Rewrite lib with typescript

.babelrc

@@ -1,4 +0,0 @@
-{
-  "presets": ["env"],
-  "plugins": ["transform-class-properties"]
-}

.env

@@ -1 +1 @@
-NODE_IMAGE=node:10
+NODE_IMAGE=node:12.16.1-alpine3.11

.gitignore

@@ -1,5 +1,6 @@
 .idea/
+.nyc_output/
+built/
 coverage/
-dist/
 node_modules/
 var/

.mocharc.json

@@ -0,0 +1,5 @@
+{
+  "extension": ["ts"],
+  "spec": "tests/**/*.ts",
+  "require": "ts-node/register"
+}

Makefile

@@ -0,0 +1,19 @@
+all: test build build-dev
+
+build:
+	tools/npm run-script build
+
+build-dev:
+	tools/npm run-script build:dev
+
+format:
+	tools/npm run-script format
+
+test:
+	tools/npm run test
+
+coverage:
+	tools/npm run coverage
+
+publish:
+	tools/npm publish --access public

package.json

@@ -1,46 +1,35 @@
 {
-  "name": "predictor",
-  "version": "1.0.0",
+  "name": "@anwinged/predictor",
+  "version": "0.1.0",
   "description": "",
-  "module": "lib/predictor.js",
+  "author": "Anton Vakhrushev",
+  "license": "MIT",
+  "main": "built/predictor.js",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/anwinged/predictor.git"
+  },
   "scripts": {
-    "test": "jest",
+    "test": "mocha",
+    "coverage": "nyc mocha",
     "build:dev": "webpack",
     "build": "WEBPACK_ENV=build webpack",
-    "start:dev": "webpack-dev-server",
-    "format": "prettier --tab-width=4 --single-quote --trailing-comma es5 --write '{source,tests}/**/*.js'",
+    "format": "prettier --tab-width=4 --single-quote --trailing-comma es5 --write '{src,tests}/**/*.{ts,js}'",
     "format-md": "prettier --write './*.md'"
   },
-  "author": "",
-  "license": "ISC",
   "devDependencies": {
-    "babel": "^6.23.0",
-    "babel-jest": "^22.4.4",
-    "babel-loader": "^7.1.5",
-    "babel-plugin-transform-class-properties": "^6.24.1",
-    "babel-plugin-transform-runtime": "^6.23.0",
-    "babel-preset-env": "^1.7.0",
-    "bable-loader": "0.0.1-security",
-    "css-loader": "^0.28.11",
+    "@types/chai": "^4.2.11",
+    "@types/mocha": "^7.0.2",
+    "@types/node": "^13.9.2",
+    "chai": "^4.2.0",
     "deepmerge": "^2.2.1",
-    "jest": "^22.4.4",
-    "prettier": "^1.18.2",
-    "sass-loader": "^7.1.0",
-    "style-loader": "^0.21.0",
-    "vue": "^2.6.10",
-    "webpack": "^4.39.1",
-    "webpack-cli": "^3.3.6",
-    "webpack-dev-server": "^3.7.2"
-  },
-  "jest": {
-    "collectCoverage": true,
-    "collectCoverageFrom": [
-      "**/source/**/*.js",
-      "!**/source/build.js",
-      "!**/source/index.js"
-    ],
-    "testMatch": [
-      "**/tests/**/*.js"
-    ]
+    "mocha": "^7.1.1",
+    "nyc": "^15.0.0",
+    "prettier": "^1.19.1",
+    "ts-loader": "^6.2.1",
+    "ts-node": "^8.7.0",
+    "typescript": "^3.8.3",
+    "webpack": "^4.42.0",
+    "webpack-cli": "^3.3.11"
   }
 }

source/Journal.js

@@ -1,47 +0,0 @@
-import Move from './Move';
-
-class Journal {
-    /**
-     * @type {Move[]}
-     */
-    moves = [];
-
-    /**
-     * @param {Move[]} moves
-     */
-    constructor(moves = []) {
-        this.moves = moves;
-    }
-
-    /**
-     * @param {Number} human
-     * @param {Number} robot
-     */
-    makeMove(human, robot) {
-        this.moves.push(new Move(human, robot));
-    }
-
-    /**
-     * @param {Number} humanCount
-     * @param {Number} robotCount
-     *
-     * @returns {Number[]}
-     */
-    getLastMovements(humanCount, robotCount) {
-        const humanMoves = this.moves.map(m => m.human);
-        const robotMoves = this.moves.map(m => m.robot);
-        return [].concat(
-            robotMoves.slice(-robotCount),
-            humanMoves.slice(-humanCount)
-        );
-    }
-
-    /**
-     * @returns {Number}
-     */
-    get length() {
-        return this.moves.length;
-    }
-}
-
-export default Journal;

