Add lucky numbers (#216)

2019-01-25 20:54:27 +01:00 · 2019-01-25 20:54:27 +01:00 · 4da812af39
commit 4da812af39
parent d3c13b8fc3
29 changed files with 658 additions and 15 deletions
--- a/.travis.yml
+++ b/.travis.yml
@ -41,7 +41,7 @@ before_script:
    - "curl -H 'Cache-Control: no-cache' https://raw.githubusercontent.com/fossas/fossa-cli/master/install.sh | sudo bash"

 script:
-  - ./gradlew build -x test -x lint -x fabricGenerateResourcesRelease -x packageRelease --stacktrace --daemon
+  - ./gradlew dependencies --stacktrace --daemon
  - fossa --no-ansi || true
  - ./gradlew lint -x fabricGenerateResourcesRelease --stacktrace --daemon
  - ./gradlew test -x fabricGenerateResourcesRelease --stacktrace --daemon
--- a/app/src/androidTest/java/io/github/wulkanowy/data/repositories/local/LuckyNumberLocalTest.kt
+++ b/app/src/androidTest/java/io/github/wulkanowy/data/repositories/local/LuckyNumberLocalTest.kt
@ -0,0 +1,47 @@
+package io.github.wulkanowy.data.repositories.local
+
+import androidx.room.Room
+import androidx.test.core.app.ApplicationProvider
+import androidx.test.ext.junit.runners.AndroidJUnit4
+import io.github.wulkanowy.data.db.AppDatabase
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.db.entities.Semester
+import org.junit.After
+import org.junit.Before
+import org.junit.Test
+import org.junit.runner.RunWith
+import org.threeten.bp.LocalDate
+import kotlin.test.assertEquals
+
+@RunWith(AndroidJUnit4::class)
+class LuckyNumberLocalTest {
+
+    private lateinit var luckyNumberLocal: LuckyNumberLocal
+
+    private lateinit var testDb: AppDatabase
+
+    @Before
+    fun createDb() {
+        testDb = Room.inMemoryDatabaseBuilder(ApplicationProvider.getApplicationContext(), AppDatabase::class.java)
+            .build()
+        luckyNumberLocal = LuckyNumberLocal(testDb.luckyNumberDao)
+    }
+
+    @After
+    fun closeDb() {
+        testDb.close()
+    }
+
+    @Test
+    fun saveAndReadTest() {
+        luckyNumberLocal.saveLuckyNumber(LuckyNumber(1, LocalDate.of(2019, 1, 20), 14))
+
+        val luckyNumber = luckyNumberLocal.getLuckyNumber(Semester(1, 1, 2, "", 3, 1),
+            LocalDate.of(2019, 1, 20)
+        ).blockingGet()
+
+        assertEquals(1, luckyNumber.studentId)
+        assertEquals(LocalDate.of(2019, 1, 20), luckyNumber.date)
+        assertEquals(14, luckyNumber.luckyNumber)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/RepositoryModule.kt
@ -113,4 +113,8 @@ internal class RepositoryModule {
    @Singleton
    @Provides
    fun provideSubjectDao(database: AppDatabase) = database.subjectDao
+
+    @Singleton
+    @Provides
+    fun provideLuckyNumberDao(database: AppDatabase) = database.luckyNumberDao
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/AppDatabase.kt
@ -6,6 +6,8 @@ import androidx.room.Room
 import androidx.room.RoomDatabase
 import androidx.room.RoomDatabase.JournalMode.TRUNCATE
 import androidx.room.TypeConverters
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
 import io.github.wulkanowy.data.db.dao.AttendanceDao
 import io.github.wulkanowy.data.db.dao.AttendanceSummaryDao
 import io.github.wulkanowy.data.db.dao.ExamDao
@ -13,6 +15,7 @@ import io.github.wulkanowy.data.db.dao.GradeDao
 import io.github.wulkanowy.data.db.dao.GradeSummaryDao
 import io.github.wulkanowy.data.db.dao.MessagesDao
 import io.github.wulkanowy.data.db.dao.HomeworkDao
+import io.github.wulkanowy.data.db.dao.LuckyNumberDao
 import io.github.wulkanowy.data.db.dao.NoteDao
 import io.github.wulkanowy.data.db.dao.SemesterDao
 import io.github.wulkanowy.data.db.dao.StudentDao
@ -25,11 +28,13 @@ import io.github.wulkanowy.data.db.entities.Grade
 import io.github.wulkanowy.data.db.entities.GradeSummary
 import io.github.wulkanowy.data.db.entities.Message
 import io.github.wulkanowy.data.db.entities.Homework
+import io.github.wulkanowy.data.db.entities.LuckyNumber
 import io.github.wulkanowy.data.db.entities.Note
 import io.github.wulkanowy.data.db.entities.Semester
 import io.github.wulkanowy.data.db.entities.Student
 import io.github.wulkanowy.data.db.entities.Subject
 import io.github.wulkanowy.data.db.entities.Timetable
+import io.github.wulkanowy.data.db.migrations.Migration2
 import javax.inject.Singleton

