Merge pull request #197 from chme/mpdstats

[mpd] Implement parts of stats command

src/db.c

@@ -1474,7 +1474,7 @@ db_build_query_count_items(struct query_params *qp, char **q)
   if (qp->filter)
     query = sqlite3_mprintf("SELECT COUNT(*), SUM(song_length) FROM files f WHERE f.disabled = 0 AND %s;", qp->filter);
   else
-    return -1;
+    query = sqlite3_mprintf("SELECT COUNT(*), SUM(song_length) FROM files f WHERE f.disabled = 0;");
 
   if (!query)
     {
@@ -2036,6 +2036,18 @@ db_files_get_count(void)
   return db_get_count("SELECT COUNT(*) FROM files f WHERE f.disabled = 0;");
 }
 
+int
+db_files_get_artist_count(void)
+{
+  return db_get_count("SELECT COUNT(DISTINCT songartistid) FROM files f WHERE f.disabled = 0;");
+}
+
+int
+db_files_get_album_count(void)
+{
+  return db_get_count("SELECT COUNT(DISTINCT songalbumid) FROM files f WHERE f.disabled = 0;");
+}
+
 int
 db_files_get_count_bymatch(char *path)
 {

src/db.h

@@ -416,6 +416,12 @@ db_query_fetch_string_sort(struct query_params *qp, char **string, char **sortst
 int
 db_files_get_count(void);
 
+int
+db_files_get_artist_count(void);
+
+int
+db_files_get_album_count(void);
+
 int
 db_files_get_count_bymatch(char *path);
 

src/mpd.c

@@ -869,7 +869,41 @@ mpd_command_status(struct evbuffer *evbuf, int argc, char **argv, char **errmsg)
 static int
 mpd_command_stats(struct evbuffer *evbuf, int argc, char **argv, char **errmsg)
 {
-  //TODO implement command stats
+  struct query_params qp;
+  struct filecount_info fci;
+  int artists;
+  int albums;
+  int ret;
+
+  memset(&qp, 0, sizeof(struct query_params));
+  qp.type = Q_COUNT_ITEMS;
+
+  ret = db_query_start(&qp);
+  if (ret < 0)
+    {
+      db_query_end(&qp);
+
+      ret = asprintf(errmsg, "Could not start query");
+      if (ret < 0)
+      DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_UNKNOWN;
+    }
+
+  ret = db_query_fetch_count(&qp, &fci);
+  if (ret < 0)
+    {
+      db_query_end(&qp);
+
+      ret = asprintf(errmsg, "Could not fetch query count");
+      if (ret < 0)
+      DPRINTF(E_LOG, L_MPD, "Out of memory\n");
+      return ACK_ERROR_UNKNOWN;
+    }
+
+  artists = db_files_get_artist_count();
+  albums = db_files_get_album_count();
+
+  //TODO [mpd] Implement missing stats attributes (uptime, db_update, playtime)
   evbuffer_add_printf(evbuf,
       "artists: %d\n"
       "albums: %d\n"
@@ -878,11 +912,11 @@ mpd_command_stats(struct evbuffer *evbuf, int argc, char **argv, char **errmsg)
       "db_playtime: %d\n"
       "db_update: %d\n"
       "playtime: %d\n",
-        1,
+        artists,
-        2,
+        albums,
-        3,
+        fci.count,
         4,
-        5,
+        (fci.length / 1000),
         6,
         7);