From 644a8a6110e9ccd5aad18db4ba023fdc64c87565 Mon Sep 17 00:00:00 2001
From: Harsh Shandilya <me@msfjarvis.dev>
Date: Thu, 27 Aug 2020 20:55:40 +0530
Subject: [PATCH] Create a rudimentary DI container for Room

Signed-off-by: Harsh Shandilya <me@msfjarvis.dev>
---
 app/src/main/AndroidManifest.xml              |  1 +
 .../java/dev/msfjarvis/todo/Application.kt    | 11 +++++++++++
 .../main/java/dev/msfjarvis/todo/di/Graph.kt  | 19 +++++++++++++++++++
 3 files changed, 31 insertions(+)
 create mode 100644 app/src/main/java/dev/msfjarvis/todo/Application.kt
 create mode 100644 app/src/main/java/dev/msfjarvis/todo/di/Graph.kt

diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 55c2153c..a2915cbf 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -3,6 +3,7 @@
     package="dev.msfjarvis.todo">
 
     <application
+        android:name=".Application"
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
         android:label="@string/app_name"
diff --git a/app/src/main/java/dev/msfjarvis/todo/Application.kt b/app/src/main/java/dev/msfjarvis/todo/Application.kt
new file mode 100644
index 00000000..c0c267f0
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/todo/Application.kt
@@ -0,0 +1,11 @@
+package dev.msfjarvis.todo
+
+import android.app.Application
+import dev.msfjarvis.todo.di.Graph
+
+class Application : Application() {
+  override fun onCreate() {
+    super.onCreate()
+    Graph.provide(this)
+  }
+}
diff --git a/app/src/main/java/dev/msfjarvis/todo/di/Graph.kt b/app/src/main/java/dev/msfjarvis/todo/di/Graph.kt
new file mode 100644
index 00000000..c13ded68
--- /dev/null
+++ b/app/src/main/java/dev/msfjarvis/todo/di/Graph.kt
@@ -0,0 +1,19 @@
+package dev.msfjarvis.todo.di
+
+import android.content.Context
+import androidx.room.Room
+import dev.msfjarvis.todo.data.source.TodoDatabase
+
+/**
+ * Rudimentary DI container to initialize singletons, will be switched to Hilt when architecture becomes
+ * a focus again.
+ */
+object Graph {
+
+  lateinit var database: TodoDatabase
+
+  fun provide(context: Context) {
+    database = Room.databaseBuilder(context, TodoDatabase::class.java, "data.db")
+      .fallbackToDestructiveMigration().build()
+  }
+}