Play position in stuff like podcasts can now be permanently persisted.

include/playlist.h

@@ -4,9 +4,16 @@
 #include <ArduinoJson.h>
 #include "http_client_wrapper.h"
 
+enum PlaylistPersistence {
+	PERSIST_NONE,
+	PERSIST_TEMPORARY,
+	PERSIST_PERMANENTLY
+};
+
 struct PlaylistEntry {
 	String filename;
 	String title;
+	String id;
 	
 	bool operator<(PlaylistEntry p) { return title < p.title; }
 };
@@ -19,12 +26,14 @@ private:
 	bool _shuffled = false;
 	std::vector<PlaylistEntry> _files;
 	String _title = "";
+	String _path;
 	void _add_path(String path);
 	void _examine_http_url(String url);
 	void _parse_rss(HTTPClientWrapper* http);
 	void _parse_m3u(HTTPClientWrapper* http);
 	void _parse_pls(HTTPClientWrapper* http);
 public:
+	PlaylistPersistence persistence = PERSIST_TEMPORARY;
 	Playlist(String path);
 	void start();
 	uint16_t get_file_count();
@@ -34,9 +43,12 @@ public:
 	bool track_prev();
 	void track_restart();
 	bool set_track(uint8_t track);
+	void set_track_by_id(String id);
 	void reset();
+	String path();
 	bool is_empty();
 	bool get_current_file(String* dst);
+	String get_current_track_id();
 	uint32_t get_position();
 	void set_position(uint32_t p);
 	void shuffle(uint8_t random_offset=0);

include/playlist_manager.h

@@ -20,4 +20,5 @@ public:
 	String json();
 	bool add_mapping(String id, String folder);
 	String create_mapping_txt();
+	void persist(Playlist* p);
 };