Add conf into IO and handle IO throwable

src/main/scala/fetch/Main.scala

@@ -9,16 +9,21 @@ import java.time.{LocalDate, LocalDateTime}
 
 object Main {
   def run: IO[Unit] = {
-    val from = LocalDateTime.of(2023, 4, 23, 20, 0)
-    val to = LocalDateTime.of(2023, 4, 23, 23, 30)
+    val from = LocalDateTime.of(2023, 4, 28, 10, 0)
+    val to = LocalDateTime.of(2023, 4, 28, 13, 30)
     for {
-      fetched <- FetchService.fetchInRange(from, to)
-//      fetched <- FetchService.fetchFromDate(LocalDate.of(2023, 4, 23))
-      (errors, successfulDownloads) = fetched.partitionMap(identity)
-      _ <- IO.println(s"Fetch errors: $errors")
-      saveResults <- successfulDownloads.traverse { case (name, content) => DBService.save(name, content) }
-      _ <- IO.println(s"Save results: $saveResults")
-    } yield ()
+//      fetchResultEither <- FetchService.fetchFromDate(LocalDate.of(2023, 4, 28)).attempt
+      fetchResultEither <- FetchService.fetchInRange(from, to).attempt
+      fetchServiceError = fetchResultEither.left.toOption.map(e => s"FetchServiceError: ${e.getMessage}").toList
+      fetchResult = fetchResultEither.getOrElse(List.empty)
+      (fetchErrors, successDownloads) = fetchResult.partitionMap(identity)
+      saveResults <- successDownloads.traverse { case (name, content) => DBService.save(name, content) }
+      (saveErrors, successSaves) = saveResults.partitionMap(identity)
+      successes = successDownloads.map(s => s"fetched: ${s._1}") ++ successSaves.map(s => s"saved: $s")
+      errors = fetchServiceError ++ fetchErrors.map(e => s"FetchError: ${e.getMessage}") ++ saveErrors.map(e => s"SaveError: ${e.getMessage}")
+      _ <- IO.println(s"errors: $errors")
+      _ <- IO.println(s"successes: $successes")
+    } yield (successes, errors)
   }
 
   def main(args: Array[String]): Unit = {