From c4241aeb98007d1da1387efc03eb604944931c37 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?P=C3=A9ter=20Ott?= <ottpeter@tuta.io>
Date: Sat, 17 Dec 2022 17:01:00 +0100
Subject: [PATCH] Changes return value of mint_root to return MintRootResult

---
 contract/src/metadata.rs | 7 +++++++
 contract/src/mint.rs     | 9 +++++++--
 2 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/contract/src/metadata.rs b/contract/src/metadata.rs
index e16041d..6c76da1 100644
--- a/contract/src/metadata.rs
+++ b/contract/src/metadata.rs
@@ -73,4 +73,11 @@ impl NonFungibleTokenMetadata for Contract {
     fn nft_metadata(&self) -> NFTContractMetadata {
         self.metadata.get().unwrap()
     }
+}
+
+#[derive(Serialize, Deserialize, Debug)]
+#[serde(crate = "near_sdk::serde")]
+pub struct MintRootResult {
+    pub contract: AccountId,                                        // Name of the minting contract
+    pub root_id: TokenId,                                           // ID of the RootNFT
 }
\ No newline at end of file
diff --git a/contract/src/mint.rs b/contract/src/mint.rs
index 58d3986..1b0c08a 100644
--- a/contract/src/mint.rs
+++ b/contract/src/mint.rs
@@ -14,7 +14,7 @@ impl Contract {
         &mut self,
         metadata: TokenMetadata,
         receiver_id: AccountId,
-    ) {
+    ) -> MintRootResult {
         log!("Starting MintRoot...");
 
         assert_eq!(
@@ -65,10 +65,15 @@ impl Contract {
 
         env::log_str(&nft_mint_log.to_string());                                                // Log the serialized json.
 
-        self.create_children(token_id.clone(), token_id);                                       // This has to happen before the refund
+        self.create_children(token_id.clone(), token_id.clone());                               // This has to happen before the refund
 
         let required_storage_in_bytes = env::storage_usage() - initial_storage_usage;
         refund_deposit(required_storage_in_bytes);                                              // Refund not-used storage
+
+        MintRootResult {
+            contract: env::current_account_id(),
+            root_id: token_id
+        }
     }