add start stop delete

app/src/main/java/eu/m724/vastapp/activity/dashboard/screen/Instances.kt

@@ -49,7 +49,7 @@ fun InstancesScreen(dashboardViewModel: DashboardViewModel) {
 
     // TODO actually get instances
 
-    if (rentedInstances.size > 0) {
+    if (rentedInstances.isNotEmpty()) {
         ContextualFlowRow(
             modifier = Modifier
                 .fillMaxWidth()
@@ -66,6 +66,12 @@ fun InstancesScreen(dashboardViewModel: DashboardViewModel) {
                 sshButtonClick = {
                     dashboardViewModel.sshButtonClick(activity, it)
                 },
+                actionButtonClick = {
+                    dashboardViewModel.toggleInstance(it)
+                },
+                deleteButtonClick = {
+                    dashboardViewModel.deleteInstance(it)
+                }
             )
         }
     } else {
@@ -89,6 +95,8 @@ fun RentedInstanceCard(
     rentedInstance: RentedInstance,
     termuxAvailable: Int,
     sshButtonClick: (RentedInstance) -> Unit,
+    actionButtonClick: (RentedInstance) -> Unit,
+    deleteButtonClick: (RentedInstance) -> Unit,
 ) {
     val instance by remember(rentedInstance) { derivedStateOf { rentedInstance.instance } }
     val label by remember(instance) { derivedStateOf {
@@ -103,27 +111,66 @@ fun RentedInstanceCard(
             Column(
                 horizontalAlignment = Alignment.End
             ) {
-                Button( // TODO consider other buttons
+                Row {
-                    modifier = Modifier.height(24.dp),
+                    Button(
-                    contentPadding = PaddingValues(0.dp),
+                        modifier = Modifier.size(24.dp),
-                    onClick = { sshButtonClick(rentedInstance) }
+                        contentPadding = PaddingValues(0.dp),
-                ) {
+                        onClick = { deleteButtonClick(rentedInstance) },
-                    if (termuxAvailable > -1) {
+                    ) {
                         Icon(
-                            painter = painterResource(id = R.drawable.termux_icon),
+                            modifier = Modifier.size(16.dp),
-                            contentDescription = "Run in Termux"
+                            painter = painterResource(id = R.drawable.baseline_delete_24),
+                            contentDescription = "Delete instance"
                         )
-                        Text("ssh")
+                    }
-                        Spacer(modifier = Modifier.size(4.dp)) // necessary because TODO the termux icon has padding
+
-                    } else {
+                    Spacer(modifier = Modifier.width(4.dp))
-                        Spacer(modifier = Modifier.size(1.dp)) // TODO make this not needed?
+
-                        Icon(
+                    Button(
-                            modifier = Modifier.size(12.dp),
+                        modifier = Modifier.size(24.dp),
-                            painter = painterResource(id = R.drawable.copy_regular), // TODO copy icon here
+                        contentPadding = PaddingValues(0.dp),
-                            contentDescription = "Copy command"
+                        onClick = { actionButtonClick(rentedInstance) },
-                        )
+                        enabled = rentedInstance.status == rentedInstance.targetStatus
-                        Spacer(modifier = Modifier.size(6.dp))
+                    ) {
-                        Text("ssh")
+                        if (rentedInstance.status == "running") {
+                            Icon(
+                                modifier = Modifier.size(16.dp),
+                                painter = painterResource(id = R.drawable.baseline_stop_24),
+                                contentDescription = "Stop instance"
+                            )
+                        } else {
+                            Icon(
+                                modifier = Modifier.size(16.dp),
+                                painter = painterResource(id = R.drawable.baseline_play_arrow_24),
+                                contentDescription = "Start instance"
+                            )
+                        }
+                    }
+
+                    Spacer(modifier = Modifier.width(4.dp))
+
+                    Button(
+                        modifier = Modifier.height(24.dp),
+                        contentPadding = PaddingValues(0.dp),
+                        onClick = { sshButtonClick(rentedInstance) }
+                    ) {
+                        if (termuxAvailable > -1) {
+                            Icon(
+                                painter = painterResource(id = R.drawable.termux_icon),
+                                contentDescription = "Run in Termux"
+                            )
+                            Text("ssh")
+                            Spacer(modifier = Modifier.size(4.dp)) // necessary because TODO the termux icon has padding
+                        } else {
+                            Spacer(modifier = Modifier.size(1.dp)) // TODO make this not needed?
+                            Icon(
+                                modifier = Modifier.size(12.dp),
+                                painter = painterResource(id = R.drawable.copy_regular), // TODO copy icon here
+                                contentDescription = "Copy command"
+                            )
+                            Spacer(modifier = Modifier.size(6.dp))
+                            Text("ssh")
+                        }
                     }
                 }
 

