DispatcherModule.kt

import android.app.Application
import android.content.Context
import dagger.Module
import dagger.Provides
import dagger.hilt.InstallIn
import dagger.hilt.components.SingletonComponent
import kotlinx.coroutines.CoroutineDispatcher
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.MainCoroutineDispatcher
import javax.inject.Qualifier
import javax.inject.Singleton


@Module
@InstallIn(SingletonComponent::class)
object DispatcherModule {

    @Singleton
    @Provides
    fun provideContext(application: Application): Context = application.applicationContext

    @MainDispatcher
    @Provides
    @Singleton
    fun provideMainDispatcher(): MainCoroutineDispatcher = Dispatchers.Main

    @DefaultDispatcher
    @Provides
    @Singleton
    fun provideDefaultDispatcher(): CoroutineDispatcher = Dispatchers.Default

    @IoDispatcher
    @Provides
    @Singleton
    fun provideIODispatcher(): CoroutineDispatcher = Dispatchers.IO

    @UnconfinedDispatcher
    @Provides
    @Singleton
    fun provideUnconfinedDispatcher(): CoroutineDispatcher = Dispatchers.Unconfined

}


@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class IoDispatcher

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class MainDispatcher

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class DefaultDispatcher

@Qualifier
@Retention(AnnotationRetention.BINARY)
annotation class UnconfinedDispatcher