Implement initial audiobook UX (some of which is a bit of a WIP).

- Renamed various components and moved them to src/components.
- Renamed KOTO_PREFERRED_MODEL* to KOTO_PREFERRED_PLAYLIST*
- Renamed koto string utility functions to always be prefixed with koto_utils_string_ for consistency.
- Added configuration options for show / hiding various album information, as well as preferred sort type.
- Changed db schema to reflect various metadata changes (sorry).
- Implemented genre, narrator, year aggregation from KotoTrack to KotoAlbum for use in KotoAlbumInfo and audiobooks.
- Rearchitected our playlist functionality for KotoAlbums to always have an inner KotoPlaylist that is used.
- Added various getters / setters for new koto_album functionality.
- Implement aggregation of KotoAlbum pointer aggregation in the KotoArtist as a GQueue and GListStore instead of GList so we can get all the albums associated with an artist and use the GListStore for the audiobook view.
- Implement some initial album sorting in Artists (more work to do on this front).
- Many improvements to file indexing logic for CD and position detection, various new koto_track_helpers.
- Add new logic for knowing when to hide playlists given we generate them for each Album now.
- Fix missing updates of KotoPlaylist in KotoNav.
- Added playback position to KotoPlayerbar, renamed bar refs to self.
- New Playlist state saving.
- Updated track ticking logic for track in KotoPlaybackEngine.
- Fixed playback position detection in our KotoPlaybackEngine by swapping from GST_FORMAT_DEFAULT to GST_FORMAT_TIME.
- Changed our get_progress to divide by GST_SECOND.
- Fixed missing type checks in various KotoPlaybackEngine functions.

Fixes #13. Fixes #14. Fixes #15.

src/indexer/library.c

@@ -245,7 +245,7 @@ gchar * koto_library_get_relative_path_to_file(
 	}
 
 	gchar * appended_slash_to_library_path = g_str_has_suffix(self->path, G_DIR_SEPARATOR_S) ? g_strdup(self->path) : g_strdup_printf("%s%s", g_strdup(self->path), G_DIR_SEPARATOR_S);
-	gchar * cleaned_path = koto_utils_replace_string_all(full_path, appended_slash_to_library_path, ""); // Replace the full path
+	gchar * cleaned_path = koto_utils_string_replace_all(full_path, appended_slash_to_library_path, ""); // Replace the full path
 
 	g_free(appended_slash_to_library_path);
 	return cleaned_path;
@@ -299,11 +299,11 @@ void koto_library_set_name(
 		return;
 	}
 
-	if (!koto_utils_is_string_valid(library_name)) { // Not a string
+	if (!koto_utils_string_is_valid(library_name)) { // Not a string
 		return;
 	}
 
-	if (koto_utils_is_string_valid(self->name)) { // Name already set
+	if (koto_utils_string_is_valid(self->name)) { // Name already set
 		g_free(self->name); // Free the existing value
 	}
 
@@ -319,15 +319,15 @@ void koto_library_set_path(
 		return;
 	}
 
-	if (!koto_utils_is_string_valid(path)) { // Not a valid string
+	if (!koto_utils_string_is_valid(path)) { // Not a valid string
 		return;
 	}
 
-	if (koto_utils_is_string_valid(self->path)) {
+	if (koto_utils_string_is_valid(self->path)) {
 		g_free(self->path);
 	}
 
-	self->relative_path = g_path_is_absolute(path) ? koto_utils_replace_string_all(path, self->mount_path, "") : path; // Ensure path is relative to our mount, even if the mount is really our own system partition
+	self->relative_path = g_path_is_absolute(path) ? koto_utils_string_replace_all(path, self->mount_path, "") : path; // Ensure path is relative to our mount, even if the mount is really our own system partition
 	self->path = g_build_path(G_DIR_SEPARATOR_S, self->mount_path, self->relative_path, NULL); // Ensure our path is to whatever the current path of the mount + relative path is
 }
 
@@ -345,7 +345,7 @@ void koto_library_set_storage_uuid(
 		g_free(self->mount_path);
 	}
 
-	if (!koto_utils_is_string_valid(storage_uuid)) { // Not a valid string, which actually is allowed for built-ins
+	if (!koto_utils_string_is_valid(storage_uuid)) { // Not a valid string, which actually is allowed for built-ins
 		self->mount = NULL;
 		self->mount_path = g_strdup_printf("%s%s", g_get_home_dir(), G_DIR_SEPARATOR_S); // Set mount path to user's home directory
 		self->storage_uuid = NULL;
@@ -378,11 +378,11 @@ gchar * koto_library_to_config_string(KotoLibrary * self) {
 
 	g_strv_builder_add(lib_builder, g_strdup_printf("\tdirectory=\"%s\"", self->relative_path)); // Add the directory
 
-	if (koto_utils_is_string_valid(self->name)) { // Have a library name
+	if (koto_utils_string_is_valid(self->name)) { // Have a library name
 		g_strv_builder_add(lib_builder, g_strdup_printf("\tname=\"%s\"", self->name)); // Add the name
 	}
 
-	if (koto_utils_is_string_valid(self->storage_uuid)) { // Have a storage UUID (not applicable to built-ins)
+	if (koto_utils_string_is_valid(self->storage_uuid)) { // Have a storage UUID (not applicable to built-ins)
 		g_strv_builder_add(lib_builder, g_strdup_printf("\tstorage_uuid=\"%s\"", self->storage_uuid)); // Add the storage UUID
 	}