@Singleton
@ -46,9 +51,10 @@ import javax.inject.Singleton
        Message::class,
        Note::class,
        Homework::class,
-        Subject::class
+        Subject::class,
+        LuckyNumber::class
    ],
-    version = 1,
+    version = 2,
    exportSchema = false
 )
@TypeConverters(Converters::class)
@ -58,6 +64,9 @@ abstract class AppDatabase : RoomDatabase() {
        fun newInstance(context: Context): AppDatabase {
            return Room.databaseBuilder(context, AppDatabase::class.java, "wulkanowy_database")
                .setJournalMode(TRUNCATE)
+                .addMigrations(
+                    Migration2()
+                )
                .build()
        }
    }
@ -85,4 +94,6 @@ abstract class AppDatabase : RoomDatabase() {
    abstract val homeworkDao: HomeworkDao

    abstract val subjectDao: SubjectDao
+
+    abstract val luckyNumberDao: LuckyNumberDao
 }
--- a/app/src/main/java/io/github/wulkanowy/data/db/dao/LuckyNumberDao.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/dao/LuckyNumberDao.kt
@ -0,0 +1,29 @@
+package io.github.wulkanowy.data.db.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import androidx.room.Update
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.reactivex.Maybe
+import org.threeten.bp.LocalDate
+import javax.inject.Singleton
+
+@Singleton
+@Dao
+interface LuckyNumberDao {
+
+    @Insert
+    fun insert(luckyNumber: LuckyNumber)
+
+    @Update
+    fun update(luckyNumber: LuckyNumber)
+
+    @Delete
+    fun delete(luckyNumber: LuckyNumber)
+
+    @Query("SELECT * FROM LuckyNumbers WHERE student_id = :studentId AND date = :date")
+    fun loadFromDate(studentId: Int, date: LocalDate): Maybe<LuckyNumber>
+
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/entities/LuckyNumber.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/entities/LuckyNumber.kt
@ -0,0 +1,28 @@
+package io.github.wulkanowy.data.db.entities
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import org.threeten.bp.LocalDate
+import java.io.Serializable
+
+@Entity(tableName = "LuckyNumbers")
+data class LuckyNumber (
+
+    @ColumnInfo(name = "student_id")
+    var studentId: Int,
+
+    var date: LocalDate,
+
+    @ColumnInfo(name = "lucky_number")
+    var luckyNumber: Int
+
+) : Serializable {
+
+    @PrimaryKey(autoGenerate = true)
+    var id: Long = 0
+
+    @ColumnInfo(name = "is_notified")
+    var isNotified: Boolean = true
+
+}
--- a/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration2.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/db/migrations/Migration2.kt
@ -0,0 +1,16 @@
+package io.github.wulkanowy.data.db.migrations
+
+import androidx.room.migration.Migration
+import androidx.sqlite.db.SupportSQLiteDatabase
+
+class Migration2 : Migration(1, 2) {
+
+    override fun migrate(database: SupportSQLiteDatabase) {
+        database.execSQL("CREATE TABLE LuckyNumbers (" +
+            "id INTEGER NOT NULL PRIMARY KEY, " +
+            "is_notified INTEGER NOT NULL, " +
+            "student_id INTEGER NOT NULL, " +
+            "date INTEGER NOT NULL, " +
+            "lucky_number INTEGER NOT NULL)")
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/LuckyNumberRepository.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/LuckyNumberRepository.kt
@ -0,0 +1,52 @@
+package io.github.wulkanowy.data.repositories
+
+import com.github.pwittchen.reactivenetwork.library.rx2.ReactiveNetwork
+import com.github.pwittchen.reactivenetwork.library.rx2.internet.observing.InternetObservingSettings
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.db.entities.Semester
+import io.github.wulkanowy.data.repositories.local.LuckyNumberLocal
+import io.github.wulkanowy.data.repositories.remote.LuckyNumberRemote
+import io.reactivex.Completable
+import io.reactivex.Maybe
+import org.threeten.bp.LocalDate
+import java.net.UnknownHostException
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class LuckyNumberRepository @Inject constructor(
+    private val settings: InternetObservingSettings,
+    private val local: LuckyNumberLocal,
+    private val remote: LuckyNumberRemote
+) {
+
+    fun getLuckyNumber(semester: Semester, forceRefresh: Boolean = false, notify: Boolean = false): Maybe<LuckyNumber> {
+        return local.getLuckyNumber(semester, LocalDate.now()).filter { !forceRefresh }
+            .switchIfEmpty(ReactiveNetwork.checkInternetConnectivity(settings)
+                .flatMapMaybe {
+                    if (it) remote.getLuckyNumber(semester)
+                    else Maybe.error(UnknownHostException())
+                }.flatMap { new ->
+                    local.getLuckyNumber(semester, LocalDate.now())
