File manager frontend

src/main/scala/db/DBService.scala

@@ -74,4 +74,12 @@ object DBService {
     val dateStr: String = date.format(formatter)
     readFileNames(dataPath).map(_.filter(_.startsWith(dateStr)).sorted)
   }
+
+  def getFileContent(fileName: String): IO[String] = {
+    val file = new File(dataPath, fileName)
+    val sourceResource = Resource.fromAutoCloseable(IO(Source.fromFile(file)))
+    sourceResource.use(source => IO(source.getLines().mkString("<br/>\n"))).handleErrorWith { error =>
+      IO(println(s"Failed to read file: $error")) *> IO.pure("")
+    }
+  }
 }

src/main/scala/server/Server.scala

@@ -71,6 +71,10 @@ object Server {
         Ok(fileNames.asJson.pretty)
       )
 
+    // http://0.0.0.0:8080/api/show/file/20230423_12:30.csv
+    case GET -> Root / "show" / "file" / (fileName: String) =>
+      DBService.getFileContent(fileName).flatMap(Ok(_))
+
     // http://0.0.0.0:8080/api/help
     case GET -> Root / "help" => {
       val host = "weather-tool.fly.dev"