feat(core): created @botpress/util-sdk to help develop modules

packages/core/botpress-util-sdk/.babelrc

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+{
+  "presets": [
+    ["env", {
+      "targets": {
+        "node": "6.10"
+      }
+    }]
+  ],
+  "plugins": ["transform-object-rest-spread", "transform-export-extensions"]
+}

packages/core/botpress-util-sdk/.npmignore

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+.npmignore
+src

packages/core/botpress-util-sdk/package.json

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+{
+  "name": "@botpress/util-sdk",
+  "version": "10.8.0",
+  "description": "The built-in stuff such as Content Elements, Content Renderers and Actions for Botpress X+",
+  "main": "./dist/index.js",
+  "repository": "https://github.com/botpress/botpress",
+  "author": "Botpress, Inc.",
+  "license": "AGPL-3.0",
+  "private": false,
+  "scripts": {
+    "watch": "babel src --out-dir dist --source-maps --watch",
+    "compile": "babel src --out-dir dist --source-maps",
+    "test": "jest --watch"
+  },
+  "devDependencies": {
+    "babel-cli": "^6.26.0",
+    "babel-plugin-transform-export-extensions": "^6.22.0",
+    "babel-plugin-transform-object-rest-spread": "^6.26.0",
+    "babel-preset-env": "^1.6.1",
+    "jest": "^22.4.3"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "dependencies": {
+    "bluebird": "^3.5.1",
+    "joi": "^13.3.0",
+    "lodash": "^4.17.10",
+    "mime": "^2.3.1",
+    "moment": "^2.22.1"
+  }
+}

packages/core/botpress-util-sdk/src/index.js

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+export * as Skill from './skill'

packages/core/botpress-util-sdk/src/index.test.js

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+test('Skills', () => {
+  // expect(obj).toBe(true)
+})

packages/core/botpress-util-sdk/src/skill.js

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+import _ from 'lodash'
+
+const genId = () =>
+  Math.random()
+    .toString()
+    .substr(2, 6)
+
+const _renderElement = (type, args) => {
+  if (_.isString(args)) {
+    return `say ${type} ${args}`
+  } else {
+    return `say ${type} ${JSON.stringify(args)}`
+  }
+}
+
+export function Flow(config) {
+  const obj = { ...config }
+
+  if (!obj.version) {
+    obj.version = '0.0'
+  }
+
+  if (!obj.name || !obj.location) {
+    obj.name = obj.location = genId()
+  }
+
+  if (!obj.startNode) {
+    if (!obj.nodes || obj.nodes.length <= 0) {
+      throw new Error('Expected at least one node in `nodes`')
+    }
+
+    if (!obj.nodes.filter(n => n.name === 'entry').length) {
+      obj.startNode = obj.nodes[0].name
+    }
+
+    obj.startNode = 'entry'
+  }
+
+  return obj
+}
+
+export function Node(config) {
+  const obj = { ...config }
+
+  if (!obj.id) {
+    obj.id = genId()
+  }
+
+  if (!obj.onEnter) {
+    obj.onEnter = []
+  }
+
+  if (!obj.onReceive) {
+    obj.onReceive = null
+  }
+
+  if (!obj.next) {
+    obj.next = []
+  }
+
+  return obj
+}
+
+export function renderElement(...args) {
+  if (args.length === 1) {
+    return _renderElement('#text', args[0])
+  } else if (args.length === 2) {
+    return _renderElement(args[0], args[1])
+  } else {
+    throw new Error('Can only call say with one or two args')
+  }
+}
+
+export function runAction(name, args) {
+  return args ? `${name} ${JSON.stringify(args)}` : name
+}