+                        .doOnSuccess { old ->
+                            if (new != old) {
+                                local.deleteLuckyNumber(old)
+                                local.saveLuckyNumber(new.apply {
+                                    if (notify) isNotified = false
+                                })
+                            }
+                        }
+                        .doOnComplete {
+                            local.saveLuckyNumber(new.apply {
+                                if (notify) isNotified = false
+                            })
+                        }
+                }.flatMap({ local.getLuckyNumber(semester, LocalDate.now()) }, { Maybe.error(it) },
+                    { local.getLuckyNumber(semester, LocalDate.now()) })
+            )
+    }
+
+    fun updateLuckyNumber(luckyNumber: LuckyNumber): Completable {
+        return local.updateLuckyNumber(luckyNumber)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/local/LuckyNumberLocal.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/local/LuckyNumberLocal.kt
@ -0,0 +1,30 @@
+package io.github.wulkanowy.data.repositories.local
+
+import io.github.wulkanowy.data.db.dao.LuckyNumberDao
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.db.entities.Semester
+import io.reactivex.Completable
+import io.reactivex.Maybe
+import org.threeten.bp.LocalDate
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class LuckyNumberLocal @Inject constructor(private val luckyNumberDb: LuckyNumberDao) {
+
+    fun getLuckyNumber(semester: Semester, date: LocalDate): Maybe<LuckyNumber> {
+        return luckyNumberDb.loadFromDate(semester.studentId, date)
+    }
+
+    fun saveLuckyNumber(luckyNumber: LuckyNumber) {
+        luckyNumberDb.insert(luckyNumber)
+    }
+
+    fun updateLuckyNumber(luckyNumber: LuckyNumber): Completable {
+        return Completable.fromCallable { luckyNumberDb.update(luckyNumber) }
+    }
+
+    fun deleteLuckyNumber(luckyNumber: LuckyNumber) {
+        luckyNumberDb.delete(luckyNumber)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/data/repositories/remote/LuckyNumberRemote.kt
+++ b/app/src/main/java/io/github/wulkanowy/data/repositories/remote/LuckyNumberRemote.kt
@ -0,0 +1,26 @@
+package io.github.wulkanowy.data.repositories.remote
+
+import io.github.wulkanowy.api.Api
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.data.db.entities.Semester
+import io.reactivex.Maybe
+import io.reactivex.Single
+import org.threeten.bp.LocalDate
+import javax.inject.Inject
+import javax.inject.Singleton
+
+@Singleton
+class LuckyNumberRemote @Inject constructor(private val api: Api) {
+
+    fun getLuckyNumber(semester: Semester): Maybe<LuckyNumber> {
+        return Single.just(api.apply { diaryId = semester.diaryId })
+            .flatMapMaybe { it.getLuckyNumber() }
+            .map {
+                LuckyNumber(
+                    studentId = semester.studentId,
+                    date = LocalDate.now(),
+                    luckyNumber = it
+                )
+            }
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/services/job/SyncWorker.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/job/SyncWorker.kt
@ -8,6 +8,7 @@ import io.github.wulkanowy.data.repositories.ExamRepository
 import io.github.wulkanowy.data.repositories.GradeRepository
 import io.github.wulkanowy.data.repositories.GradeSummaryRepository
 import io.github.wulkanowy.data.repositories.HomeworkRepository
+import io.github.wulkanowy.data.repositories.LuckyNumberRepository
 import io.github.wulkanowy.data.repositories.MessagesRepository
 import io.github.wulkanowy.data.repositories.MessagesRepository.MessageFolder.RECEIVED
 import io.github.wulkanowy.data.repositories.NoteRepository
@ -16,12 +17,13 @@ import io.github.wulkanowy.data.repositories.SemesterRepository
 import io.github.wulkanowy.data.repositories.StudentRepository
 import io.github.wulkanowy.data.repositories.TimetableRepository
 import io.github.wulkanowy.services.notification.GradeNotification
+import io.github.wulkanowy.services.notification.LuckyNumberNotification
 import io.github.wulkanowy.services.notification.MessageNotification
 import io.github.wulkanowy.services.notification.NoteNotification
 import io.github.wulkanowy.utils.friday
 import io.github.wulkanowy.utils.isHolidays
 import io.github.wulkanowy.utils.monday
-import io.reactivex.Single
+import io.reactivex.Completable
 import io.reactivex.disposables.CompositeDisposable
 import org.threeten.bp.LocalDate
 import timber.log.Timber
@ -59,6 +61,9 @@ class SyncWorker : SimpleJobService() {
    @Inject
    lateinit var homework: HomeworkRepository

