "https://registry.npmjs.org/yocto-queue/-/yocto-queue-0.1.0.tgz",

package.json

@@ -31,9 +31,13 @@
   },
   "devDependencies": {
     "@eslint/js": "^9.29.0",
+    "@types/adm-zip": "^0.5.7",
+    "@types/fs-extra": "^11.0.4",
     "eslint": "^9.29.0",
-    "globals": "^16.2.0",
     "jest": "^30.0.0",
-    "prettier": "^3.5.3"
+    "prettier": "^3.5.3",
+    "ts-node": "^10.9.2",
+    "typescript": "^5.8.3",
+    "typescript-eslint": "^8.34.0"
   }
 }

src/gerber.d.ts

@@ -0,0 +1,23 @@
+interface ImageConfig {
+  resizeWidth: number;
+  density: number;
+  compLevel: number;
+}
+
+interface FolderConfig {
+  tmpDir: string;
+  imgDir: string;
+}
+
+interface ZipExtractor {
+  extractArchive(fileName: string, tmpDir: string): number;
+}
+
+interface Layers {
+  filename: string;
+  gerber: ReadStream;
+}
+
+interface LayerGenerator {
+  getLayers(dir: string, layerNames: string[]): Layers[];
+}

src/index.ts

@@ -1,60 +1,51 @@
 //Modules
-const AdmZip = require('adm-zip');
+// const AdmZip = require('adm-zip');
-const { emptyDirSync, ensureDirSync } = require('fs-extra');
+import AdmZip from 'adm-zip';
-const path = require('path');
+import { emptyDirSync, ensureDirSync } from 'fs-extra';
-const pcbStackup = require('pcb-stackup');
+import path from 'path';
-const sharp = require('sharp');
+import pcbStackup from 'pcb-stackup';
-const { Readable } = require('node:stream');
+import sharp from 'sharp';
-const { Buffer } = require('node:buffer');
+import { Readable } from 'node:stream';
-const {
+// import { folder } from 'jszip';
-  existsSync,
+// const { Buffer } = require('node:buffer');
-  accessSync,
+import { existsSync, accessSync, createReadStream, constants } from 'node:fs';
-  createReadStream,
-  constants,
-} = require('node:fs');
 
 //Class definition
-class ImageGenerator {
+class ImageGenerator implements ZipExtractor, LayerGenerator {
-  constructor(folderConfig, imgConfig, layerNames) {
+  constructor(
-    this.tmpDir = folderConfig.tmpDir;
+    public folderConfig: FolderConfig,
-    this.imgDir = folderConfig.imgDir;
+    public imgConfig: ImageConfig,
-    this.imgConfig = imgConfig;
+    public layerNames?: string[],
-    this.layerNames = layerNames;
+  ) {
+    // this.tmpDir = folderConfig.tmpDir;
+    // this.imgDir = folderConfig.imgDir;
+    // this.imgConfig = imgConfig;
+    // this.layerNames = layerNames;
 
     //Ensure folders exist
-    try {
+    if (!existsSync(folderConfig.tmpDir))
-      if (!existsSync(this.tmpDir)) throw 'Temp dir does not exist';
+      throw new Error('Temp dir does not exist');
-      if (!existsSync(this.imgDir)) throw 'Image dir does not exist';
+
-    } catch (error) {
+    if (!existsSync(folderConfig.imgDir))
-      throw new Error(error);
+      throw new Error('Image dir does not exist');
-    }
 
     //Check folder permissions
-    try {
+    accessSync(folderConfig.tmpDir, constants.R_OK | constants.W_OK);
-      accessSync(this.tmpDir, constants.R_OK | constants.W_OK);
+    accessSync(folderConfig.imgDir, constants.R_OK | constants.W_OK);
-      accessSync(this.imgDir, constants.R_OK | constants.W_OK);
-    } catch (error) {
-      throw new Error(error);
-    }
   }
 
