From 23cc6ba5b7c0787537e0f0e650aa7bf8e25a5a9d Mon Sep 17 00:00:00 2001
From: EnixCoda <enixcoda@gmail.com>
Date: Sat, 28 Mar 2020 22:08:58 +0800
Subject: [PATCH] feat: resolve platform async

---
 src/content.tsx        | 46 ++++++++++++++++++++++--------------------
 src/platforms/index.ts | 14 +++++++++++--
 2 files changed, 36 insertions(+), 24 deletions(-)

diff --git a/src/content.tsx b/src/content.tsx
index f4ed9b5..b65f0ab 100644
--- a/src/content.tsx
+++ b/src/content.tsx
@@ -1,33 +1,35 @@
 import { withErrorLog } from 'analytics'
 import { Gitako } from 'components/Gitako'
 import { addMiddleware } from 'driver/connect'
-import { platform } from 'platforms'
+import { platform, resolvePlatformP } from 'platforms'
 import * as React from 'react'
 import * as ReactDOM from 'react-dom'
 import './content.scss'
 
-if (platform.resolveMeta()) {
-  addMiddleware(withErrorLog)
+resolvePlatformP.then(() => {
+  if (platform.resolveMeta()) {
+    addMiddleware(withErrorLog)
 
-  function init() {
-    // injects a copy of stylesheets so that other extensions(e.g. dark reader) could read
-    function injectStyles(url: string) {
-      var linkElement = document.createElement('link')
-      linkElement.rel = 'stylesheet'
-      linkElement.setAttribute('href', url)
-      document.head.appendChild(linkElement)
+    function init() {
+      // injects a copy of stylesheets so that other extensions(e.g. dark reader) could read
+      function injectStyles(url: string) {
+        var linkElement = document.createElement('link')
+        linkElement.rel = 'stylesheet'
+        linkElement.setAttribute('href', url)
+        document.head.appendChild(linkElement)
+      }
+
+      injectStyles(browser.extension.getURL('content.css'))
+
+      const SideBarElement = document.createElement('div')
+      document.body.appendChild(SideBarElement)
+      ReactDOM.render(<Gitako />, SideBarElement)
     }
 
-    injectStyles(browser.extension.getURL('content.css'))
-
-    const SideBarElement = document.createElement('div')
-    document.body.appendChild(SideBarElement)
-    ReactDOM.render(<Gitako />, SideBarElement)
+    if (document.readyState === 'loading') {
+      document.addEventListener('DOMContentLoaded', init)
+    } else {
+      init()
+    }
   }
-
-  if (document.readyState === 'loading') {
-    document.addEventListener('DOMContentLoaded', init)
-  } else {
-    init()
-  }
-}
+})
diff --git a/src/platforms/index.ts b/src/platforms/index.ts
index fa5f96f..cd54f77 100644
--- a/src/platforms/index.ts
+++ b/src/platforms/index.ts
@@ -6,16 +6,26 @@ const hosts: Record<'GitHub' | 'GitLab' | 'Gitee', string[]> = {
   GitLab: ['gitlab.com'],
   Gitee: ['gitee.com'],
 }
+
 function isGitHub() {
   return hosts.GitHub.includes(window.location.host)
 }
 
-function resolvePlatform(): Platform {
+async function resolvePlatform(): Promise<Platform> {
   if (isGitHub()) return GitHub
   return dummyPlatformForTypeSafety
 }
 
-export const platform: Platform = resolvePlatform()
+let p: Platform = dummyPlatformForTypeSafety
+
+export const resolvePlatformP = resolvePlatform()
+resolvePlatformP.then(platform => (p = platform))
+
+export const platform: Platform = new Proxy<Platform>(dummyPlatformForTypeSafety, {
+  get(target, key: keyof Platform) {
+    return p[key]
+  },
+})
 
 export const errors = {
   SERVER_FAULT: 'Server Fault',