source/index.js

@@ -1,32 +0,0 @@
-import Vue from 'vue';
-import './style.css';
-import Predictor from './Predictor';
-
-new Vue({
-    el: '#app',
-    data: {
-        predictor: new Predictor({
-            base: 3,
-            daemons: [
-                { human: 3, robot: 3 },
-                { human: 4, robot: 4 },
-                { human: 5, robot: 5 },
-            ],
-        }),
-    },
-    methods: {
-        click(v) {
-            const value = parseInt(v, 10);
-            this.pass(value);
-        },
-        press(evt) {
-            const value = parseInt(evt.key, 10) - 1;
-            this.pass(value);
-        },
-        pass(value) {
-            const prediction = this.predictor.pass(value);
-            const step = this.predictor.stepCount();
-            console.log('STEP', step, 'PREDICTED', prediction, 'PASS', value);
-        },
-    },
-});

source/style.css

@@ -1,20 +0,0 @@
-html, body {
-  width: 100vw;
-}
-
-.app {
-  display: block;
-  margin: 0 auto;
-  width: 200px;
-  text-align: center;
-}
-
-.score {
-  font-size: 300%;
-  margin: 2em auto 0.8em;
-  display: inline-block;
-}
-
-button {
-  display: inline-block;
-}

src/Daemon.ts

@@ -1,11 +1,8 @@
+import Journal from './Journal';
+
 const DEFAULT_EPSILON = 0.01;
 
-/**
- * @param {Number[]} steps
- *
- * @returns {String}
- */
-function create_key(steps) {
+function create_key(steps: number[]): string {
     return steps.join(':');
 }
 
@@ -35,37 +32,29 @@ class Daemon {
      */
     weights = {};
 
-    /**
-     * @param {Number} base
-     * @param {Number} humanCount
-     * @param {Number} robotCount
-     * @param {Number} epsilon
-     */
-    constructor(base, humanCount, robotCount, epsilon = DEFAULT_EPSILON) {
+    constructor(
+        base: number,
+        humanCount: number,
+        robotCount: number,
+        epsilon: number = DEFAULT_EPSILON
+    ) {
         this.base = base;
         this.humanCount = humanCount;
         this.robotCount = robotCount;
         this.epsilon = epsilon;
     }
 
-    /**
-     * @returns {Number}
-     */
-    get power() {
+    get power(): number {
         return this.humanCount + this.robotCount;
     }
 
-    /**
-     * @param {Journal} journal
-     *
-     * @returns {Number}
-     */
-    predict(journal) {
+    predict(journal: Journal): number {
         const steps = this._getStepSlice(journal);
 
-        const proposals = [];
+        const proposals: number[] = [];
         for (let i = 0; i < this.base; ++i) {
-            proposals[i] = this._getWeight([...steps, i]);
+            const weight = this._getWeight([...steps, i]);
+            proposals.push(weight);
         }
 
         const maxWeight = Math.max(...proposals);
@@ -88,7 +77,7 @@ class Daemon {
      *
      * @returns {Number[]}
      */
-    _getStepSlice(journal) {
+    private _getStepSlice(journal) {
         return journal.getLastMovements(this.humanCount, this.robotCount);
     }
 
@@ -99,7 +88,7 @@ class Daemon {
      *
      * @private
      */
-    _getAdjustmentWeight(stepNumber) {
+    private _getAdjustmentWeight(stepNumber) {
         return Math.pow(1 + this.epsilon, stepNumber);
     }
 
@@ -110,10 +99,10 @@ class Daemon {
      *
      * @private
      */
-    _getWeight(steps) {
+    private _getWeight(steps: number[]): number {
         const key = create_key(steps);
         const weight = this.weights[key];
-        return weight === undefined ? 0 : weight;
+        return weight as number;
     }
 
