Adding a Shared folder:

* init some shared functions (videoHasWebchat, parseConfigUUIDs)
* api/room: checking that video has live enabled
* fix promise handling in initChat function
* removing some 'use strict' that are no more necessary in typescript

shared/.eslintrc.json

@@ -0,0 +1,41 @@
+{
+  "root": true,
+  "env": {
+      "browser": true,
+      "es6": true
+  },
+  "extends": [
+      "standard-with-typescript"
+  ],
+  "globals": {},
+  "parser": "@typescript-eslint/parser",
+  "parserOptions": {
+      "ecmaVersion": 2018,
+      "project": [
+          "./server/tsconfig.json",
+          "./client/tsconfig.json"
+      ]
+  },
+  "plugins": [
+      "@typescript-eslint"
+  ],
+  "ignorePatterns": [],
+  "rules": {
+      "@typescript-eslint/no-unused-vars": [2, {"argsIgnorePattern": "^_"}],
+      "@typescript-eslint/no-floating-promises": "error",
+      "@typescript-eslint/no-misused-promises": "error",
+      "@typescript-eslint/no-var-requires": "off",
+      "@typescript-eslint/strict-boolean-expressions": "off",
+      "@typescript-eslint/return-await": [2, "in-try-catch"], // FIXME: correct?
+      "@typescript-eslint/no-invalid-void-type": "off",
+      "@typescript-eslint/triple-slash-reference": "off",
+      "max-len": [
+        "error",
+        {
+          "code": 120,
+          "comments": 120
+        }
+      ],
+      "no-unused-vars": "off"
+  }
+}

shared/lib/config.ts

@@ -0,0 +1,16 @@
+function parseConfigUUIDs (s: string): string[] {
+  if (!s) {
+    return []
+  }
+  let a = s.split('\n')
+  a = a.map(line => {
+    return line.replace(/#.*$/, '')
+      .replace(/^\s+/, '')
+      .replace(/\s+$/, '')
+  })
+  return a.filter(line => line !== '')
+}
+
+export {
+  parseConfigUUIDs
+}

shared/lib/video.ts

@@ -0,0 +1,52 @@
+import { parseConfigUUIDs } from './config'
+
+interface SharedSettings {
+  'chat-only-locals': boolean
+  'chat-all-lives': boolean
+  'chat-all-non-lives': boolean
+  'chat-videos-list': string
+}
+
+interface SharedVideoBase {
+  uuid: string
+  isLive: boolean
+}
+
+interface SharedVideoFrontend extends SharedVideoBase {
+  isLocal: boolean
+}
+
+interface SharedVideoBackend extends SharedVideoBase {
+  remote: boolean
+}
+
+type SharedVideo = SharedVideoBackend | SharedVideoFrontend
+
+function videoHasWebchat (settings: SharedSettings, video: SharedVideo): boolean {
+  if (settings['chat-only-locals']) {
+    if ('isLocal' in video) {
+      if (!video.isLocal) return false
+    } else {
+      if (video.remote) return false
+    }
+  }
+
+  if (settings['chat-all-lives']) {
+    if (video.isLive) return true
+  }
+
+  if (settings['chat-all-non-lives']) {
+    if (!video.isLive) return true
+  }
+
+  const uuids = parseConfigUUIDs(settings['chat-videos-list'])
+  if (uuids.includes(video.uuid)) {
+    return true
+  }
+
+  return false
+}
+
+export {
+  videoHasWebchat
+}