/
RestaurantsRepository.kt
57 lines (48 loc) · 2.28 KB
/
RestaurantsRepository.kt
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package com.tolmachevroman.restaurants.models.restaurants
import android.arch.lifecycle.LiveData
import android.util.Log
import com.tolmachevroman.restaurants.datasources.database.NetworkBoundResource
import com.tolmachevroman.restaurants.datasources.webservice.Resource
import com.tolmachevroman.restaurants.datasources.webservice.WebService
import com.tolmachevroman.restaurants.utils.AppExecutors
import com.tolmachevroman.restaurants.utils.Utils
import retrofit2.Call
import javax.inject.Inject
import javax.inject.Singleton
/**
* Created by romantolmachev on 22/11/2017.
*/
@Singleton
open class RestaurantsRepository @Inject constructor(val webService: WebService, val restaurantsDao: RestaurantsDao,
val utils: Utils, val appExecutors: AppExecutors) {
val TAG = "RestaurantRepository"
open fun getRestaurants(cuisine: Int = 0): LiveData<Resource<List<Restaurant>>> {
return object : NetworkBoundResource<List<Restaurant>>(appExecutors) {
override fun saveNetworkCallResult(data: List<Restaurant>?) {
Log.d(TAG, "saveNetworkCallResult")
data?.filterNot {
(it.cuisine !in listOf(1, 2, 3)) or
it.name.isNullOrBlank() or
(it.lat == 0.0) or
(it.lng == 0.0)
}?.forEach { restaurantsDao.insertRestaurant(it) }
}
override fun shouldLoadFromNetwork(data: List<Restaurant>?): Boolean {
val shouldLoadFromNetwork = utils.hasConnection() && (data == null || data.isEmpty())
Log.d(TAG, "shouldLoadFromNetwork: $shouldLoadFromNetwork")
return shouldLoadFromNetwork
}
override fun loadFromDatabase(): LiveData<List<Restaurant>> {
Log.d(TAG, "loadFromDatabase")
return when (cuisine == 0) {
true -> restaurantsDao.queryRestaurants()
else -> restaurantsDao.queryRestaurantsByCuisine(cuisine)
}
}
override fun createNetworkCall(): Call<List<Restaurant>> {
Log.d(TAG, "createNetworkCall")
return webService.getRestaurants()
}
}.asLiveData()
}
}