feat: initial version

Author: gr2m

src/index.ts

@@ -0,0 +1,36 @@
+declare interface Options {
+  clientId: string
+
+  allowSignup?: boolean
+  login?: string
+  scopes?: string | string[]
+  redirectUrl?: string
+}
+
+export interface Result {
+  allowSignup: boolean,
+  clientId: string,
+  login: string | null,
+  redirectUrl: string | null,
+  scopes: string[],
+  state: string,
+  url: string
+}
+
+const BASE_URL = 'https://github.com/login/oauth/authorize'
+
+export default function login (options: Options): Result {
+  const scopesNormalized = typeof options.scopes === 'string'
+    ? options.scopes.split(/[,\s]+/).filter(Boolean)
+    : Array.isArray(options.scopes) ? options.scopes : []
+
+  return {
+    allowSignup: options.allowSignup === false ? false : true,
+    clientId: options.clientId,
+    login: options.login || null,
+    redirectUrl: options.redirectUrl || null,
+    scopes: scopesNormalized,
+    state: Math.random().toString(36).substr(2),
+    url: `${BASE_URL}?client_id=${options.clientId}`
+  }
+}