+    @Inject
+    lateinit var luckyNumber: LuckyNumberRepository
+
    @Inject
    lateinit var prefRepository: PreferencesRepository

@ -88,18 +93,19 @@ class SyncWorker : SimpleJobService() {

        disposable.add(student.getCurrentStudent()
            .flatMap { semester.getCurrentSemester(it, true).map { semester -> semester to it } }
-            .flatMapPublisher {
-                Single.merge(
+            .flatMapCompletable {
+                Completable.merge(
                    listOf(
-                        gradesDetails.getGrades(it.first, true, notify),
-                        gradesSummary.getGradesSummary(it.first, true),
-                        attendance.getAttendance(it.first, start, end, true),
-                        exam.getExams(it.first, start, end, true),
-                        timetable.getTimetable(it.first, start, end, true),
-                        message.getMessages(it.second, RECEIVED, true, notify),
-                        note.getNotes(it.first, true, notify),
-                        homework.getHomework(it.first, LocalDate.now(), true),
-                        homework.getHomework(it.first, LocalDate.now().plusDays(1), true)
+                        gradesDetails.getGrades(it.first, true, notify).ignoreElement(),
+                        gradesSummary.getGradesSummary(it.first, true).ignoreElement(),
+                        attendance.getAttendance(it.first, start, end, true).ignoreElement(),
+                        exam.getExams(it.first, start, end, true).ignoreElement(),
+                        timetable.getTimetable(it.first, start, end, true).ignoreElement(),
+                        message.getMessages(it.second, RECEIVED, true, notify).ignoreElement(),
+                        note.getNotes(it.first, true, notify).ignoreElement(),
+                        homework.getHomework(it.first, LocalDate.now(), true).ignoreElement(),
+                        homework.getHomework(it.first, LocalDate.now().plusDays(1), true).ignoreElement(),
+                        luckyNumber.getLuckyNumber(it.first, true, notify).ignoreElement()
                    )
                )
            }
@ -119,6 +125,7 @@ class SyncWorker : SimpleJobService() {
        sendGradeNotifications()
        sendMessageNotification()
        sendNoteNotification()
+        sendLuckyNumberNotification()
    }

    private fun sendGradeNotifications() {
@ -170,6 +177,19 @@ class SyncWorker : SimpleJobService() {
        )
    }

