From 1db2f3256de5f175c93895487668ff91def003c5 Mon Sep 17 00:00:00 2001
From: Harsh Shandilya <me@msfjarvis.dev>
Date: Fri, 9 Sep 2022 11:47:37 +0530
Subject: [PATCH] coroutine-utils: init

---
 coroutine-utils/build.gradle.kts              |  9 +++++++++
 .../util/coroutines/DispatcherProvider.kt     | 20 +++++++++++++++++++
 settings.gradle.kts                           |  1 +
 3 files changed, 30 insertions(+)
 create mode 100644 coroutine-utils/build.gradle.kts
 create mode 100644 coroutine-utils/src/main/kotlin/dev/msfjarvis/claw/util/coroutines/DispatcherProvider.kt

diff --git a/coroutine-utils/build.gradle.kts b/coroutine-utils/build.gradle.kts
new file mode 100644
index 00000000..71a0b030
--- /dev/null
+++ b/coroutine-utils/build.gradle.kts
@@ -0,0 +1,9 @@
+plugins {
+  kotlin("jvm")
+  id("dev.msfjarvis.claw.kotlin-library")
+}
+
+dependencies {
+  api(libs.kotlinx.coroutines.core)
+  implementation(libs.dagger.hilt.core)
+}
diff --git a/coroutine-utils/src/main/kotlin/dev/msfjarvis/claw/util/coroutines/DispatcherProvider.kt b/coroutine-utils/src/main/kotlin/dev/msfjarvis/claw/util/coroutines/DispatcherProvider.kt
new file mode 100644
index 00000000..b156c60c
--- /dev/null
+++ b/coroutine-utils/src/main/kotlin/dev/msfjarvis/claw/util/coroutines/DispatcherProvider.kt
@@ -0,0 +1,20 @@
+package dev.msfjarvis.claw.util.coroutines
+
+import javax.inject.Inject
+import kotlinx.coroutines.CoroutineDispatcher
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+
+/** Interface to allow abstracting individual [CoroutineDispatcher]s out of class dependencies. */
+@OptIn(ExperimentalCoroutinesApi::class)
+interface DispatcherProvider {
+
+  fun main(): CoroutineDispatcher = Dispatchers.Main
+  fun default(): CoroutineDispatcher = Dispatchers.Default
+  fun io(): CoroutineDispatcher = Dispatchers.IO
+  fun unconfined(): CoroutineDispatcher = Dispatchers.Unconfined
+  fun database(): CoroutineDispatcher = Dispatchers.IO.limitedParallelism(1)
+}
+
+/** Concrete type for [DispatcherProvider] with all the defaults from the class. */
+class DefaultDispatcherProvider @Inject constructor() : DispatcherProvider
diff --git a/settings.gradle.kts b/settings.gradle.kts
index abcb1afb..327166f0 100644
--- a/settings.gradle.kts
+++ b/settings.gradle.kts
@@ -106,6 +106,7 @@ include(
   "api",
   "benchmark",
   "common",
+  "coroutine-utils",
   "database",
   "metadata-extractor",
   "model",