feat: basic music backend

proto/library.proto

@@ -0,0 +1,20 @@
+syntax = "proto3";
+
+import 'google/protobuf/empty.proto';
+
+package library;
+
+service Library {
+	rpc ListTracks(google.protobuf.Empty) returns (TrackList);
+}
+
+message TrackList {
+	repeated Track tracks = 1;
+}
+
+message Track {
+	string hash = 1;
+	string name = 2;
+	string artist_name = 3;
+	uint64 artist_id = 4;
+}

proto/player.proto

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+syntax = "proto3";
+
+import 'google/protobuf/empty.proto';
+
+package player;
+
+service Player {
+	rpc PlayTrack(PlayTrackRequest) returns (PlayTrackResponse);
+	rpc ResumeTrack(google.protobuf.Empty) returns (google.protobuf.Empty);
+	rpc PauseTrack(google.protobuf.Empty) returns (google.protobuf.Empty);
+}
+
+message PlayTrackRequest {
+	string hash = 1;
+}
+
+message PlayTrackResponse {
+}

proto/settings.proto

@@ -0,0 +1,43 @@
+syntax = "proto3";
+
+import 'google/protobuf/empty.proto';
+
+package settings;
+
+service Settings {
+	rpc ListPaths(google.protobuf.Empty) returns (SettingsData);
+	rpc AddPath(AddPathRequest) returns (AddPathResponse);
+	rpc DeletePath(DeletePathRequest) returns (DeletePathResponse);
+	rpc RefreshPath(RefreshPathRequest) returns (RefreshPathResponse);
+}
+
+message SettingsData {
+	repeated LibraryPath library_paths = 1;
+}
+
+message LibraryPath {
+	uint64 id = 1;
+	string path = 2;
+}
+
+message AddPathRequest {
+	string path = 1;
+}
+
+message AddPathResponse {
+	uint64 id = 1;
+}
+
+message DeletePathRequest {
+	uint64 id = 1;
+}
+
+message DeletePathResponse {
+}
+
+message RefreshPathRequest {
+	uint64 id = 1;
+}
+
+message RefreshPathResponse {
+}