Viewmodel, states and events for CompanyListings created

.editorconfig

@@ -4,3 +4,4 @@ root = true
 ktlint_standard_final-newline = disabled
 ktlint_standard_no-wildcard-imports = disabled
 ktlint_standard_function-naming = disabled
+ktlint_standard_package-name = disabled

app/src/main/java/com/example/stockmarketcheck/mainFeature/presentation/company_listings/CompanyListingsEvent.kt

@@ -0,0 +1,7 @@
+package com.example.stockmarketcheck.mainFeature.presentation.company_listings
+
+sealed class CompanyListingsEvent {
+    object Refresh : CompanyListingsEvent()
+
+    data class OnSearchQueryChange(val query: String) : CompanyListingsEvent()
+}

app/src/main/java/com/example/stockmarketcheck/mainFeature/presentation/company_listings/CompanyListingsState.kt

@@ -0,0 +1,10 @@
+package com.example.stockmarketcheck.mainFeature.presentation.company_listings
+
+import com.example.stockmarketcheck.mainFeature.domain.model.CompanyListing
+
+data class CompanyListingsState(
+    val companies: List<CompanyListing> = emptyList(),
+    val isLoading: Boolean = false,
+    val isRefreshing: Boolean = false,
+    val searchQuery: String = "",
+)

app/src/main/java/com/example/stockmarketcheck/mainFeature/presentation/company_listings/CompanyListingsViewModel.kt

@@ -0,0 +1,69 @@
+package com.example.stockmarketcheck.mainFeature.presentation.company_listings
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.example.stockmarketcheck.mainFeature.domain.repository.StockRepository
+import com.example.stockmarketcheck.util.Resource
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.delay
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class CompanyListingsViewModel
+    @Inject
+    constructor(
+        private val repository: StockRepository,
+    ) : ViewModel() {
+        // el estado es del tipo CompanyListingsState
+        var state by mutableStateOf(CompanyListingsState())
+
+        private var searchJob: Job? = null
+
+        fun onEvent(event: CompanyListingsEvent) {
+            when (event) {
+                is CompanyListingsEvent.Refresh -> {
+                    getCompanyListings(fetchFromRemote = true)
+                }
+                is CompanyListingsEvent.OnSearchQueryChange -> { // esto se triggea con cada letra que escribamos
+                    state = state.copy(searchQuery = event.query)
+                    searchJob?.cancel()
+                    searchJob =
+                        viewModelScope.launch {
+                            delay(500L)
+                            getCompanyListings()
+                        }
+                } // https://www.notion.so/StockMarket-app-fd555472e30c45ef8586565dc35d7d42?pvs=4#03a95fa091684af5b925f58e961b2c91
+            }
+        }
+
+        private fun getCompanyListings(
+            query: String = state.searchQuery.lowercase(),
+            fetchFromRemote: Boolean = false,
+        ) {
+            viewModelScope.launch {
+                repository
+                    .getCompanyListings(fetchFromRemote, query)
+                    .collect { result ->
+                        when (result) {
+                            is Resource.Success -> {
+                                result.data?.let { listings ->
+                                    state =
+                                        state.copy(
+                                            companies = listings,
+                                        )
+                                }
+                            } // https://www.notion.so/StockMarket-app-fd555472e30c45ef8586565dc35d7d42?pvs=4#302e2f3f8f404d058bd758d15ed998b8
+                            is Resource.Error -> Unit
+                            is Resource.Loading -> {
+                                state = state.copy(isLoading = result.isLoading) // aca hace referencia a la clase especifica de Loading
+                            } // (ya q el campo isLoading es especifico de Loading y no es algo q hereda de Resources )
+                        } // es como el field Breed de perro, aca le hace un Smart Cast por eso no se ve bien
+                    }
+            }
+        }
+    }