+    private fun sendLuckyNumberNotification() {
+        disposable.add(student.getCurrentStudent()
+            .flatMap { semester.getCurrentSemester(it) }
+            .flatMapMaybe { luckyNumber.getLuckyNumber(it) }
+            .filter { !it.isNotified }
+            .doOnSuccess {
+                LuckyNumberNotification(applicationContext).sendNotification(it)
+            }
+            .map { it.apply { isNotified = true } }
+            .flatMapCompletable { luckyNumber.updateLuckyNumber(it) }
+            .subscribe({}, { Timber.e("Lucky number notification sending failed") }))
+    }
+
    override fun onDestroy() {
        super.onDestroy()
        disposable.clear()
--- a/app/src/main/java/io/github/wulkanowy/services/notification/LuckyNumberNotification.kt
+++ b/app/src/main/java/io/github/wulkanowy/services/notification/LuckyNumberNotification.kt
@ -0,0 +1,48 @@
+package io.github.wulkanowy.services.notification
+
+import android.annotation.TargetApi
+import android.app.Notification
+import android.app.NotificationChannel
+import android.app.NotificationManager
+import android.app.PendingIntent
+import android.content.Context
+import androidx.core.app.NotificationCompat
+import androidx.core.content.ContextCompat
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.ui.modules.main.MainActivity
+
+class LuckyNumberNotification(context: Context) : BaseNotification(context) {
+
+    private val channelId = "Lucky_Number_Notify"
+
+    @TargetApi(26)
+    override fun createChannel(channelId: String) {
+        notificationManager.createNotificationChannel(NotificationChannel(
+            channelId, context.getString(R.string.notify_lucky_number_channel), NotificationManager.IMPORTANCE_HIGH
+        ).apply {
+            enableLights(true)
+            enableVibration(true)
+            lockscreenVisibility = Notification.VISIBILITY_PUBLIC
+        })
+    }
+
+    fun sendNotification(luckyNumber: LuckyNumber) {
+        notify(notificationBuilder(channelId)
+            .setContentTitle(context.getString(R.string.notify_lucky_number_new_item_title))
+            .setContentText(context.getString(R.string.notify_lucky_number_new_item, luckyNumber.luckyNumber))
+            .setSmallIcon(R.drawable.ic_stat_notify_lucky_number)
+            .setAutoCancel(true)
+            .setDefaults(NotificationCompat.DEFAULT_ALL)
+            .setPriority(NotificationCompat.PRIORITY_HIGH)
+            .setColor(ContextCompat.getColor(context, R.color.colorPrimary))
+            .setContentIntent(
+                PendingIntent.getActivity(context, 0,
+                    MainActivity.getStartIntent(context).putExtra(MainActivity.EXTRA_START_MENU_INDEX, 4),
+                    PendingIntent.FLAG_UPDATE_CURRENT
+                )
+            )
+            .build()
+        )
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberFragment.kt
@ -0,0 +1,64 @@
+package io.github.wulkanowy.ui.modules.luckynumber
+
+import android.os.Bundle
+import android.view.LayoutInflater
+import android.view.View
+import android.view.ViewGroup
+import io.github.wulkanowy.R
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.ui.base.session.BaseSessionFragment
+import io.github.wulkanowy.ui.modules.main.MainView
+import kotlinx.android.synthetic.main.fragment_lucky_number.*
+import javax.inject.Inject
+
+class LuckyNumberFragment : BaseSessionFragment(), LuckyNumberView, MainView.TitledView {
+
+    @Inject
+    lateinit var presenter: LuckyNumberPresenter
+
+    companion object {
+        fun newInstance() = LuckyNumberFragment()
+    }
+
+    override val titleStringId: Int
+        get() = R.string.lucky_number_title
+
+    override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
+        return inflater.inflate(R.layout.fragment_lucky_number, container, false)
+    }
+
+    override fun onActivityCreated(savedInstanceState: Bundle?) {
+        super.onActivityCreated(savedInstanceState)
+        presenter.onAttachView(this)
+    }
+
+    override fun initView() {
+        showContent(false)
+        showProgress(true)
+        luckyNumberSwipe.setOnRefreshListener { presenter.onSwipeRefresh() }
+    }
+
+    override fun updateData(data: LuckyNumber) {
+        luckyNumberText.text = data.luckyNumber.toString()
+    }
+
+    override fun hideRefresh() {
+        luckyNumberSwipe.isRefreshing = false
+    }
+
+    override fun showEmpty(show: Boolean) {
+        luckyNumberEmpty.visibility = if (show) View.VISIBLE else View.GONE
+    }
+
+    override fun showProgress(show: Boolean) {
+        luckyNumberProgress.visibility = if (show) View.VISIBLE else View.GONE
+    }
+
+    override fun showContent(show: Boolean) {
+        luckyNumberContent.visibility = if (show) View.VISIBLE else View.GONE
+    }
+
+    override fun isViewEmpty(): Boolean {
+        return luckyNumberText.text.isBlank()
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberPresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberPresenter.kt
@ -0,0 +1,65 @@
+package io.github.wulkanowy.ui.modules.luckynumber
+
+import io.github.wulkanowy.data.repositories.LuckyNumberRepository
+import io.github.wulkanowy.data.repositories.SemesterRepository
+import io.github.wulkanowy.data.repositories.StudentRepository
+import io.github.wulkanowy.ui.base.BasePresenter
+import io.github.wulkanowy.ui.base.session.SessionErrorHandler
+import io.github.wulkanowy.utils.FirebaseAnalyticsHelper
+import io.github.wulkanowy.utils.SchedulersProvider
+import io.reactivex.MaybeSource
+import javax.inject.Inject
+
+class LuckyNumberPresenter @Inject constructor(
+    private val errorHandler: SessionErrorHandler,
+    private val schedulers: SchedulersProvider,
+    private val luckyNumberRepository: LuckyNumberRepository,
+    private val studentRepository: StudentRepository,
+    private val semesterRepository: SemesterRepository,
+    private val analytics: FirebaseAnalyticsHelper
+) : BasePresenter<LuckyNumberView>(errorHandler) {
+
+    override fun onAttachView(view: LuckyNumberView) {
+        super.onAttachView(view)
+        view.initView()
+        loadData()
+    }
+
+    private fun loadData(forceRefresh: Boolean = false) {
+        disposable.apply {
+            clear()
+            add(studentRepository.getCurrentStudent()
+                .flatMap { semesterRepository.getCurrentSemester(it) }
+                .flatMapMaybe { luckyNumberRepository.getLuckyNumber(it, forceRefresh) }
+                .subscribeOn(schedulers.backgroundThread)
+                .observeOn(schedulers.mainThread)
+                .doFinally {
+                    view?.run {
+                        hideRefresh()
+                        showProgress(false)
+                    }
+                }
+                .subscribe({
+                    view?.apply {
+                        updateData(it)
+                        showContent(true)
+                        showEmpty(false)
+                    }
+                    analytics.logEvent("load_lucky_number", mapOf("force_refresh" to forceRefresh))
+                }, {
+                    view?.run { showEmpty(isViewEmpty()) }
+                    errorHandler.dispatch(it)
+                }, {
+                    view?.run {
+                        showContent(false)
+                        showEmpty(true)
+                    }
+                })
+            )
+        }
+    }
+
+    fun onSwipeRefresh() {
+        loadData(true)
+    }
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/luckynumber/LuckyNumberView.kt
@ -0,0 +1,21 @@
+package io.github.wulkanowy.ui.modules.luckynumber
+
+import io.github.wulkanowy.data.db.entities.LuckyNumber
+import io.github.wulkanowy.ui.base.session.BaseSessionView
+
+interface LuckyNumberView : BaseSessionView {
+
+    fun initView()
+
+    fun updateData(data: LuckyNumber)
+
+    fun hideRefresh()
+
+    fun showEmpty(show: Boolean)
+
+    fun showProgress(show: Boolean)
+
+    fun showContent(show: Boolean)
+
+    fun isViewEmpty(): Boolean
+}
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainModule.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/main/MainModule.kt
@ -16,6 +16,7 @@ import io.github.wulkanowy.ui.modules.exam.ExamFragment
 import io.github.wulkanowy.ui.modules.grade.GradeFragment
 import io.github.wulkanowy.ui.modules.grade.GradeModule
 import io.github.wulkanowy.ui.modules.homework.HomeworkFragment
+import io.github.wulkanowy.ui.modules.luckynumber.LuckyNumberFragment
 import io.github.wulkanowy.ui.modules.message.MessageFragment
 import io.github.wulkanowy.ui.modules.message.MessageModule
 import io.github.wulkanowy.ui.modules.message.preview.MessagePreviewFragment
@ -86,6 +87,10 @@ abstract class MainModule {
    @ContributesAndroidInjector
    abstract fun bindHomeworkFragment(): HomeworkFragment