   /**
    * Extracts the passed in zip file
-   * @param {string} fileName Name of the file to be extracted
+
-   * @param {string} tmpDir Temporary directory to extract to
-   * @returns {number} Number of objects contained in the archive
    */
-  static extractArchive(fileName, tmpDir) {
+  public extractArchive(fileName: string, tmpDir: string): number {
     // Check archive exists
-    try {
+    if (!existsSync(fileName)) {
-      if (!existsSync(fileName)) {
+      throw Error('Archive does not exist.');
-        throw Error('Archive does not exist.');
+    }
-      }
+    //Check temp folder exists
-      if (!existsSync(tmpDir)) {
+    if (!existsSync(tmpDir)) {
-        throw Error('Temporary folder does not exist.');
+      throw Error('Temporary folder does not exist.');
-      }
-    } catch (e) {
-      throw new Error(e);
     }
 
     const zip = new AdmZip(fileName);
@@ -65,11 +56,9 @@ class ImageGenerator {
 
   /**
    * Temporary test method zip file
-   * @param {string} fileName Name of the file to be extracted
+
-   * @param {string} tmpDir Temporary directory to extract to
-   * @returns {number} Number of objects contained in the archive
    */
-  static testArchive(fileName, tmpDir) {
+  public testArchive(fileName: string, tmpDir: string): number {
     // Check archive exists
     try {
       if (!existsSync(fileName)) {
@@ -78,42 +67,58 @@ class ImageGenerator {
       if (!existsSync(tmpDir)) {
         throw Error('Temporary folder does not exist.');
       }
-    } catch (e) {
+    } catch (e: unknown) {
-      throw new Error(e);
+      console.error(e);
     }
     try {
       const zip = new AdmZip(fileName);
       return zip.getEntries().length;
-    } catch (error) {
+    } catch (error: unknown) {
-      throw new Error(error);
+      console.error(error);
     }
   }
 
   /**
    * Take in a directory of layer files and return an array of the layers files
-   * @param {string} dir Directory containing layer files
+
-   * @param {Array} layerNames Array of filenames for the desired layers
-   * @returns {Array} Array of paths to the layers files
    */
-  static getLayers(dir, layerNames) {
+  // public getLayers(dir: string, layerNames: string[]) {
-    return new Promise((resolve, reject) => {
+  //   new Promise((resolve, reject) => {
-      // Make sure the directory exists
+  //     // Make sure the directory exists
-      if (!existsSync(dir)) {
+  //     if (!existsSync(dir)) {
-        return reject(new Error('Layers folder does not exist.'));
+  //       return reject(new Error('Layers folder does not exist.'));
+  //     }
+  //     // Check that the required layer files exist in source dir
+  //     let layersValid = true;
+  //     layerNames.forEach((layer) => {
+  //       if (!existsSync(path.join(dir, layer))) layersValid = false;
+  //     });
+  //     if (!layersValid) return reject(new Error('Layer not found.'));
+  //     // Construct array of layers that match the supplied filenames array
+  //     const layers = layerNames.map((layerName) => ({
+  //       filename: layerName,
+  //       gerber: createReadStream(path.join(dir, layerName)),
+  //     }));
+  //     return resolve(layers);
+  //   });
+  // }
+
+  public getLayers(dir: string, layerNames: string[]): Layers[] {
+    if (!existsSync(dir)) throw new Error('Layers folder does not exist');
+
+    //Make sure the layer files exist in the folder
+    layerNames.forEach((layerName) => {
+      if (!existsSync(path.join(dir, layerName))) {
+        throw `Missing layer: ${layerName}`;
       }
-      // Check that the required layer files exist in source dir
-      let layersValid = true;
-      layerNames.forEach((layer) => {
-        if (!existsSync(path.join(dir, layer))) layersValid = false;
-      });
-      if (!layersValid) return reject(new Error('Layer not found.'));
-      // Construct array of layers that match the supplied filenames array
-      const layers = layerNames.map((layerName) => ({
-        filename: layerName,
-        gerber: createReadStream(path.join(dir, layerName)),
-      }));
-      return resolve(layers);
     });
+
+    //Construct array of layers
+    const layers: Layers[] = layerNames.map((layerName) => ({
+      filename: layerName,
+      gerber: createReadStream(path.join(dir, layerName)),
+    }));
+    return layers;
   }
 
