feat: add parseZcashPczt ffi method

libs/ur-registry-ffi/src/zcash/zcash_pczt.rs

@@ -1,9 +1,10 @@
-use crate::export;
+use crate::{export, util_internal::string_helper::remove_prefix_0x};
+use anyhow::{format_err, Error};
 use serde_json::json;
 use ur_registry::{registry_types::ZCASH_PCZT, zcash::zcash_pczt::ZcashPczt};
 
 export! {
-    @Java_com_keystone_sdk_KeystoneNativeSDK_generateZcashPcZt
+    @Java_com_keystone_sdk_KeystoneNativeSDK_generateZcashPczt
     fn generate_zcash_pczt(
         data: &str
     ) -> String {
@@ -31,4 +32,24 @@ export! {
         });
         ur.to_string()
     }
+
+    @Java_com_keystone_sdk_KeystoneNativeSDK_parseZcashPczt
+    fn parse_zcash_pczt(ur_type: &str, cbor_hex: &str) -> String {
+        if ZCASH_PCZT.get_type() != ur_type {
+            return json!({"error": "type not match"}).to_string();
+        }
+
+        let parse = || -> Result<String, Error> {
+            let cbor = hex::decode(remove_prefix_0x(cbor_hex).to_string())?;
+            let pczt = ZcashPczt::try_from(cbor).map_err(|_| format_err!(""))?;
+            let pczt_hex = hex::encode(pczt.get_data());
+            Ok(pczt_hex)
+        };
+        match parse() {
+            Ok(v) => json!({
+                "pczt": v,
+            }).to_string(),
+            Err(_) => json!({"error": "PCZT is invalid"}).to_string(),
+        }
+    }
 }