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‎.gitignore‎

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#built application files
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*.apk
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*.ap_
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# files for the dex VM
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*.dex
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# Java class files
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*.class
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# generated files
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bin/
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gen/
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# Local configuration file (sdk path, etc)
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local.properties
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# Windows thumbnail db
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Thumbs.db
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# OSX files
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.DS_Store
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# Android Studio
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*.iml
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.idea
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.gradle
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/build
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/captures
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.externalNativeBuild
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.cxx
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output.json
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# Deprecated
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/*/out
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/*/*/build
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/*/*/production
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*.iws
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*.ipr
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*~
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*.swp

‎app/.gitignore‎

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/build

‎app/build.gradle‎

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apply plugin: 'com.android.application'
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apply plugin: 'kotlin-android'
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apply plugin: 'kotlin-android-extensions'
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apply plugin: 'kotlin-kapt'
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apply plugin: "androidx.navigation.safeargs.kotlin"
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android {
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compileSdkVersion 30
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buildToolsVersion "30.0.0"
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defaultConfig {
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applicationId "com.koshsu.githubsearch"
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minSdkVersion 21
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targetSdkVersion 30
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versionCode 1
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versionName "1.0"
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testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
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}
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buildTypes {
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release {
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minifyEnabled false
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proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
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}
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}
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compileOptions {
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sourceCompatibility JavaVersion.VERSION_1_8
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targetCompatibility JavaVersion.VERSION_1_8
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}
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kotlinOptions {
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jvmTarget = "1.8"
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}
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buildFeatures {
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dataBinding true
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}
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}
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dependencies {
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implementation fileTree(dir: "libs", include: ["*.jar"])
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testImplementation 'junit:junit:4.12'
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// Android
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implementation "androidx.core:core-ktx:1.3.2"
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implementation 'androidx.legacy:legacy-support-v4:1.0.0'
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// Kotlin
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implementation "org.jetbrains.kotlin:kotlin-stdlib:1.4.10"
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// Coroutines
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def coroutines_version = '1.3.6'
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-core:$coroutines_version"
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implementation "org.jetbrains.kotlinx:kotlinx-coroutines-android:$coroutines_version"
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// ViewModel & LiveData
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def lifecycle_version = '2.2.0'
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implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lifecycle_version"
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implementation "androidx.lifecycle:lifecycle-extensions:$lifecycle_version"
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implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lifecycle_version"
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// Material Design & Widgets
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implementation 'com.google.android.material:material:1.2.1'
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implementation 'androidx.appcompat:appcompat:1.2.0'
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implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
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// Kodein (DI)
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def kodein_version = '6.2.1'
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implementation "org.kodein.di:kodein-di-generic-jvm:$kodein_version"
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implementation "org.kodein.di:kodein-di-framework-android-x:$kodein_version"
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// Retrofit and GSON
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def retrofit_version = '2.9.0'
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implementation "com.squareup.retrofit2:retrofit:$retrofit_version"
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implementation "com.squareup.retrofit2:converter-gson:$retrofit_version"
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// Room (DB)
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def room_version = '2.2.5'
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implementation "androidx.room:room-runtime:$room_version"
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implementation "androidx.room:room-ktx:$room_version"
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kapt "androidx.room:room-compiler:$room_version"
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// Navigation Architecture
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def navigation_version = '2.3.1'
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implementation "androidx.navigation:navigation-fragment-ktx:$navigation_version"
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implementation "androidx.navigation:navigation-ui-ktx:$navigation_version"
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// Glide
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def glide_version = '4.11.0'
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implementation "com.github.bumptech.glide:glide:$glide_version"
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kapt "com.github.bumptech.glide:compiler:$glide_version"
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// Preference
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implementation 'androidx.preference:preference-ktx:1.1.1'
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}

‎app/proguard-rules.pro‎

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# Add project specific ProGuard rules here.
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# You can control the set of applied configuration files using the
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# proguardFiles setting in build.gradle.
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#
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# For more details, see
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# http://developer.android.com/guide/developing/tools/proguard.html
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# If your project uses WebView with JS, uncomment the following
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# and specify the fully qualified class name to the JavaScript interface
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# class:
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#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
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# public *;
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#}
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# Uncomment this to preserve the line number information for
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# debugging stack traces.
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#-keepattributes SourceFile,LineNumberTable
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# If you keep the line number information, uncomment this to
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# hide the original source file name.
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#-renamesourcefileattribute SourceFile

‎app/src/main/AndroidManifest.xml‎

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<?xml version="1.0" encoding="utf-8"?>
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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package="com.koshsu.githubsearch">
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<uses-permission android:name="android.permission.INTERNET" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<application
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android:name=".application.App"
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android:allowBackup="true"
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android:icon="@mipmap/logo_github_search"
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android:label="@string/app_name"
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android:roundIcon="@mipmap/logo_github_search_round"
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android:supportsRtl="true"
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android:theme="@style/AppTheme">
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<activity android:name=".ui.MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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<category android:name="android.intent.category.LAUNCHER" />
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</intent-filter>
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</activity>
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</application>
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</manifest>