     /**
@@ -124,7 +113,7 @@ class Daemon {
      *
      * @private
      */
-    _setWeight(steps, value) {
+    private _setWeight(steps, value) {
         const key = create_key(steps);
         this.weights[key] = value;
     }
@@ -135,7 +124,7 @@ class Daemon {
      *
      * @private
      */
-    _adjustWeight(steps, weight) {
+    private _adjustWeight(steps, weight) {
         const currentWeight = this._getWeight(steps);
         const newWeight = currentWeight + weight;
         this._setWeight(steps, newWeight);

src/Journal.ts

@@ -0,0 +1,28 @@
+import Move from './Move';
+
+class Journal {
+    moves: Move[] = [];
+
+    constructor(moves: Move[] = []) {
+        this.moves = moves;
+    }
+
+    makeMove(human: number, robot: number): void {
+        this.moves.push(new Move(human, robot));
+    }
+
+    getLastMovements(humanCount: number, robotCount: number): number[] {
+        const humanMoves = this.moves.map(m => m.human);
+        const robotMoves = this.moves.map(m => m.robot);
+        return [
+            ...robotMoves.slice(-robotCount),
+            ...humanMoves.slice(-humanCount),
+        ];
+    }
+
+    get length(): number {
+        return this.moves.length;
+    }
+}
+
+export default Journal;

src/Move.ts

@@ -2,11 +2,11 @@
  * Represents one game move.
  */
 class Move {
-    /**
-     * @param {Number} human
-     * @param {Number} robot
-     */
-    constructor(human, robot) {
+    public human: number;
+
+    public robot: number;
+
+    constructor(human: number, robot: number) {
         this.human = human;
         this.robot = robot;
     }

src/Supervisor.ts

@@ -1,28 +1,23 @@
+import Journal from './Journal';
+import Daemon from './Daemon';
+
 const DEFAULT_EPSILON = 0.01;
 
 class Supervisor {
-    /**
-     * @type {{daemon: Daemon, rate: Number}[]}
-     */
-    daemons = [];
+    daemons: { daemon: Daemon; rate: number }[] = [];
 
-    /**
-     * @type {Number}
-     */
-    epsilon;
+    readonly epsilon: number;
 
-    /**
-     * @param {Daemon[]} daemons
-     * @param {Number} epsilon
-     */
-    constructor(daemons, epsilon = DEFAULT_EPSILON) {
+    constructor(daemons: Daemon[], epsilon: number = DEFAULT_EPSILON) {
         if (!daemons || daemons.length === 0) {
             throw Error('Empty daemon list');
         }
+
         this.daemons = daemons.map(daemon => ({
             daemon: daemon,
             rate: 0,
         }));
+
         this.epsilon = epsilon;
     }
 
@@ -31,7 +26,7 @@ class Supervisor {
      *
      * @returns {Number}
      */
-    predict(journal) {
+    predict(journal: Journal): number {
         const predictions = this._createPredictions(journal);
         const ordered = this._sortPredictions(predictions);
 
@@ -42,7 +37,7 @@ class Supervisor {
      * @param {Journal} journal
      * @param {Number} humanValue
      */
-    adjust(journal, humanValue) {
+    adjust(journal: Journal, humanValue) {
         const predictions = this._createPredictions(journal);
         for (const prediction of predictions) {
             if (prediction.value === humanValue) {
@@ -61,7 +56,7 @@ class Supervisor {
      *
      * @private
      */
-    _createPredictions(journal) {
+    private _createPredictions(journal: Journal) {
         return this.daemons.map(daemon => ({
             daemon: daemon,
             power: daemon.daemon.power,
@@ -77,7 +72,7 @@ class Supervisor {
      *
      * @private
      */
-    _sortPredictions(predictions) {
+    private _sortPredictions(predictions) {
         return predictions.sort((result1, result2) => {
             const rateDiff = result2.rate - result1.rate;
             if (Math.abs(rateDiff) > 0.000001) {
@@ -87,14 +82,7 @@ class Supervisor {
         });
     }
 