+    @PerFragment
+    @ContributesAndroidInjector
+    abstract fun bindLuckyNumberFragment(): LuckyNumberFragment
+
    @PerFragment
    @ContributesAndroidInjector
    abstract fun bindsAccountDialog(): AccountDialog
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/more/MoreFragment.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/more/MoreFragment.kt
@ -13,6 +13,7 @@ import io.github.wulkanowy.R
 import io.github.wulkanowy.ui.base.BaseFragment
 import io.github.wulkanowy.ui.modules.about.AboutFragment
 import io.github.wulkanowy.ui.modules.homework.HomeworkFragment
+import io.github.wulkanowy.ui.modules.luckynumber.LuckyNumberFragment
 import io.github.wulkanowy.ui.modules.main.MainActivity
 import io.github.wulkanowy.ui.modules.main.MainView
 import io.github.wulkanowy.ui.modules.message.MessageFragment
@ -60,6 +61,14 @@ class MoreFragment : BaseFragment(), MoreView, MainView.TitledView, MainView.Mai
            }
        }

+    override val luckyNumberRes: Pair<String, Drawable?>?
+        get() {
+            return context?.run {
+                getString(R.string.lucky_number_title) to
+                    ContextCompat.getDrawable(this, R.drawable.ic_more_lucky_number_24dp)
+            }
+        }
+
    override val settingsRes: Pair<String, Drawable?>?
        get() {
            return context?.run {
@ -114,6 +123,10 @@ class MoreFragment : BaseFragment(), MoreView, MainView.TitledView, MainView.Mai
        (activity as? MainActivity)?.pushView(NoteFragment.newInstance())
    }

+    override fun openLuckyNumberView() {
+        (activity as? MainActivity)?.pushView(LuckyNumberFragment.newInstance())
+    }
+
    override fun openSettingsView() {
        (activity as? MainActivity)?.pushView(SettingsFragment.newInstance())
    }
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/more/MorePresenter.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/more/MorePresenter.kt
@ -23,6 +23,7 @@ class MorePresenter @Inject constructor(errorHandler: ErrorHandler) : BasePresen
                    messagesRes?.first -> openMessagesView()
                    homeworkRes?.first -> openHomeworkView()
                    noteRes?.first -> openNoteView()
+                    luckyNumberRes?.first -> openLuckyNumberView()
                    settingsRes?.first -> openSettingsView()
                    aboutRes?.first -> openAboutView()
                }
@ -42,6 +43,7 @@ class MorePresenter @Inject constructor(errorHandler: ErrorHandler) : BasePresen
                messagesRes?.let { MoreItem(it.first, it.second) },
                homeworkRes?.let { MoreItem(it.first, it.second) },
                noteRes?.let { MoreItem(it.first, it.second) },
+                luckyNumberRes?.let { MoreItem(it.first, it.second) },
                settingsRes?.let { MoreItem(it.first, it.second) },
                aboutRes?.let { MoreItem(it.first, it.second) })
            )
--- a/app/src/main/java/io/github/wulkanowy/ui/modules/more/MoreView.kt
+++ b/app/src/main/java/io/github/wulkanowy/ui/modules/more/MoreView.kt
@ -11,6 +11,8 @@ interface MoreView : BaseView {

    val noteRes: Pair<String, Drawable?>?

