I push my tiles into my database

.idea/deviceManager.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="DeviceTable">
+    <option name="columnSorters">
+      <list>
+        <ColumnSorterState>
+          <option name="column" value="Name" />
+          <option name="order" value="ASCENDING" />
+        </ColumnSorterState>
+      </list>
+    </option>
+  </component>
+</project>

app/src/main/java/com/mirenkov/ktheightmap/MainActivity.kt

@@ -3,15 +3,11 @@ package com.mirenkov.ktheightmap
 import android.app.Application
 import android.content.Intent
 import android.os.Bundle
-import android.util.Log
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
 import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
-import androidx.compose.foundation.layout.BoxWithConstraints
-import androidx.compose.foundation.layout.absoluteOffset
-import androidx.compose.foundation.layout.fillMaxHeight
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.offset
 import androidx.compose.foundation.layout.padding
@@ -24,7 +20,6 @@ import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme.colorScheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Slider
-import androidx.compose.material3.Surface
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.mutableFloatStateOf
@@ -76,7 +71,7 @@ class MainActivity : ComponentActivity() {
 
 @Composable
 fun Main(vm: TileViewModel = viewModel()) {
-    var sliderValue = rememberSaveable { mutableFloatStateOf(1F) }
+    val sliderValue = rememberSaveable { mutableFloatStateOf(1F) }
     KtHeightMapTheme {
         Box(modifier = Modifier.background(color = colorScheme.background)) {
             Scaffold(

app/src/main/java/com/mirenkov/ktheightmap/SettingsActivity.kt

@@ -1,22 +1,27 @@
 package com.mirenkov.ktheightmap
 
-import android.graphics.BitmapFactory
+import android.app.Application
 import android.os.Bundle
 import android.util.Log
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent
 import androidx.activity.enableEdgeToEdge
+import androidx.activity.result.ActivityResultLauncher
 import androidx.compose.foundation.layout.Column
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.safeDrawingPadding
 import androidx.compose.material3.Button
 import androidx.compose.material3.Text
+import androidx.compose.runtime.Composable
 import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
+import androidx.lifecycle.viewmodel.compose.LocalViewModelStoreOwner
+import androidx.lifecycle.viewmodel.compose.viewModel
 import com.mirenkov.ktheightmap.ui.theme.KtHeightMapTheme
 import com.nareshchocha.filepickerlibrary.FilePickerResultContracts
+import com.nareshchocha.filepickerlibrary.models.DocumentFilePickerConfig
 import com.nareshchocha.filepickerlibrary.models.FilePickerResult
-import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.launch
 import java.io.FileInputStream
@@ -25,7 +30,10 @@ import java.util.zip.ZipInputStream
 
 class SettingsActivity : ComponentActivity() {
 
-    var filePath: String? = null
+    companion object {
+        var filePath: String? = null
+    }
+
     fun filePickerResult(result: FilePickerResult): String? {
         if (result.errorMessage != null) {
             Log.e(TAG, result.errorMessage ?: "")
@@ -41,47 +49,72 @@ class SettingsActivity : ComponentActivity() {
     }
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
-        val launcher = registerForActivityResult(FilePickerResultContracts.PickDocumentFile(),
+        val launcher = registerForActivityResult(FilePickerResultContracts.PickDocumentFile())
             { result -> filePath = filePickerResult(result) }
-        )
 
         enableEdgeToEdge()
         setContent {
-            val coroutineScope = rememberCoroutineScope()
-
-            KtHeightMapTheme {
-                Column(Modifier.fillMaxSize()
-                    .safeDrawingPadding()) {
-                    Button(onClick = {
-                        launcher.launch(null)
-                    }) { Text(text = "Select database") }
-                    Button(onClick = { coroutineScope.launch { processZip(filePath) } })  {
-                        Text(text = "Load database")
-                    }
-                }
+            val owner = LocalViewModelStoreOwner.current
+            owner?.let {
+                val viewModel: TileViewModel = viewModel(
+                    it,
+                    "TileViewModel2",
+                    TileViewModelFactory(LocalContext.current.applicationContext as Application)
+                )
+                SettingsMain(viewModel, launcher)
             }
         }
     }
 }
 
