Create SwitchUserAndOpenMessageDetailsActivity.kt

app/src/main/AndroidManifest.xml

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <!--
-  ~ Copyright (c) 2020 Proton Technologies AG
+  ~ Copyright (c) 2022 Proton Technologies AG
   ~
   ~ This file is part of ProtonMail.
   ~
@@ -193,6 +193,7 @@
             android:exported="false"
             android:label="@string/local_storage"
             android:screenOrientation="portrait" />
+        <activity android:name=".details.presentation.ui.SwitchUserAndOpenMessageDetailsActivity" />
         <activity
             android:name=".details.presentation.ui.MessageDetailsActivity"
             android:exported="false"

app/src/main/java/ch/protonmail/android/details/presentation/ui/SwitchUserAndOpenMessageDetailsActivity.kt

@@ -0,0 +1,69 @@
+/*
+ * Copyright (c) 2022 Proton Technologies AG
+ *
+ * This file is part of ProtonMail.
+ *
+ * ProtonMail is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * ProtonMail is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with ProtonMail. If not, see https://www.gnu.org/licenses/.
+ */
+
+package ch.protonmail.android.details.presentation.ui
+
+import android.content.Context
+import android.content.Intent
+import android.os.Bundle
+import androidx.appcompat.app.AppCompatActivity
+import ch.protonmail.android.domain.util.requireNotBlank
+import ch.protonmail.android.feature.account.AccountStateManager
+import me.proton.core.domain.entity.UserId
+import javax.inject.Inject
+
+/**
+ * Switch the current user and then open [MessageDetailsActivity]
+ * This is useful, for example, when tapping on a notification for the secondary user: this will help us avoid
+ *  background limitations, like opening an Activity.
+ */
+internal class SwitchUserAndOpenMessageDetailsActivity : AppCompatActivity() {
+
+    @Inject
+    lateinit var accountStateManager: AccountStateManager
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        val input = Input.fromIntent(intent)
+        accountStateManager.switch(input.recipientUserId)
+            .invokeOnCompletion { launchMessageDetailsActivity() }
+    }
+
+    private fun launchMessageDetailsActivity() {
+
+    }
+
+    data class Input(val recipientUserId: UserId) {
+
+        fun toIntent(context: Context) = Intent(context, SwitchUserAndOpenMessageDetailsActivity::class.java)
+            .putExtra(EXTRA_RECIPIENT_USER_ID, recipientUserId.id)
+
+        companion object {
+
+            private const val EXTRA_RECIPIENT_USER_ID = "extra.userId"
+
+            fun fromIntent(intent: Intent): Input {
+                val recipientUserId = requireNotBlank(intent.getStringExtra(EXTRA_RECIPIENT_USER_ID)) {
+                    "No user id found in the intent"
+                }
+                return Input(recipientUserId = UserId(recipientUserId))
+            }
+        }
+    }
+}