From 5216c7d359c5c8975d4883ce7cd80848e0e1a4d2 Mon Sep 17 00:00:00 2001
From: Elias Projahn <johrpan@gmail.com>
Date: Sun, 19 Apr 2020 18:37:16 +0200
Subject: [PATCH] Store URI within tracks

---
 .../kotlin/de/johrpan/musicus/MainActivity.kt    |  5 +++++
 lib/music_library.dart                           | 12 +++++++++++-
 lib/platform.dart                                | 16 ++++++++++++++++
 3 files changed, 32 insertions(+), 1 deletion(-)

diff --git a/android/app/src/main/kotlin/de/johrpan/musicus/MainActivity.kt b/android/app/src/main/kotlin/de/johrpan/musicus/MainActivity.kt
index 153be69..9427258 100644
--- a/android/app/src/main/kotlin/de/johrpan/musicus/MainActivity.kt
+++ b/android/app/src/main/kotlin/de/johrpan/musicus/MainActivity.kt
@@ -44,6 +44,11 @@ class MainActivity : FlutterActivity() {
                 val treeUri = Uri.parse(call.argument<String>("treeUri"))
                 val id = call.argument<String>("id")!!
                 result.success(readFile(treeUri, id))
+            } else if (call.method == "getUriByName") {
+                val treeUri = Uri.parse(call.argument<String>("treeUri"))
+                val parentId = call.argument<String>("parentId")!!
+                val fileName = call.argument<String>("fileName")!!
+                result.success(getUriByName(treeUri, parentId, fileName).toString())
             } else if (call.method == "readFileByName") {
                 val treeUri = Uri.parse(call.argument<String>("treeUri"))
                 val parentId = call.argument<String>("parentId")!!
diff --git a/lib/music_library.dart b/lib/music_library.dart
index c03be8d..9365744 100644
--- a/lib/music_library.dart
+++ b/lib/music_library.dart
@@ -24,6 +24,8 @@ class Track {
   /// Which work parts of the recorded work are contained in this track.
   final List<int> partIds;
 
+  String uri;
+
   Track({
     this.fileName,
     this.index,
@@ -110,6 +112,10 @@ class MusicLibrary {
           final content = await Platform.readFile(treeUri, child.id);
           final musicusFile = MusicusFile.fromJson(jsonDecode(content));
           for (final track in musicusFile.tracks) {
+            final uri =
+                await Platform.getUriByName(treeUri, parentId, track.fileName);
+            track.uri = uri;
+
             if (tracks.containsKey(track.recordingId)) {
               tracks[track.recordingId].add(track);
             } else {
@@ -124,7 +130,7 @@ class MusicLibrary {
   }
 
   /// Add a list of new tracks to the music library.
-  /// 
+  ///
   /// They are stored in this instance and on disk in the directory denoted by
   /// [parentId].
   Future<void> addTracks(String parentId, List<Track> newTracks) async {
@@ -140,6 +146,10 @@ class MusicLibrary {
     }
 
     for (final track in newTracks) {
+      final uri =
+          await Platform.getUriByName(treeUri, parentId, track.fileName);
+      track.uri = uri;
+
       musicusFile.tracks.add(track);
 
       if (tracks.containsKey(track.recordingId)) {
diff --git a/lib/platform.dart b/lib/platform.dart
index 3284621..13dfba0 100644
--- a/lib/platform.dart
+++ b/lib/platform.dart
@@ -62,6 +62,22 @@ class Platform {
     );
   }
 
+  /// Get document URI by file name
+  ///
+  /// [treeId] is the base URI from the SAF, [parentId] is the document ID of
+  /// the parent directory.
+  static Future<String> getUriByName(
+      String treeUri, String parentId, String fileName) async {
+    return await _platform.invokeMethod(
+      'getUriByName',
+      {
+        'treeUri': treeUri,
+        'parentId': parentId,
+        'fileName': fileName,
+      },
+    );
+  }
+
   /// Read contents of file by name
   ///
   /// [treeId] is the base URI from the SAF, [parentId] is the document ID of