+    val luckyNumberRes: Pair<String, Drawable?>?
+
    val settingsRes: Pair<String, Drawable?>?

    val aboutRes: Pair<String, Drawable?>?
@ -30,4 +32,6 @@ interface MoreView : BaseView {
    fun openHomeworkView()

    fun openNoteView()
+
+    fun openLuckyNumberView()
 }
--- a/app/src/main/res/drawable-anydpi-v24/ic_stat_notify_lucky_number.xml
+++ b/app/src/main/res/drawable-anydpi-v24/ic_stat_notify_lucky_number.xml
@ -0,0 +1,14 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="26.086956"
+    android:viewportHeight="26.086956"
+    android:tint="#FFFFFF">
+    <group
+        android:translateX="1.0434783"
+        android:translateY="1.0434783">
+        <path
+            android:fillColor="#FFFFFF"
+            android:pathData="M12,11.18C15.3,8.18 17,6.64 17,4.69C17,3.19 15.75,2 14.25,2C13.39,2 12.57,2.36 12,3C11.43,2.36 10.61,2 9.69,2C8.19,2 7,3.25 7,4.75C7,6.64 8.7,8.18 12,11.18M11.18,12C8.18,8.7 6.64,7 4.69,7C3.19,7 2,8.25 2,9.75C2,10.61 2.36,11.43 3,12C2.36,12.57 2,13.39 2,14.31C2,15.81 3.25,17 4.75,17C6.64,17 8.18,15.3 11.18,12M12.83,12C15.82,15.3 17.36,17 19.31,17C20.81,17 22,15.75 22,14.25C22,13.39 21.64,12.57 21,12C21.64,11.43 22,10.61 22,9.69C22,8.19 20.75,7 19.25,7C17.36,7 15.82,8.7 12.83,12M12,12.82C8.7,15.82 7,17.36 7,19.31C7,20.81 8.25,22 9.75,22C10.61,22 11.43,21.64 12,21C12.57,21.64 13.39,22 14.31,22C15.81,22 17,20.75 17,19.25C17,17.36 15.3,15.82 12,12.82Z" />
+    </group>
+</vector>
--- a/app/src/main/res/drawable-hdpi/ic_stat_notify_lucky_number.png
+++ b/app/src/main/res/drawable-hdpi/ic_stat_notify_lucky_number.png
--- a/app/src/main/res/drawable-mdpi/ic_stat_notify_lucky_number.png
+++ b/app/src/main/res/drawable-mdpi/ic_stat_notify_lucky_number.png
--- a/app/src/main/res/drawable-xhdpi/ic_stat_notify_lucky_number.png
+++ b/app/src/main/res/drawable-xhdpi/ic_stat_notify_lucky_number.png
--- a/app/src/main/res/drawable-xxhdpi/ic_stat_notify_lucky_number.png
+++ b/app/src/main/res/drawable-xxhdpi/ic_stat_notify_lucky_number.png
--- a/app/src/main/res/drawable/ic_more_lucky_number_24dp.xml
+++ b/app/src/main/res/drawable/ic_more_lucky_number_24dp.xml
@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24"
+    android:viewportHeight="24">
+  <path
+      android:fillColor="#FF000000"
+      android:pathData="M12,11.18C15.3,8.18 17,6.64 17,4.69C17,3.19 15.75,2 14.25,2C13.39,2 12.57,2.36 12,3C11.43,2.36 10.61,2 9.69,2C8.19,2 7,3.25 7,4.75C7,6.64 8.7,8.18 12,11.18M11.18,12C8.18,8.7 6.64,7 4.69,7C3.19,7 2,8.25 2,9.75C2,10.61 2.36,11.43 3,12C2.36,12.57 2,13.39 2,14.31C2,15.81 3.25,17 4.75,17C6.64,17 8.18,15.3 11.18,12M12.83,12C15.82,15.3 17.36,17 19.31,17C20.81,17 22,15.75 22,14.25C22,13.39 21.64,12.57 21,12C21.64,11.43 22,10.61 22,9.69C22,8.19 20.75,7 19.25,7C17.36,7 15.82,8.7 12.83,12M12,12.82C8.7,15.82 7,17.36 7,19.31C7,20.81 8.25,22 9.75,22C10.61,22 11.43,21.64 12,21C12.57,21.64 13.39,22 14.31,22C15.81,22 17,20.75 17,19.25C17,17.36 15.3,15.82 12,12.82Z"/>
+</vector>
--- a/app/src/main/res/layout/fragment_lucky_number.xml
+++ b/app/src/main/res/layout/fragment_lucky_number.xml
@ -0,0 +1,73 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.coordinatorlayout.widget.CoordinatorLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent">
+
+    <ProgressBar
+        android:id="@+id/luckyNumberProgress"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:indeterminate="true"
+        android:visibility="gone" />
+
+    <androidx.swiperefreshlayout.widget.SwipeRefreshLayout
+        android:id="@+id/luckyNumberSwipe"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent">
+
+        <LinearLayout
+            android:id="@+id/luckyNumberContent"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:gravity="center"
+            android:orientation="vertical">
+
+            <TextView
+                android:layout_width="300dp"
+                android:layout_height="wrap_content"
+                android:gravity="center"
+                android:text="@string/lucky_number_header"
+                android:textSize="24sp" />
+
+            <TextView
+                android:id="@+id/luckyNumberText"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                tools:text="14"
+                android:textSize="52sp" />
+
+        </LinearLayout>
+
+    </androidx.swiperefreshlayout.widget.SwipeRefreshLayout>
+
+    <LinearLayout
+        android:id="@+id/luckyNumberEmpty"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:gravity="center"
+        android:orientation="vertical"
+        android:padding="10dp"
+        android:visibility="gone">
+
+        <androidx.appcompat.widget.AppCompatImageView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:minWidth="100dp"
+            android:minHeight="100dp"
+            app:srcCompat="@drawable/ic_more_lucky_number_24dp"
+            app:tint="?android:attr/textColorPrimary" />
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="20dp"
+            android:gravity="center"
+            android:text="@string/lucky_number_empty"
+            android:textSize="20sp" />
+
+    </LinearLayout>
+
+</androidx.coordinatorlayout.widget.CoordinatorLayout>
--- a/app/src/main/res/values-pl/strings.xml
+++ b/app/src/main/res/values-pl/strings.xml
@ -184,6 +184,15 @@
    <!--Homework-->
    <string name="homework_no_items">Brak zadań domowych</string>