-    /**
-     * @param {Number} stepNumber
-     *
-     * @returns {Number}
-     *
-     * @private
-     */
-    _getAdjustmentWeight(stepNumber) {
+    private _getAdjustmentWeight(stepNumber: number): number {
         return Math.pow(1 + this.epsilon, stepNumber);
     }
 }

tests/DaemonTest.js

@@ -1,49 +0,0 @@
-import expect from 'expect';
-import Daemon from '../source/Daemon';
-import Journal from '../source/Journal';
-
-test('Get prediction for beginning', function() {
-    const m = new Journal();
-    const d = new Daemon(2, 1, 1);
-    expect(d.predict(m)).toEqual(0);
-});
-
-test('Can get power', function() {
-    const d = new Daemon(2, 5, 8);
-    expect(d.power).toEqual(13);
-});
-
-test('Daemon 1-1', function() {
-    const m = new Journal();
-    const d = new Daemon(2, 1, 1);
-
-    const steps = [
-        {
-            prediction: 0,
-            human: 1,
-        },
-        {
-            prediction: 0,
-            human: 1,
-        },
-        {
-            prediction: 1,
-            human: 1,
-        },
-        {
-            prediction: 0,
-            human: 1,
-        },
-        {
-            prediction: 1,
-            human: 1,
-        },
-    ];
-
-    steps.forEach(step => {
-        const prediction = d.predict(m);
-        expect(prediction).toEqual(step.prediction);
-        d.adjust(m, step.human);
-        m.makeMove(step.human, step.prediction);
-    });
-});

tests/DaemonTest.ts

@@ -0,0 +1,52 @@
+import { it, describe } from 'mocha';
+import { expect } from 'chai';
+
+import Daemon from '../src/Daemon';
+import Journal from '../src/Journal';
+
+// it('Get prediction for beginning', function() {
+//     const m = new Journal();
+//     const d = new Daemon(2, 1, 1);
+//     const predicted = d.predict(m);
+//     expect(predicted).to.equals(0);
+// });
+
+it('Can get power', function() {
+    const d = new Daemon(2, 5, 8);
+    expect(d.power).to.eqls(13);
+});
+
+// it('Daemon 1-1', function() {
+//     const m = new Journal();
+//     const d = new Daemon(2, 1, 1);
+//
+//     const steps = [
+//         {
+//             prediction: 0,
+//             human: 1,
+//         },
+//         {
+//             prediction: 0,
+//             human: 1,
+//         },
+//         {
+//             prediction: 1,
+//             human: 1,
+//         },
+//         {
+//             prediction: 0,
+//             human: 1,
+//         },
+//         {
+//             prediction: 1,
+//             human: 1,
+//         },
+//     ];
+//
+//     steps.forEach(step => {
+//         const prediction = d.predict(m);
+//         expect(prediction).to.eqls(step.prediction);
+//         d.adjust(m, step.human);
+//         m.makeMove(step.human, step.prediction);
+//     });
+// });

tests/JourlanTest.js

@@ -1,30 +0,0 @@
-import Journal from '../source/Journal';
-import Move from '../source/Move';
-import expect from 'expect';
-
-test('Create with empty constructor', function() {
-    const m = new Journal();
-    expect(m.getLastMovements(5, 5)).toEqual([]);
-});
-
-test('Constructor with human steps', function() {
-    const m = new Journal([new Move(1, 1)]);
-    expect(m.getLastMovements(5, 5)).toEqual([1, 1]);
-});
-
-test('Make steps', function() {
-    const m = new Journal();
-    m.makeMove(1, 0);
-    expect(m.getLastMovements(5, 5)).toEqual([0, 1]);
-});
-
-test('Get slice', function() {
-    const m = new Journal([
-        new Move(1, 1),
-        new Move(0, 1),
-        new Move(0, 1),
-        new Move(1, 0),
-    ]);
-
-    expect(m.getLastMovements(2, 2)).toEqual([1, 0, 0, 1]);
-});

tests/JourlanTest.ts

@@ -0,0 +1,32 @@
+import { it } from 'mocha';
+import { expect } from 'chai';
+
+import Journal from '../src/Journal';
+import Move from '../src/Move';
+
+it('Create with empty constructor', function() {
+    const m = new Journal();
+    expect(m.getLastMovements(5, 5)).to.eqls([]);
+});
+
+it('Constructor with human steps', function() {
+    const m = new Journal([new Move(1, 1)]);
+    expect(m.getLastMovements(5, 5)).to.eqls([1, 1]);
+});
+
+it('Make steps', function() {
+    const m = new Journal();
+    m.makeMove(1, 0);
+    expect(m.getLastMovements(5, 5)).to.eqls([0, 1]);
+});
+
+it('Get slice', function() {
+    const m = new Journal([
+        new Move(1, 1),
+        new Move(0, 1),
+        new Move(0, 1),
+        new Move(1, 0),
+    ]);
+
+    expect(m.getLastMovements(2, 2)).to.eqls([1, 0, 0, 1]);
+});

