1 files changed, 57 insertions, 0 deletions
diff --git a/src/main/scala/xyz/driver/core/file/FileSystemStorage.scala b/src/main/scala/xyz/driver/core/file/FileSystemStorage.scala
new file mode 100644
index 0000000..bfe6995
--- /dev/null
+++ b/src/main/scala/xyz/driver/core/file/FileSystemStorage.scala
@@ -0,0 +1,57 @@
+package xyz.driver.core.file
+
+import java.io.File
+import java.nio.file.{Path, Paths}
+
+import xyz.driver.core.{Name, Revision}
+import xyz.driver.core.time.Time
+
+import scala.concurrent.{ExecutionContext, Future}
+import scalaz.{ListT, OptionT}
+
+class FileSystemStorage(executionContext: ExecutionContext) extends FileStorage {
+  implicit private val execution = executionContext
+
+  def upload(localSource: File, destination: Path): Future[Unit] = Future {
+    checkSafeFileName(destination) {
+      val destinationFile = destination.toFile
+
+      if (destinationFile.getParentFile.exists() || destinationFile.getParentFile.mkdirs()) {
+        if (localSource.renameTo(destinationFile)) ()
+        else {
+          throw new Exception(
+            s"Failed to move file from `${localSource.getCanonicalPath}` to `${destinationFile.getCanonicalPath}`")
+        }
+      } else {
+        throw new Exception(s"Failed to create parent directories for file `${destinationFile.getCanonicalPath}`")
+      }
+    }
+  }
+
+  def download(filePath: Path): OptionT[Future, File] =
+    OptionT.optionT(Future {
+      Option(new File(filePath.toString)).filter(file => file.exists() && file.isFile)
+    })
+
+  def delete(filePath: Path): Future[Unit] = Future {
+    val file = new File(filePath.toString)
+    if (file.delete()) ()
+    else {
+      throw new Exception(s"Failed to delete file $file" + (if (!file.exists()) ", file does not exist." else "."))
+    }
+  }
+
+  def list(path: Path): ListT[Future, FileLink] =
+    ListT.listT(Future {
+      val file = new File(path.toString)
+      if (file.isDirectory) {
+        file.listFiles().toList.filter(_.isFile).map { file =>
+          FileLink(Name[File](file.getName),
+                   Paths.get(file.getPath),
+                   Revision[File](file.hashCode.toString),
+                   Time(file.lastModified()),
+                   file.length())
+        }
+      } else List.empty[FileLink]
+    })
+}