app/src/main/java/eu/m724/vastapp/vastai/api/JsonUrlRequestCallback.kt

@@ -0,0 +1,16 @@
+package eu.m724.vastapp.vastai.api
+
+import eu.m724.vastapp.vastai.ApiFailure
+import org.json.JSONObject
+
+class JsonUrlRequestCallback(
+    onSuccess: (JSONObject) -> Unit,
+    onFailure: (ApiFailure) -> Unit
+) : StringUrlRequestCallback({ stringResponse ->
+    try {
+        val jsonResponse = JSONObject(stringResponse)
+        onSuccess(jsonResponse)
+    } catch (e: Exception) {
+        onFailure(ApiFailure(e.message))
+    }
+}, onFailure)

app/src/main/java/eu/m724/vastapp/vastai/api/StringUrlRequestCallback.kt

@@ -0,0 +1,51 @@
+package eu.m724.vastapp.vastai.api
+
+import eu.m724.vastapp.vastai.ApiFailure
+import org.chromium.net.CronetException
+import org.chromium.net.UrlRequest
+import org.chromium.net.UrlResponseInfo
+import java.nio.ByteBuffer
+import java.nio.charset.CodingErrorAction
+
+open class StringUrlRequestCallback(
+    val onSuccess: (String) -> Unit,
+    val onFailure: (ApiFailure) -> Unit
+) : UrlRequest.Callback() {
+    protected val stringResponse = StringBuilder()
+
+    override fun onRedirectReceived(
+        request: UrlRequest?,
+        info: UrlResponseInfo?,
+        newLocationUrl: String?
+    ) {
+        request?.followRedirect()
+    }
+
+    override fun onResponseStarted(request: UrlRequest?, info: UrlResponseInfo?) {
+        request?.read(ByteBuffer.allocateDirect(102400))
+    }
+
+    override fun onReadCompleted(
+        request: UrlRequest?,
+        info: UrlResponseInfo?,
+        byteBuffer: ByteBuffer?
+    ) {
+        byteBuffer?.clear()
+        request?.read(byteBuffer)
+
+        stringResponse.append(Charsets.UTF_8.newDecoder().onUnmappableCharacter(CodingErrorAction.IGNORE).decode(byteBuffer))
+    }
+
+    override fun onSucceeded(request: UrlRequest?, info: UrlResponseInfo?) {
+        if (info?.httpStatusCode == 200) {
+            onSuccess(stringResponse.toString())
+        } else {
+            onFailure(ApiFailure("${info?.httpStatusCode} ${info?.httpStatusText}"))
+            println("API error: ${stringResponse.toString()}")
+        }
+    }
+
+    override fun onFailed(request: UrlRequest?, info: UrlResponseInfo?, error: CronetException?) {
+        onFailure(ApiFailure("Network error: ${error?.message ?: "Unknown"}"))
+    }
+}

app/src/main/java/eu/m724/vastapp/vastai/api/upload/JsonUploadDataProvider.kt

@@ -0,0 +1,9 @@
+package eu.m724.vastapp.vastai.api.upload
+
+import org.json.JSONObject
+
+class JsonUploadDataProvider(
+    jsonObject: JSONObject
+) : StringUploadDataProvider(
+    jsonObject.toString()
+)

app/src/main/java/eu/m724/vastapp/vastai/api/upload/StringUploadDataProvider.kt

@@ -0,0 +1,25 @@
+package eu.m724.vastapp.vastai.api.upload
+
+import org.chromium.net.UploadDataProvider
+import org.chromium.net.UploadDataSink
+import java.nio.ByteBuffer
+import java.nio.charset.StandardCharsets
+
+open class StringUploadDataProvider(
+    val data: String
+) : UploadDataProvider() {
+    override fun getLength(): Long {
+        return data.length.toLong()
+    }
+
+    override fun read(uploadDataSink: UploadDataSink?, byteBuffer: ByteBuffer?) {
+        byteBuffer!!.put(data.toByteArray(StandardCharsets.UTF_8))
+        uploadDataSink!!.onReadSucceeded(false)
+    }
+
+    override fun rewind(uploadDataSink: UploadDataSink?) {
+        // TODO look into it
+        uploadDataSink!!.onRewindSucceeded()
+    }
+
+}

app/src/main/res/drawable/baseline_delete_24.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M6,19c0,1.1 0.9,2 2,2h8c1.1,0 2,-0.9 2,-2V7H6v12zM19,4h-3.5l-1,-1h-5l-1,1H5v2h14V4z"/>
+    
+</vector>

app/src/main/res/drawable/baseline_play_arrow_24.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M8,5v14l11,-7z"/>
+    
+</vector>

app/src/main/res/drawable/baseline_stop_24.xml

@@ -0,0 +1,5 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android" android:height="24dp" android:tint="#000000" android:viewportHeight="24" android:viewportWidth="24" android:width="24dp">
+      
+    <path android:fillColor="@android:color/white" android:pathData="M6,6h12v12H6z"/>
+    
+</vector>