refactor: remove duplicate NUT08 struct

crates/cashu/src/nuts/mod.rs

@@ -32,15 +32,13 @@ pub use nut03::{SwapRequest, SwapResponse};
 pub use nut04::{
     MintBolt11Request, MintBolt11Response, MintQuoteBolt11Request, MintQuoteBolt11Response,
 };
-#[cfg(not(feature = "nut08"))]
-pub use nut05::{MeltBolt11Request, MeltBolt11Response};
-pub use nut05::{MeltQuoteBolt11Request, MeltQuoteBolt11Response};
+pub use nut05::{
+    MeltBolt11Request, MeltBolt11Response, MeltQuoteBolt11Request, MeltQuoteBolt11Response,
+};
 pub use nut06::{MintInfo, MintVersion, Nuts};
 #[cfg(feature = "wallet")]
 #[cfg(feature = "nut07")]
 pub use nut07::{CheckStateRequest, CheckStateResponse};
-#[cfg(feature = "nut08")]
-pub use nut08::{MeltBolt11Request, MeltBolt11Response};
 #[cfg(feature = "nut09")]
 pub use nut09::{RestoreRequest, RestoreResponse};
 #[cfg(feature = "nut10")]

crates/cashu/src/nuts/nut05.rs

@@ -3,6 +3,8 @@
 
 use serde::{Deserialize, Serialize};
 
+#[cfg(feature = "nut08")]
+use super::{BlindSignature, BlindedMessage};
 use super::{CurrencyUnit, PaymentMethod};
 use crate::nuts::Proofs;
 use crate::types::MeltQuote;
@@ -51,6 +53,10 @@ pub struct MeltBolt11Request {
     pub quote: String,
     /// Proofs
     pub inputs: Proofs,
+    /// Blinded Message that can be used to return change [NUT-08]
+    /// Amount field of BlindedMessages `SHOULD` be set to zero
+    #[cfg(feature = "nut08")]
+    pub outputs: Option<Vec<BlindedMessage>>,
 }
 
 impl MeltBolt11Request {
@@ -66,6 +72,9 @@ pub struct MeltBolt11Response {
     pub paid: bool,
     /// Bolt11 preimage
     pub payment_preimage: Option<String>,
+    /// Change
+    #[cfg(feature = "nut08")]
+    pub change: Option<Vec<BlindSignature>>,
 }
 
 /// Melt Method Settings

crates/cashu/src/nuts/nut08.rs

@@ -3,26 +3,10 @@
 
 use serde::{Deserialize, Serialize};
 
-use super::{BlindSignature, BlindedMessage, Proofs};
+use super::{MeltBolt11Request, MeltBolt11Response};
 use crate::Amount;
 
-/// Melt Bolt11 Request [NUT-08]
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct MeltBolt11Request {
-    /// Quote ID
-    pub quote: String,
-    /// Proofs
-    pub inputs: Proofs,
-    /// Blinded Message that can be used to return change [NUT-08]
-    /// Amount field of BlindedMessages `SHOULD` be set to zero
-    pub outputs: Option<Vec<BlindedMessage>>,
-}
-
 impl MeltBolt11Request {
-    pub fn proofs_amount(&self) -> Amount {
-        self.inputs.iter().map(|proof| proof.amount).sum()
-    }
-
     pub fn output_amount(&self) -> Option<Amount> {
         self.outputs
             .as_ref()
@@ -30,15 +14,6 @@ impl MeltBolt11Request {
     }
 }
 
-/// Melt Response [NUT-08]
-/// Lightning fee return [NUT-08]
-#[derive(Debug, Clone, PartialEq, Eq, Serialize, Deserialize)]
-pub struct MeltBolt11Response {
-    pub paid: bool,
-    pub payment_preimage: Option<String>,
-    pub change: Option<Vec<BlindSignature>>,
-}
-
 impl MeltBolt11Response {
     pub fn change_amount(&self) -> Option<Amount> {
         self.change