-suspend fun processZip(filePath: String?) = coroutineScope {
+@Composable
+fun SettingsMain(vm: TileViewModel, launcher: ActivityResultLauncher<DocumentFilePickerConfig?>) {
+    val coroutineScope = rememberCoroutineScope()
+    KtHeightMapTheme {
+        Column(Modifier.fillMaxSize()
+            .safeDrawingPadding()) {
+            Button(onClick = {
+                launcher.launch(null)
+            }) { Text(text = "Select database") }
+            Button(onClick = { coroutineScope.launch {
+                processZip(SettingsActivity.filePath).forEach {
+                    with(vm.repository) {
+                        val t = getTile(it.x, it.y, it.level)
+                        if (t == null) {
+                            pushTile(it)
+                            Log.i(TAG, "pushed to db: %d, %d, %d".format(it.level, it.x, it.y))
+                        }
+                        else
+                            Log.i(TAG, "found in db: %d, %d, %d".format(t.level, t.x, t.y))
+                    }
+                }
+            } }) { Text(text = "Load database") }
+        }
+    }
+}
+
+suspend fun processZip(filePath: String?): List<Tile> = coroutineScope {
+    val list: MutableList<Tile> = mutableListOf()
     filePath?.let {
         ZipInputStream(FileInputStream(it)).use { zipInputStream ->
             var entry = zipInputStream.nextEntry
             while (true) {
                 if (entry.name.endsWith(".jpg")) {
                     Log.i(TAG, entry.name)
-                    processEntry(zipInputStream, entry)
+                    val tile = processEntry(zipInputStream, entry)
+                    list.add(tile)
                 }
                 entry = zipInputStream.nextEntry
                 if (entry == null)
                 break
             }
+            Log.i(TAG, "got list")
         }
     }
+    return@coroutineScope list
 }
 
-fun processEntry(zis: ZipInputStream, entry: ZipEntry) {
+fun processEntry(zis: ZipInputStream, entry: ZipEntry): Tile {
     val ba = ByteArray(entry.size.toInt())
     var offset = 0
     var size = zis.read(ba, 0, ba.size)
@@ -93,5 +126,5 @@ fun processEntry(zis: ZipInputStream, entry: ZipEntry) {
 
     val ( level, x, y ) = regex.findAll(entry.name).map { it.value.toInt() }.toList()
     val base64 = ba.toBase64()
-    val tile = Tile(x, y, level, base64)
+    return Tile(x, y, level, base64)
 }

app/src/main/java/com/mirenkov/ktheightmap/TileRepository.kt

@@ -1,20 +1,28 @@
 package com.mirenkov.ktheightmap
 
+import android.util.Log
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.ExperimentalCoroutinesApi
+import kotlinx.coroutines.async
+import kotlinx.coroutines.launch
 
 class TileRepository(private val tileDao: TileDao) {
     private val coroutineScope = CoroutineScope(Dispatchers.Main)
 
     fun pushTile(tile: Tile) {
-        tileDao.pushTile(tile)
+        coroutineScope.launch(Dispatchers.IO) { tileDao.pushTile(tile) }
     }
 
-    fun getTile(x: Int, y: Int, level: Int): Tile? {
-        return tileDao.getTile(x, y, level)
+    @OptIn(ExperimentalCoroutinesApi::class)
+    suspend fun getTile(x: Int, y: Int, level: Int): Tile? {
+        val tileDeferred = coroutineScope.async(Dispatchers.IO) {
+            tileDao.getTile(x, y, level)
+        }
+        return tileDeferred.await()
     }
 
     fun clearTiles() {
-        tileDao.clearTiles()
+        coroutineScope.launch(Dispatchers.IO) { tileDao.clearTiles() }
     }
 }

app/src/main/java/com/mirenkov/ktheightmap/TileViewModel.kt

@@ -5,7 +5,7 @@ import androidx.compose.runtime.mutableStateOf
 import androidx.lifecycle.ViewModel
 
 class TileViewModel(application: Application): ViewModel() {
-    private val repository: TileRepository
+    val repository: TileRepository
 
     init {
         val tileDb = TileDB.getInstance(application)