OsmAnd/OsmAnd-telegram/src/net/osmand/telegram/helpers/ShowLocationHelper.kt

package net.osmand.telegram.helpers

import android.graphics.Color
import net.osmand.aidl.map.ALatLon
import net.osmand.telegram.TelegramApplication
import org.drinkless.td.libcore.telegram.TdApi

class ShowLocationHelper(private val app: TelegramApplication) {

	companion object {
		private const val MAP_LAYER_ID = "telegram_layer"
	}

	private val telegramHelper = app.telegramHelper
	private val osmandHelper = app.osmandHelper

	var showingLocation: Boolean = false
		private set

	private fun setMapLayer() {
		osmandHelper.addMapLayer(MAP_LAYER_ID, "Telegram", 5.5f, null)
	}

	fun showLocationOnMap(chatTitle: String, message: TdApi.Message) {
		if (osmandHelper.isOsmandConnected()) {
			val content = message.content
			if (content is TdApi.MessageLocation) {
				var userName = ""
				val user = telegramHelper.getUser(message.senderUserId)
				if (user != null) {
					userName = "${user.firstName} ${user.lastName}".trim()
					if (userName.isEmpty()) {
						userName = user.username
					}
					if (userName.isEmpty()) {
						userName = user.phoneNumber
					}
				}
				if (userName.isEmpty()) {
					userName = message.senderUserId.toString()
				}
				setMapLayer()
				osmandHelper.addMapPoint(MAP_LAYER_ID, "${chatTitle}_${message.senderUserId}", userName, userName,
						chatTitle, Color.RED, ALatLon(content.location.latitude, content.location.longitude), null)
			}
		}
	}

	fun showChatMessages(chatTitle: String) {
		if (osmandHelper.isOsmandConnected()) {
			val messages = telegramHelper.getChatMessages(chatTitle)
			for (message in messages) {
				showLocationOnMap(chatTitle, message)
			}
		}
	}

	fun hideChatMessages(chatTitle: String) {
		if (osmandHelper.isOsmandConnected()) {
			val messages = telegramHelper.getChatMessages(chatTitle)
			for (message in messages) {
				val user = telegramHelper.getUser(message.senderUserId)
				if (user != null) {
					osmandHelper.removeMapPoint(MAP_LAYER_ID, "${chatTitle}_${message.senderUserId}")
				}
			}
		}
	}

	fun startShowingLocation() {
		if (!showingLocation) {
			showingLocation = true
			app.startUserLocationService()
		}
	}

	fun stopShowingLocation() {
		if (showingLocation) {
			showingLocation = false
			app.stopUserLocationService()
		}
	}
}