+    <!--Lucky number-->
+    <string name="lucky_number_title">Szczęśliwy numerek</string>
+    <string name="lucky_number_header">Dzisiejszym szczęśliwym numerkiem jest</string>
+    <string name="lucky_number_empty">Brak informacji o szczęśliwym numerku</string>
+
+    <!--Lucky number notify-->
+    <string name="notify_lucky_number_channel">Nowe szczęśliwe numerki</string>
+    <string name="notify_lucky_number_new_item_title">Szczęśliwy numerek na dzisiaj</string>
+    <string name="notify_lucky_number_new_item">Dziś szczęśliwym numerkiem jest: %d</string>

    <!--Account-->
    <string name="account_add_new">Dodaj konto</string>
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@ -167,6 +167,15 @@
    <!--Homework-->
    <string name="homework_no_items">No info about homework</string>

+    <!--Lucky number-->
+    <string name="lucky_number_title">Lucky number</string>
+    <string name="lucky_number_header">Today\'s lucky number is</string>
+    <string name="lucky_number_empty">No info about the lucky number</string>
+
+    <!--Lucky number notify-->
+    <string name="notify_lucky_number_channel">New lucky numbers</string>
+    <string name="notify_lucky_number_new_item_title">Lucky number for today</string>
+    <string name="notify_lucky_number_new_item">Today\'s lucky number is: %d</string>

    <!--Account-->
    <string name="account_add_new">Add account</string>
--- a/app/src/test/java/io/github/wulkanowy/data/repositories/remote/LuckyNumberRemoteTest.kt
+++ b/app/src/test/java/io/github/wulkanowy/data/repositories/remote/LuckyNumberRemoteTest.kt
@ -0,0 +1,44 @@
+package io.github.wulkanowy.data.repositories.remote
+
+import io.github.wulkanowy.api.Api
+import io.github.wulkanowy.data.db.entities.Semester
+import io.mockk.MockKAnnotations
+import io.mockk.every
+import io.mockk.impl.annotations.MockK
+import io.mockk.impl.annotations.SpyK
+import io.reactivex.Maybe
+import org.junit.Assert.assertEquals
+import org.junit.Before
+import org.junit.Test
+import org.threeten.bp.LocalDate
+
+class LuckyNumberRemoteTest {
+
+    @SpyK
+    private var mockApi = Api()
+
+    @MockK
+    private lateinit var semesterMock: Semester
+
+    @Before
+    fun initApi() {
+        MockKAnnotations.init(this)
+    }
+
+    @Test
+    fun getLuckyNumberTest() {
+        every { mockApi.getLuckyNumber() } returns Maybe.just(14)
+
+        every { mockApi.diaryId } returns 1
+        every { semesterMock.studentId } returns 1
+        every { semesterMock.diaryId } returns 1
+
+        val luckyNumber = LuckyNumberRemote(mockApi)
+            .getLuckyNumber(semesterMock)
+            .blockingGet()
+
+        assertEquals(14, luckyNumber.luckyNumber)
+        assertEquals(LocalDate.now(), luckyNumber.date)
+        assertEquals(semesterMock.studentId, luckyNumber.studentId)
+    }
+}