add download resume support in ui

desktop/app/src/main/kotlin/com/abdownloadmanager/desktop/pages/singleDownloadPage/ShowDownloadDialogs.kt

@@ -55,7 +55,7 @@ fun ShowDownloadDialogs(component: DownloadDialogManager) {
         val onRequestClose = {
             component.closeDownloadDialog(singleDownloadComponent.downloadId)
         }
-        val defaultHeight = 270f
+        val defaultHeight = 290f
         val defaultWidth = 450f
 
         val showPartInfo by singleDownloadComponent.showPartInfo

desktop/app/src/main/kotlin/com/abdownloadmanager/desktop/pages/singleDownloadPage/SingleDownloadPage.kt

@@ -77,7 +77,7 @@ fun SingleDownloadPage(singleDownloadComponent: SingleDownloadComponent) {
                 val tabContentModifier = Modifier
 
                 Box(
-                    Modifier.height(130.dp)
+                    Modifier.height(150.dp)
                         .clip(RoundedCornerShape(bottomStart = 6.dp, bottomEnd = 6.dp))
                         .background(myColors.background)
                         .verticalScroll(scrollState)
@@ -543,6 +543,7 @@ private fun ToggleButton(
     itemState: ProcessingDownloadItemState,
     toggle: () -> Unit,
 ) {
+    val isResumeSupported = itemState.supportResume == true
     val (icon, text) = when (itemState.status) {
         is DownloadJobStatus.CanBeResumed -> {
             MyIcons.resume to "Resume"
@@ -560,6 +561,15 @@ private fun ToggleButton(
         },
         icon = icon,
         text = text,
+        color = if (isResumeSupported){
+            LocalContentColor.current
+        }else{
+            if (itemState.status is DownloadJobStatus.IsActive){
+                myColors.error
+            }else{
+                LocalContentColor.current
+            }
+        },
     )
 }
 

desktop/app/src/main/kotlin/com/abdownloadmanager/desktop/pages/singleDownloadPage/SingleDownloadPageComponent.kt

@@ -58,6 +58,11 @@ class SingleDownloadComponent(
                         add("Remaining Time" to (it.remainingTime?.let { remainingTime ->
                             convertTimeRemainingToHumanReadable(remainingTime, TimeNames.ShortNames)
                         }.orEmpty()))
+                        add("Resume Support" to when(it.supportResume){
+                            true->"Yes"
+                            false->"No"
+                            null->"Unknown"
+                        })
                     }
                 }
             }

downloader/core/src/main/kotlin/ir/amirab/downloader/downloaditem/DownloadJob.kt

@@ -46,7 +46,8 @@ class DownloadJob(
     private var booted = false
 
 
-    var supportsConcurrent: Boolean = false
+    var supportsConcurrent: Boolean? = null
+        private set
 
     private val _isDownloadActive = MutableStateFlow(false)
     val isDownloadActive = _isDownloadActive.asStateFlow()
@@ -56,6 +57,10 @@ class DownloadJob(
             val outFile = downloadManager.calculateOutputFile(downloadItem)
             destination = SimpleDownloadDestination(outFile, downloadManager.diskStat)
             loadPartState()
+            supportsConcurrent = when(getParts().size){
+                in 2..Int.MAX_VALUE -> true
+                else -> null
+            }
             applySpeedLimit()
             booted = true
 //            thisLogger().info("job for dl_$id booted")
@@ -261,7 +266,7 @@ class DownloadJob(
                 listOf(Part(0, null, 0))
             )
         } else {
-            if (supportsConcurrent){
+            if (supportsConcurrent==true){
                 //split parts
                 setParts(splitToRange(
                     minPartSize = downloadManager.settings.minPartSize,
@@ -313,7 +318,7 @@ class DownloadJob(
                         val inactivePart =
                                 kotlin.runCatching { mutableInactivePartDownloaderList.removeAt(0) }.getOrNull()
                         if (inactivePart != null) return inactivePart
-                        if (supportsConcurrent && downloadManager.settings.dynamicPartCreationMode) {
+                        if (supportsConcurrent==true && downloadManager.settings.dynamicPartCreationMode) {
                             synchronized(partSplitLock) {
                                 val candidates = getPartDownloaderList()
                                     .toList()

downloader/monitor/src/main/kotlin/ir/amirab/downloader/monitor/ProcessingDownloadItemState.kt

@@ -20,6 +20,7 @@ data class ProcessingDownloadItemState(
     val status: DownloadJobStatus,
     val speed: Long,
     val parts: List<UiPart>,
+    val supportResume: Boolean?,
 ) : IDownloadItemState {
     val progress = parts.sumOf {
         it.howMuchProceed
@@ -62,6 +63,7 @@ data class ProcessingDownloadItemState(
                     UiPart.fromPart(it)
                 },
                 speed = speed,
+                supportResume = downloadJob.supportsConcurrent,
                 downloadLink = downloadItem.link
             )
         }
@@ -82,7 +84,8 @@ data class ProcessingDownloadItemState(
                 saveLocation = downloadItem.name,
                 parts = emptyList(),
                 speed = 0,
-                downloadLink = downloadItem.link
+                downloadLink = downloadItem.link,
+                supportResume = null,
             )
         }
     }