Joren/pokesearch
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use buildin functions instaid

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Joren
2024-04-30 03:11:29 +02:00
parent 7b36f08a26
commit 8c69116171
1 changed files with 11 additions and 20 deletions
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31
app/src/main/java/com/ti/mobpo/ui/viewmodels/PokeSearchViewModel.kt
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@@ -14,9 +14,9 @@ import kotlinx.coroutines.launch
import java.io.IOException import java.io.IOException
private const val SHOW_LIMIT = 20; private const val SHOW_LIMIT = 20
class PokeSearchViewModel(private val favouritesRepository: FavouritesRepository) : ViewModel() { class PokeSearchViewModel(private val favouritesRepository: FavouritesRepository) : ViewModel() {
private val service = PokeApi.retrofitService; private val service = PokeApi.retrofitService
private val _pokemonDetails = MutableStateFlow<List<PokemonDetails>?>(null) private val _pokemonDetails = MutableStateFlow<List<PokemonDetails>?>(null)
val pokemonDetails: StateFlow<List<PokemonDetails>?> = _pokemonDetails.asStateFlow() val pokemonDetails: StateFlow<List<PokemonDetails>?> = _pokemonDetails.asStateFlow()
@@ -43,10 +43,16 @@ class PokeSearchViewModel(private val favouritesRepository: FavouritesRepository
_isLoading.value = true _isLoading.value = true
viewModelScope.launch { viewModelScope.launch {
try { try {
val filteredList = _initialPokemonList.value?.binarySearch(query) val firstIndex = _initialPokemonList.value?.indexOfFirst { it.name.startsWith(query, ignoreCase = true) }
val lastIndex = _initialPokemonList.value?.indexOfLast { it.name.startsWith(query, ignoreCase = true) }
val detailsList = mutableListOf<PokemonDetails>() val detailsList = mutableListOf<PokemonDetails>()
if (filteredList != null) {
for (index in filteredList until minOf(_initialPokemonList.value?.size ?: 0, filteredList + SHOW_LIMIT)) { if (firstIndex != null && lastIndex != null) {
val endIndex = minOf(firstIndex + SHOW_LIMIT, lastIndex + 1)
val startIndex = maxOf(firstIndex, endIndex - SHOW_LIMIT)
for (index in startIndex until endIndex) {
val pokemonSpecies = _initialPokemonList.value!![index] val pokemonSpecies = _initialPokemonList.value!![index]
val details = service.getPokemonDetails(extractPokemonId(pokemonSpecies.url)) val details = service.getPokemonDetails(extractPokemonId(pokemonSpecies.url))
val isFavorite = favouritesRepository.isFavourite(details.id) val isFavorite = favouritesRepository.isFavourite(details.id)
@@ -62,21 +68,6 @@ class PokeSearchViewModel(private val favouritesRepository: FavouritesRepository
} }
} }
private fun List<PokemonSpecies>.binarySearch(query: String): Int {
var low = 0
var high = this.size - 1
while (low <= high) {
val mid = (low + high) ushr 1
val comparison = this[mid].name.compareTo(query, ignoreCase = true)
when {
comparison == 0 -> return mid
comparison < 0 -> low = mid + 1
else -> high = mid - 1
}
}
return low
}
private fun extractPokemonId(url: String): Int { private fun extractPokemonId(url: String): Int {
val parts = url.split("/") val parts = url.split("/")
return parts[parts.size - 2].toInt() return parts[parts.size - 2].toInt()