Fix nested directories navigation and decode file contents

app/src/main/java/fr/uca/iut/clfreville2/teaiswarm/fragment/RepositoryDetailsFragment.kt

@@ -14,6 +14,7 @@ import fr.uca.iut.clfreville2.teaiswarm.model.FileType
 import fr.uca.iut.clfreville2.teaiswarm.model.RepositoryIdentifier
 import fr.uca.iut.clfreville2.teaiswarm.model.VersionedFile
 import kotlinx.coroutines.launch
+import kotlin.io.path.Path
 
 const val FILE_PATH = "file_path"
 
@@ -59,7 +60,7 @@ class RepositoryDetailsFragment : Fragment(R.layout.repository_details) {
         val bundle = bundleOf(
             REPOSITORY_OWNER to currentRepositoryOwner,
             REPOSITORY_NAME to currentRepositoryName,
-            FILE_PATH to (currentFilePath ?: "") + file.name
+            FILE_PATH to Path(currentFilePath ?: "", file.name).toString()
         )
         when (file.type) {
             FileType.FILE -> {

app/src/main/java/fr/uca/iut/clfreville2/teaiswarm/model/FileContent.kt

@@ -1,3 +1,14 @@
 package fr.uca.iut.clfreville2.teaiswarm.model
 
-data class FileContent(val type: FileType, val size: Int, val content: String, val last_commit_sha: String)
+import android.util.Base64
+import com.squareup.moshi.Json
+
+data class FileContent(
+    val type: FileType,
+    val size: Int,
+    @Json(name = "content") val contentBase64: String,
+    val last_commit_sha: String
+) {
+    val content: String
+        get() = String(Base64.decode(contentBase64, Base64.DEFAULT))
+}