   /**

test/index.test.js

@@ -1,8 +1,8 @@
 const path = require('path');
 const { readdirSync, ReadStream } = require('node:fs');
 const { Readable } = require('node:stream');
-const { ImageGenerator } = require('../index.js');
+const { ImageGenerator } = require('../dist/index.js');
-require('../index.js');
+require('../dist/index.js');
 
 const testGerber = path.join(__dirname, 'Arduino-Pro-Mini.zip');
 const incompleteGerber = path.join(__dirname, 'incomplete.zip');
@@ -80,8 +80,8 @@ describe('Creating an ImageGenerator object', () => {
     expect(imgGen.imgConfig.compLevel).toBe(1);
   });
   test('folders should be the ones specified in the folder config parameter', () => {
-    expect(imgGen.tmpDir).toBe(path.join(__dirname, 'tmp'));
+    expect(imgGen.folderConfig.tmpDir).toBe(path.join(__dirname, 'tmp'));
-    expect(imgGen.imgDir).toBe(path.join(__dirname, 'tmp'));
+    expect(imgGen.folderConfig.imgDir).toBe(path.join(__dirname, 'tmp'));
   });
 });
 
@@ -112,58 +112,45 @@ describe('Passing in', () => {
 // Testing static methods
 //Layer methods
 describe('Getting layers', () => {
-  test('should return a promise of array layers', () => {
+  const imgGen = new ImageGenerator(folderConfig, imgConfig);
-    expect.assertions(1);
+  test('should return an array of layers', () => {
-    return ImageGenerator.getLayers(testLayers, layerNames).then((data) => {
+    expect(imgGen.getLayers(testLayers, layerNames)).toBeInstanceOf(Array);
-      expect(data).toEqual(
-        expect.arrayContaining([
-          expect.objectContaining({
-            filename: expect.any(String),
-            gerber: expect.any(ReadStream),
-          }),
-        ]),
-      );
-    });
   });
-  test('should reject promise with error if the layers folder is not valid', () => {
+
-    expect.assertions(1);
+  test('should throw error if the layers folder is not valid', () => {
-    return expect(
+    expect(() => {
-      ImageGenerator.getLayers('./invalid_folder', layerNames),
+      imgGen.getLayers('some_invalid_folder', layerNames);
-    ).rejects.toThrow(new Error('Layers folder does not exist.'));
+    }).toThrow();
   });
-  test('should reject promise with error if there is not the correct number of layers', () => {
+
-    expect.assertions(1);
+  test('should throw error if incorrect number of layers supplied', () => {
-    return expect(
+    expect(() => {
-      ImageGenerator.getLayers(emptyFolder, layerNames),
+      imgGen.getLayers(emptyFolder, layerNames);
-    ).rejects.toThrow(new Error('Layer not found.'));
+    }).toThrow();
   });
 });
-
 //Archive methods
 describe('When extracting an archive', () => {
+  const imgGen = new ImageGenerator(folderConfig, imgConfig);
   test('a non-existent archive should throw an error', () => {
     expect(() =>
-      ImageGenerator.extractArchive('invalid.zip', folderConfig.tmpDir),
+      imgGen.extractArchive('invalid.zip', folderConfig.tmpDir),
     ).toThrow();
   });
   test('if the temp dir does not exist it should throw an error', () => {
-    expect(() =>
+    expect(() => imgGen.extractArchive(testGerber, 'some_invalid_dir')).toThrow(
-      ImageGenerator.extractArchive(testGerber, './invalid_dir'),
+      Error,
-    ).toThrow(Error);
+    );
   });
   test('it should load the archive and return the number of files extracted', () => {
     expect(() => {
-      ImageGenerator.testArchive(testGerber, archiveTestFolder);
+      imgGen.testArchive(testGerber, archiveTestFolder);
     }).not.toThrow();
-    expect(ImageGenerator.testArchive(testGerber, archiveTestFolder)).toEqual(
+    expect(imgGen.testArchive(testGerber, archiveTestFolder)).toEqual(12);
-      12,
-    );
   });
   test('it should extract archive and all files should be present', () => {
-    expect(ImageGenerator.testArchive(testGerber, archiveTestFolder)).toEqual(
+    expect(imgGen.testArchive(testGerber, archiveTestFolder)).toEqual(12);
-      12,
+    imgGen.extractArchive(testGerber, archiveTestFolder);
-    );
-    ImageGenerator.extractArchive(testGerber, archiveTestFolder);
     const dirents = readdirSync(archiveTestFolder, {
       recursive: true,
       withFileTypes: true,