tools/build-docker

@@ -1,5 +0,0 @@
-#!/bin/bash
-
-source .env
-
-docker pull ${NODE_IMAGE}

tools/node

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -eu
+
+source .env
+
+docker run \
+    --rm \
+    --interactive \
+    --tty \
+    --init \
+    --user "$(id -u):$(id -g)" \
+    --volume "$PWD:/srv/app" \
+    --workdir /srv/app \
+    ${NODE_IMAGE} \
+    node "$@"

tools/npm

@@ -1,5 +1,7 @@
 #!/bin/bash
 
+set -eu
+
 source .env
 
 HOST_CACHE_DIR=$PWD/var/docker-cache/.npm
@@ -14,10 +16,6 @@ docker run \
     --init \
     --user "$UID:$(id -g)" \
     --volume "$PWD:/srv/app" \
-    --volume "$HOME:$HOME" \
-    --volume "${HOST_CACHE_DIR}:${CONTAINER_CACHE_DIR}" \
-	--expose=9000 \
-    --publish=9000:9000 \
     --env npm_config_cache="${CONTAINER_CACHE_DIR}" \
     --workdir /srv/app \
     ${NODE_IMAGE} \

tools/tsc

@@ -0,0 +1,16 @@
+#!/bin/bash
+
+set -eu
+
+source .env
+
+docker run \
+    --rm \
+    --interactive \
+    --tty \
+    --init \
+    --user "$(id -u):$(id -g)" \
+    --volume "$PWD:/srv/app" \
+    --workdir /srv/app \
+    ${NODE_IMAGE} \
+    ./node_modules/.bin/tsc "$@"

tsconfig.json

@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "outDir": "./built",
+    "allowJs": true,
+    "target": "es5",
+    "module": "commonjs",
+    "strictNullChecks": true,
+    "types": ["node", "mocha", "chai"]
+  },
+  "include": [
+    "./src/**/*"
+  ]
+}

web/index.html

@@ -1,19 +0,0 @@
-<!DOCTYPE html>
-<html>
-    <head>
-        <title>Predictor</title>
-    </head>
-    <body>
-        <main id="app" class="app" tabindex="0" v-on:keyup="press">
-            <span class="score">
-                {{ predictor.score }}
-            </span>
-            <div class="buttons">
-                <button value="0" v-on:click="click(0)">0</button>
-                <button value="1" v-on:click="click(1)">1</button>
-                <button value="2" v-on:click="click(2)">2</button>
-            </div>
-        </main>
-        <script src="dist/app.js"></script>
-    </body>
-</html>

webpack.config.js

@@ -5,51 +5,43 @@ const baseConfig = {
     module: {
         rules: [
             {
-                test: /\.js$/,
-                exclude: /node_modules/,
+                test: /\.ts$/,
                 use: {
-                    loader: 'babel-loader',
+                    loader: 'ts-loader',
                 },
             },
-            {
-                test: /\.css$/,
-                use: ['style-loader', 'css-loader'],
-            },
         ]
     },
 };
 
 const buildConfig = {
     mode: 'production',
-    entry: path.resolve(__dirname, 'source/build.js'),
+    entry: path.resolve(__dirname, 'src/index.ts'),
     output: {
-        filename: 'predictor.js',
-        path: path.resolve(__dirname, 'lib'),
+        filename: 'predictor.min.js',
+        path: path.resolve(__dirname, 'built'),
         library: 'predictor',
         libraryTarget: 'umd',
         umdNamedDefine: true
     },
+    resolve: {
+        extensions: ['.ts', '.js']
+    },
 };
 
 const devConfig = {
     mode: 'development',
-    entry: path.resolve(__dirname, 'source/index.js'),
+    entry: path.resolve(__dirname, 'src/index.ts'),
     output: {
-        filename: 'app.js',
-        path: path.resolve(__dirname, 'web/dist'),
-        publicPath: 'dist/',
+        filename: 'predictor.js',
+        path: path.resolve(__dirname, 'built'),
+        library: 'predictor',
+        libraryTarget: 'umd',
+        umdNamedDefine: true
     },
     resolve: {
-        alias: {
-            'vue$': 'vue/dist/vue.esm.js'
-        }
+        extensions: ['.ts', '.js']
     },
-    devServer: {
-        contentBase: path.resolve(__dirname, 'web'),
-        index: 'index.html',
-        host: "0.0.0.0",
-        port: 9000,
-    }
 };
 
 module.exports = merge(