universe+tapdb: add group supply to asset stats

tapdb/sqlc/queries/universe.sql

@@ -170,7 +170,7 @@ WITH stats AS (
     FROM mssmt_nodes nodes
     JOIN mssmt_roots roots
       ON nodes.hash_key = roots.root_hash AND
-             nodes.namespace = roots.namespace
+         nodes.namespace = roots.namespace
     JOIN universe_roots uroots
       ON roots.namespace = uroots.namespace_root
 ), aggregated AS (
@@ -215,8 +215,17 @@ WITH asset_supply AS (
     JOIN genesis_info_view gen
         ON leaves.asset_genesis_id = gen.gen_asset_id
     GROUP BY gen.asset_id
+), group_supply AS (
+    SELECT sum AS num_assets, uroots.group_key AS group_key
+    FROM mssmt_nodes nodes
+    JOIN mssmt_roots roots
+      ON nodes.hash_key = roots.root_hash AND
+         nodes.namespace = roots.namespace
+    JOIN universe_roots uroots
+      ON roots.namespace = uroots.namespace_root
 ), asset_info AS (
-    SELECT asset_supply.supply, gen.asset_id AS asset_id, 
+    SELECT asset_supply.supply, group_supply.num_assets AS group_supply,
+           gen.asset_id AS asset_id, 
            gen.asset_tag AS asset_name, gen.asset_type AS asset_type,
            gen.block_height AS genesis_height, gen.prev_out AS genesis_prev_out,
            group_info.tweaked_group_key AS group_key
@@ -228,11 +237,15 @@ WITH asset_supply AS (
     -- doesn't have a group key.
     LEFT JOIN key_group_info_view group_info
         ON gen.gen_asset_id = group_info.gen_asset_id
+    LEFT JOIN group_supply
+        ON group_supply.group_key = group_info.x_only_group_key
     WHERE (gen.asset_tag = sqlc.narg('asset_name') OR sqlc.narg('asset_name') IS NULL) AND
           (gen.asset_type = sqlc.narg('asset_type') OR sqlc.narg('asset_type') IS NULL) AND
           (gen.asset_id = sqlc.narg('asset_id') OR sqlc.narg('asset_id') IS NULL)
 )
-SELECT asset_info.supply AS asset_supply, asset_info.asset_name AS asset_name,
+SELECT asset_info.supply AS asset_supply,
+    asset_info.group_supply AS group_supply,
+    asset_info.asset_name AS asset_name,
     asset_info.asset_type AS asset_type, asset_info.asset_id AS asset_id,
     asset_info.genesis_height AS genesis_height,
     asset_info.genesis_prev_out AS genesis_prev_out,

tapdb/universe_stats.go

@@ -461,6 +461,7 @@ func (u *UniverseStats) QuerySyncStats(ctx context.Context,
 				),
 				TotalSyncs:  uint64(assetStat.TotalSyncs),
 				TotalProofs: uint64(assetStat.TotalProofs),
+				GroupSupply: uint64(assetStat.GroupSupply.Int64),
 			}
 
 			if len(assetStat.GroupKey) > 0 {

universe/interface.go

@@ -634,6 +634,10 @@ type AssetSyncSnapshot struct {
 	// GroupKey is the optional group key of the asset.
 	GroupKey *btcec.PublicKey
 
+	// GroupSupply is the total supply of the whole asset group. This is
+	// only set for grouped assets.
+	GroupSupply uint64
+
 	// GenesisPoint is the first previous output that created the asset.
 	GenesisPoint wire.OutPoint