add pub functionality for zaino (#8964)

* add pub functionality for zaino

* updated doc comment with review suggestion

zebra-chain/src/parameters/network_upgrade.rs

@@ -163,6 +163,12 @@ impl From<ConsensusBranchId> for u32 {
     }
 }
 
+impl From<u32> for ConsensusBranchId {
+    fn from(branch: u32) -> Self {
+        ConsensusBranchId(branch)
+    }
+}
+
 impl ToHex for &ConsensusBranchId {
     fn encode_hex<T: FromIterator<char>>(&self) -> T {
         self.bytes_in_display_order().encode_hex()

zebra-rpc/src/methods.rs

@@ -1510,11 +1510,23 @@ pub struct AddressBalance {
 
 /// A hex-encoded [`ConsensusBranchId`] string.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, Hash, serde::Serialize, serde::Deserialize)]
-struct ConsensusBranchIdHex(#[serde(with = "hex")] ConsensusBranchId);
+pub struct ConsensusBranchIdHex(#[serde(with = "hex")] ConsensusBranchId);
+
+impl ConsensusBranchIdHex {
+    /// Returns a new instance of ['ConsensusBranchIdHex'].
+    pub fn new(consensus_branch_id: u32) -> Self {
+        ConsensusBranchIdHex(consensus_branch_id.into())
+    }
+
+    /// Returns the value of the ['ConsensusBranchId'].
+    pub fn inner(&self) -> u32 {
+        self.0.into()
+    }
+}
 
 /// Information about [`NetworkUpgrade`] activation.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
-struct NetworkUpgradeInfo {
+pub struct NetworkUpgradeInfo {
     /// Name of upgrade, string.
     ///
     /// Ignored by lightwalletd, but useful for debugging.
@@ -1528,9 +1540,29 @@ struct NetworkUpgradeInfo {
     status: NetworkUpgradeStatus,
 }
 
+impl NetworkUpgradeInfo {
+    /// Constructs [`NetworkUpgradeInfo`] from its constituent parts.
+    pub fn from_parts(
+        name: NetworkUpgrade,
+        activation_height: Height,
+        status: NetworkUpgradeStatus,
+    ) -> Self {
+        Self {
+            name,
+            activation_height,
+            status,
+        }
+    }
+
+    /// Returns the contents of ['NetworkUpgradeInfo'].
+    pub fn into_parts(self) -> (NetworkUpgrade, Height, NetworkUpgradeStatus) {
+        (self.name, self.activation_height, self.status)
+    }
+}
+
 /// The activation status of a [`NetworkUpgrade`].
 #[derive(Copy, Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
-enum NetworkUpgradeStatus {
+pub enum NetworkUpgradeStatus {
     /// The network upgrade is currently active.
     ///
     /// Includes all network upgrades that have previously activated,
@@ -1551,7 +1583,7 @@ enum NetworkUpgradeStatus {
 ///
 /// These branch IDs are different when the next block is a network upgrade activation block.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, serde::Serialize, serde::Deserialize)]
-struct TipConsensusBranch {
+pub struct TipConsensusBranch {
     /// Branch ID used to validate the current chain tip, big-endian, hex-encoded.
     #[serde(rename = "chaintip")]
     chain_tip: ConsensusBranchIdHex,
@@ -1561,6 +1593,21 @@ struct TipConsensusBranch {
     next_block: ConsensusBranchIdHex,
 }
 
+impl TipConsensusBranch {
+    /// Constructs [`TipConsensusBranch`] from its constituent parts.
+    pub fn from_parts(chain_tip: u32, next_block: u32) -> Self {
+        Self {
+            chain_tip: ConsensusBranchIdHex::new(chain_tip),
+            next_block: ConsensusBranchIdHex::new(next_block),
+        }
+    }
+
+    /// Returns the contents of ['TipConsensusBranch'].
+    pub fn into_parts(self) -> (u32, u32) {
+        (self.chain_tip.inner(), self.next_block.inner())
+    }
+}
+
 /// Response to a `sendrawtransaction` RPC request.
 ///
 /// Contains the hex-encoded hash of the sent transaction.
@@ -1793,6 +1840,26 @@ impl Default for GetBlockTrees {
     }
 }
 
+impl GetBlockTrees {
+    /// Constructs a new instance of ['GetBlockTrees'].
+    pub fn new(sapling: u64, orchard: u64) -> Self {
+        GetBlockTrees {
+            sapling: SaplingTrees { size: sapling },
+            orchard: OrchardTrees { size: orchard },
+        }
+    }
+
+    /// Returns sapling data held by ['GetBlockTrees'].
+    pub fn sapling(self) -> u64 {
+        self.sapling.size
+    }
+
+    /// Returns orchard data held by ['GetBlockTrees'].
+    pub fn orchard(self) -> u64 {
+        self.orchard.size
+    }
+}
+
 /// Sapling note commitment tree information.
 #[derive(Copy, Clone, Debug, Eq, PartialEq, serde::Deserialize, serde::Serialize)]
 pub struct SaplingTrees {

zebra-rpc/src/methods/trees.rs

@@ -105,6 +105,19 @@ impl GetTreestate {
             orchard,
         }
     }
+
+    /// Returns the contents of ['GetTreeState'].
+    pub fn into_parts(self) -> (Hash, Height, u32, Option<Vec<u8>>, Option<Vec<u8>>) {
+        (
+            self.hash,
+            self.height,
+            self.time,
+            self.sapling
+                .map(|treestate| treestate.commitments.final_state),
+            self.orchard
+                .map(|treestate| treestate.commitments.final_state),
+        )
+    }
 }
 
 impl Default for GetTreestate {
@@ -123,22 +136,46 @@ impl Default for GetTreestate {
 ///
 /// [1]: https://zcash.github.io/rpc/z_gettreestate.html
 #[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
-struct Treestate<Tree: AsRef<[u8]>> {
+pub struct Treestate<Tree: AsRef<[u8]>> {
     /// Contains an Orchard or Sapling serialized note commitment tree,
     /// hex-encoded.
     commitments: Commitments<Tree>,
 }
 
+impl<Tree: AsRef<[u8]>> Treestate<Tree> {
+    /// Returns a new instance of ['Treestate'].
+    pub fn new(commitments: Commitments<Tree>) -> Self {
+        Treestate { commitments }
+    }
+
+    /// Returns a reference to the commitments.
+    pub fn inner(&self) -> &Commitments<Tree> {
+        &self.commitments
+    }
+}
+
 /// A wrapper that contains either an Orchard or Sapling note commitment tree.
 ///
 /// Note that in the original [`z_gettreestate`][1] RPC, [`Commitments`] also
 /// contains the field `finalRoot`. Zebra does *not* use this field.
 ///
 /// [1]: https://zcash.github.io/rpc/z_gettreestate.html
 #[derive(Clone, Debug, Eq, PartialEq, serde::Serialize)]
-struct Commitments<Tree: AsRef<[u8]>> {
+pub struct Commitments<Tree: AsRef<[u8]>> {
     /// Orchard or Sapling serialized note commitment tree, hex-encoded.
     #[serde(with = "hex")]
     #[serde(rename = "finalState")]
     final_state: Tree,
 }
+
+impl<Tree: AsRef<[u8]>> Commitments<Tree> {
+    /// Returns a new instance of ['Commitments'].
+    pub fn new(final_state: Tree) -> Self {
+        Commitments { final_state }
+    }
+
+    /// Returns a reference to the final_state.
+    pub fn inner(&self) -> &Tree {
+        &self.final_state
+    }
+}