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MapViewModel.kt
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MapViewModel.kt
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package com.mindorks.kotlinFlow.learn.map
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import com.mindorks.kotlinFlow.data.api.ApiHelper
import com.mindorks.kotlinFlow.data.local.DatabaseHelper
import com.mindorks.kotlinFlow.data.local.entity.User
import com.mindorks.kotlinFlow.utils.Resource
import kotlinx.coroutines.flow.catch
import kotlinx.coroutines.flow.collect
import kotlinx.coroutines.flow.map
import kotlinx.coroutines.launch
class MapViewModel(
val apiHelper: ApiHelper,
dbHelper: DatabaseHelper
) : ViewModel() {
private val users = MutableLiveData<Resource<List<User>>>()
init {
fetchUsers()
}
private fun fetchUsers() {
viewModelScope.launch {
users.postValue(Resource.loading(null))
apiHelper.getUsers()
.map { apiUserList ->
val userList = mutableListOf<User>()
for (apiUser in apiUserList) {
val user = User(
apiUser.id,
apiUser.name,
apiUser.email,
apiUser.avatar
)
userList.add(user)
}
userList
}
.catch { e ->
users.postValue(Resource.error(e.toString(), null))
}
.collect {
users.postValue(Resource.success(it))
}
}
}
fun getUsers(): LiveData<Resource<List<User>>> {
return users
}
}