Bimba.git

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package ml.adamsprogs.bimba.dashboard.ui.home

import android.content.SharedPreferences
import android.os.Handler
import android.os.Looper
import android.text.Editable
import android.text.TextWatcher
import androidx.lifecycle.LiveData
import androidx.lifecycle.MutableLiveData
import androidx.lifecycle.ViewModel
import androidx.lifecycle.viewModelScope
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.launch
import kotlinx.coroutines.withContext
import ml.adamsprogs.bimba.api.*
import java.io.InputStream

class HomeViewModel : ViewModel() {

	private val mutableItems = MutableLiveData<List<Item>>()
	val items: LiveData<List<Item>> = mutableItems

	fun getItems(server: Server, query: String) {
		viewModelScope.launch {
			val itemsStream = queryItems(server, query, limit = 6)
			if (itemsStream != null) {
				mutableItems.value = unmarshallItemResponse(itemsStream)
			}
		}
	}

	private suspend fun unmarshallItemResponse(stream: InputStream): List<Item> {
		return withContext(Dispatchers.IO) {
			when (val response = ItemsResponse.unmarshall(stream)) {
				is ItemsSuccess -> {
					return@withContext response.items
				}
				else -> {
					 TODO("Error response")
				}
			}
		}
	}

	inner class SearchBarWatcher(private val preferences: SharedPreferences) :
		TextWatcher {
		private val handler = Handler(Looper.getMainLooper())
		private var workRunnable = Runnable {}

		override fun beforeTextChanged(s: CharSequence?, start: Int, count: Int, after: Int) {
		}

		override fun onTextChanged(s: CharSequence?, start: Int, before: Int, count: Int) {
		}

		override fun afterTextChanged(s: Editable?) {
			handler.removeCallbacks(workRunnable)
			workRunnable = Runnable {
				val host = preferences.getString("host", "bimba.apiote.xyz")!!
				val text = s.toString()
				getItems(
					Server(
						host, preferences.getString("token", "")!!,
						preferences.getString("${host}_feeds", "")!!
					), text)
			}
			handler.postDelayed(workRunnable, 1000) // todo(ux,low) make good time (probably between 500, 1000ms)
		}
	}
}