tsconfig.json

@@ -0,0 +1,115 @@
+{
+  "compilerOptions": {
+    /* Visit https://aka.ms/tsconfig to read more about this file */
+
+    /* Projects */
+    // "incremental": true,                              /* Save .tsbuildinfo files to allow for incremental compilation of projects. */
+    // "composite": true,                                /* Enable constraints that allow a TypeScript project to be used with project references. */
+    // "tsBuildInfoFile": "./.tsbuildinfo",              /* Specify the path to .tsbuildinfo incremental compilation file. */
+    // "disableSourceOfProjectReferenceRedirect": true,  /* Disable preferring source files instead of declaration files when referencing composite projects. */
+    // "disableSolutionSearching": true,                 /* Opt a project out of multi-project reference checking when editing. */
+    // "disableReferencedProjectLoad": true,             /* Reduce the number of projects loaded automatically by TypeScript. */
+
+    /* Language and Environment */
+    "target": "es2016" /* Set the JavaScript language version for emitted JavaScript and include compatible library declarations. */,
+    // "lib": [],                                        /* Specify a set of bundled library declaration files that describe the target runtime environment. */
+    // "jsx": "preserve",                                /* Specify what JSX code is generated. */
+    // "libReplacement": true,                           /* Enable lib replacement. */
+    // "experimentalDecorators": true,                   /* Enable experimental support for legacy experimental decorators. */
+    // "emitDecoratorMetadata": true,                    /* Emit design-type metadata for decorated declarations in source files. */
+    // "jsxFactory": "",                                 /* Specify the JSX factory function used when targeting React JSX emit, e.g. 'React.createElement' or 'h'. */
+    // "jsxFragmentFactory": "",                         /* Specify the JSX Fragment reference used for fragments when targeting React JSX emit e.g. 'React.Fragment' or 'Fragment'. */
+    // "jsxImportSource": "",                            /* Specify module specifier used to import the JSX factory functions when using 'jsx: react-jsx*'. */
+    // "reactNamespace": "",                             /* Specify the object invoked for 'createElement'. This only applies when targeting 'react' JSX emit. */
+    // "noLib": true,                                    /* Disable including any library files, including the default lib.d.ts. */
+    // "useDefineForClassFields": true,                  /* Emit ECMAScript-standard-compliant class fields. */
+    // "moduleDetection": "auto",                        /* Control what method is used to detect module-format JS files. */
+
+    /* Modules */
+    "module": "commonjs" /* Specify what module code is generated. */,
+    // "rootDir": "./",                                  /* Specify the root folder within your source files. */
+    // "moduleResolution": "node10",                     /* Specify how TypeScript looks up a file from a given module specifier. */
+    // "baseUrl": "./",                                  /* Specify the base directory to resolve non-relative module names. */
+    // "paths": {},                                      /* Specify a set of entries that re-map imports to additional lookup locations. */
+    // "rootDirs": [],                                   /* Allow multiple folders to be treated as one when resolving modules. */
+    // "typeRoots": [],                                  /* Specify multiple folders that act like './node_modules/@types'. */
+    // "types": [],                                      /* Specify type package names to be included without being referenced in a source file. */
+    // "allowUmdGlobalAccess": true,                     /* Allow accessing UMD globals from modules. */
+    // "moduleSuffixes": [],                             /* List of file name suffixes to search when resolving a module. */
+    // "allowImportingTsExtensions": true,               /* Allow imports to include TypeScript file extensions. Requires '--moduleResolution bundler' and either '--noEmit' or '--emitDeclarationOnly' to be set. */
