From eb12fb90eac4012629206c5d29798871ce080d5f Mon Sep 17 00:00:00 2001
From: Igor Vinokur <ivinokur@redhat.com>
Date: Wed, 26 Aug 2020 16:55:16 +0300
Subject: [PATCH] Register GitHub Authentication provider for the vscode Github
 PR plugin

---
 .../src/github-auth-plugin.ts                 | 46 +++++++++++++------
 1 file changed, 31 insertions(+), 15 deletions(-)

diff --git a/plugins/github-auth-plugin/src/github-auth-plugin.ts b/plugins/github-auth-plugin/src/github-auth-plugin.ts
index 30e8d3e927..5aeb921e80 100644
--- a/plugins/github-auth-plugin/src/github-auth-plugin.ts
+++ b/plugins/github-auth-plugin/src/github-auth-plugin.ts
@@ -11,22 +11,38 @@
 import * as theia from '@theia/plugin';
 import * as che from '@eclipse-che/plugin';
 
-export function start(context: theia.PluginContext): void {
+export async function start(context: theia.PluginContext): Promise<void> {
+    let session: theia.AuthenticationSession | undefined;
     if (theia.plugins.getPlugin('github.vscode-pull-request-github')) {
-        const command = {
-            id: 'github-plugin-authenticate',
-            label: 'GitHub authenticate'
-        };
-        context.subscriptions.push(theia.commands.registerCommand(command, async () => {
-            const token = await che.github.getToken();
-            const conf = theia.workspace.getConfiguration();
-            await conf.update('githubPullRequests.hosts', [{
-                host: 'github.com',
-                token
-            }], theia.ConfigurationTarget.Global);
-            theia.window.showWarningMessage('GitHub token has been set to preferences. ' +
-                'Refresh the page to reinitialise the vscode GitHub pull-request plugin with the token');
-        }));
+        const onDidChangeSessions = new theia.EventEmitter<theia.AuthenticationProviderAuthenticationSessionsChangeEvent>();
+        theia.authentication.registerAuthenticationProvider({
+                id: 'github',
+                label: 'GitHub',
+                supportsMultipleAccounts: false,
+                onDidChangeSessions: onDidChangeSessions.event,
+                getSessions: async () => {
+                    if (session) {
+                        return [session];
+                    } else {
+                        return [];
+                    }
+                },
+                login: async (scopeList: string[]) => {
+                    session = {
+                        id: 'sessionId',
+                        accessToken: await che.github.getToken(),
+                        account: {label: 'accountName1', id: 'accountId'},
+                        scopes: scopeList
+                    };
+                    onDidChangeSessions.fire({added: [session.id], removed: [], changed: []});
+                    return session;
+                },
+                logout: async (id: string) => {
+                    session = undefined;
+                    onDidChangeSessions.fire({added: [], removed: [id], changed: []});
+                }
+            }
+        );
     }
 }