✨ Implement song handling in ResultCellController, finally this becom…

…es a usable app

This commit introduces the method handleRecord in ResultCellController, which writes the chosen song to csv and reads the next song title from the input file. If no more songs are present, the function logs this occurrence. The commit also updated the RealResultGridCell and ResultGridCell functions in ResultGridCell.kt to use the newly introduced handleRecord method. The purpose of these changes is to implement functionality that allows the user to process song search results one by one.

songfinder-app/src/main/kotlin/mikufan/cx/songfinder/backend/controller/mainpage/ResultCellController.kt

@@ -1,11 +1,40 @@
 package mikufan.cx.songfinder.backend.controller.mainpage
 
+import mikufan.cx.inlinelogging.KInlineLogging
+import mikufan.cx.songfinder.backend.model.SongSearchResult
+import mikufan.cx.songfinder.backend.service.InputFileLineReader
+import mikufan.cx.songfinder.backend.service.OutputCsvLineWriter
+import mikufan.cx.songfinder.backend.statemodel.ProgressStateModel
+import mikufan.cx.songfinder.backend.statemodel.SearchInputStateModel
+import mikufan.cx.songfinder.backend.statemodel.SearchOptionsStateModel
+import mikufan.cx.songfinder.backend.statemodel.SearchRegexOption
 import org.springframework.stereotype.Controller
 
 @Controller
 class ResultCellController(
-
+  private val csvLineWriter: OutputCsvLineWriter,
+  private val progressStateModel: ProgressStateModel,
+  private val inputFileLineReader: InputFileLineReader,
+  private val inputStateModel: SearchInputStateModel,
+  private val searchOptionsStateModel: SearchOptionsStateModel,
+  private val songSearchIntermediateController: SongSearchIntermediateController,
 ) {
 
-//  suspend fun
-}
+  suspend fun handleRecord(chosenSong: SongSearchResult) {
+    // First, write the chosen song to csv
+    csvLineWriter.writeSongId(chosenSong.id.toULong())
+    progressStateModel.increment()
+
+    // Then, read the next song title from the input file. If no more song, then we are done
+    val nextSongTitle = inputFileLineReader.readNext()
+    if (nextSongTitle == null) {
+      log.info { "No more song to handle, the app should display a congratulation screen soon" }
+    } else {
+      inputStateModel.update(nextSongTitle)
+      searchOptionsStateModel.searchRegexOptionState.value = SearchRegexOption.Contains
+      songSearchIntermediateController.triggerSearch(0)
+    }
+  }
+}
+
+private val log = KInlineLogging.logger()

songfinder-app/src/main/kotlin/mikufan/cx/songfinder/ui/component/main/MainScreen.kt

@@ -90,7 +90,7 @@ fun PreviewMainScreen() {
             )
           )
         ) {
-          RealResultGridCell(it)
+          RealResultGridCell(it, ResultCellCallbacks({}, { "" }))
         }
       }
     }

songfinder-app/src/main/kotlin/mikufan/cx/songfinder/ui/component/main/ResultGridCell.kt

@@ -31,21 +31,34 @@ import compose.icons.simpleicons.Niconico
 import compose.icons.simpleicons.Soundcloud
 import compose.icons.simpleicons.Youtube
 import kotlinx.coroutines.launch
+import mikufan.cx.songfinder.backend.controller.mainpage.ResultCellController
 import mikufan.cx.songfinder.backend.db.entity.PvService
 import mikufan.cx.songfinder.backend.model.PVInfo
 import mikufan.cx.songfinder.backend.model.SongSearchResult
+import mikufan.cx.songfinder.getSpringBean
 import mikufan.cx.songfinder.ui.common.TooltipAreaWithCard
 import mikufan.cx.songfinder.ui.theme.spacing
 import java.time.format.DateTimeFormatter
 
 @OptIn(ExperimentalFoundationApi::class)
 @Composable
-fun LazyGridItemScope.ResultGridCell(result: SongSearchResult) {
-  RealResultGridCell(result, Modifier.animateItemPlacement())
+fun LazyGridItemScope.ResultGridCell(
+  result: SongSearchResult,
+  controller: ResultCellController = getSpringBean(),
+) {
+  val callbacks = ResultCellCallbacks(
+    onCardClicked = { controller.handleRecord(it) },
+    provideThumbnailUrl = { TODO() }
+  )
+  RealResultGridCell(result, callbacks, Modifier.animateItemPlacement())
 }
 
 @Composable
-fun LazyGridItemScope.RealResultGridCell(result: SongSearchResult, modifier: Modifier = Modifier) {
+fun LazyGridItemScope.RealResultGridCell(
+  result: SongSearchResult,
+  callbacks: ResultCellCallbacks,
+  modifier: Modifier = Modifier
+) {
   val filteredPvs = result.pvs.filter {
     it.pvService in listOf(
       PvService.Youtube,
@@ -54,15 +67,19 @@ fun LazyGridItemScope.RealResultGridCell(result: SongSearchResult, modifier: Mod
       PvService.Bilibili
     )
   }
-  MusicCardTemplate({}, modifier) {
-    ThumbnailImage(filteredPvs)
+  MusicCardTemplate(onCardClicked = { callbacks.onCardClicked(result) }, modifier) {
+    LazyThumbnailImage(result, filteredPvs)
     MusicInfo(result, filteredPvs)
   }
 }
 
 @Composable
-fun ThumbnailImage(pvs: List<PVInfo>) {
-  //TODO: use the first ever available PV's thumbnail, if no PVs, use image not found. If no available PVs, use
+fun LazyThumbnailImage(
+  result: SongSearchResult,
+  pvs: List<PVInfo>
+) {
+  //TODO: use the first ever available PV's thumbnail, if no PVs, use image not found.
+  // If exceptions (typically no available PVs), use image failed to load
   Image(
     painter = painterResource("image/image-not-found-icon.svg"),
     contentDescription = "Thumbnail",
@@ -173,6 +190,11 @@ private fun PvRows(pvs: List<PVInfo>) {
 
 /* --- Utils ---*/
 
+data class ResultCellCallbacks(
+  val onCardClicked: suspend (SongSearchResult) -> Unit,
+  val provideThumbnailUrl: suspend (SongSearchResult) -> String,
+)
+
 internal fun getArtistString(vocals: List<String>, producers: List<String>): String {
   val vocalString = vocals.joinToString(", ")
   val producerString = producers.joinToString(", ")