‎app/src/main/java/com/koshsu/githubsearch/application/App.kt‎

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package com.koshsu.githubsearch.application
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import android.app.Application
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import com.koshsu.githubsearch.data.database.AppDatabase
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import com.koshsu.githubsearch.data.network.GithubApi
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import com.koshsu.githubsearch.data.preference.PreferenceProvider
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import com.koshsu.githubsearch.data.repository.DetailsRepository
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import com.koshsu.githubsearch.data.repository.SearchRepository
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import com.koshsu.githubsearch.ui.details.DetailsViewModelFactory
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import com.koshsu.githubsearch.ui.search.SearchViewModelFactory
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import org.kodein.di.Kodein
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import org.kodein.di.KodeinAware
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import org.kodein.di.android.x.androidXModule
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import org.kodein.di.generic.bind
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import org.kodein.di.generic.instance
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import org.kodein.di.generic.provider
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import org.kodein.di.generic.singleton
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class App : Application(), KodeinAware {
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override val kodein = Kodein.lazy {
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import(androidXModule(this@App))
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bind() from singleton { GithubApi() }
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bind() from singleton { AppDatabase(instance()) }
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bind() from singleton { PreferenceProvider(instance()) }
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bind() from singleton { SearchRepository(instance(), instance(), instance(), instance()) }
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bind() from singleton { DetailsRepository(instance(), instance(), instance()) }
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bind() from provider { SearchViewModelFactory(instance()) }
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bind() from provider { DetailsViewModelFactory(instance()) }
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}
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}

‎app/src/main/java/com/koshsu/githubsearch/data/Status.kt‎

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package com.koshsu.githubsearch.data
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// Status of Data in Repository
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sealed class Status <M> {
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// Status - Loading
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class Loading<M> : Status<M>()
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// Status - Success
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data class Success<M>(val data: M) : Status<M>()
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// Status - Error
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data class Error<M>(val errorMessage: String) : Status<M>()
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companion object {
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// Returns Loading instance
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fun <M> loading() = Loading<M>()
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// Returns Success instance with data to emit
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fun <M> success(data: M) =
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Success(data)
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// Returns Error instance with error message
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fun <M> error(errorMessage: String) =
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Error<M>(errorMessage)
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}
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}

‎app/src/main/java/com/koshsu/githubsearch/data/database/AppDatabase.kt‎

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package com.koshsu.githubsearch.data.database
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import android.content.Context
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import androidx.room.Database
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import androidx.room.Room
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import androidx.room.RoomDatabase
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import com.koshsu.githubsearch.data.database.dao.RepoAndOwnerDao
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import com.koshsu.githubsearch.data.database.model.Owner
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import com.koshsu.githubsearch.data.database.model.Repo
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@Database(
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entities = [Repo::class, Owner::class],
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version = 1,
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exportSchema = false
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)
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abstract class AppDatabase : RoomDatabase() {
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abstract fun getRepoAndOwnerDao() : RepoAndOwnerDao
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companion object {
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// Singleton prevents multiple instances of database opening at the same time.
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@Volatile
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private var instance: AppDatabase? = null
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// If the instance is not null, then return it, if it is, then build the database
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operator fun invoke(context: Context) = instance ?: synchronized(this) {
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instance ?: buildDatabase(context).also {
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instance = it
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}
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}
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// Function that builds the database
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private fun buildDatabase(context: Context) = Room.databaseBuilder(
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context.applicationContext,
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AppDatabase::class.java,
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"database"
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).build()
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}
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}

‎app/src/main/java/com/koshsu/githubsearch/data/database/dao/RepoAndOwnerDao.kt‎

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package com.koshsu.githubsearch.data.database.dao
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import androidx.room.*
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import com.koshsu.githubsearch.data.database.model.Owner
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import com.koshsu.githubsearch.data.database.model.Repo
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import com.koshsu.githubsearch.data.database.model.RepoWithOwner
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import kotlinx.coroutines.flow.Flow
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import kotlinx.coroutines.flow.flow
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/**
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* This class provides general DAO for both entities [Repo], [Owner]
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* "Abstract class" is used instead of "interface" to provide ability
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* to use my own functions for insertion and reading data
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* */
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@Dao
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abstract class RepoAndOwnerDao {
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/** Public functions for database manipulations */
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fun insertReposWithOwner(repos: List<Repo>) {
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// delete previous data
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deleteAllRepos()
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deleteAllOwners()
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// save new data
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for (r in repos) {
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r.owner.repoId = r.id
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upsertOwner(r.owner)
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}
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insertRepos(repos)
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}
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fun getReposWithOwner() : Flow<List<Repo>> {
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val reposWithOwner = _getAllWithOwnerSync()
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val repos: MutableList<Repo> = mutableListOf()
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for (i in reposWithOwner) {
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i.repo.owner = i.owner
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repos.add(i.repo)
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}
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return flow { emit(repos) }
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}
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fun getRepoWithOwnerById(repoId: Long) : Flow<Repo> {
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val repoWithOwner = _getRepoWithOwnerById(repoId)
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val repo = repoWithOwner.repo
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repo.owner = repoWithOwner.owner
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return flow { emit(repo) }
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}
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/**
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* Generated functions by Room
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* "_"prefix means that these functions are private for this class
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* (Room doesn't allow private functions)
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*/
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// insert or update if exists
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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abstract fun upsertRepos(repos: List<Repo>)
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@Insert(onConflict = OnConflictStrategy.IGNORE)
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abstract fun insertRepos(repos: List<Repo>)
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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abstract fun upsertRepo(vararg repo: Repo)
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@Insert(onConflict = OnConflictStrategy.REPLACE)
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abstract fun upsertOwner(owner: Owner)
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@Transaction
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@Query("SELECT * FROM Repo, Owner WHERE Repo.id = Owner.repoId ORDER BY Repo.stars DESC")
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abstract fun _getAllWithOwnerSync() : List<RepoWithOwner>
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@Transaction
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@Query("SELECT * FROM Repo INNER JOIN Owner ON Owner.repoId = Repo.id WHERE Repo.id = :repoId")
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abstract fun _getRepoWithOwnerById(repoId: Long) : RepoWithOwner
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@Query("DELETE FROM Repo")
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abstract fun deleteAllRepos()
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@Query("DELETE FROM Owner")
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abstract fun deleteAllOwners()
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}

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