Checkpoint: tests are passing

This required a few ts-ignores and I'm sure that a lot of this is still
broken, but the tests are green so we're gonna call it a day.

Next step will be to verify that we can actually run the server, and
that the express middleware still works after the version updates

Then we have to reimplement the build process, and then we can work on
refactoring to use sharp instead of gm.

Author: rylnd

package-lock.json

@@ -27,6 +27,7 @@
   },
   "devDependencies": {
     "@types/express": "^4.16.1",
+    "@types/gm": "^1.18.2",
     "@types/mocha": "^5.2.6",
     "@types/node": "^11.13.4",
     "@types/serve-favicon": "^2.2.30",

package.json

@@ -0,0 +1,3 @@
+import routes from './routes/avatars';
+
+export default routes;

src/index.ts

@@ -27,7 +27,7 @@ export const combine = (face, size, callback) => {
     size = { width: maxSize, height: maxSize };
   }
 
-  imageMagick()
+  imageMagick('')
   .quality(0)
   .in(face.eyes)
   .in(face.nose)

src/lib/hashingFunctions.js renamed to src/lib/hashingFunctions.ts

@@ -0,0 +1,37 @@
+// our libs
+import { sumAndDiff } from './hashingFunctions';
+import { allPaths } from './imageFiles';
+import SlotMachine from './slotMachine';
+
+const colors = [
+  '#81bef1',
+  '#ad8bf2',
+  '#bff288',
+  '#de7878',
+  '#a5aac5',
+  '#6ff2c5',
+  '#f0da5e',
+  '#eb5972',
+  '#f6be5d'
+];
+
+class Potato {
+  constructor(
+    private colorMachine = new SlotMachine(colors),
+    private eyesMachine = new SlotMachine(allPaths('eyes')),
+    private noseMachine = new SlotMachine(allPaths('nose')),
+    private mouthMachine = new SlotMachine(allPaths('mouth'), sumAndDiff)
+  ) {}
+
+  // Construct Faces Parts
+  parts(string) {
+    return {
+      color: this.colorMachine.pull(string),
+      eyes: this.eyesMachine.pull(string),
+      nose: this.noseMachine.pull(string),
+      mouth: this.mouthMachine.pull(string)
+    };
+  }
+}
+
+export default new Potato();

src/lib/imageFiles.js renamed to src/lib/imageFiles.ts

@@ -1,7 +1,11 @@
 import { sum } from './hashingFunctions';
 
-class SlotMachine {
-  constructor(slots, hashingFn) {
+class SlotMachine<T> {
+  private slots: T[];
+  private numSlots: number;
+  private hashingFn: (items: number[]) => number;
+
+  constructor(slots: T[], hashingFn?) {
     this.slots = slots;
     this.numSlots = this.slots.length;
     this.hashingFn = hashingFn || sum;

src/lib/imager.js renamed to src/lib/imager.ts

@@ -8,12 +8,12 @@ import potato from '../lib/potato';
 
 const partTypes = ['eyes', 'nose', 'mouth'];
 
-// eslint-disable-next-line new-cap
 const router = Router();
 
 router.param('id', function(req, res, next, id) {
   var faceParts;
   faceParts = potato.parts(id);
+  //@ts-ignore
   req.faceParts = faceParts;
   return next();
 });
@@ -31,6 +31,7 @@ router.get('/list', function(req, res) {
 router.get('/:size?/random', function(req, res) {
   var faceParts;
   faceParts = potato.parts(uuid.v4());
+  //@ts-ignore
   req.faceParts = faceParts;
 
   return combine(faceParts, req.params.size, function(err, stdout) {
@@ -39,6 +40,7 @@ router.get('/:size?/random', function(req, res) {
 });
 
 router.get('/:size?/:id', function(req, res, next) {
+  //@ts-ignore
   return combine(req.faceParts, req.params.size, function(err, stdout) {
     return common.sendImage(err, stdout, req, res, next);
   });