Support seed stations

Fixes #165

3 files changed, 38 insertions, 4 deletions

diff --git a/src/libpiano/piano.c b/src/libpiano/piano.c
index d6071f2..9a7e8d3 100644
--- a/src/libpiano/piano.c
+++ b/src/libpiano/piano.c
@@ -91,6 +91,7 @@ void PianoDestroySearchResult (PianoSearchResult_t *searchResult) {
 void PianoDestroyStation (PianoStation_t *station) {
 	free (station->name);
 	free (station->id);
+	free (station->seedId);
 	memset (station, 0, sizeof (station));
 }
 
@@ -141,6 +142,7 @@ void PianoDestroyStationInfo (PianoStationInfo_t *info) {
 	PianoDestroyPlaylist (info->feedback);
 	PianoDestroyPlaylist (info->songSeeds);
 	PianoDestroyArtists (info->artistSeeds);
+	PianoDestroyStations (info->stationSeeds);
 }
 
 /*	destroy genre linked list
@@ -769,12 +771,15 @@ PianoReturn_t PianoRequest (PianoHandle_t *ph, PianoRequest_t *req,
 			char *seedId = NULL;
 
 			assert (reqData != NULL);
-			assert (reqData->song != NULL || reqData->artist != NULL);
+			assert (reqData->song != NULL || reqData->artist != NULL ||
+					reqData->station != NULL);
 
 			if (reqData->song != NULL) {
 				seedId = reqData->song->seedId;
 			} else if (reqData->artist != NULL) {
 				seedId = reqData->artist->seedId;
+			} else if (reqData->station != NULL) {
+				seedId = reqData->station->seedId;
 			}
 
 			assert (seedId != NULL);
diff --git a/src/libpiano/piano.h b/src/libpiano/piano.h
index 7b692c6..b692a47 100644
--- a/src/libpiano/piano.h
+++ b/src/libpiano/piano.h
@@ -43,6 +43,7 @@ typedef struct PianoStation {
 	char useQuickMix; /* station will be included in quickmix */
 	char *name;
 	char *id;
+	char *seedId;
 	struct PianoStation *next;
 } PianoStation_t;
 
@@ -119,6 +120,7 @@ typedef struct PianoSearchResult {
 typedef struct {
 	PianoSong_t *songSeeds;
 	PianoArtist_t *artistSeeds;
+	PianoStation_t *stationSeeds;
 	PianoSong_t *feedback;
 } PianoStationInfo_t;
 
@@ -230,6 +232,7 @@ typedef struct {
 typedef struct {
 	PianoSong_t *song;
 	PianoArtist_t *artist;
+	PianoStation_t *station;
 } PianoRequestDataDeleteSeed_t;
 
 typedef enum {
diff --git a/src/libpiano/xml.c b/src/libpiano/xml.c
index 7f21f8d..1dd2a24 100644
--- a/src/libpiano/xml.c
+++ b/src/libpiano/xml.c
@@ -831,6 +831,7 @@ struct PianoXmlParseSeedBag {
 	char *seedId;
 	PianoSong_t *song;
 	PianoArtist_t *artist;
+	PianoStation_t *station;
 };
 
 /*	parse seed struct
@@ -853,6 +854,14 @@ static void PianoXmlParseSeedCb (const char *key, const ezxml_t value,
 
 		PianoXmlStructParser (ezxml_child (value, "struct"),
 				PianoXmlParseSearchArtistCb, bag->artist);
+	} else if (strcmp ("nonGenomeStation", key) == 0) {
+		/* genre stations are "non genome" station seeds */
+		if ((bag->station = calloc (1, sizeof (*bag->station))) == NULL) {
+			return;
+		}
+
+		PianoXmlStructParser (ezxml_child (value, "struct"),
+				PianoXmlParseStationsCb, bag->station);
 	} else if (strcmp ("seedId", key) == 0) {
 		char *valueStr = PianoXmlGetNodeText (value);
 		bag->seedId = strdup (valueStr);
@@ -875,10 +884,15 @@ static void PianoXmlParseGetStationInfoCb (const char *key, const ezxml_t value,
 			PianoXmlStructParser (ezxml_child (seedNode, "struct"),
 					PianoXmlParseSeedCb, &bag);
 
-			/* FIXME: use if-clause */
-			assert (bag.seedId != NULL);
-			assert (bag.song != NULL || bag.artist != NULL);
+			assert (bag.song != NULL || bag.artist != NULL ||
+					bag.station != NULL);
+
+			if (bag.seedId == NULL) {
+				/* seeds without id are useless */
+				continue;
+			}
 
+			/* FIXME: copy&waste */
 			if (bag.song != NULL) {
 				bag.song->seedId = bag.seedId;
 
@@ -903,6 +917,18 @@ static void PianoXmlParseGetStationInfoCb (const char *key, const ezxml_t value,
 					}
 					curSong->next = bag.artist;
 				}
+			} else if (bag.station != NULL) {
+				bag.station->seedId = bag.seedId;
+
+				if (info->stationSeeds == NULL) {
+					info->stationSeeds = bag.station;
+				} else {
+					PianoStation_t *curStation = info->stationSeeds;
+					while (curStation->next != NULL) {
+						curStation = curStation->next;
+					}
+					curStation->next = bag.station;
+				}
 			} else {
 				free (bag.seedId);
 			}