Add basic activity usecases

Author: Gerrit Garbereder

Task-Tracker-Usecases/build.gradle.kts

@@ -16,6 +16,7 @@ kotlin {
     sourceSets {
         val commonMain by getting {
             dependencies {
+                implementation("org.jetbrains.kotlinx:kotlinx-datetime:0.4.0")
                 implementation("com.garbereder.tasktracker.entities:Task-Tracker-Entities:1.0-SNAPSHOT")
             }
         }

Task-Tracker-Usecases/src/commonMain/kotlin/com/garbereder/tasktracker/usecases/tasks/AddActivity.kt

@@ -0,0 +1,14 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Activity
+import com.garbereder.tasktracker.entities.ActivityCollection
+import com.garbereder.tasktracker.entities.Task
+import com.garbereder.tasktracker.usecases.UseCase
+import kotlinx.datetime.Clock
+
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+
+class AddActivity(private val collection: ActivityCollection, private val activity: Activity): UseCase<Unit> {
+    override fun invoke(): Unit = collection.add(activity)
+}

Task-Tracker-Usecases/src/commonMain/kotlin/com/garbereder/tasktracker/usecases/tasks/StartActivity.kt

@@ -0,0 +1,13 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Activity
+import com.garbereder.tasktracker.entities.Task
+import com.garbereder.tasktracker.usecases.UseCase
+import kotlinx.datetime.Clock
+
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+
+class StartActivity(private val task: Task): UseCase<Activity> {
+    override fun invoke(): Activity = Activity("1", Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault()), null, task)
+}

Task-Tracker-Usecases/src/commonMain/kotlin/com/garbereder/tasktracker/usecases/tasks/StopActivity.kt

@@ -0,0 +1,13 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Activity
+import com.garbereder.tasktracker.entities.Task
+import com.garbereder.tasktracker.usecases.UseCase
+import kotlinx.datetime.Clock
+
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+
+class StopActivity(private val activity: Activity): UseCase<Activity> {
+    override fun invoke(): Activity = activity.copy(end = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault()))
+}

Task-Tracker-Usecases/src/commonTest/kotlin/com/garbereder/tasktracker/usecases/tasks/AddActivityTest.kt

@@ -0,0 +1,33 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Activity
+import com.garbereder.tasktracker.entities.ActivityCollection
+import com.garbereder.tasktracker.entities.Task
+import com.garbereder.tasktracker.entities.TaskCollection
+import io.mockative.*
+import kotlinx.datetime.Clock
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class AddActivityTest {
+
+    @Mock
+    val collection = mock(classOf<ActivityCollection>())
+
+    @Test
+    fun invoke_activity_callAdd() {
+        val task = Task("1","TaskName")
+        val time = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+        val activity = Activity("1", time, null, task)
+
+        given(collection).invocation { add(activity) }
+            .thenDoNothing()
+
+        AddActivity(collection, activity).invoke()
+
+        verify(collection).invocation { add(activity) }
+            .wasInvoked(exactly = once)
+    }
+}

Task-Tracker-Usecases/src/commonTest/kotlin/com/garbereder/tasktracker/usecases/tasks/StartActivityTest.kt

@@ -0,0 +1,24 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Task
+import kotlinx.datetime.Clock
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class StartActivityTest {
+
+    @Test
+    fun invoke_noInput_setStart() {
+        val task = Task("1","TaskName")
+        val before = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+        val activity = StartActivity(task).invoke()
+        val after = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+
+        assertTrue( activity.id == "1" )
+        assertTrue( activity.end === null )
+        assertTrue( activity.start >= before )
+        assertTrue( activity.start <= after )
+    }
+}

Task-Tracker-Usecases/src/commonTest/kotlin/com/garbereder/tasktracker/usecases/tasks/StopActivityTest.kt

@@ -0,0 +1,28 @@
+package com.garbereder.tasktracker.usecases.tasks
+
+import com.garbereder.tasktracker.entities.Activity
+import com.garbereder.tasktracker.entities.Task
+import kotlinx.datetime.Clock
+import kotlinx.datetime.TimeZone
+import kotlinx.datetime.toLocalDateTime
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class StopActivityTest {
+
+    @Test
+    fun invoke_noInput_setStart() {
+        val task = Task("1","TaskName")
+        val before = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+        val activity = Activity("1", before, null, task)
+        val activity2 = StopActivity(activity).invoke()
+        val after = Clock.System.now().toLocalDateTime(TimeZone.currentSystemDefault())
+
+        assertTrue( activity.end === null )
+
+        assertTrue( activity2.id == "1" )
+        assertTrue( activity2.start !== activity2.end )
+        assertTrue( activity2.end!! >= before )
+        assertTrue( activity2.end!! <= after )
+    }
+}