plugins {
  id 'com.android.application'
  id 'kotlin-android'
  id 'androidx.navigation.safeargs.kotlin'
  id 'kotlin-kapt'
}

android {
  compileSdk 31

  defaultConfig {
    applicationId "com.commonsware.todo"
    minSdk 21
    targetSdk 31
    versionCode 1
    versionName "1.0"

    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
  }

  buildTypes {
    release {
      minifyEnabled false
      proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
    }
  }

  buildFeatures {
    viewBinding true
  }

  compileOptions {
    coreLibraryDesugaringEnabled true
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
  }

  kotlinOptions {
    jvmTarget = '1.8'
  }

  packagingOptions {
    exclude 'META-INF/AL2.0'
    exclude 'META-INF/LGPL2.1'
  }
}

dependencies {
  implementation 'androidx.core:core-ktx:1.6.0'
  implementation 'androidx.appcompat:appcompat:1.3.1'
  implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
  implementation "androidx.recyclerview:recyclerview:1.2.1"
  implementation "androidx.navigation:navigation-fragment-ktx:$nav_version"
  implementation "androidx.navigation:navigation-ui-ktx:$nav_version"
  implementation 'com.google.android.material:material:1.4.0'
  implementation "io.insert-koin:koin-android:$koin_version"
  implementation "androidx.room:room-runtime:$room_version"
  implementation "androidx.room:room-ktx:$room_version"
  kapt "androidx.room:room-compiler:$room_version"
  coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:1.1.5'
  testImplementation 'junit:junit:4.13.2'
  testImplementation "org.mockito:mockito-inline:3.12.1"
  testImplementation "com.nhaarman.mockitokotlin2:mockito-kotlin:2.2.0"
  testImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.5.1'
  androidTestImplementation 'androidx.test.ext:junit:1.1.3'
  androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
  androidTestImplementation "androidx.arch.core:core-testing:2.1.0"
  androidTestImplementation 'org.jetbrains.kotlinx:kotlinx-coroutines-test:1.5.1'
}

package com.commonsware.todo.repo

import androidx.arch.core.executor.testing.InstantTaskExecutorRule
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.platform.app.InstrumentationRegistry
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.first
import kotlinx.coroutines.launch
import kotlinx.coroutines.test.runBlockingTest
import org.hamcrest.Matchers.empty
import org.hamcrest.Matchers.equalTo
import org.hamcrest.collection.IsIterableContainingInOrder.contains
import org.hamcrest.MatcherAssert.assertThat
import org.junit.Rule
import org.junit.Test
import org.junit.runner.RunWith

@RunWith(AndroidJUnit4::class)
class ToDoRepositoryTest {
  @get:Rule
  val instantTaskExecutorRule = InstantTaskExecutorRule()

  private val context = InstrumentationRegistry.getInstrumentation().targetContext
  private val db = ToDoDatabase.newTestInstance(context)

  @Test
  fun canAddItems() = runBlockingTest {
    val underTest = ToDoRepository(db.todoStore(), this)
    val results = mutableListOf<List<ToDoModel>>()

    val itemsJob = launch {
      underTest.items().collect { results.add(it) }
    }

    assertThat(results.size, equalTo(1))
    assertThat(results[0], empty())

    val testModel = ToDoModel("test model")

    underTest.save(testModel)

    assertThat(results.size, equalTo(2))
    assertThat(results[1], contains(testModel))
    assertThat(underTest.find(testModel.id).first(), equalTo(testModel))

    itemsJob.cancel()
  }

  @Test
  fun canModifyItems() = runBlockingTest {
    val underTest = ToDoRepository(db.todoStore(), this)
    val testModel = ToDoModel("test model")
    val replacement = testModel.copy(notes = "This is the replacement")
    val results = mutableListOf<List<ToDoModel>>()

    val itemsJob = launch {
      underTest.items().collect { results.add(it) }
    }

    assertThat(results[0], empty())

    underTest.save(testModel)

    assertThat(results[1], contains(testModel))

    underTest.save(replacement)

    assertThat(results[2], contains(replacement))

    itemsJob.cancel()
  }

  @Test
  fun canRemoveItems() = runBlockingTest {
    val underTest = ToDoRepository(db.todoStore(), this)
    val testModel = ToDoModel("test model")
    val results = mutableListOf<List<ToDoModel>>()

    val itemsJob = launch {
      underTest.items().collect { results.add(it) }
    }

    assertThat(results[0], empty())

    underTest.save(testModel)

    assertThat(results[1], contains(testModel))

    underTest.delete(testModel)

    assertThat(results[2], empty())

    itemsJob.cancel()
  }
}