+    // "rewriteRelativeImportExtensions": true,          /* Rewrite '.ts', '.tsx', '.mts', and '.cts' file extensions in relative import paths to their JavaScript equivalent in output files. */
+    // "resolvePackageJsonExports": true,                /* Use the package.json 'exports' field when resolving package imports. */
+    // "resolvePackageJsonImports": true,                /* Use the package.json 'imports' field when resolving imports. */
+    // "customConditions": [],                           /* Conditions to set in addition to the resolver-specific defaults when resolving imports. */
+    // "noUncheckedSideEffectImports": true,             /* Check side effect imports. */
+    // "resolveJsonModule": true,                        /* Enable importing .json files. */
+    // "allowArbitraryExtensions": true,                 /* Enable importing files with any extension, provided a declaration file is present. */
+    // "noResolve": true,                                /* Disallow 'import's, 'require's or '<reference>'s from expanding the number of files TypeScript should add to a project. */
+
+    /* JavaScript Support */
+    // "allowJs": true,                                  /* Allow JavaScript files to be a part of your program. Use the 'checkJS' option to get errors from these files. */
+    // "checkJs": true,                                  /* Enable error reporting in type-checked JavaScript files. */
+    // "maxNodeModuleJsDepth": 1,                        /* Specify the maximum folder depth used for checking JavaScript files from 'node_modules'. Only applicable with 'allowJs'. */
+
+    /* Emit */
+    // "declaration": true,                              /* Generate .d.ts files from TypeScript and JavaScript files in your project. */
+    // "declarationMap": true,                           /* Create sourcemaps for d.ts files. */
+    // "emitDeclarationOnly": true,                      /* Only output d.ts files and not JavaScript files. */
+    // "sourceMap": true,                                /* Create source map files for emitted JavaScript files. */
+    // "inlineSourceMap": true,                          /* Include sourcemap files inside the emitted JavaScript. */
+    // "noEmit": true,                                   /* Disable emitting files from a compilation. */
+    // "outFile": "./",                                  /* Specify a file that bundles all outputs into one JavaScript file. If 'declaration' is true, also designates a file that bundles all .d.ts output. */
+    "outDir": "./dist" /* Specify an output folder for all emitted files. */,
+    // "removeComments": true,                           /* Disable emitting comments. */
+    // "importHelpers": true,                            /* Allow importing helper functions from tslib once per project, instead of including them per-file. */
+    // "downlevelIteration": true,                       /* Emit more compliant, but verbose and less performant JavaScript for iteration. */
+    // "sourceRoot": "",                                 /* Specify the root path for debuggers to find the reference source code. */
+    // "mapRoot": "",                                    /* Specify the location where debugger should locate map files instead of generated locations. */
+    // "inlineSources": true,                            /* Include source code in the sourcemaps inside the emitted JavaScript. */
+    // "emitBOM": true,                                  /* Emit a UTF-8 Byte Order Mark (BOM) in the beginning of output files. */
+    // "newLine": "crlf",                                /* Set the newline character for emitting files. */
+    // "stripInternal": true,                            /* Disable emitting declarations that have '@internal' in their JSDoc comments. */
+    // "noEmitHelpers": true,                            /* Disable generating custom helper functions like '__extends' in compiled output. */
+    // "noEmitOnError": true,                            /* Disable emitting files if any type checking errors are reported. */
+    // "preserveConstEnums": true,                       /* Disable erasing 'const enum' declarations in generated code. */
