RATT added

app/src/main/java/com/mntechnique/otpmobileauth/auth/RetrieveAuthTokenTask.kt

@@ -0,0 +1,45 @@
+package com.mntechnique.otpmobileauth.auth
+
+import android.accounts.Account
+import android.accounts.AccountManager
+import android.accounts.AccountManagerCallback
+import android.accounts.AccountManagerFuture
+import android.content.Context
+import android.os.AsyncTask
+import android.os.Bundle
+import android.util.Log
+
+import com.mntechnique.otpmobileauth.R
+
+/**
+ * Created by revant on 28/7/17.
+ */
+
+class RetrieveAuthTokenTask(private val context: Context, private val callback: AuthReqCallback) : AsyncTask<String, Void, Void>() {
+
+    private val exception: Exception? = null
+    private var authToken: String? = null
+
+    override fun doInBackground(vararg urls: String): Void? {
+        var accounts: Array<Account>? = null
+        val am = AccountManager.get(context)
+        accounts = am.getAccountsByType(context.resources.getString(R.string.package_name))
+        if (accounts!!.size == 1) {
+            val account = accounts[0]
+            am.getAuthToken(account, AccountGeneral.AUTHTOKEN_TYPE_FULL_ACCESS, null, true, { future ->
+                try {
+                    val bundle = future.result
+                    authToken = bundle.getString(AccountManager.KEY_AUTHTOKEN)
+                    callback.onSuccessResponse(authToken!!)
+                    am.invalidateAuthToken(account.type, authToken)
+                } catch (e: Exception) {
+                    Log.d("error", e.message)
+                    callback.onErrorResponse(e.toString())
+                }
+            }, null)
+        } else {
+            Log.d("Accounts", "NOT 1 account found!")
+        }
+        return null
+    }
+}