Initial commit

[jamendo] / src / jamendo_api.c

diff --git a/src/jamendo_api.c b/src/jamendo_api.c
new file mode 100644 (file)
index 0000000..10e339e
--- /dev/null
+++ b/src/jamendo_api.c
@@ -0,0 +1,96 @@
+/*
+ * jamendo_api.c
+ *
+ *  Created on: 2009-10-05
+ *      Author: marcin
+ */
+
+#include "jamendo_api.h"
+#include "http_utils.h"
+
+static const gchar * const GET_API = "http://api.jamendo.com/get2/";
+
+typedef gpointer (*NodeParseFunc)(xmlNode*);
+static GList* xml_query(gchar* query, NodeParseFunc node_parse_func);
+
+GList* jamendo_get_popular_albums_week() {
+       return xml_query("id+name+image+rating+artist_name/album/xml/?n=25&order=ratingweek_desc", (NodeParseFunc)album_new_from_xml);
+}
+
+GList* jamendo_search_for_albums_by_tag(const gchar* tag) {
+       gchar* query = g_strdup_printf("id+name+image+rating+artist_name/album/xml/?n=50&order=ratingweek_desc&tag_idstr=%s",tag);
+       GList* album_list = xml_query(query, (NodeParseFunc)album_new_from_xml);
+       g_free(query);
+       return album_list;
+}
+
+GList* jamendo_search_for_albums_by_artist(const gchar* artist_name) {
+       gchar* query = g_strdup_printf("id+name+image+rating+artist_name/album/xml/?n=50&order=ratingweek_desc&searchquery=%s",artist_name);
+       GList* album_list = xml_query(query, (NodeParseFunc)album_new_from_xml);
+       g_free(query);
+       return album_list;
+}
+
+GList* jamendo_search_for_user_starred_albums(const gchar* user) {
+       gchar* query = g_strdup_printf("id+name+image+rating+artist_name/album/xml/album_user_starred/?user_idstr=%s&n=all&order=rating_desc",user);
+       GList* album_list = xml_query(query, (NodeParseFunc)album_new_from_xml);
+       g_free(query);
+       return album_list;
+}
+
+GList* jamendo_search_for_user_playlist(const gchar* user) {
+       //TODO: implement playlists support
+       return NULL;
+}
+
+GList* jamendo_get_album_tracks(Album* album) {
+       gchar* query = g_strdup_printf("id+name+duration+rating+stream+artist_name/track/xml/track_album+album_artist/?album_id=%d",album->id);
+       GList *track_list = xml_query(query, (NodeParseFunc)track_new_from_xml);
+       g_free(query);
+       return track_list;
+}
+
+GList* jamendo_get_top_100() {
+       gchar* query = "id+name+duration+rating+stream+album_name+artist_name/track/xml/track_album+album_artist/?n=100&order=ratingweek_desc";
+       GList *track_list = xml_query(query, (NodeParseFunc)track_new_from_xml);
+       return track_list;
+}
+
+GList* jamendo_get_radios() {
+       gchar* query = "id+idstr+image/radio/xml/?id=4+5+6+7+8+9";
+       GList *radio_list = xml_query(query, (NodeParseFunc)radio_new_from_xml);
+       return radio_list;
+}
+
+GList* jamendo_get_radio_playlist(Radio* radio) {
+       gchar* query = g_strdup_printf("id+name+duration+rating+stream+artist_name/track/xml/radio_track_inradioplaylist+track_album+album_artist/?radio_id=%d&nshuffle=1&n=%d",radio->id,100);
+       GList *track_list = xml_query(query, (NodeParseFunc)track_new_from_xml);
+       g_free(query);
+       return track_list;
+}
+
+/*
+ * Helper function for XML query parsing
+ */
+static GList* xml_query(gchar* query, NodeParseFunc node_parse_func) {
+       GList *parsed_list = NULL;
+
+       gchar* uri = g_strdup_printf("%s%s", GET_API, query);
+       xmlDocPtr doc = http_get_xml(uri);
+       g_free(uri);
+       if (doc) {
+               xmlNode *root_node = xmlDocGetRootElement(doc);
+               if (root_node->type == XML_ELEMENT_NODE && g_strcmp0((gchar*) root_node->name, "data") == 0) {
+                       xmlNode* child_node;
+                       for (child_node = root_node->children; child_node; child_node = child_node->next) {
+                               gpointer parsed_object = node_parse_func(child_node);
+                               if (parsed_object) {
+                                       parsed_list = g_list_append(parsed_list, parsed_object);
+                               }
+                       }
+               }
+       }
+
+       xmlFreeDoc(doc);
+       return parsed_list;
+}