+    // "declarationDir": "./",                           /* Specify the output directory for generated declaration files. */
+
+    /* Interop Constraints */
+    // "isolatedModules": true,                          /* Ensure that each file can be safely transpiled without relying on other imports. */
+    // "verbatimModuleSyntax": true,                     /* Do not transform or elide any imports or exports not marked as type-only, ensuring they are written in the output file's format based on the 'module' setting. */
+    // "isolatedDeclarations": true,                     /* Require sufficient annotation on exports so other tools can trivially generate declaration files. */
+    // "erasableSyntaxOnly": true,                       /* Do not allow runtime constructs that are not part of ECMAScript. */
+    // "allowSyntheticDefaultImports": true,             /* Allow 'import x from y' when a module doesn't have a default export. */
+    "esModuleInterop": true /* Emit additional JavaScript to ease support for importing CommonJS modules. This enables 'allowSyntheticDefaultImports' for type compatibility. */,
+    // "preserveSymlinks": true,                         /* Disable resolving symlinks to their realpath. This correlates to the same flag in node. */
+    "forceConsistentCasingInFileNames": true /* Ensure that casing is correct in imports. */,
+
+    /* Type Checking */
+    "strict": true /* Enable all strict type-checking options. */,
+    // "noImplicitAny": true,                            /* Enable error reporting for expressions and declarations with an implied 'any' type. */
+    // "strictNullChecks": true,                         /* When type checking, take into account 'null' and 'undefined'. */
+    // "strictFunctionTypes": true,                      /* When assigning functions, check to ensure parameters and the return values are subtype-compatible. */
+    // "strictBindCallApply": true,                      /* Check that the arguments for 'bind', 'call', and 'apply' methods match the original function. */
+    // "strictPropertyInitialization": true,             /* Check for class properties that are declared but not set in the constructor. */
+    // "strictBuiltinIteratorReturn": true,              /* Built-in iterators are instantiated with a 'TReturn' type of 'undefined' instead of 'any'. */
+    // "noImplicitThis": true,                           /* Enable error reporting when 'this' is given the type 'any'. */
+    // "useUnknownInCatchVariables": true,               /* Default catch clause variables as 'unknown' instead of 'any'. */
+    // "alwaysStrict": true,                             /* Ensure 'use strict' is always emitted. */
+    // "noUnusedLocals": true,                           /* Enable error reporting when local variables aren't read. */
+    // "noUnusedParameters": true,                       /* Raise an error when a function parameter isn't read. */
+    // "exactOptionalPropertyTypes": true,               /* Interpret optional property types as written, rather than adding 'undefined'. */
+    // "noImplicitReturns": true,                        /* Enable error reporting for codepaths that do not explicitly return in a function. */
+    // "noFallthroughCasesInSwitch": true,               /* Enable error reporting for fallthrough cases in switch statements. */
+    // "noUncheckedIndexedAccess": true,                 /* Add 'undefined' to a type when accessed using an index. */
+    // "noImplicitOverride": true,                       /* Ensure overriding members in derived classes are marked with an override modifier. */
+    // "noPropertyAccessFromIndexSignature": true,       /* Enforces using indexed accessors for keys declared using an indexed type. */
+    // "allowUnusedLabels": true,                        /* Disable error reporting for unused labels. */
+    // "allowUnreachableCode": true,                     /* Disable error reporting for unreachable code. */
+
+    /* Completeness */
+    // "skipDefaultLibCheck": true,                      /* Skip type checking .d.ts files that are included with TypeScript. */
+    "skipLibCheck": true /* Skip type checking all .d.ts files. */
+  },
+  "include": ["src"],
+  "exclude": ["node_modules", "dist/**/*", "test/**/*"]
+}